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cfg80211: allow requesting SMPS mode on ap start
[linux-2.6-block.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
d98ad83e 5 * Copyright 2013-2014 Intel Mobile Communications GmbH
f0706e82
JB		 6 *
7 * This file is GPLv2 as found in COPYING.
8 */
9
e8cbb4cb 10#include <linux/ieee80211.h>
f0706e82
JB		 11#include <linux/nl80211.h>
12#include <linux/rtnetlink.h>
5a0e3ad6 13#include <linux/slab.h>
881d966b 14#include <net/net_namespace.h>
5dfdaf58 15#include <linux/rcupdate.h>
dfe018bf 16#include <linux/if_ether.h>
f0706e82
JB		 17#include <net/cfg80211.h>
18#include "ieee80211_i.h"
24487981 19#include "driver-ops.h"
e0eb6859 20#include "cfg.h"
2c8dccc7 21#include "rate.h"
c5dd9c2b 22#include "mesh.h"
c5dd9c2b 23
552bff0c
JB		 24static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
25 const char *name,
84efbb84
JB		 26 enum nl80211_iftype type,
27 u32 *flags,
28 struct vif_params *params)
f0706e82
JB		 29{
30 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 31 struct wireless_dev *wdev;
8cc9a739
MW		 32 struct ieee80211_sub_if_data *sdata;
33 int err;
f0706e82 34
84efbb84 35 err = ieee80211_if_add(local, name, &wdev, type, params);
f9e10ce4
JB		 36 if (err)
37 return ERR_PTR(err);
8cc9a739 38
f9e10ce4 39 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 40 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 41 sdata->u.mntr_flags = *flags;
42 }
43
84efbb84 44 return wdev;
f0706e82
JB		 45}
46
84efbb84 47static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 48{
84efbb84 49 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 50
75636525 51 return 0;
f0706e82
JB		 52}
53
e36d56b6
JB		 54static int ieee80211_change_iface(struct wiphy *wiphy,
55 struct net_device *dev,
2ec600d6
LCC		 56 enum nl80211_iftype type, u32 *flags,
57 struct vif_params *params)
42613db7 58{
9607e6b6 59 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 60 int ret;
42613db7 61
05c914fe 62 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 63 if (ret)
64 return ret;
42613db7 65
9bc383de
JB		 66 if (type == NL80211_IFTYPE_AP_VLAN &&
67 params && params->use_4addr == 0)
a9b3cd7f 68 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 69 else if (type == NL80211_IFTYPE_STATION &&
70 params && params->use_4addr >= 0)
71 sdata->u.mgd.use_4addr = params->use_4addr;
72
85416a4f
CL		 73 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
74 struct ieee80211_local *local = sdata->local;
75
76 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 77 u32 mask = MONITOR_FLAG_COOK_FRAMES |
78 MONITOR_FLAG_ACTIVE;
79
85416a4f 80 /*
31eba5bc
FF		 81 * Prohibit MONITOR_FLAG_COOK_FRAMES and
82 * MONITOR_FLAG_ACTIVE to be changed while the
83 * interface is up.
85416a4f
CL		 84 * Else we would need to add a lot of cruft
85 * to update everything:
86 * cooked_mntrs, monitor and all fif_* counters
87 * reconfigure hardware
88 */
31eba5bc 89 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 90 return -EBUSY;
91
92 ieee80211_adjust_monitor_flags(sdata, -1);
93 sdata->u.mntr_flags = *flags;
94 ieee80211_adjust_monitor_flags(sdata, 1);
95
96 ieee80211_configure_filter(local);
97 } else {
98 /*
99 * Because the interface is down, ieee80211_do_stop
100 * and ieee80211_do_open take care of "everything"
101 * mentioned in the comment above.
102 */
103 sdata->u.mntr_flags = *flags;
104 }
105 }
f7917af9 106
42613db7
JB		 107 return 0;
108}
109
f142c6b9
JB		 110static int ieee80211_start_p2p_device(struct wiphy *wiphy,
111 struct wireless_dev *wdev)
112{
b6a55015
LC		 113 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
114 int ret;
115
116 mutex_lock(&sdata->local->chanctx_mtx);
117 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
118 mutex_unlock(&sdata->local->chanctx_mtx);
119 if (ret < 0)
120 return ret;
121
f142c6b9
JB		 122 return ieee80211_do_open(wdev, true);
123}
124
125static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
126 struct wireless_dev *wdev)
127{
128 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
129}
130
b53be792
SW		 131static int ieee80211_set_noack_map(struct wiphy *wiphy,
132 struct net_device *dev,
133 u16 noack_map)
134{
135 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
136
137 sdata->noack_map = noack_map;
138 return 0;
139}
140
e8cbb4cb 141static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 142 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 143 struct key_params *params)
144{
26a58456 145 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 146 struct ieee80211_local *local = sdata->local;
e8cbb4cb 147 struct sta_info *sta = NULL;
2475b1cc 148 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 149 struct ieee80211_key *key;
3b96766f 150 int err;
e8cbb4cb 151
26a58456 152 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 153 return -ENETDOWN;
154
97359d12 155 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 156 switch (params->cipher) {
157 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 158 case WLAN_CIPHER_SUITE_TKIP:
97359d12 159 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 160 if (IS_ERR(local->wep_tx_tfm))
97359d12 161 return -EINVAL;
3cfcf6ac 162 break;
2475b1cc
MS		 163 case WLAN_CIPHER_SUITE_CCMP:
164 case WLAN_CIPHER_SUITE_AES_CMAC:
165 case WLAN_CIPHER_SUITE_GCMP:
166 break;
e8cbb4cb 167 default:
2475b1cc 168 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 169 break;
e8cbb4cb
JB		 170 }
171
97359d12 172 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 173 params->key, params->seq_len, params->seq,
174 cs);
1ac62ba7
BH		 175 if (IS_ERR(key))
176 return PTR_ERR(key);
db4d1169 177
e31b8213
JB		 178 if (pairwise)
179 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
180
2475b1cc 181 mutex_lock(&local->sta_mtx);
3b96766f 182
e8cbb4cb 183 if (mac_addr) {
ff973af7
TP		 184 if (ieee80211_vif_is_mesh(&sdata->vif))
185 sta = sta_info_get(sdata, mac_addr);
186 else
187 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 188 /*
189 * The ASSOC test makes sure the driver is ready to
190 * receive the key. When wpa_supplicant has roamed
191 * using FT, it attempts to set the key before
192 * association has completed, this rejects that attempt
193 * so it will set the key again after assocation.
194 *
195 * TODO: accept the key if we have a station entry and
196 * add it to the device after the station.
197 */
198 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 199 ieee80211_key_free_unused(key);
3b96766f
JB		 200 err = -ENOENT;
201 goto out_unlock;
db4d1169 202 }
e8cbb4cb
JB		 203 }
204
e548c49e
JB		 205 switch (sdata->vif.type) {
206 case NL80211_IFTYPE_STATION:
207 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
208 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
209 break;
210 case NL80211_IFTYPE_AP:
211 case NL80211_IFTYPE_AP_VLAN:
212 /* Keys without a station are used for TX only */
213 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
214 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
215 break;
216 case NL80211_IFTYPE_ADHOC:
217 /* no MFP (yet) */
218 break;
219 case NL80211_IFTYPE_MESH_POINT:
220#ifdef CONFIG_MAC80211_MESH
221 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
222 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
223 break;
224#endif
225 case NL80211_IFTYPE_WDS:
226 case NL80211_IFTYPE_MONITOR:
227 case NL80211_IFTYPE_P2P_DEVICE:
228 case NL80211_IFTYPE_UNSPECIFIED:
229 case NUM_NL80211_IFTYPES:
230 case NL80211_IFTYPE_P2P_CLIENT:
231 case NL80211_IFTYPE_P2P_GO:
232 /* shouldn't happen */
233 WARN_ON_ONCE(1);
234 break;
235 }
236
2475b1cc
MS		 237 if (sta)
238 sta->cipher_scheme = cs;
239
3ffc2a90 240 err = ieee80211_key_link(key, sdata, sta);
db4d1169 241
3b96766f 242 out_unlock:
2475b1cc 243 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 244
245 return err;
e8cbb4cb
JB		 246}
247
248static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 249 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 250{
5c0c3641
JB		 251 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
252 struct ieee80211_local *local = sdata->local;
e8cbb4cb 253 struct sta_info *sta;
5c0c3641 254 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 255 int ret;
256
5c0c3641
JB		 257 mutex_lock(&local->sta_mtx);
258 mutex_lock(&local->key_mtx);
3b96766f 259
e8cbb4cb 260 if (mac_addr) {
3b96766f
JB		 261 ret = -ENOENT;
262
0e5ded5a 263 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 264 if (!sta)
3b96766f 265 goto out_unlock;
e8cbb4cb 266
5c0c3641 267 if (pairwise)
2475b1cc 268 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 269 else
40b275b6 270 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 271 } else
40b275b6 272 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 273
5c0c3641 274 if (!key) {
3b96766f
JB		 275 ret = -ENOENT;
276 goto out_unlock;
277 }
e8cbb4cb 278
3b8d9c29 279 ieee80211_key_free(key, true);
e8cbb4cb 280
3b96766f
JB		 281 ret = 0;
282 out_unlock:
5c0c3641
JB		 283 mutex_unlock(&local->key_mtx);
284 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 285
286 return ret;
e8cbb4cb
JB		 287}
288
62da92fb 289static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 290 u8 key_idx, bool pairwise, const u8 *mac_addr,
291 void *cookie,
62da92fb
JB		 292 void (*callback)(void *cookie,
293 struct key_params *params))
294{
14db74bc 295 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 296 struct sta_info *sta = NULL;
297 u8 seq[6] = {0};
298 struct key_params params;
e31b8213 299 struct ieee80211_key *key = NULL;
aba83a0b 300 u64 pn64;
62da92fb
JB		 301 u32 iv32;
302 u16 iv16;
303 int err = -ENOENT;
304
14db74bc
JB		 305 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
306
3b96766f
JB		 307 rcu_read_lock();
308
62da92fb 309 if (mac_addr) {
0e5ded5a 310 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 311 if (!sta)
312 goto out;
313
354e159d 314 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 315 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 316 else if (!pairwise &&
317 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 318 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 319 } else
a3836e02 320 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 321
322 if (!key)
323 goto out;
324
325 memset(&params, 0, sizeof(params));
326
97359d12 327 params.cipher = key->conf.cipher;
62da92fb 328
97359d12
JB		 329 switch (key->conf.cipher) {
330 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 331 iv32 = key->u.tkip.tx.iv32;
332 iv16 = key->u.tkip.tx.iv16;
62da92fb 333
24487981
JB		 334 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
335 drv_get_tkip_seq(sdata->local,
336 key->conf.hw_key_idx,
337 &iv32, &iv16);
62da92fb
JB		 338
339 seq[0] = iv16 & 0xff;
340 seq[1] = (iv16 >> 8) & 0xff;
341 seq[2] = iv32 & 0xff;
342 seq[3] = (iv32 >> 8) & 0xff;
343 seq[4] = (iv32 >> 16) & 0xff;
344 seq[5] = (iv32 >> 24) & 0xff;
345 params.seq = seq;
346 params.seq_len = 6;
347 break;
97359d12 348 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 349 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
350 seq[0] = pn64;
351 seq[1] = pn64 >> 8;
352 seq[2] = pn64 >> 16;
353 seq[3] = pn64 >> 24;
354 seq[4] = pn64 >> 32;
355 seq[5] = pn64 >> 40;
62da92fb
JB		 356 params.seq = seq;
357 params.seq_len = 6;
358 break;
97359d12 359 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 360 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
361 seq[0] = pn64;
362 seq[1] = pn64 >> 8;
363 seq[2] = pn64 >> 16;
364 seq[3] = pn64 >> 24;
365 seq[4] = pn64 >> 32;
366 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 367 params.seq = seq;
368 params.seq_len = 6;
369 break;
62da92fb
JB		 370 }
371
372 params.key = key->conf.key;
373 params.key_len = key->conf.keylen;
374
375 callback(cookie, &params);
376 err = 0;
377
378 out:
3b96766f 379 rcu_read_unlock();
62da92fb
JB		 380 return err;
381}
382
e8cbb4cb
JB		 383static int ieee80211_config_default_key(struct wiphy *wiphy,
384 struct net_device *dev,
dbd2fd65
JB		 385 u8 key_idx, bool uni,
386 bool multi)
e8cbb4cb 387{
ad0e2b5a 388 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 389
f7e0104c 390 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 391
392 return 0;
393}
394
3cfcf6ac
JM		 395static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
396 struct net_device *dev,
397 u8 key_idx)
398{
66c52421 399 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 400
3cfcf6ac
JM		 401 ieee80211_set_default_mgmt_key(sdata, key_idx);
402
3cfcf6ac
JM		 403 return 0;
404}
405
6b62bf32
TP		 406void sta_set_rate_info_tx(struct sta_info *sta,
407 const struct ieee80211_tx_rate *rate,
408 struct rate_info *rinfo)
409{
410 rinfo->flags = 0;
8bc83c24 411 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 412 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 413 rinfo->mcs = rate->idx;
414 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
415 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
416 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
417 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
418 } else {
419 struct ieee80211_supported_band *sband;
2103dec1
SW		 420 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
421 u16 brate;
422
8bc83c24
JB		 423 sband = sta->local->hw.wiphy->bands[
424 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 425 brate = sband->bitrates[rate->idx].bitrate;
426 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 427 }
6b62bf32
TP		 428 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
429 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
8bc83c24
JB		 430 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
431 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
432 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
433 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
6b62bf32
TP		 434 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
435 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 436}
437
003e676a
S		 438void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
439{
440 rinfo->flags = 0;
441
442 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
443 rinfo->flags |= RATE_INFO_FLAGS_MCS;
444 rinfo->mcs = sta->last_rx_rate_idx;
445 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
446 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
447 rinfo->nss = sta->last_rx_rate_vht_nss;
448 rinfo->mcs = sta->last_rx_rate_idx;
449 } else {
450 struct ieee80211_supported_band *sband;
2103dec1
SW		 451 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
452 u16 brate;
003e676a
S		 453
454 sband = sta->local->hw.wiphy->bands[
455 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 456 brate = sband->bitrates[sta->last_rx_rate_idx].bitrate;
457 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
003e676a
S		 458 }
459
460 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
461 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
462 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
463 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
1b8d242a 464 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ)
003e676a 465 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
1b8d242a 466 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ)
003e676a 467 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
1b8d242a 468 if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ)
003e676a
S		 469 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
470}
471
c5dd9c2b 472static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 473 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 474{
3b53fde8 475 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 476 struct ieee80211_local *local = sdata->local;
c5dd9c2b 477 struct sta_info *sta;
d0709a65
JB		 478 int ret = -ENOENT;
479
66572cfc 480 mutex_lock(&local->sta_mtx);
c5dd9c2b 481
3b53fde8 482 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 483 if (sta) {
484 ret = 0;
17741cdc 485 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 486 sta_set_sinfo(sta, sinfo);
487 }
c5dd9c2b 488
66572cfc 489 mutex_unlock(&local->sta_mtx);
c5dd9c2b 490
d0709a65 491 return ret;
c5dd9c2b
LCC		 492}
493
1289723e
HS		 494static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
495 int idx, struct survey_info *survey)
496{
497 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
498
1289723e
HS		 499 return drv_get_survey(local, idx, survey);
500}
501
7bbdd2d9 502static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 503 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 504{
abe60632 505 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 506 struct ieee80211_local *local = sdata->local;
7bbdd2d9 507 struct sta_info *sta;
d0709a65 508 int ret = -ENOENT;
7bbdd2d9 509
66572cfc 510 mutex_lock(&local->sta_mtx);
7bbdd2d9 511
0e5ded5a 512 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 513 if (sta) {
514 ret = 0;
515 sta_set_sinfo(sta, sinfo);
516 }
517
66572cfc 518 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 519
520 return ret;
7bbdd2d9
JB		 521}
522
55de908a 523static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 524 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 525{
526 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 527 struct ieee80211_sub_if_data *sdata;
528 int ret = 0;
3d9e6e12 529
4bf88530 530 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 531 return 0;
3d9e6e12 532
34a3740d 533 mutex_lock(&local->mtx);
55de908a
JB		 534 mutex_lock(&local->iflist_mtx);
535 if (local->use_chanctx) {
536 sdata = rcu_dereference_protected(
537 local->monitor_sdata,
538 lockdep_is_held(&local->iflist_mtx));
539 if (sdata) {
540 ieee80211_vif_release_channel(sdata);
4bf88530 541 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 542 IEEE80211_CHANCTX_EXCLUSIVE);
543 }
544 } else if (local->open_count == local->monitors) {
675a0b04 545 local->_oper_chandef = *chandef;
55de908a
JB		 546 ieee80211_hw_config(local, 0);
547 }
3d9e6e12 548
4bf88530
JB		 549 if (ret == 0)
550 local->monitor_chandef = *chandef;
55de908a 551 mutex_unlock(&local->iflist_mtx);
34a3740d 552 mutex_unlock(&local->mtx);
3d9e6e12 553
55de908a 554 return ret;
e8c9bd5b
JB		 555}
556
02945821 557static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 558 const u8 *resp, size_t resp_len,
559 const struct ieee80211_csa_settings *csa)
02945821 560{
aa7a0080 561 struct probe_resp *new, *old;
02945821
AN		 562
563 if (!resp || !resp_len)
aba4e6ff 564 return 1;
02945821 565
7ca133bc 566 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 567
aa7a0080 568 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 569 if (!new)
570 return -ENOMEM;
571
aa7a0080
ES		 572 new->len = resp_len;
573 memcpy(new->data, resp, resp_len);
02945821 574
af296bdb
MK		 575 if (csa)
576 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
577 csa->n_counter_offsets_presp *
578 sizeof(new->csa_counter_offsets[0]));
579
02945821 580 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 581 if (old)
582 kfree_rcu(old, rcu_head);
02945821
AN		 583
584 return 0;
585}
586
0ae07968 587static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 588 struct cfg80211_beacon_data *params,
589 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 590{
591 struct beacon_data *new, *old;
592 int new_head_len, new_tail_len;
8860020e
JB		 593 int size, err;
594 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 595
7ca133bc
SW		 596 old = sdata_dereference(sdata->u.ap.beacon, sdata);
597
5dfdaf58 598
5dfdaf58
JB		 599 /* Need to have a beacon head if we don't have one yet */
600 if (!params->head && !old)
8860020e 601 return -EINVAL;
5dfdaf58
JB		 602
603 /* new or old head? */
604 if (params->head)
605 new_head_len = params->head_len;
606 else
607 new_head_len = old->head_len;
608
609 /* new or old tail? */
610 if (params->tail || !old)
611 /* params->tail_len will be zero for !params->tail */
612 new_tail_len = params->tail_len;
613 else
614 new_tail_len = old->tail_len;
615
616 size = sizeof(*new) + new_head_len + new_tail_len;
617
618 new = kzalloc(size, GFP_KERNEL);
619 if (!new)
620 return -ENOMEM;
621
622 /* start filling the new info now */
623
5dfdaf58
JB		 624 /*
625 * pointers go into the block we allocated,
626 * memory is | beacon_data | head | tail |
627 */
628 new->head = ((u8 *) new) + sizeof(*new);
629 new->tail = new->head + new_head_len;
630 new->head_len = new_head_len;
631 new->tail_len = new_tail_len;
632
af296bdb
MK		 633 if (csa) {
634 new->csa_current_counter = csa->count;
635 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
636 csa->n_counter_offsets_beacon *
637 sizeof(new->csa_counter_offsets[0]));
638 }
639
5dfdaf58
JB		 640 /* copy in head */
641 if (params->head)
642 memcpy(new->head, params->head, new_head_len);
643 else
644 memcpy(new->head, old->head, new_head_len);
645
646 /* copy in optional tail */
647 if (params->tail)
648 memcpy(new->tail, params->tail, new_tail_len);
649 else
650 if (old)
651 memcpy(new->tail, old->tail, new_tail_len);
652
02945821 653 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 654 params->probe_resp_len, csa);
8860020e
JB		 655 if (err < 0)
656 return err;
657 if (err == 0)
02945821
AN		 658 changed |= BSS_CHANGED_AP_PROBE_RESP;
659
8860020e
JB		 660 rcu_assign_pointer(sdata->u.ap.beacon, new);
661
662 if (old)
663 kfree_rcu(old, rcu_head);
7827493b 664
8860020e 665 return changed;
5dfdaf58
JB		 666}
667
8860020e
JB		 668static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
669 struct cfg80211_ap_settings *params)
5dfdaf58 670{
8860020e 671 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 672 struct ieee80211_local *local = sdata->local;
5dfdaf58 673 struct beacon_data *old;
665c93a9 674 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 675 u32 changed = BSS_CHANGED_BEACON_INT |
676 BSS_CHANGED_BEACON_ENABLED |
677 BSS_CHANGED_BEACON |
339afbf4
JB		 678 BSS_CHANGED_SSID |
679 BSS_CHANGED_P2P_PS;
8860020e 680 int err;
14db74bc 681
7ca133bc 682 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 683 if (old)
684 return -EALREADY;
685
04ecd257
JB		 686 /* TODO: make hostapd tell us what it wants */
687 sdata->smps_mode = IEEE80211_SMPS_OFF;
688 sdata->needed_rx_chains = sdata->local->rx_chains;
689
34a3740d 690 mutex_lock(&local->mtx);
4bf88530 691 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 692 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 693 if (!err)
694 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 695 mutex_unlock(&local->mtx);
aa430da4
JB		 696 if (err)
697 return err;
698
665c93a9
JB		 699 /*
700 * Apply control port protocol, this allows us to
701 * not encrypt dynamic WEP control frames.
702 */
703 sdata->control_port_protocol = params->crypto.control_port_ethertype;
704 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 705 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
706 &params->crypto,
707 sdata->vif.type);
708
665c93a9
JB		 709 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
710 vlan->control_port_protocol =
711 params->crypto.control_port_ethertype;
712 vlan->control_port_no_encrypt =
713 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 714 vlan->encrypt_headroom =
715 ieee80211_cs_headroom(sdata->local,
716 &params->crypto,
717 vlan->vif.type);
665c93a9
JB		 718 }
719
8860020e
JB		 720 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
721 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 722 sdata->vif.bss_conf.enable_beacon = true;
8860020e
JB		 723
724 sdata->vif.bss_conf.ssid_len = params->ssid_len;
725 if (params->ssid_len)
726 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
727 params->ssid_len);
728 sdata->vif.bss_conf.hidden_ssid =
729 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
730
67baf663
JD		 731 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
732 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
733 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
734 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
735 if (params->p2p_opp_ps)
736 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
737 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 738
af296bdb 739 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 740 if (err < 0) {
741 ieee80211_vif_release_channel(sdata);
8860020e 742 return err;
0297ea17 743 }
8860020e
JB		 744 changed |= err;
745
1041638f
JB		 746 err = drv_start_ap(sdata->local, sdata);
747 if (err) {
7ca133bc
SW		 748 old = sdata_dereference(sdata->u.ap.beacon, sdata);
749
1041638f
JB		 750 if (old)
751 kfree_rcu(old, rcu_head);
752 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 753 ieee80211_vif_release_channel(sdata);
1041638f
JB		 754 return err;
755 }
756
057d5f4b 757 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 758 ieee80211_bss_info_change_notify(sdata, changed);
759
3edaf3e6
JB		 760 netif_carrier_on(dev);
761 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
762 netif_carrier_on(vlan->dev);
763
665c93a9 764 return 0;
5dfdaf58
JB		 765}
766
8860020e
JB		 767static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
768 struct cfg80211_beacon_data *params)
5dfdaf58 769{
14db74bc 770 struct ieee80211_sub_if_data *sdata;
5dfdaf58 771 struct beacon_data *old;
8860020e 772 int err;
5dfdaf58 773
14db74bc 774 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 775 sdata_assert_lock(sdata);
14db74bc 776
73da7d5b
SW		 777 /* don't allow changing the beacon while CSA is in place - offset
778 * of channel switch counter may change
779 */
780 if (sdata->vif.csa_active)
781 return -EBUSY;
782
7ca133bc 783 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 784 if (!old)
785 return -ENOENT;
786
af296bdb 787 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 788 if (err < 0)
789 return err;
790 ieee80211_bss_info_change_notify(sdata, err);
791 return 0;
5dfdaf58
JB		 792}
793
8860020e 794static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 795{
7b20b8e8
JB		 796 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
797 struct ieee80211_sub_if_data *vlan;
798 struct ieee80211_local *local = sdata->local;
799 struct beacon_data *old_beacon;
800 struct probe_resp *old_probe_resp;
d2859df5 801 struct cfg80211_chan_def chandef;
14db74bc 802
dbd72850
MK		 803 sdata_assert_lock(sdata);
804
7ca133bc 805 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 806 if (!old_beacon)
5dfdaf58 807 return -ENOENT;
7ca133bc 808 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 809
73da7d5b 810 /* abort any running channel switch */
59af6928 811 mutex_lock(&local->mtx);
73da7d5b 812 sdata->vif.csa_active = false;
a46992b4
LC		 813 if (sdata->csa_block_tx) {
814 ieee80211_wake_vif_queues(local, sdata,
815 IEEE80211_QUEUE_STOP_REASON_CSA);
816 sdata->csa_block_tx = false;
817 }
818
59af6928
MK		 819 mutex_unlock(&local->mtx);
820
1f3b8a2b
SW		 821 kfree(sdata->u.ap.next_beacon);
822 sdata->u.ap.next_beacon = NULL;
823
7b20b8e8 824 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 825 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
826 netif_carrier_off(vlan->dev);
827 netif_carrier_off(dev);
828
7b20b8e8 829 /* remove beacon and probe response */
a9b3cd7f 830 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 831 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
832 kfree_rcu(old_beacon, rcu_head);
833 if (old_probe_resp)
834 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 835 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 836
e716251d 837 __sta_info_flush(sdata, true);
7907c7d3 838 ieee80211_free_keys(sdata, true);
75de9113 839
d6a83228 840 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 841 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 842 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 843 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 844
a6b368f6 845 if (sdata->wdev.cac_started) {
d2859df5 846 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 847 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 848 cfg80211_cac_event(sdata->dev, &chandef,
849 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 850 GFP_KERNEL);
851 }
852
1041638f
JB		 853 drv_stop_ap(sdata->local, sdata);
854
7b20b8e8
JB		 855 /* free all potentially still buffered bcast frames */
856 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
857 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
858
34a3740d 859 mutex_lock(&local->mtx);
4e141dad 860 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 861 ieee80211_vif_release_channel(sdata);
34a3740d 862 mutex_unlock(&local->mtx);
55de908a 863
2d0ddec5 864 return 0;
5dfdaf58
JB		 865}
866
4fd6931e
JB		 867/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
868struct iapp_layer2_update {
869 u8 da[ETH_ALEN]; /* broadcast */
870 u8 sa[ETH_ALEN]; /* STA addr */
871 __be16 len; /* 6 */
872 u8 dsap; /* 0 */
873 u8 ssap; /* 0 */
874 u8 control;
875 u8 xid_info[3];
bc10502d 876} __packed;
4fd6931e
JB		 877
878static void ieee80211_send_layer2_update(struct sta_info *sta)
879{
880 struct iapp_layer2_update *msg;
881 struct sk_buff *skb;
882
883 /* Send Level 2 Update Frame to update forwarding tables in layer 2
884 * bridge devices */
885
886 skb = dev_alloc_skb(sizeof(*msg));
887 if (!skb)
888 return;
889 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
890
891 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
892 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
893
e83e6541 894 eth_broadcast_addr(msg->da);
17741cdc 895 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 896 msg->len = htons(6);
897 msg->dsap = 0;
898 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
899 msg->control = 0xaf; /* XID response lsb.1111F101.
900 * F=0 (no poll command; unsolicited frame) */
901 msg->xid_info[0] = 0x81; /* XID format identifier */
902 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
903 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
904
d0709a65
JB		 905 skb->dev = sta->sdata->dev;
906 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 907 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 908 netif_rx_ni(skb);
4fd6931e
JB		 909}
910
d582cffb
JB		 911static int sta_apply_auth_flags(struct ieee80211_local *local,
912 struct sta_info *sta,
913 u32 mask, u32 set)
914{
915 int ret;
916
917 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
918 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
919 !test_sta_flag(sta, WLAN_STA_AUTH)) {
920 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
921 if (ret)
922 return ret;
923 }
924
925 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
926 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
927 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
928 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
929 if (ret)
930 return ret;
931 }
932
933 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
934 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
935 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
936 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
937 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
938 else
939 ret = 0;
940 if (ret)
941 return ret;
942 }
943
944 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
945 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
946 test_sta_flag(sta, WLAN_STA_ASSOC)) {
947 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
948 if (ret)
949 return ret;
950 }
951
952 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
953 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
954 test_sta_flag(sta, WLAN_STA_AUTH)) {
955 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
956 if (ret)
957 return ret;
958 }
959
960 return 0;
961}
962
d9a7ddb0
JB		 963static int sta_apply_parameters(struct ieee80211_local *local,
964 struct sta_info *sta,
965 struct station_parameters *params)
4fd6931e 966{
d9a7ddb0 967 int ret = 0;
8318d78a 968 struct ieee80211_supported_band *sband;
d0709a65 969 struct ieee80211_sub_if_data *sdata = sta->sdata;
55de908a 970 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 971 u32 mask, set;
4fd6931e 972
55de908a 973 sband = local->hw.wiphy->bands[band];
ae5eb026 974
eccb8e8f
JB		 975 mask = params->sta_flags_mask;
976 set = params->sta_flags_set;
73651ee6 977
d582cffb
JB		 978 if (ieee80211_vif_is_mesh(&sdata->vif)) {
979 /*
980 * In mesh mode, ASSOCIATED isn't part of the nl80211
981 * API but must follow AUTHENTICATED for driver state.
982 */
983 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
984 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
985 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
986 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 987 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
988 /*
989 * TDLS -- everything follows authorized, but
990 * only becoming authorized is possible, not
991 * going back
992 */
993 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
994 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
995 BIT(NL80211_STA_FLAG_ASSOCIATED);
996 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
997 BIT(NL80211_STA_FLAG_ASSOCIATED);
998 }
eccb8e8f 999 }
4fd6931e 1000
68885a54
AN		 1001 /* auth flags will be set later for TDLS stations */
1002 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1003 ret = sta_apply_auth_flags(local, sta, mask, set);
1004 if (ret)
1005 return ret;
1006 }
d9a7ddb0 1007
eccb8e8f 1008 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1009 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1010 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1011 else
1012 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1013 }
4fd6931e 1014
a74a8c84
JB		 1015 if (mask & BIT(NL80211_STA_FLAG_WME))
1016 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
5394af4d 1017
eccb8e8f 1018 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 1019 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1020 set_sta_flag(sta, WLAN_STA_MFP);
1021 else
1022 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1023 }
b39c48fa 1024
07ba55d7 1025 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1026 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1027 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1028 else
1029 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1030 }
4fd6931e 1031
3b9ce80c
JB		 1032 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1033 sta->sta.uapsd_queues = params->uapsd_queues;
1034 sta->sta.max_sp = params->max_sp;
1035 }
9533b4ac 1036
51b50fbe
JB		 1037 /*
1038 * cfg80211 validates this (1-2007) and allows setting the AID
1039 * only when creating a new station entry
1040 */
1041 if (params->aid)
1042 sta->sta.aid = params->aid;
1043
73651ee6 1044 /*
ba23d206
JB		 1045 * Some of the following updates would be racy if called on an
1046 * existing station, via ieee80211_change_station(). However,
1047 * all such changes are rejected by cfg80211 except for updates
1048 * changing the supported rates on an existing but not yet used
1049 * TDLS peer.
73651ee6
JB		 1050 */
1051
4fd6931e
JB		 1052 if (params->listen_interval >= 0)
1053 sta->listen_interval = params->listen_interval;
1054
1055 if (params->supported_rates) {
2103dec1
SW		 1056 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1057 sband, params->supported_rates,
1058 params->supported_rates_len,
1059 &sta->sta.supp_rates[band]);
4fd6931e 1060 }
c5dd9c2b 1061
d9fe60de 1062 if (params->ht_capa)
ef96a842 1063 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1064 params->ht_capa, sta);
36aedc90 1065
f461be3e
MP		 1066 if (params->vht_capa)
1067 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1068 params->vht_capa, sta);
f461be3e 1069
b1bce14a 1070 if (params->opmode_notif_used) {
b1bce14a
MK		 1071 /* returned value is only needed for rc update, but the
1072 * rc isn't initialized here yet, so ignore it
1073 */
1074 __ieee80211_vht_handle_opmode(sdata, sta,
1075 params->opmode_notif,
1076 band, false);
1077 }
1078
9c3990aa 1079 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 1080#ifdef CONFIG_MAC80211_MESH
39886b61 1081 u32 changed = 0;
77ee7c89
JB		 1082
1083 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
9c3990aa 1084 switch (params->plink_state) {
57cf8043 1085 case NL80211_PLINK_ESTAB:
1617bab8
MP		 1086 if (sta->plink_state != NL80211_PLINK_ESTAB)
1087 changed = mesh_plink_inc_estab_count(
1088 sdata);
1089 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1090
1091 ieee80211_mps_sta_status_update(sta);
39886b61
TP		 1092 changed |= ieee80211_mps_set_sta_local_pm(sta,
1093 sdata->u.mesh.mshcfg.power_mode);
1617bab8
MP		 1094 break;
1095 case NL80211_PLINK_LISTEN:
57cf8043 1096 case NL80211_PLINK_BLOCKED:
1617bab8
MP		 1097 case NL80211_PLINK_OPN_SNT:
1098 case NL80211_PLINK_OPN_RCVD:
1099 case NL80211_PLINK_CNF_RCVD:
1100 case NL80211_PLINK_HOLDING:
1101 if (sta->plink_state == NL80211_PLINK_ESTAB)
1102 changed = mesh_plink_dec_estab_count(
1103 sdata);
9c3990aa 1104 sta->plink_state = params->plink_state;
3f52b7e3
MP		 1105
1106 ieee80211_mps_sta_status_update(sta);
446075d7
MP		 1107 changed |= ieee80211_mps_set_sta_local_pm(sta,
1108 NL80211_MESH_POWER_UNKNOWN);
9c3990aa
JC		 1109 break;
1110 default:
1111 /* nothing */
1112 break;
1113 }
77ee7c89
JB		 1114 }
1115
1116 switch (params->plink_action) {
1117 case NL80211_PLINK_ACTION_NO_ACTION:
1118 /* nothing */
1119 break;
1120 case NL80211_PLINK_ACTION_OPEN:
1121 changed |= mesh_plink_open(sta);
1122 break;
1123 case NL80211_PLINK_ACTION_BLOCK:
1124 changed |= mesh_plink_block(sta);
1125 break;
1617bab8 1126 }
3f52b7e3
MP		 1127
1128 if (params->local_pm)
39886b61
TP		 1129 changed |=
1130 ieee80211_mps_set_sta_local_pm(sta,
1131 params->local_pm);
6c751ef8 1132 ieee80211_mbss_info_change_notify(sdata, changed);
4daf50f2 1133#endif
902acc78 1134 }
d9a7ddb0 1135
68885a54
AN		 1136 /* set the STA state after all sta info from usermode has been set */
1137 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1138 ret = sta_apply_auth_flags(local, sta, mask, set);
1139 if (ret)
1140 return ret;
1141 }
1142
d9a7ddb0 1143 return 0;
4fd6931e
JB		 1144}
1145
1146static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1147 const u8 *mac,
1148 struct station_parameters *params)
4fd6931e 1149{
14db74bc 1150 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1151 struct sta_info *sta;
1152 struct ieee80211_sub_if_data *sdata;
73651ee6 1153 int err;
b8d476c8 1154 int layer2_update;
4fd6931e 1155
4fd6931e
JB		 1156 if (params->vlan) {
1157 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1158
05c914fe
JB		 1159 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1160 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1161 return -EINVAL;
1162 } else
1163 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1164
b203ca39 1165 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1166 return -EINVAL;
1167
1168 if (is_multicast_ether_addr(mac))
1169 return -EINVAL;
1170
1171 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1172 if (!sta)
1173 return -ENOMEM;
4fd6931e 1174
d582cffb
JB		 1175 /*
1176 * defaults -- if userspace wants something else we'll
1177 * change it accordingly in sta_apply_parameters()
1178 */
77ee7c89
JB		 1179 if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) {
1180 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1181 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
0c4972cc
AN		 1182 } else {
1183 sta->sta.tdls = true;
77ee7c89 1184 }
4fd6931e 1185
d9a7ddb0
JB		 1186 err = sta_apply_parameters(local, sta, params);
1187 if (err) {
1188 sta_info_free(local, sta);
1189 return err;
1190 }
4fd6931e 1191
d64cf63e 1192 /*
77ee7c89
JB		 1193 * for TDLS, rate control should be initialized only when
1194 * rates are known and station is marked authorized
d64cf63e
AN		 1195 */
1196 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1197 rate_control_rate_init(sta);
4fd6931e 1198
b8d476c8
JM		 1199 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1200 sdata->vif.type == NL80211_IFTYPE_AP;
1201
34e89507 1202 err = sta_info_insert_rcu(sta);
73651ee6 1203 if (err) {
73651ee6
JB		 1204 rcu_read_unlock();
1205 return err;
1206 }
1207
b8d476c8 1208 if (layer2_update)
73651ee6
JB		 1209 ieee80211_send_layer2_update(sta);
1210
1211 rcu_read_unlock();
1212
4fd6931e
JB		 1213 return 0;
1214}
1215
1216static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1217 const u8 *mac)
4fd6931e 1218{
14db74bc 1219 struct ieee80211_sub_if_data *sdata;
4fd6931e 1220
14db74bc
JB		 1221 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1222
34e89507
JB		 1223 if (mac)
1224 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 1225
b998e8bb 1226 sta_info_flush(sdata);
4fd6931e
JB		 1227 return 0;
1228}
1229
1230static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1231 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1232 struct station_parameters *params)
1233{
abe60632 1234 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1235 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1236 struct sta_info *sta;
1237 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1238 enum cfg80211_station_type statype;
35b88623 1239 int err;
4fd6931e 1240
87be1e1e 1241 mutex_lock(&local->sta_mtx);
98dd6a57 1242
0e5ded5a 1243 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1244 if (!sta) {
77ee7c89
JB		 1245 err = -ENOENT;
1246 goto out_err;
98dd6a57 1247 }
4fd6931e 1248
77ee7c89
JB		 1249 switch (sdata->vif.type) {
1250 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1251 if (sdata->u.mesh.user_mpm)
eef941e6 1252 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1253 else
eef941e6 1254 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1255 break;
1256 case NL80211_IFTYPE_ADHOC:
1257 statype = CFG80211_STA_IBSS;
1258 break;
1259 case NL80211_IFTYPE_STATION:
1260 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1261 statype = CFG80211_STA_AP_STA;
1262 break;
1263 }
1264 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1265 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1266 else
1267 statype = CFG80211_STA_TDLS_PEER_SETUP;
1268 break;
1269 case NL80211_IFTYPE_AP:
1270 case NL80211_IFTYPE_AP_VLAN:
1271 statype = CFG80211_STA_AP_CLIENT;
1272 break;
1273 default:
1274 err = -EOPNOTSUPP;
1275 goto out_err;
bdd90d5e
JB		 1276 }
1277
77ee7c89
JB		 1278 err = cfg80211_check_station_change(wiphy, params, statype);
1279 if (err)
1280 goto out_err;
1281
d0709a65 1282 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1283 bool prev_4addr = false;
1284 bool new_4addr = false;
1285
4fd6931e
JB		 1286 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1287
9bc383de 1288 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1289 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1290 err = -EBUSY;
1291 goto out_err;
3305443c 1292 }
f14543ee 1293
cf778b00 1294 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c
FF		 1295 new_4addr = true;
1296 }
1297
1298 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1299 sta->sdata->u.vlan.sta) {
0c2bef46 1300 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1301 prev_4addr = true;
f14543ee
FF		 1302 }
1303
14db74bc 1304 sta->sdata = vlansdata;
7e3ed02c
FF		 1305
1306 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1307 prev_4addr != new_4addr) {
1308 if (new_4addr)
1309 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1310 else
1311 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1312 }
1313
4fd6931e
JB		 1314 ieee80211_send_layer2_update(sta);
1315 }
1316
35b88623 1317 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1318 if (err)
1319 goto out_err;
4fd6931e 1320
77ee7c89
JB		 1321 /* When peer becomes authorized, init rate control as well */
1322 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1323 test_sta_flag(sta, WLAN_STA_AUTHORIZED))
d64cf63e
AN		 1324 rate_control_rate_init(sta);
1325
87be1e1e 1326 mutex_unlock(&local->sta_mtx);
98dd6a57 1327
687da132
EG		 1328 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1329 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1330 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1331 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1332 sta_info_tx_streams(sta) != 1) {
1333 ht_dbg(sta->sdata,
1334 "%pM just authorized and MIMO capable - update SMPS\n",
1335 sta->sta.addr);
1336 ieee80211_send_smps_action(sta->sdata,
1337 sta->sdata->bss->req_smps,
1338 sta->sta.addr,
1339 sta->sdata->vif.bss_conf.bssid);
1340 }
1341
808118cb 1342 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1343 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
808118cb 1344 ieee80211_recalc_ps(local, -1);
ab095877
EP		 1345 ieee80211_recalc_ps_vif(sdata);
1346 }
77ee7c89 1347
4fd6931e 1348 return 0;
77ee7c89
JB		 1349out_err:
1350 mutex_unlock(&local->sta_mtx);
1351 return err;
4fd6931e
JB		 1352}
1353
c5dd9c2b
LCC		 1354#ifdef CONFIG_MAC80211_MESH
1355static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1356 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1357{
14db74bc 1358 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1359 struct mesh_path *mpath;
1360 struct sta_info *sta;
c5dd9c2b 1361
14db74bc
JB		 1362 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1363
d0709a65 1364 rcu_read_lock();
abe60632 1365 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1366 if (!sta) {
1367 rcu_read_unlock();
c5dd9c2b 1368 return -ENOENT;
d0709a65 1369 }
c5dd9c2b 1370
ae76eef0
BC		 1371 mpath = mesh_path_add(sdata, dst);
1372 if (IS_ERR(mpath)) {
d0709a65 1373 rcu_read_unlock();
ae76eef0 1374 return PTR_ERR(mpath);
d0709a65 1375 }
c5dd9c2b 1376
c5dd9c2b 1377 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1378
c5dd9c2b
LCC		 1379 rcu_read_unlock();
1380 return 0;
1381}
1382
1383static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1384 const u8 *dst)
c5dd9c2b 1385{
f698d856
JBG		 1386 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1387
c5dd9c2b 1388 if (dst)
bf7cd94d 1389 return mesh_path_del(sdata, dst);
c5dd9c2b 1390
ece1a2e7 1391 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1392 return 0;
1393}
1394
3b3a0162
JB		 1395static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1396 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1397{
14db74bc 1398 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1399 struct mesh_path *mpath;
1400 struct sta_info *sta;
1401
14db74bc
JB		 1402 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1403
d0709a65
JB		 1404 rcu_read_lock();
1405
abe60632 1406 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1407 if (!sta) {
1408 rcu_read_unlock();
c5dd9c2b 1409 return -ENOENT;
d0709a65 1410 }
c5dd9c2b 1411
bf7cd94d 1412 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1413 if (!mpath) {
1414 rcu_read_unlock();
c5dd9c2b
LCC		 1415 return -ENOENT;
1416 }
1417
1418 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1419
c5dd9c2b
LCC		 1420 rcu_read_unlock();
1421 return 0;
1422}
1423
1424static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1425 struct mpath_info *pinfo)
1426{
a3836e02
JB		 1427 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1428
1429 if (next_hop_sta)
1430 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1431 else
1432 memset(next_hop, 0, ETH_ALEN);
1433
7ce8c7a3
LAYS		 1434 memset(pinfo, 0, sizeof(*pinfo));
1435
f5ea9120
JB		 1436 pinfo->generation = mesh_paths_generation;
1437
c5dd9c2b 1438 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1439 MPATH_INFO_SN |
c5dd9c2b
LCC		 1440 MPATH_INFO_METRIC |
1441 MPATH_INFO_EXPTIME |
1442 MPATH_INFO_DISCOVERY_TIMEOUT |
1443 MPATH_INFO_DISCOVERY_RETRIES |
1444 MPATH_INFO_FLAGS;
1445
1446 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1447 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1448 pinfo->metric = mpath->metric;
1449 if (time_before(jiffies, mpath->exp_time))
1450 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1451 pinfo->discovery_timeout =
1452 jiffies_to_msecs(mpath->discovery_timeout);
1453 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1454 if (mpath->flags & MESH_PATH_ACTIVE)
1455 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1456 if (mpath->flags & MESH_PATH_RESOLVING)
1457 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1458 if (mpath->flags & MESH_PATH_SN_VALID)
1459 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1460 if (mpath->flags & MESH_PATH_FIXED)
1461 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1462 if (mpath->flags & MESH_PATH_RESOLVED)
1463 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1464}
1465
1466static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1467 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1468
1469{
14db74bc 1470 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1471 struct mesh_path *mpath;
1472
14db74bc
JB		 1473 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1474
c5dd9c2b 1475 rcu_read_lock();
bf7cd94d 1476 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1477 if (!mpath) {
1478 rcu_read_unlock();
1479 return -ENOENT;
1480 }
1481 memcpy(dst, mpath->dst, ETH_ALEN);
1482 mpath_set_pinfo(mpath, next_hop, pinfo);
1483 rcu_read_unlock();
1484 return 0;
1485}
1486
1487static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1488 int idx, u8 *dst, u8 *next_hop,
1489 struct mpath_info *pinfo)
c5dd9c2b 1490{
14db74bc 1491 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1492 struct mesh_path *mpath;
1493
14db74bc
JB		 1494 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1495
c5dd9c2b 1496 rcu_read_lock();
bf7cd94d 1497 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1498 if (!mpath) {
1499 rcu_read_unlock();
1500 return -ENOENT;
1501 }
1502 memcpy(dst, mpath->dst, ETH_ALEN);
1503 mpath_set_pinfo(mpath, next_hop, pinfo);
1504 rcu_read_unlock();
1505 return 0;
1506}
93da9cc1 1507
24bdd9f4 1508static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1509 struct net_device *dev,
1510 struct mesh_config *conf)
1511{
1512 struct ieee80211_sub_if_data *sdata;
1513 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1514
93da9cc1 1515 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1516 return 0;
1517}
1518
1519static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1520{
1521 return (mask >> (parm-1)) & 0x1;
1522}
1523
c80d545d
JC		 1524static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1525 const struct mesh_setup *setup)
1526{
1527 u8 *new_ie;
1528 const u8 *old_ie;
4bb62344
CYY		 1529 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1530 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1531
581a8b0f 1532 /* allocate information elements */
c80d545d 1533 new_ie = NULL;
581a8b0f 1534 old_ie = ifmsh->ie;
c80d545d 1535
581a8b0f
JC		 1536 if (setup->ie_len) {
1537 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1538 GFP_KERNEL);
1539 if (!new_ie)
1540 return -ENOMEM;
1541 }
581a8b0f
JC		 1542 ifmsh->ie_len = setup->ie_len;
1543 ifmsh->ie = new_ie;
1544 kfree(old_ie);
c80d545d
JC		 1545
1546 /* now copy the rest of the setup parameters */
1547 ifmsh->mesh_id_len = setup->mesh_id_len;
1548 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1549 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1550 ifmsh->mesh_pp_id = setup->path_sel_proto;
1551 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1552 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1553 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1554 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1555 if (setup->is_authenticated)
1556 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1557 if (setup->is_secure)
1558 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1559
4bb62344
CYY		 1560 /* mcast rate setting in Mesh Node */
1561 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1562 sizeof(setup->mcast_rate));
ffb3cf30 1563 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1564
9bdbf04d
MP		 1565 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1566 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1567
c80d545d
JC		 1568 return 0;
1569}
1570
24bdd9f4 1571static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1572 struct net_device *dev, u32 mask,
1573 const struct mesh_config *nconf)
93da9cc1 1574{
1575 struct mesh_config *conf;
1576 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1577 struct ieee80211_if_mesh *ifmsh;
1578
93da9cc1 1579 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1580 ifmsh = &sdata->u.mesh;
93da9cc1 1581
93da9cc1 1582 /* Set the config options which we are interested in setting */
1583 conf = &(sdata->u.mesh.mshcfg);
1584 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1585 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1586 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1587 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1588 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1589 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1590 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1591 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1592 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1593 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1594 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1595 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1596 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1597 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1598 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1599 if (ifmsh->user_mpm)
1600 return -EBUSY;
93da9cc1 1601 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1602 }
d299a1f2
JC		 1603 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1604 conf->dot11MeshNbrOffsetMaxNeighbor =
1605 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1606 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1607 conf->dot11MeshHWMPmaxPREQretries =
1608 nconf->dot11MeshHWMPmaxPREQretries;
1609 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1610 conf->path_refresh_time = nconf->path_refresh_time;
1611 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1612 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1613 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1614 conf->dot11MeshHWMPactivePathTimeout =
1615 nconf->dot11MeshHWMPactivePathTimeout;
1616 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1617 conf->dot11MeshHWMPpreqMinInterval =
1618 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1619 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1620 conf->dot11MeshHWMPperrMinInterval =
1621 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1622 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1623 mask))
1624 conf->dot11MeshHWMPnetDiameterTraversalTime =
1625 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1626 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1627 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1628 ieee80211_mesh_root_setup(ifmsh);
1629 }
16dd7267 1630 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1631 /* our current gate announcement implementation rides on root
1632 * announcements, so require this ifmsh to also be a root node
1633 * */
1634 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1635 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1636 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1637 ieee80211_mesh_root_setup(ifmsh);
1638 }
16dd7267
JC		 1639 conf->dot11MeshGateAnnouncementProtocol =
1640 nconf->dot11MeshGateAnnouncementProtocol;
1641 }
a4f606ea 1642 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1643 conf->dot11MeshHWMPRannInterval =
1644 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1645 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1646 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1647 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1648 /* our RSSI threshold implementation is supported only for
1649 * devices that report signal in dBm.
1650 */
1651 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1652 return -ENOTSUPP;
1653 conf->rssi_threshold = nconf->rssi_threshold;
1654 }
70c33eaa
AN		 1655 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1656 conf->ht_opmode = nconf->ht_opmode;
1657 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1658 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1659 }
ac1073a6
CYY		 1660 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1661 conf->dot11MeshHWMPactivePathToRootTimeout =
1662 nconf->dot11MeshHWMPactivePathToRootTimeout;
1663 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1664 conf->dot11MeshHWMProotInterval =
1665 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1666 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1667 conf->dot11MeshHWMPconfirmationInterval =
1668 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1669 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1670 conf->power_mode = nconf->power_mode;
1671 ieee80211_mps_local_status_update(sdata);
1672 }
2b5e1967 1673 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1674 conf->dot11MeshAwakeWindowDuration =
1675 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1676 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1677 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1678 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1679 return 0;
1680}
1681
29cbe68c
JB		 1682static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1683 const struct mesh_config *conf,
1684 const struct mesh_setup *setup)
1685{
1686 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1687 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1688 int err;
29cbe68c 1689
c80d545d
JC		 1690 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1691 err = copy_mesh_setup(ifmsh, setup);
1692 if (err)
1693 return err;
cc1d2806 1694
04ecd257
JB		 1695 /* can mesh use other SMPS modes? */
1696 sdata->smps_mode = IEEE80211_SMPS_OFF;
1697 sdata->needed_rx_chains = sdata->local->rx_chains;
1698
34a3740d 1699 mutex_lock(&sdata->local->mtx);
4bf88530 1700 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1701 IEEE80211_CHANCTX_SHARED);
34a3740d 1702 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1703 if (err)
1704 return err;
1705
2b5e1967 1706 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1707}
1708
1709static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1710{
1711 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1712
1713 ieee80211_stop_mesh(sdata);
34a3740d 1714 mutex_lock(&sdata->local->mtx);
55de908a 1715 ieee80211_vif_release_channel(sdata);
34a3740d 1716 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1717
1718 return 0;
1719}
c5dd9c2b
LCC		 1720#endif
1721
9f1ba906
JM		 1722static int ieee80211_change_bss(struct wiphy *wiphy,
1723 struct net_device *dev,
1724 struct bss_parameters *params)
1725{
55de908a
JB		 1726 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1727 enum ieee80211_band band;
9f1ba906
JM		 1728 u32 changed = 0;
1729
7ca133bc 1730 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1731 return -ENOENT;
1732
1733 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1734
9f1ba906 1735 if (params->use_cts_prot >= 0) {
bda3933a 1736 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1737 changed |= BSS_CHANGED_ERP_CTS_PROT;
1738 }
1739 if (params->use_short_preamble >= 0) {
bda3933a 1740 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1741 params->use_short_preamble;
1742 changed |= BSS_CHANGED_ERP_PREAMBLE;
1743 }
43d35343
FF		 1744
1745 if (!sdata->vif.bss_conf.use_short_slot &&
55de908a 1746 band == IEEE80211_BAND_5GHZ) {
43d35343
FF		 1747 sdata->vif.bss_conf.use_short_slot = true;
1748 changed |= BSS_CHANGED_ERP_SLOT;
1749 }
1750
9f1ba906 1751 if (params->use_short_slot_time >= 0) {
bda3933a 1752 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1753 params->use_short_slot_time;
1754 changed |= BSS_CHANGED_ERP_SLOT;
1755 }
1756
90c97a04 1757 if (params->basic_rates) {
2103dec1
SW		 1758 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1759 wiphy->bands[band],
1760 params->basic_rates,
1761 params->basic_rates_len,
1762 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1763 changed |= BSS_CHANGED_BASIC_RATES;
1764 }
1765
7b7b5e56
FF		 1766 if (params->ap_isolate >= 0) {
1767 if (params->ap_isolate)
1768 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1769 else
1770 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1771 }
1772
80d7e403
HS		 1773 if (params->ht_opmode >= 0) {
1774 sdata->vif.bss_conf.ht_operation_mode =
1775 (u16) params->ht_opmode;
1776 changed |= BSS_CHANGED_HT;
1777 }
1778
339afbf4 1779 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1780 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1781 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1782 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1783 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1784 changed |= BSS_CHANGED_P2P_PS;
1785 }
1786
67baf663
JD		 1787 if (params->p2p_opp_ps > 0) {
1788 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1789 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1790 changed |= BSS_CHANGED_P2P_PS;
1791 } else if (params->p2p_opp_ps == 0) {
1792 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1793 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1794 changed |= BSS_CHANGED_P2P_PS;
1795 }
1796
9f1ba906
JM		 1797 ieee80211_bss_info_change_notify(sdata, changed);
1798
1799 return 0;
1800}
1801
31888487 1802static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1803 struct net_device *dev,
31888487
JM		 1804 struct ieee80211_txq_params *params)
1805{
1806 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1807 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1808 struct ieee80211_tx_queue_params p;
1809
1810 if (!local->ops->conf_tx)
1811 return -EOPNOTSUPP;
1812
54bcbc69
JB		 1813 if (local->hw.queues < IEEE80211_NUM_ACS)
1814 return -EOPNOTSUPP;
1815
31888487
JM		 1816 memset(&p, 0, sizeof(p));
1817 p.aifs = params->aifs;
1818 p.cw_max = params->cwmax;
1819 p.cw_min = params->cwmin;
1820 p.txop = params->txop;
ab13315a
KV		 1821
1822 /*
1823 * Setting tx queue params disables u-apsd because it's only
1824 * called in master mode.
1825 */
1826 p.uapsd = false;
1827
a3304b0a
JB		 1828 sdata->tx_conf[params->ac] = p;
1829 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1830 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1831 "failed to set TX queue parameters for AC %d\n",
1832 params->ac);
31888487
JM		 1833 return -EINVAL;
1834 }
1835
7d25745d
JB		 1836 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1837
31888487
JM		 1838 return 0;
1839}
1840
665af4fc 1841#ifdef CONFIG_PM
ff1b6e69
JB		 1842static int ieee80211_suspend(struct wiphy *wiphy,
1843 struct cfg80211_wowlan *wowlan)
665af4fc 1844{
eecc4800 1845 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1846}
1847
1848static int ieee80211_resume(struct wiphy *wiphy)
1849{
1850 return __ieee80211_resume(wiphy_priv(wiphy));
1851}
1852#else
1853#define ieee80211_suspend NULL
1854#define ieee80211_resume NULL
1855#endif
1856
2a519311 1857static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1858 struct cfg80211_scan_request *req)
1859{
fd014284
JB		 1860 struct ieee80211_sub_if_data *sdata;
1861
1862 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1863
2ca27bcf
JB		 1864 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1865 case NL80211_IFTYPE_STATION:
1866 case NL80211_IFTYPE_ADHOC:
1867 case NL80211_IFTYPE_MESH_POINT:
1868 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1869 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1870 break;
1871 case NL80211_IFTYPE_P2P_GO:
1872 if (sdata->local->ops->hw_scan)
1873 break;
e9d7732e
JB		 1874 /*
1875 * FIXME: implement NoA while scanning in software,
1876 * for now fall through to allow scanning only when
1877 * beaconing hasn't been configured yet
1878 */
2ca27bcf 1879 case NL80211_IFTYPE_AP:
5c95b940
AQ		 1880 /*
1881 * If the scan has been forced (and the driver supports
1882 * forcing), don't care about being beaconing already.
1883 * This will create problems to the attached stations (e.g. all
1884 * the frames sent while scanning on other channel will be
1885 * lost)
1886 */
1887 if (sdata->u.ap.beacon &&
1888 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1889 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 1890 return -EOPNOTSUPP;
1891 break;
1892 default:
1893 return -EOPNOTSUPP;
1894 }
2a519311
JB		 1895
1896 return ieee80211_request_scan(sdata, req);
1897}
1898
79f460ca
LC		 1899static int
1900ieee80211_sched_scan_start(struct wiphy *wiphy,
1901 struct net_device *dev,
1902 struct cfg80211_sched_scan_request *req)
1903{
1904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1905
1906 if (!sdata->local->ops->sched_scan_start)
1907 return -EOPNOTSUPP;
1908
1909 return ieee80211_request_sched_scan_start(sdata, req);
1910}
1911
1912static int
85a9994a 1913ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1914{
1915 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1916
1917 if (!sdata->local->ops->sched_scan_stop)
1918 return -EOPNOTSUPP;
1919
85a9994a 1920 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1921}
1922
636a5d36
JM		 1923static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1924 struct cfg80211_auth_request *req)
1925{
77fdaa12 1926 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1927}
1928
1929static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1930 struct cfg80211_assoc_request *req)
1931{
77fdaa12 1932 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1933}
1934
1935static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1936 struct cfg80211_deauth_request *req)
636a5d36 1937{
63c9c5e7 1938 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1939}
1940
1941static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 1942 struct cfg80211_disassoc_request *req)
636a5d36 1943{
63c9c5e7 1944 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1945}
1946
af8cdcd8
JB		 1947static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1948 struct cfg80211_ibss_params *params)
1949{
55de908a 1950 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 1951}
1952
1953static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1954{
55de908a 1955 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 1956}
1957
391e53e3
AQ		 1958static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1959 int rate[IEEE80211_NUM_BANDS])
1960{
1961 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1962
9887dbf5
CD		 1963 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
1964 sizeof(int) * IEEE80211_NUM_BANDS);
391e53e3
AQ		 1965
1966 return 0;
1967}
1968
b9a5f8ca
JM		 1969static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1970{
1971 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1972 int err;
b9a5f8ca 1973
f23a4780
AN		 1974 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1975 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1976
1977 if (err)
1978 return err;
1979 }
1980
a4bcaf55
LB		 1981 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
1982 (changed & WIPHY_PARAM_DYN_ACK)) {
1983 s16 coverage_class;
1984
1985 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
1986 wiphy->coverage_class : -1;
1987 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 1988
1989 if (err)
1990 return err;
1991 }
1992
b9a5f8ca 1993 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1994 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1995
24487981
JB		 1996 if (err)
1997 return err;
b9a5f8ca
JM		 1998 }
1999
8bc83c24
JB		 2000 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2001 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2002 return -EINVAL;
b9a5f8ca 2003 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2004 }
2005 if (changed & WIPHY_PARAM_RETRY_LONG) {
2006 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2007 return -EINVAL;
b9a5f8ca 2008 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2009 }
b9a5f8ca
JM		 2010 if (changed &
2011 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2012 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2013
2014 return 0;
2015}
2016
7643a2c3 2017static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2018 struct wireless_dev *wdev,
fa61cf70 2019 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2020{
2021 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2022 struct ieee80211_sub_if_data *sdata;
7643a2c3 2023
1ea6f9c0
JB		 2024 if (wdev) {
2025 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2026
2027 switch (type) {
2028 case NL80211_TX_POWER_AUTOMATIC:
2029 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2030 break;
2031 case NL80211_TX_POWER_LIMITED:
2032 case NL80211_TX_POWER_FIXED:
2033 if (mbm < 0 || (mbm % 100))
2034 return -EOPNOTSUPP;
2035 sdata->user_power_level = MBM_TO_DBM(mbm);
2036 break;
2037 }
2038
2039 ieee80211_recalc_txpower(sdata);
2040
2041 return 0;
2042 }
55de908a 2043
7643a2c3 2044 switch (type) {
fa61cf70 2045 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2046 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
7643a2c3 2047 break;
fa61cf70 2048 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2049 case NL80211_TX_POWER_FIXED:
2050 if (mbm < 0 || (mbm % 100))
2051 return -EOPNOTSUPP;
fa61cf70 2052 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2053 break;
7643a2c3
JB		 2054 }
2055
1ea6f9c0
JB		 2056 mutex_lock(&local->iflist_mtx);
2057 list_for_each_entry(sdata, &local->interfaces, list)
2058 sdata->user_power_level = local->user_power_level;
2059 list_for_each_entry(sdata, &local->interfaces, list)
2060 ieee80211_recalc_txpower(sdata);
2061 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2062
2063 return 0;
2064}
2065
c8442118
JB		 2066static int ieee80211_get_tx_power(struct wiphy *wiphy,
2067 struct wireless_dev *wdev,
2068 int *dbm)
7643a2c3
JB		 2069{
2070 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2071 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2072
1ea6f9c0
JB		 2073 if (!local->use_chanctx)
2074 *dbm = local->hw.conf.power_level;
2075 else
2076 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2077
7643a2c3
JB		 2078 return 0;
2079}
2080
ab737a4f 2081static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2082 const u8 *addr)
ab737a4f
JB		 2083{
2084 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2085
2086 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2087
2088 return 0;
2089}
2090
1f87f7d3
JB		 2091static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2092{
2093 struct ieee80211_local *local = wiphy_priv(wiphy);
2094
2095 drv_rfkill_poll(local);
2096}
2097
aff89a9b 2098#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2099static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2100 struct wireless_dev *wdev,
2101 void *data, int len)
aff89a9b
JB		 2102{
2103 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2104 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2105
2106 if (!local->ops->testmode_cmd)
2107 return -EOPNOTSUPP;
2108
52981cd7
DS		 2109 if (wdev) {
2110 struct ieee80211_sub_if_data *sdata;
2111
2112 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2113 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2114 vif = &sdata->vif;
2115 }
2116
2117 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2118}
71063f0e
WYG		 2119
2120static int ieee80211_testmode_dump(struct wiphy *wiphy,
2121 struct sk_buff *skb,
2122 struct netlink_callback *cb,
2123 void *data, int len)
2124{
2125 struct ieee80211_local *local = wiphy_priv(wiphy);
2126
2127 if (!local->ops->testmode_dump)
2128 return -EOPNOTSUPP;
2129
2130 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2131}
aff89a9b
JB		 2132#endif
2133
687da132
EG		 2134int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2135 enum ieee80211_smps_mode smps_mode)
2136{
2137 struct sta_info *sta;
2138 enum ieee80211_smps_mode old_req;
2139 int i;
2140
2141 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2142 return -EINVAL;
2143
2144 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2145 return 0;
2146
2147 old_req = sdata->u.ap.req_smps;
2148 sdata->u.ap.req_smps = smps_mode;
2149
2150 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2151 if (old_req == smps_mode ||
2152 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2153 return 0;
2154
2155 /* If no associated stations, there's no need to do anything */
2156 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2157 sdata->smps_mode = smps_mode;
2158 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2159 return 0;
2160 }
2161
2162 ht_dbg(sdata,
2163 "SMSP %d requested in AP mode, sending Action frame to %d stations\n",
2164 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2165
2166 mutex_lock(&sdata->local->sta_mtx);
2167 for (i = 0; i < STA_HASH_SIZE; i++) {
2168 for (sta = rcu_dereference_protected(sdata->local->sta_hash[i],
2169 lockdep_is_held(&sdata->local->sta_mtx));
2170 sta;
2171 sta = rcu_dereference_protected(sta->hnext,
2172 lockdep_is_held(&sdata->local->sta_mtx))) {
2173 /*
2174 * Only stations associated to our AP and
2175 * associated VLANs
2176 */
2177 if (sta->sdata->bss != &sdata->u.ap)
2178 continue;
2179
2180 /* This station doesn't support MIMO - skip it */
2181 if (sta_info_tx_streams(sta) == 1)
2182 continue;
2183
2184 /*
2185 * Don't wake up a STA just to send the action frame
2186 * unless we are getting more restrictive.
2187 */
2188 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2189 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2190 smps_mode)) {
2191 ht_dbg(sdata,
2192 "Won't send SMPS to sleeping STA %pM\n",
2193 sta->sta.addr);
2194 continue;
2195 }
2196
2197 /*
2198 * If the STA is not authorized, wait until it gets
2199 * authorized and the action frame will be sent then.
2200 */
2201 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2202 continue;
2203
2204 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2205 ieee80211_send_smps_action(sdata, smps_mode,
2206 sta->sta.addr,
2207 sdata->vif.bss_conf.bssid);
2208 }
2209 }
2210 mutex_unlock(&sdata->local->sta_mtx);
2211
2212 sdata->smps_mode = smps_mode;
2213 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2214
2215 return 0;
2216}
2217
2218int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2219 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2220{
2221 const u8 *ap;
2222 enum ieee80211_smps_mode old_req;
2223 int err;
2224
8d61ffa5 2225 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2226
687da132
EG		 2227 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2228 return -EINVAL;
2229
0f78231b
JB		 2230 old_req = sdata->u.mgd.req_smps;
2231 sdata->u.mgd.req_smps = smps_mode;
2232
2233 if (old_req == smps_mode &&
2234 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2235 return 0;
2236
2237 /*
2238 * If not associated, or current association is not an HT
04ecd257
JB		 2239 * association, there's no need to do anything, just store
2240 * the new value until we associate.
0f78231b
JB		 2241 */
2242 if (!sdata->u.mgd.associated ||
4bf88530 2243 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2244 return 0;
0f78231b 2245
0c1ad2ca 2246 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 2247
2248 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2249 if (sdata->u.mgd.powersave)
2250 smps_mode = IEEE80211_SMPS_DYNAMIC;
2251 else
2252 smps_mode = IEEE80211_SMPS_OFF;
2253 }
2254
2255 /* send SM PS frame to AP */
2256 err = ieee80211_send_smps_action(sdata, smps_mode,
2257 ap, ap);
2258 if (err)
2259 sdata->u.mgd.req_smps = old_req;
2260
2261 return err;
2262}
2263
bc92afd9
JB		 2264static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2265 bool enabled, int timeout)
2266{
2267 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2268 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2269
2d3db210 2270 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2271 return -EOPNOTSUPP;
2272
bc92afd9
JB		 2273 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2274 return -EOPNOTSUPP;
2275
2276 if (enabled == sdata->u.mgd.powersave &&
ff616381 2277 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2278 return 0;
2279
2280 sdata->u.mgd.powersave = enabled;
ff616381 2281 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2282
0f78231b 2283 /* no change, but if automatic follow powersave */
ed405be5 2284 sdata_lock(sdata);
687da132 2285 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2286 sdata_unlock(sdata);
0f78231b 2287
bc92afd9
JB		 2288 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2289 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2290
2291 ieee80211_recalc_ps(local, -1);
ab095877 2292 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2293
2294 return 0;
2295}
2296
a97c13c3
JO		 2297static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2298 struct net_device *dev,
2299 s32 rssi_thold, u32 rssi_hyst)
2300{
2301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2302 struct ieee80211_vif *vif = &sdata->vif;
2303 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2304
a97c13c3
JO		 2305 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2306 rssi_hyst == bss_conf->cqm_rssi_hyst)
2307 return 0;
2308
2309 bss_conf->cqm_rssi_thold = rssi_thold;
2310 bss_conf->cqm_rssi_hyst = rssi_hyst;
2311
2312 /* tell the driver upon association, unless already associated */
ea086359
JB		 2313 if (sdata->u.mgd.associated &&
2314 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2315 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2316
2317 return 0;
2318}
2319
9930380f
JB		 2320static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2321 struct net_device *dev,
2322 const u8 *addr,
2323 const struct cfg80211_bitrate_mask *mask)
2324{
2325 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2326 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2327 int i, ret;
2c7e6bc9 2328
554a43d5
EP		 2329 if (!ieee80211_sdata_running(sdata))
2330 return -ENETDOWN;
2331
bdbfd6b5
SM		 2332 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2333 ret = drv_set_bitrate_mask(local, sdata, mask);
2334 if (ret)
2335 return ret;
2336 }
9930380f 2337
19468413 2338 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2ffbe6d3
FF		 2339 struct ieee80211_supported_band *sband = wiphy->bands[i];
2340 int j;
2341
37eb0b16 2342 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2343 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2344 sizeof(mask->control[i].ht_mcs));
2ffbe6d3
FF		 2345
2346 sdata->rc_has_mcs_mask[i] = false;
2347 if (!sband)
2348 continue;
2349
2350 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++)
2351 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2352 sdata->rc_has_mcs_mask[i] = true;
2353 break;
2354 }
19468413 2355 }
9930380f 2356
37eb0b16 2357 return 0;
9930380f
JB		 2358}
2359
eaa336b0
EP		 2360static bool ieee80211_coalesce_started_roc(struct ieee80211_local *local,
2361 struct ieee80211_roc_work *new_roc,
2362 struct ieee80211_roc_work *cur_roc)
2363{
2364 unsigned long j = jiffies;
2365 unsigned long cur_roc_end = cur_roc->hw_start_time +
2366 msecs_to_jiffies(cur_roc->duration);
2367 struct ieee80211_roc_work *next_roc;
2368 int new_dur;
2369
2370 if (WARN_ON(!cur_roc->started || !cur_roc->hw_begun))
2371 return false;
2372
2373 if (time_after(j + IEEE80211_ROC_MIN_LEFT, cur_roc_end))
2374 return false;
2375
2376 ieee80211_handle_roc_started(new_roc);
2377
2378 new_dur = new_roc->duration - jiffies_to_msecs(cur_roc_end - j);
2379
2380 /* cur_roc is long enough - add new_roc to the dependents list. */
2381 if (new_dur <= 0) {
2382 list_add_tail(&new_roc->list, &cur_roc->dependents);
2383 return true;
2384 }
2385
2386 new_roc->duration = new_dur;
2387
2388 /*
2389 * if cur_roc was already coalesced before, we might
2390 * want to extend the next roc instead of adding
2391 * a new one.
2392 */
2393 next_roc = list_entry(cur_roc->list.next,
2394 struct ieee80211_roc_work, list);
2395 if (&next_roc->list != &local->roc_list &&
2396 next_roc->chan == new_roc->chan &&
2397 next_roc->sdata == new_roc->sdata &&
2398 !WARN_ON(next_roc->started)) {
2399 list_add_tail(&new_roc->list, &next_roc->dependents);
2400 next_roc->duration = max(next_roc->duration,
2401 new_roc->duration);
2402 next_roc->type = max(next_roc->type, new_roc->type);
2403 return true;
2404 }
2405
2406 /* add right after cur_roc */
2407 list_add(&new_roc->list, &cur_roc->list);
2408
2409 return true;
2410}
2411
2eb278e0
JB		 2412static int ieee80211_start_roc_work(struct ieee80211_local *local,
2413 struct ieee80211_sub_if_data *sdata,
2414 struct ieee80211_channel *channel,
2eb278e0 2415 unsigned int duration, u64 *cookie,
d339d5ca
IP		 2416 struct sk_buff *txskb,
2417 enum ieee80211_roc_type type)
2eb278e0
JB		 2418{
2419 struct ieee80211_roc_work *roc, *tmp;
2420 bool queued = false;
21f83589 2421 int ret;
21f83589
JB		 2422
2423 lockdep_assert_held(&local->mtx);
2424
fe57d9f5
JB		 2425 if (local->use_chanctx && !local->ops->remain_on_channel)
2426 return -EOPNOTSUPP;
2427
2eb278e0
JB		 2428 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2429 if (!roc)
2430 return -ENOMEM;
2431
2fae062e
IP		 2432 /*
2433 * If the duration is zero, then the driver
2434 * wouldn't actually do anything. Set it to
2435 * 10 for now.
2436 *
2437 * TODO: cancel the off-channel operation
2438 * when we get the SKB's TX status and
2439 * the wait time was zero before.
2440 */
2441 if (!duration)
2442 duration = 10;
2443
2eb278e0 2444 roc->chan = channel;
2eb278e0
JB		 2445 roc->duration = duration;
2446 roc->req_duration = duration;
2447 roc->frame = txskb;
d339d5ca 2448 roc->type = type;
2eb278e0
JB		 2449 roc->mgmt_tx_cookie = (unsigned long)txskb;
2450 roc->sdata = sdata;
2451 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2452 INIT_LIST_HEAD(&roc->dependents);
2453
2f617435
EP		 2454 /*
2455 * cookie is either the roc cookie (for normal roc)
2456 * or the SKB (for mgmt TX)
2457 */
2458 if (!txskb) {
2459 /* local->mtx protects this */
2460 local->roc_cookie_counter++;
2461 roc->cookie = local->roc_cookie_counter;
2462 /* wow, you wrapped 64 bits ... more likely a bug */
2463 if (WARN_ON(roc->cookie == 0)) {
2464 roc->cookie = 1;
2465 local->roc_cookie_counter++;
2466 }
2467 *cookie = roc->cookie;
2468 } else {
2469 *cookie = (unsigned long)txskb;
2470 }
2471
2eb278e0 2472 /* if there's one pending or we're scanning, queue this one */
164eb02d
SW		 2473 if (!list_empty(&local->roc_list) ||
2474 local->scanning || local->radar_detect_enabled)
2eb278e0
JB		 2475 goto out_check_combine;
2476
2477 /* if not HW assist, just queue & schedule work */
2478 if (!local->ops->remain_on_channel) {
2479 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2480 goto out_queue;
2481 }
2482
2483 /* otherwise actually kick it off here (for error handling) */
2484
d339d5ca 2485 ret = drv_remain_on_channel(local, sdata, channel, duration, type);
21f83589 2486 if (ret) {
2eb278e0
JB		 2487 kfree(roc);
2488 return ret;
21f83589
JB		 2489 }
2490
2eb278e0
JB		 2491 roc->started = true;
2492 goto out_queue;
2493
2494 out_check_combine:
2495 list_for_each_entry(tmp, &local->roc_list, list) {
42d97a59 2496 if (tmp->chan != channel || tmp->sdata != sdata)
2eb278e0
JB		 2497 continue;
2498
2499 /*
2500 * Extend this ROC if possible:
2501 *
2502 * If it hasn't started yet, just increase the duration
2503 * and add the new one to the list of dependents.
d339d5ca
IP		 2504 * If the type of the new ROC has higher priority, modify the
2505 * type of the previous one to match that of the new one.
2eb278e0
JB		 2506 */
2507 if (!tmp->started) {
2508 list_add_tail(&roc->list, &tmp->dependents);
2509 tmp->duration = max(tmp->duration, roc->duration);
d339d5ca 2510 tmp->type = max(tmp->type, roc->type);
2eb278e0
JB		 2511 queued = true;
2512 break;
2513 }
2514
2515 /* If it has already started, it's more difficult ... */
2516 if (local->ops->remain_on_channel) {
2eb278e0
JB		 2517 /*
2518 * In the offloaded ROC case, if it hasn't begun, add
2519 * this new one to the dependent list to be handled
d339d5ca 2520 * when the master one begins. If it has begun,
2eb278e0
JB		 2521 * check that there's still a minimum time left and
2522 * if so, start this one, transmitting the frame, but
d339d5ca 2523 * add it to the list directly after this one with
2eb278e0
JB		 2524 * a reduced time so we'll ask the driver to execute
2525 * it right after finishing the previous one, in the
2526 * hope that it'll also be executed right afterwards,
2527 * effectively extending the old one.
2528 * If there's no minimum time left, just add it to the
2529 * normal list.
d339d5ca
IP		 2530 * TODO: the ROC type is ignored here, assuming that it
2531 * is better to immediately use the current ROC.
2eb278e0
JB		 2532 */
2533 if (!tmp->hw_begun) {
2534 list_add_tail(&roc->list, &tmp->dependents);
2535 queued = true;
2536 break;
2537 }
2538
eaa336b0 2539 if (ieee80211_coalesce_started_roc(local, roc, tmp))
2eb278e0 2540 queued = true;
2eb278e0
JB		 2541 } else if (del_timer_sync(&tmp->work.timer)) {
2542 unsigned long new_end;
2543
2544 /*
2545 * In the software ROC case, cancel the timer, if
2546 * that fails then the finish work is already
2547 * queued/pending and thus we queue the new ROC
2548 * normally, if that succeeds then we can extend
2549 * the timer duration and TX the frame (if any.)
2550 */
2551
2552 list_add_tail(&roc->list, &tmp->dependents);
2553 queued = true;
2554
2555 new_end = jiffies + msecs_to_jiffies(roc->duration);
2556
2557 /* ok, it was started & we canceled timer */
2558 if (time_after(new_end, tmp->work.timer.expires))
2559 mod_timer(&tmp->work.timer, new_end);
2560 else
2561 add_timer(&tmp->work.timer);
2562
2563 ieee80211_handle_roc_started(roc);
2564 }
2565 break;
2566 }
2567
2568 out_queue:
2569 if (!queued)
2570 list_add_tail(&roc->list, &local->roc_list);
2571
2eb278e0 2572 return 0;
21f83589
JB		 2573}
2574
b8bc4b0a 2575static int ieee80211_remain_on_channel(struct wiphy *wiphy,
71bbc994 2576 struct wireless_dev *wdev,
b8bc4b0a 2577 struct ieee80211_channel *chan,
b8bc4b0a
JB		 2578 unsigned int duration,
2579 u64 *cookie)
2580{
71bbc994 2581 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
21f83589 2582 struct ieee80211_local *local = sdata->local;
2eb278e0 2583 int ret;
21f83589 2584
2eb278e0 2585 mutex_lock(&local->mtx);
42d97a59 2586 ret = ieee80211_start_roc_work(local, sdata, chan,
d339d5ca
IP		 2587 duration, cookie, NULL,
2588 IEEE80211_ROC_TYPE_NORMAL);
2eb278e0 2589 mutex_unlock(&local->mtx);
b8bc4b0a 2590
2eb278e0 2591 return ret;
b8bc4b0a
JB		 2592}
2593
2eb278e0
JB		 2594static int ieee80211_cancel_roc(struct ieee80211_local *local,
2595 u64 cookie, bool mgmt_tx)
21f83589 2596{
2eb278e0 2597 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
21f83589
JB		 2598 int ret;
2599
2eb278e0
JB		 2600 mutex_lock(&local->mtx);
2601 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
e979e33c
JB		 2602 struct ieee80211_roc_work *dep, *tmp2;
2603
2604 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
50febf6a 2605 if (!mgmt_tx && dep->cookie != cookie)
e979e33c
JB		 2606 continue;
2607 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2608 continue;
2609 /* found dependent item -- just remove it */
2610 list_del(&dep->list);
2611 mutex_unlock(&local->mtx);
2612
3fbd45ca 2613 ieee80211_roc_notify_destroy(dep, true);
e979e33c
JB		 2614 return 0;
2615 }
2616
50febf6a 2617 if (!mgmt_tx && roc->cookie != cookie)
2eb278e0
JB		 2618 continue;
2619 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2620 continue;
21f83589 2621
2eb278e0
JB		 2622 found = roc;
2623 break;
2624 }
21f83589 2625
2eb278e0
JB		 2626 if (!found) {
2627 mutex_unlock(&local->mtx);
2628 return -ENOENT;
2629 }
21f83589 2630
e979e33c
JB		 2631 /*
2632 * We found the item to cancel, so do that. Note that it
2633 * may have dependents, which we also cancel (and send
2634 * the expired signal for.) Not doing so would be quite
2635 * tricky here, but we may need to fix it later.
2636 */
2637
2eb278e0
JB		 2638 if (local->ops->remain_on_channel) {
2639 if (found->started) {
2640 ret = drv_cancel_remain_on_channel(local);
2641 if (WARN_ON_ONCE(ret)) {
2642 mutex_unlock(&local->mtx);
2643 return ret;
2644 }
2645 }
21f83589 2646
2eb278e0 2647 list_del(&found->list);
21f83589 2648
0f6b3f59
JB		 2649 if (found->started)
2650 ieee80211_start_next_roc(local);
2eb278e0 2651 mutex_unlock(&local->mtx);
21f83589 2652
3fbd45ca 2653 ieee80211_roc_notify_destroy(found, true);
2eb278e0
JB		 2654 } else {
2655 /* work may be pending so use it all the time */
2656 found->abort = true;
2657 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
21f83589 2658
21f83589
JB		 2659 mutex_unlock(&local->mtx);
2660
2eb278e0
JB		 2661 /* work will clean up etc */
2662 flush_delayed_work(&found->work);
3fbd45ca
JB		 2663 WARN_ON(!found->to_be_freed);
2664 kfree(found);
21f83589 2665 }
b8bc4b0a 2666
2eb278e0 2667 return 0;
b8bc4b0a
JB		 2668}
2669
2eb278e0 2670static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
71bbc994 2671 struct wireless_dev *wdev,
2eb278e0 2672 u64 cookie)
f30221e4 2673{
71bbc994 2674 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2eb278e0 2675 struct ieee80211_local *local = sdata->local;
f30221e4 2676
2eb278e0 2677 return ieee80211_cancel_roc(local, cookie, false);
f30221e4
JB		 2678}
2679
164eb02d
SW		 2680static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2681 struct net_device *dev,
31559f35
JD		 2682 struct cfg80211_chan_def *chandef,
2683 u32 cac_time_ms)
164eb02d
SW		 2684{
2685 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2686 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2687 int err;
2688
34a3740d
JB		 2689 mutex_lock(&local->mtx);
2690 if (!list_empty(&local->roc_list) || local->scanning) {
2691 err = -EBUSY;
2692 goto out_unlock;
2693 }
164eb02d
SW		 2694
2695 /* whatever, but channel contexts should not complain about that one */
2696 sdata->smps_mode = IEEE80211_SMPS_OFF;
2697 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2698
164eb02d
SW		 2699 err = ieee80211_vif_use_channel(sdata, chandef,
2700 IEEE80211_CHANCTX_SHARED);
164eb02d 2701 if (err)
34a3740d 2702 goto out_unlock;
164eb02d 2703
164eb02d 2704 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2705 &sdata->dfs_cac_timer_work,
2706 msecs_to_jiffies(cac_time_ms));
164eb02d 2707
34a3740d
JB		 2708 out_unlock:
2709 mutex_unlock(&local->mtx);
2710 return err;
164eb02d
SW		 2711}
2712
73da7d5b
SW		 2713static struct cfg80211_beacon_data *
2714cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2715{
2716 struct cfg80211_beacon_data *new_beacon;
2717 u8 *pos;
2718 int len;
2719
2720 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2721 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2722 beacon->probe_resp_len;
2723
2724 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2725 if (!new_beacon)
2726 return NULL;
2727
2728 pos = (u8 *)(new_beacon + 1);
2729 if (beacon->head_len) {
2730 new_beacon->head_len = beacon->head_len;
2731 new_beacon->head = pos;
2732 memcpy(pos, beacon->head, beacon->head_len);
2733 pos += beacon->head_len;
2734 }
2735 if (beacon->tail_len) {
2736 new_beacon->tail_len = beacon->tail_len;
2737 new_beacon->tail = pos;
2738 memcpy(pos, beacon->tail, beacon->tail_len);
2739 pos += beacon->tail_len;
2740 }
2741 if (beacon->beacon_ies_len) {
2742 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2743 new_beacon->beacon_ies = pos;
2744 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2745 pos += beacon->beacon_ies_len;
2746 }
2747 if (beacon->proberesp_ies_len) {
2748 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2749 new_beacon->proberesp_ies = pos;
2750 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2751 pos += beacon->proberesp_ies_len;
2752 }
2753 if (beacon->assocresp_ies_len) {
2754 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2755 new_beacon->assocresp_ies = pos;
2756 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2757 pos += beacon->assocresp_ies_len;
2758 }
2759 if (beacon->probe_resp_len) {
2760 new_beacon->probe_resp_len = beacon->probe_resp_len;
2761 beacon->probe_resp = pos;
2762 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2763 pos += beacon->probe_resp_len;
2764 }
2765
2766 return new_beacon;
2767}
2768
66e01cf9 2769void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2770{
66e01cf9 2771 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2772
66e01cf9
LC		 2773 ieee80211_queue_work(&sdata->local->hw,
2774 &sdata->csa_finalize_work);
2775}
2776EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2777
66199506
MK		 2778static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2779 u32 *changed)
66e01cf9 2780{
66199506 2781 int err;
7578d575 2782
cd7760e6
SW		 2783 switch (sdata->vif.type) {
2784 case NL80211_IFTYPE_AP:
af296bdb
MK		 2785 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2786 NULL);
97518af1
MK		 2787 kfree(sdata->u.ap.next_beacon);
2788 sdata->u.ap.next_beacon = NULL;
2789
cd7760e6 2790 if (err < 0)
66199506
MK		 2791 return err;
2792 *changed |= err;
cd7760e6
SW		 2793 break;
2794 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2795 err = ieee80211_ibss_finish_csa(sdata);
2796 if (err < 0)
66199506
MK		 2797 return err;
2798 *changed |= err;
cd7760e6 2799 break;
b8456a14
CYY		 2800#ifdef CONFIG_MAC80211_MESH
2801 case NL80211_IFTYPE_MESH_POINT:
2802 err = ieee80211_mesh_finish_csa(sdata);
2803 if (err < 0)
66199506
MK		 2804 return err;
2805 *changed |= err;
b8456a14
CYY		 2806 break;
2807#endif
cd7760e6
SW		 2808 default:
2809 WARN_ON(1);
66199506
MK		 2810 return -EINVAL;
2811 }
2812
2813 return 0;
2814}
2815
cf8767dd 2816static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2817{
2818 struct ieee80211_local *local = sdata->local;
2819 u32 changed = 0;
2820 int err;
2821
2822 sdata_assert_lock(sdata);
2823 lockdep_assert_held(&local->mtx);
03078de4 2824 lockdep_assert_held(&local->chanctx_mtx);
66199506 2825
03078de4
MK		 2826 /*
2827 * using reservation isn't immediate as it may be deferred until later
2828 * with multi-vif. once reservation is complete it will re-schedule the
2829 * work with no reserved_chanctx so verify chandef to check if it
2830 * completed successfully
2831 */
66199506 2832
03078de4
MK		 2833 if (sdata->reserved_chanctx) {
2834 /*
2835 * with multi-vif csa driver may call ieee80211_csa_finish()
2836 * many times while waiting for other interfaces to use their
2837 * reservations
2838 */
2839 if (sdata->reserved_ready)
2840 return 0;
2841
2842 err = ieee80211_vif_use_reserved_context(sdata);
2843 if (err)
2844 return err;
2845
2846 return 0;
cd7760e6 2847 }
73da7d5b 2848
03078de4
MK		 2849 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2850 &sdata->csa_chandef))
2851 return -EINVAL;
2852
66199506
MK		 2853 sdata->vif.csa_active = false;
2854
2855 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2856 if (err)
cf8767dd 2857 return err;
faf046e7 2858
66199506 2859 ieee80211_bss_info_change_notify(sdata, changed);
59af6928
MK		 2860 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2861
a46992b4
LC		 2862 if (sdata->csa_block_tx) {
2863 ieee80211_wake_vif_queues(local, sdata,
2864 IEEE80211_QUEUE_STOP_REASON_CSA);
2865 sdata->csa_block_tx = false;
2866 }
cf8767dd
MK		 2867
2868 return 0;
2869}
2870
2871static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2872{
2873 if (__ieee80211_csa_finalize(sdata)) {
2874 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2875 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2876 GFP_KERNEL);
2877 }
66e01cf9
LC		 2878}
2879
2880void ieee80211_csa_finalize_work(struct work_struct *work)
2881{
2882 struct ieee80211_sub_if_data *sdata =
2883 container_of(work, struct ieee80211_sub_if_data,
2884 csa_finalize_work);
59af6928 2885 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2886
2887 sdata_lock(sdata);
59af6928 2888 mutex_lock(&local->mtx);
03078de4 2889 mutex_lock(&local->chanctx_mtx);
59af6928 2890
66e01cf9
LC		 2891 /* AP might have been stopped while waiting for the lock. */
2892 if (!sdata->vif.csa_active)
2893 goto unlock;
2894
2895 if (!ieee80211_sdata_running(sdata))
2896 goto unlock;
2897
2898 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2899
2900unlock:
03078de4 2901 mutex_unlock(&local->chanctx_mtx);
59af6928 2902 mutex_unlock(&local->mtx);
e487eaeb 2903 sdata_unlock(sdata);
73da7d5b
SW		 2904}
2905
37fa2bdd
MK		 2906static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2907 struct cfg80211_csa_settings *params,
2908 u32 *changed)
73da7d5b 2909{
af296bdb 2910 struct ieee80211_csa_settings csa = {};
37fa2bdd 2911 int err;
73da7d5b 2912
73da7d5b
SW		 2913 switch (sdata->vif.type) {
2914 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2915 sdata->u.ap.next_beacon =
2916 cfg80211_beacon_dup(&params->beacon_after);
2917 if (!sdata->u.ap.next_beacon)
2918 return -ENOMEM;
2919
66e01cf9
LC		 2920 /*
2921 * With a count of 0, we don't have to wait for any
2922 * TBTT before switching, so complete the CSA
2923 * immediately. In theory, with a count == 1 we
2924 * should delay the switch until just before the next
2925 * TBTT, but that would complicate things so we switch
2926 * immediately too. If we would delay the switch
2927 * until the next TBTT, we would have to set the probe
2928 * response here.
2929 *
2930 * TODO: A channel switch with count <= 1 without
2931 * sending a CSA action frame is kind of useless,
2932 * because the clients won't know we're changing
2933 * channels. The action frame must be implemented
2934 * either here or in the userspace.
2935 */
2936 if (params->count <= 1)
2937 break;
2938
0d06d9ba
AO		 2939 if ((params->n_counter_offsets_beacon >
2940 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2941 (params->n_counter_offsets_presp >
2942 IEEE80211_MAX_CSA_COUNTERS_NUM))
2943 return -EINVAL;
9a774c78 2944
af296bdb
MK		 2945 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2946 csa.counter_offsets_presp = params->counter_offsets_presp;
2947 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2948 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2949 csa.count = params->count;
9a774c78 2950
af296bdb 2951 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2952 if (err < 0) {
2953 kfree(sdata->u.ap.next_beacon);
2954 return err;
2955 }
37fa2bdd 2956 *changed |= err;
66e01cf9 2957
cd7760e6
SW		 2958 break;
2959 case NL80211_IFTYPE_ADHOC:
2960 if (!sdata->vif.bss_conf.ibss_joined)
2961 return -EINVAL;
2962
2963 if (params->chandef.width != sdata->u.ibss.chandef.width)
2964 return -EINVAL;
2965
2966 switch (params->chandef.width) {
2967 case NL80211_CHAN_WIDTH_40:
2968 if (cfg80211_get_chandef_type(&params->chandef) !=
2969 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2970 return -EINVAL;
2971 case NL80211_CHAN_WIDTH_5:
2972 case NL80211_CHAN_WIDTH_10:
2973 case NL80211_CHAN_WIDTH_20_NOHT:
2974 case NL80211_CHAN_WIDTH_20:
2975 break;
2976 default:
2977 return -EINVAL;
2978 }
2979
2980 /* changes into another band are not supported */
2981 if (sdata->u.ibss.chandef.chan->band !=
2982 params->chandef.chan->band)
2983 return -EINVAL;
2984
66e01cf9
LC		 2985 /* see comments in the NL80211_IFTYPE_AP block */
2986 if (params->count > 1) {
2987 err = ieee80211_ibss_csa_beacon(sdata, params);
2988 if (err < 0)
2989 return err;
37fa2bdd 2990 *changed |= err;
66e01cf9
LC		 2991 }
2992
2993 ieee80211_send_action_csa(sdata, params);
2994
73da7d5b 2995 break;
c6da674a 2996#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2997 case NL80211_IFTYPE_MESH_POINT: {
2998 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2999
c6da674a
CYY		 3000 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
3001 return -EINVAL;
3002
3003 /* changes into another band are not supported */
3004 if (sdata->vif.bss_conf.chandef.chan->band !=
3005 params->chandef.chan->band)
3006 return -EINVAL;
3007
c782bf8c 3008 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 3009 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 3010 if (!ifmsh->pre_value)
3011 ifmsh->pre_value = 1;
3012 else
3013 ifmsh->pre_value++;
3014 }
0cb4d4dc 3015
66e01cf9
LC		 3016 /* see comments in the NL80211_IFTYPE_AP block */
3017 if (params->count > 1) {
3018 err = ieee80211_mesh_csa_beacon(sdata, params);
3019 if (err < 0) {
3020 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
3021 return err;
3022 }
37fa2bdd 3023 *changed |= err;
3f718fd8 3024 }
66e01cf9
LC		 3025
3026 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
3027 ieee80211_send_action_csa(sdata, params);
3028
c6da674a 3029 break;
37fa2bdd 3030 }
c6da674a 3031#endif
73da7d5b
SW		 3032 default:
3033 return -EOPNOTSUPP;
3034 }
3035
37fa2bdd
MK		 3036 return 0;
3037}
3038
f29f58a9
LC		 3039static int
3040__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3041 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 3042{
3043 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3044 struct ieee80211_local *local = sdata->local;
2b32713d 3045 struct ieee80211_chanctx_conf *conf;
37fa2bdd 3046 struct ieee80211_chanctx *chanctx;
03078de4 3047 int err, changed = 0;
37fa2bdd
MK		 3048
3049 sdata_assert_lock(sdata);
59af6928 3050 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 3051
3052 if (!list_empty(&local->roc_list) || local->scanning)
3053 return -EBUSY;
3054
3055 if (sdata->wdev.cac_started)
3056 return -EBUSY;
3057
3058 if (cfg80211_chandef_identical(&params->chandef,
3059 &sdata->vif.bss_conf.chandef))
3060 return -EINVAL;
3061
03078de4
MK		 3062 /* don't allow another channel switch if one is already active. */
3063 if (sdata->vif.csa_active)
3064 return -EBUSY;
3065
2b32713d
MK		 3066 mutex_lock(&local->chanctx_mtx);
3067 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
3068 lockdep_is_held(&local->chanctx_mtx));
3069 if (!conf) {
03078de4
MK		 3070 err = -EBUSY;
3071 goto out;
37fa2bdd
MK		 3072 }
3073
2b32713d 3074 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 3075 if (!chanctx) {
3076 err = -EBUSY;
3077 goto out;
37fa2bdd 3078 }
37fa2bdd 3079
03078de4
MK		 3080 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
3081 chanctx->mode,
3082 params->radar_required);
3083 if (err)
3084 goto out;
37fa2bdd 3085
03078de4
MK		 3086 /* if reservation is invalid then this will fail */
3087 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
3088 if (err) {
3089 ieee80211_vif_unreserve_chanctx(sdata);
3090 goto out;
3091 }
37fa2bdd
MK		 3092
3093 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 3094 if (err) {
3095 ieee80211_vif_unreserve_chanctx(sdata);
3096 goto out;
3097 }
37fa2bdd 3098
33787fc4 3099 sdata->csa_chandef = params->chandef;
59af6928 3100 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 3101 sdata->vif.csa_active = true;
3102
59af6928 3103 if (sdata->csa_block_tx)
a46992b4
LC		 3104 ieee80211_stop_vif_queues(local, sdata,
3105 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 3106
66e01cf9
LC		 3107 if (changed) {
3108 ieee80211_bss_info_change_notify(sdata, changed);
3109 drv_channel_switch_beacon(sdata, &params->chandef);
3110 } else {
3111 /* if the beacon didn't change, we can finalize immediately */
3112 ieee80211_csa_finalize(sdata);
3113 }
73da7d5b 3114
03078de4
MK		 3115out:
3116 mutex_unlock(&local->chanctx_mtx);
3117 return err;
73da7d5b
SW		 3118}
3119
59af6928
MK		 3120int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3121 struct cfg80211_csa_settings *params)
3122{
3123 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3124 struct ieee80211_local *local = sdata->local;
3125 int err;
3126
3127 mutex_lock(&local->mtx);
3128 err = __ieee80211_channel_switch(wiphy, dev, params);
3129 mutex_unlock(&local->mtx);
3130
3131 return err;
3132}
3133
71bbc994 3134static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
b176e629
AO		 3135 struct cfg80211_mgmt_tx_params *params,
3136 u64 *cookie)
026331c4 3137{
71bbc994 3138 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
9d38d85d
JB		 3139 struct ieee80211_local *local = sdata->local;
3140 struct sk_buff *skb;
3141 struct sta_info *sta;
b176e629 3142 const struct ieee80211_mgmt *mgmt = (void *)params->buf;
2eb278e0 3143 bool need_offchan = false;
e247bd90 3144 u32 flags;
2eb278e0 3145 int ret;
387910cc 3146 u8 *data;
f7ca38df 3147
b176e629 3148 if (params->dont_wait_for_ack)
e247bd90
JB		 3149 flags = IEEE80211_TX_CTL_NO_ACK;
3150 else
3151 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
3152 IEEE80211_TX_CTL_REQ_TX_STATUS;
3153
b176e629 3154 if (params->no_cck)
aad14ceb
RM		 3155 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
3156
9d38d85d
JB		 3157 switch (sdata->vif.type) {
3158 case NL80211_IFTYPE_ADHOC:
2eb278e0
JB		 3159 if (!sdata->vif.bss_conf.ibss_joined)
3160 need_offchan = true;
3161 /* fall through */
3162#ifdef CONFIG_MAC80211_MESH
3163 case NL80211_IFTYPE_MESH_POINT:
3164 if (ieee80211_vif_is_mesh(&sdata->vif) &&
3165 !sdata->u.mesh.mesh_id_len)
3166 need_offchan = true;
3167 /* fall through */
3168#endif
663fcafd
JB		 3169 case NL80211_IFTYPE_AP:
3170 case NL80211_IFTYPE_AP_VLAN:
3171 case NL80211_IFTYPE_P2P_GO:
2eb278e0
JB		 3172 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
3173 !ieee80211_vif_is_mesh(&sdata->vif) &&
3174 !rcu_access_pointer(sdata->bss->beacon))
3175 need_offchan = true;
663fcafd 3176 if (!ieee80211_is_action(mgmt->frame_control) ||
ac49e1a8 3177 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC ||
cd7760e6
SW		 3178 mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED ||
3179 mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT)
9d38d85d
JB		 3180 break;
3181 rcu_read_lock();
3182 sta = sta_info_get(sdata, mgmt->da);
3183 rcu_read_unlock();
3184 if (!sta)
3185 return -ENOLINK;
3186 break;
3187 case NL80211_IFTYPE_STATION:
663fcafd 3188 case NL80211_IFTYPE_P2P_CLIENT:
2eb278e0
JB		 3189 if (!sdata->u.mgd.associated)
3190 need_offchan = true;
9d38d85d 3191 break;
f142c6b9
JB		 3192 case NL80211_IFTYPE_P2P_DEVICE:
3193 need_offchan = true;
3194 break;
9d38d85d
JB		 3195 default:
3196 return -EOPNOTSUPP;
3197 }
3198
f7aeb6fb
AQ		 3199 /* configurations requiring offchan cannot work if no channel has been
3200 * specified
3201 */
b176e629 3202 if (need_offchan && !params->chan)
f7aeb6fb
AQ		 3203 return -EINVAL;
3204
2eb278e0
JB		 3205 mutex_lock(&local->mtx);
3206
3207 /* Check if the operating channel is the requested channel */
3208 if (!need_offchan) {
55de908a
JB		 3209 struct ieee80211_chanctx_conf *chanctx_conf;
3210
3211 rcu_read_lock();
3212 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3213
f7aeb6fb 3214 if (chanctx_conf) {
b176e629
AO		 3215 need_offchan = params->chan &&
3216 (params->chan !=
3217 chanctx_conf->def.chan);
3218 } else if (!params->chan) {
f7aeb6fb
AQ		 3219 ret = -EINVAL;
3220 rcu_read_unlock();
3221 goto out_unlock;
3222 } else {
2eb278e0 3223 need_offchan = true;
f7aeb6fb 3224 }
55de908a 3225 rcu_read_unlock();
2eb278e0
JB		 3226 }
3227
b176e629 3228 if (need_offchan && !params->offchan) {
2eb278e0
JB		 3229 ret = -EBUSY;
3230 goto out_unlock;
3231 }
3232
b176e629 3233 skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len);
2eb278e0
JB		 3234 if (!skb) {
3235 ret = -ENOMEM;
3236 goto out_unlock;
3237 }
9d38d85d
JB		 3238 skb_reserve(skb, local->hw.extra_tx_headroom);
3239
387910cc
AO		 3240 data = skb_put(skb, params->len);
3241 memcpy(data, params->buf, params->len);
3242
3243 /* Update CSA counters */
3244 if (sdata->vif.csa_active &&
3245 (sdata->vif.type == NL80211_IFTYPE_AP ||
3246 sdata->vif.type == NL80211_IFTYPE_ADHOC) &&
3247 params->n_csa_offsets) {
3248 int i;
af296bdb 3249 struct beacon_data *beacon = NULL;
387910cc 3250
af296bdb
MK		 3251 rcu_read_lock();
3252
3253 if (sdata->vif.type == NL80211_IFTYPE_AP)
3254 beacon = rcu_dereference(sdata->u.ap.beacon);
3255 else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
3256 beacon = rcu_dereference(sdata->u.ibss.presp);
3257 else if (ieee80211_vif_is_mesh(&sdata->vif))
3258 beacon = rcu_dereference(sdata->u.mesh.beacon);
3259
3260 if (beacon)
3261 for (i = 0; i < params->n_csa_offsets; i++)
3262 data[params->csa_offsets[i]] =
3263 beacon->csa_current_counter;
3264
3265 rcu_read_unlock();
387910cc 3266 }
9d38d85d
JB		 3267
3268 IEEE80211_SKB_CB(skb)->flags = flags;
3269
3270 skb->dev = sdata->dev;
9d38d85d 3271
2eb278e0 3272 if (!need_offchan) {
7f9f78ab 3273 *cookie = (unsigned long) skb;
f30221e4 3274 ieee80211_tx_skb(sdata, skb);
2eb278e0
JB		 3275 ret = 0;
3276 goto out_unlock;
f30221e4
JB		 3277 }
3278
6c17b77b
SF		 3279 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN |
3280 IEEE80211_TX_INTFL_OFFCHAN_TX_OK;
2eb278e0
JB		 3281 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
3282 IEEE80211_SKB_CB(skb)->hw_queue =
3283 local->hw.offchannel_tx_hw_queue;
f30221e4 3284
2eb278e0 3285 /* This will handle all kinds of coalescing and immediate TX */
b176e629
AO		 3286 ret = ieee80211_start_roc_work(local, sdata, params->chan,
3287 params->wait, cookie, skb,
d339d5ca 3288 IEEE80211_ROC_TYPE_MGMT_TX);
2eb278e0
JB		 3289 if (ret)
3290 kfree_skb(skb);
3291 out_unlock:
3292 mutex_unlock(&local->mtx);
3293 return ret;
026331c4
JM		 3294}
3295
f30221e4 3296static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
71bbc994 3297 struct wireless_dev *wdev,
f30221e4
JB		 3298 u64 cookie)
3299{
71bbc994 3300 struct ieee80211_local *local = wiphy_priv(wiphy);
f30221e4 3301
2eb278e0 3302 return ieee80211_cancel_roc(local, cookie, true);
f30221e4
JB		 3303}
3304
7be5086d 3305static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3306 struct wireless_dev *wdev,
7be5086d
JB		 3307 u16 frame_type, bool reg)
3308{
3309 struct ieee80211_local *local = wiphy_priv(wiphy);
3310
6abe0563 3311 switch (frame_type) {
6abe0563
WH		 3312 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
3313 if (reg)
3314 local->probe_req_reg++;
3315 else
3316 local->probe_req_reg--;
7be5086d 3317
35f5149e
FF		 3318 if (!local->open_count)
3319 break;
3320
6abe0563
WH		 3321 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
3322 break;
3323 default:
3324 break;
3325 }
7be5086d
JB		 3326}
3327
15d96753
BR		 3328static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3329{
3330 struct ieee80211_local *local = wiphy_priv(wiphy);
3331
3332 if (local->started)
3333 return -EOPNOTSUPP;
3334
3335 return drv_set_antenna(local, tx_ant, rx_ant);
3336}
3337
3338static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3339{
3340 struct ieee80211_local *local = wiphy_priv(wiphy);
3341
3342 return drv_get_antenna(local, tx_ant, rx_ant);
3343}
3344
c68f4b89
JB		 3345static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3346 struct net_device *dev,
3347 struct cfg80211_gtk_rekey_data *data)
3348{
3349 struct ieee80211_local *local = wiphy_priv(wiphy);
3350 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3351
3352 if (!local->ops->set_rekey_data)
3353 return -EOPNOTSUPP;
3354
3355 drv_set_rekey_data(local, sdata, data);
3356
3357 return 0;
3358}
3359
06500736
JB		 3360static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3361 const u8 *peer, u64 *cookie)
3362{
3363 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3364 struct ieee80211_local *local = sdata->local;
3365 struct ieee80211_qos_hdr *nullfunc;
3366 struct sk_buff *skb;
3367 int size = sizeof(*nullfunc);
3368 __le16 fc;
3369 bool qos;
3370 struct ieee80211_tx_info *info;
3371 struct sta_info *sta;
55de908a
JB		 3372 struct ieee80211_chanctx_conf *chanctx_conf;
3373 enum ieee80211_band band;
06500736
JB		 3374
3375 rcu_read_lock();
55de908a
JB		 3376 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3377 if (WARN_ON(!chanctx_conf)) {
3378 rcu_read_unlock();
3379 return -EINVAL;
3380 }
4bf88530 3381 band = chanctx_conf->def.chan->band;
03bb7f42 3382 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3383 if (sta) {
a74a8c84 3384 qos = sta->sta.wme;
b4487c2d
JB		 3385 } else {
3386 rcu_read_unlock();
06500736 3387 return -ENOLINK;
b4487c2d 3388 }
06500736
JB		 3389
3390 if (qos) {
3391 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3392 IEEE80211_STYPE_QOS_NULLFUNC |
3393 IEEE80211_FCTL_FROMDS);
3394 } else {
3395 size -= 2;
3396 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3397 IEEE80211_STYPE_NULLFUNC |
3398 IEEE80211_FCTL_FROMDS);
3399 }
3400
3401 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a
JB		 3402 if (!skb) {
3403 rcu_read_unlock();
06500736 3404 return -ENOMEM;
55de908a 3405 }
06500736
JB		 3406
3407 skb->dev = dev;
3408
3409 skb_reserve(skb, local->hw.extra_tx_headroom);
3410
3411 nullfunc = (void *) skb_put(skb, size);
3412 nullfunc->frame_control = fc;
3413 nullfunc->duration_id = 0;
3414 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3415 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3416 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3417 nullfunc->seq_ctrl = 0;
3418
3419 info = IEEE80211_SKB_CB(skb);
3420
3421 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3422 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3423
3424 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3425 skb->priority = 7;
3426 if (qos)
3427 nullfunc->qos_ctrl = cpu_to_le16(7);
3428
3429 local_bh_disable();
55de908a 3430 ieee80211_xmit(sdata, skb, band);
06500736 3431 local_bh_enable();
55de908a 3432 rcu_read_unlock();
06500736
JB		 3433
3434 *cookie = (unsigned long) skb;
3435 return 0;
3436}
3437
683b6d3b
JB		 3438static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3439 struct wireless_dev *wdev,
3440 struct cfg80211_chan_def *chandef)
5b7ccaf3 3441{
55de908a 3442 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3443 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3444 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3445 int ret = -ENODATA;
55de908a
JB		 3446
3447 rcu_read_lock();
feda3027
JB		 3448 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3449 if (chanctx_conf) {
3450 *chandef = chanctx_conf->def;
3451 ret = 0;
3452 } else if (local->open_count > 0 &&
3453 local->open_count == local->monitors &&
3454 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3455 if (local->use_chanctx)
3456 *chandef = local->monitor_chandef;
3457 else
675a0b04 3458 *chandef = local->_oper_chandef;
683b6d3b 3459 ret = 0;
55de908a
JB		 3460 }
3461 rcu_read_unlock();
5b7ccaf3 3462
683b6d3b 3463 return ret;
5b7ccaf3
JB		 3464}
3465
6d52563f
JB		 3466#ifdef CONFIG_PM
3467static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3468{
3469 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3470}
3471#endif
3472
32db6b54
KP		 3473static int ieee80211_set_qos_map(struct wiphy *wiphy,
3474 struct net_device *dev,
3475 struct cfg80211_qos_map *qos_map)
3476{
3477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3478 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3479
3480 if (qos_map) {
3481 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3482 if (!new_qos_map)
3483 return -ENOMEM;
3484 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3485 } else {
3486 /* A NULL qos_map was passed to disable QoS mapping */
3487 new_qos_map = NULL;
3488 }
3489
194ff52d 3490 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3491 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3492 if (old_qos_map)
3493 kfree_rcu(old_qos_map, rcu_head);
3494
3495 return 0;
3496}
3497
3b1700bd
JM		 3498static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3499 struct net_device *dev,
3500 struct cfg80211_chan_def *chandef)
3501{
3502 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3503 int ret;
3504 u32 changed = 0;
3505
3506 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3507 if (ret == 0)
3508 ieee80211_bss_info_change_notify(sdata, changed);
3509
3510 return ret;
3511}
3512
8a47cea7 3513const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3514 .add_virtual_intf = ieee80211_add_iface,
3515 .del_virtual_intf = ieee80211_del_iface,
42613db7 3516 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3517 .start_p2p_device = ieee80211_start_p2p_device,
3518 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3519 .add_key = ieee80211_add_key,
3520 .del_key = ieee80211_del_key,
62da92fb 3521 .get_key = ieee80211_get_key,
e8cbb4cb 3522 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3523 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3524 .start_ap = ieee80211_start_ap,
3525 .change_beacon = ieee80211_change_beacon,
3526 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3527 .add_station = ieee80211_add_station,
3528 .del_station = ieee80211_del_station,
3529 .change_station = ieee80211_change_station,
7bbdd2d9 3530 .get_station = ieee80211_get_station,
c5dd9c2b 3531 .dump_station = ieee80211_dump_station,
1289723e 3532 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3533#ifdef CONFIG_MAC80211_MESH
3534 .add_mpath = ieee80211_add_mpath,
3535 .del_mpath = ieee80211_del_mpath,
3536 .change_mpath = ieee80211_change_mpath,
3537 .get_mpath = ieee80211_get_mpath,
3538 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 3539 .update_mesh_config = ieee80211_update_mesh_config,
3540 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3541 .join_mesh = ieee80211_join_mesh,
3542 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3543#endif
9f1ba906 3544 .change_bss = ieee80211_change_bss,
31888487 3545 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3546 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3547 .suspend = ieee80211_suspend,
3548 .resume = ieee80211_resume,
2a519311 3549 .scan = ieee80211_scan,
79f460ca
LC		 3550 .sched_scan_start = ieee80211_sched_scan_start,
3551 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3552 .auth = ieee80211_auth,
3553 .assoc = ieee80211_assoc,
3554 .deauth = ieee80211_deauth,
3555 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3556 .join_ibss = ieee80211_join_ibss,
3557 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3558 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3559 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3560 .set_tx_power = ieee80211_set_tx_power,
3561 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3562 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3563 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3564 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3565 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3566 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3567 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3568 .remain_on_channel = ieee80211_remain_on_channel,
3569 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3570 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3571 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3572 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3573 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3574 .set_antenna = ieee80211_set_antenna,
3575 .get_antenna = ieee80211_get_antenna,
c68f4b89 3576 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3577 .tdls_oper = ieee80211_tdls_oper,
3578 .tdls_mgmt = ieee80211_tdls_mgmt,
06500736 3579 .probe_client = ieee80211_probe_client,
b53be792 3580 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3581#ifdef CONFIG_PM
3582 .set_wakeup = ieee80211_set_wakeup,
3583#endif
5b7ccaf3 3584 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3585 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3586 .channel_switch = ieee80211_channel_switch,
32db6b54 3587 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3588 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
f0706e82 3589};
Linux 6.x block layer and io_uring tree(s)