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Merge branch 'linus' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
[deliverable/linux.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
b2eb0ee6 5 * Copyright 2013-2015 Intel Mobile Communications GmbH
f0706e82
JB		 6 *
7 * This file is GPLv2 as found in COPYING.
8 */
9
e8cbb4cb 10#include <linux/ieee80211.h>
f0706e82
JB		 11#include <linux/nl80211.h>
12#include <linux/rtnetlink.h>
5a0e3ad6 13#include <linux/slab.h>
881d966b 14#include <net/net_namespace.h>
5dfdaf58 15#include <linux/rcupdate.h>
dfe018bf 16#include <linux/if_ether.h>
f0706e82
JB		 17#include <net/cfg80211.h>
18#include "ieee80211_i.h"
24487981 19#include "driver-ops.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
02219b3a 22#include "wme.h"
c5dd9c2b 23
552bff0c
JB		 24static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
25 const char *name,
6bab2e19 26 unsigned char name_assign_type,
84efbb84
JB		 27 enum nl80211_iftype type,
28 u32 *flags,
29 struct vif_params *params)
f0706e82
JB		 30{
31 struct ieee80211_local *local = wiphy_priv(wiphy);
84efbb84 32 struct wireless_dev *wdev;
8cc9a739
MW		 33 struct ieee80211_sub_if_data *sdata;
34 int err;
f0706e82 35
6bab2e19 36 err = ieee80211_if_add(local, name, name_assign_type, &wdev, type, params);
f9e10ce4
JB		 37 if (err)
38 return ERR_PTR(err);
8cc9a739 39
f9e10ce4 40 if (type == NL80211_IFTYPE_MONITOR && flags) {
84efbb84 41 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
f9e10ce4
JB		 42 sdata->u.mntr_flags = *flags;
43 }
44
84efbb84 45 return wdev;
f0706e82
JB		 46}
47
84efbb84 48static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
f0706e82 49{
84efbb84 50 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
f0706e82 51
75636525 52 return 0;
f0706e82
JB		 53}
54
e36d56b6
JB		 55static int ieee80211_change_iface(struct wiphy *wiphy,
56 struct net_device *dev,
2ec600d6
LCC		 57 enum nl80211_iftype type, u32 *flags,
58 struct vif_params *params)
42613db7 59{
9607e6b6 60 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 61 int ret;
42613db7 62
05c914fe 63 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 64 if (ret)
65 return ret;
42613db7 66
9bc383de 67 if (type == NL80211_IFTYPE_AP_VLAN &&
49ddf8e6 68 params && params->use_4addr == 0) {
a9b3cd7f 69 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
49ddf8e6
JB		 70 ieee80211_check_fast_rx_iface(sdata);
71 } else if (type == NL80211_IFTYPE_STATION &&
72 params && params->use_4addr >= 0) {
9bc383de 73 sdata->u.mgd.use_4addr = params->use_4addr;
49ddf8e6 74 }
9bc383de 75
85416a4f
CL		 76 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
77 struct ieee80211_local *local = sdata->local;
78
79 if (ieee80211_sdata_running(sdata)) {
31eba5bc
FF		 80 u32 mask = MONITOR_FLAG_COOK_FRAMES |
81 MONITOR_FLAG_ACTIVE;
82
85416a4f 83 /*
31eba5bc
FF		 84 * Prohibit MONITOR_FLAG_COOK_FRAMES and
85 * MONITOR_FLAG_ACTIVE to be changed while the
86 * interface is up.
85416a4f
CL		 87 * Else we would need to add a lot of cruft
88 * to update everything:
89 * cooked_mntrs, monitor and all fif_* counters
90 * reconfigure hardware
91 */
31eba5bc 92 if ((*flags & mask) != (sdata->u.mntr_flags & mask))
85416a4f
CL		 93 return -EBUSY;
94
95 ieee80211_adjust_monitor_flags(sdata, -1);
96 sdata->u.mntr_flags = *flags;
97 ieee80211_adjust_monitor_flags(sdata, 1);
98
99 ieee80211_configure_filter(local);
100 } else {
101 /*
102 * Because the interface is down, ieee80211_do_stop
103 * and ieee80211_do_open take care of "everything"
104 * mentioned in the comment above.
105 */
106 sdata->u.mntr_flags = *flags;
107 }
108 }
f7917af9 109
42613db7
JB		 110 return 0;
111}
112
f142c6b9
JB		 113static int ieee80211_start_p2p_device(struct wiphy *wiphy,
114 struct wireless_dev *wdev)
115{
b6a55015
LC		 116 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
117 int ret;
118
119 mutex_lock(&sdata->local->chanctx_mtx);
120 ret = ieee80211_check_combinations(sdata, NULL, 0, 0);
121 mutex_unlock(&sdata->local->chanctx_mtx);
122 if (ret < 0)
123 return ret;
124
f142c6b9
JB		 125 return ieee80211_do_open(wdev, true);
126}
127
128static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
129 struct wireless_dev *wdev)
130{
131 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
132}
133
b53be792
SW		 134static int ieee80211_set_noack_map(struct wiphy *wiphy,
135 struct net_device *dev,
136 u16 noack_map)
137{
138 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
139
140 sdata->noack_map = noack_map;
17c18bf8
JB		 141
142 ieee80211_check_fast_xmit_iface(sdata);
143
b53be792
SW		 144 return 0;
145}
146
e8cbb4cb 147static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 148 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 149 struct key_params *params)
150{
26a58456 151 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2475b1cc 152 struct ieee80211_local *local = sdata->local;
e8cbb4cb 153 struct sta_info *sta = NULL;
2475b1cc 154 const struct ieee80211_cipher_scheme *cs = NULL;
db4d1169 155 struct ieee80211_key *key;
3b96766f 156 int err;
e8cbb4cb 157
26a58456 158 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 159 return -ENETDOWN;
160
97359d12 161 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 162 switch (params->cipher) {
163 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 164 case WLAN_CIPHER_SUITE_TKIP:
97359d12 165 case WLAN_CIPHER_SUITE_WEP104:
2475b1cc 166 if (IS_ERR(local->wep_tx_tfm))
97359d12 167 return -EINVAL;
3cfcf6ac 168 break;
2475b1cc 169 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 170 case WLAN_CIPHER_SUITE_CCMP_256:
2475b1cc 171 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 172 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
8ade538b
JM		 173 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
174 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
2475b1cc 175 case WLAN_CIPHER_SUITE_GCMP:
00b9cfa3 176 case WLAN_CIPHER_SUITE_GCMP_256:
2475b1cc 177 break;
e8cbb4cb 178 default:
2475b1cc 179 cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type);
97359d12 180 break;
e8cbb4cb
JB		 181 }
182
97359d12 183 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
2475b1cc
MS		 184 params->key, params->seq_len, params->seq,
185 cs);
1ac62ba7
BH		 186 if (IS_ERR(key))
187 return PTR_ERR(key);
db4d1169 188
e31b8213
JB		 189 if (pairwise)
190 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
191
2475b1cc 192 mutex_lock(&local->sta_mtx);
3b96766f 193
e8cbb4cb 194 if (mac_addr) {
ff973af7
TP		 195 if (ieee80211_vif_is_mesh(&sdata->vif))
196 sta = sta_info_get(sdata, mac_addr);
197 else
198 sta = sta_info_get_bss(sdata, mac_addr);
1626e0fa
JB		 199 /*
200 * The ASSOC test makes sure the driver is ready to
201 * receive the key. When wpa_supplicant has roamed
202 * using FT, it attempts to set the key before
203 * association has completed, this rejects that attempt
d070f913 204 * so it will set the key again after association.
1626e0fa
JB		 205 *
206 * TODO: accept the key if we have a station entry and
207 * add it to the device after the station.
208 */
209 if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) {
79cf2dfa 210 ieee80211_key_free_unused(key);
3b96766f
JB		 211 err = -ENOENT;
212 goto out_unlock;
db4d1169 213 }
e8cbb4cb
JB		 214 }
215
e548c49e
JB		 216 switch (sdata->vif.type) {
217 case NL80211_IFTYPE_STATION:
218 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
219 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
220 break;
221 case NL80211_IFTYPE_AP:
222 case NL80211_IFTYPE_AP_VLAN:
223 /* Keys without a station are used for TX only */
224 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
225 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
226 break;
227 case NL80211_IFTYPE_ADHOC:
228 /* no MFP (yet) */
229 break;
230 case NL80211_IFTYPE_MESH_POINT:
231#ifdef CONFIG_MAC80211_MESH
232 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
233 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
234 break;
235#endif
236 case NL80211_IFTYPE_WDS:
237 case NL80211_IFTYPE_MONITOR:
238 case NL80211_IFTYPE_P2P_DEVICE:
239 case NL80211_IFTYPE_UNSPECIFIED:
240 case NUM_NL80211_IFTYPES:
241 case NL80211_IFTYPE_P2P_CLIENT:
242 case NL80211_IFTYPE_P2P_GO:
6e0bd6c3 243 case NL80211_IFTYPE_OCB:
e548c49e
JB		 244 /* shouldn't happen */
245 WARN_ON_ONCE(1);
246 break;
247 }
248
2475b1cc
MS		 249 if (sta)
250 sta->cipher_scheme = cs;
251
3ffc2a90 252 err = ieee80211_key_link(key, sdata, sta);
db4d1169 253
3b96766f 254 out_unlock:
2475b1cc 255 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 256
257 return err;
e8cbb4cb
JB		 258}
259
260static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 261 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 262{
5c0c3641
JB		 263 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
264 struct ieee80211_local *local = sdata->local;
e8cbb4cb 265 struct sta_info *sta;
5c0c3641 266 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 267 int ret;
268
5c0c3641
JB		 269 mutex_lock(&local->sta_mtx);
270 mutex_lock(&local->key_mtx);
3b96766f 271
e8cbb4cb 272 if (mac_addr) {
3b96766f
JB		 273 ret = -ENOENT;
274
0e5ded5a 275 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 276 if (!sta)
3b96766f 277 goto out_unlock;
e8cbb4cb 278
5c0c3641 279 if (pairwise)
2475b1cc 280 key = key_mtx_dereference(local, sta->ptk[key_idx]);
5c0c3641 281 else
40b275b6 282 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 283 } else
40b275b6 284 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 285
5c0c3641 286 if (!key) {
3b96766f
JB		 287 ret = -ENOENT;
288 goto out_unlock;
289 }
e8cbb4cb 290
3b8d9c29 291 ieee80211_key_free(key, true);
e8cbb4cb 292
3b96766f
JB		 293 ret = 0;
294 out_unlock:
5c0c3641
JB		 295 mutex_unlock(&local->key_mtx);
296 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 297
298 return ret;
e8cbb4cb
JB		 299}
300
62da92fb 301static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 302 u8 key_idx, bool pairwise, const u8 *mac_addr,
303 void *cookie,
62da92fb
JB		 304 void (*callback)(void *cookie,
305 struct key_params *params))
306{
14db74bc 307 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 308 struct sta_info *sta = NULL;
309 u8 seq[6] = {0};
310 struct key_params params;
e31b8213 311 struct ieee80211_key *key = NULL;
aba83a0b 312 u64 pn64;
62da92fb
JB		 313 u32 iv32;
314 u16 iv16;
315 int err = -ENOENT;
9352c19f 316 struct ieee80211_key_seq kseq = {};
62da92fb 317
14db74bc
JB		 318 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
319
3b96766f
JB		 320 rcu_read_lock();
321
62da92fb 322 if (mac_addr) {
0e5ded5a 323 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 324 if (!sta)
325 goto out;
326
354e159d 327 if (pairwise && key_idx < NUM_DEFAULT_KEYS)
2475b1cc 328 key = rcu_dereference(sta->ptk[key_idx]);
31f1f4ec
MS		 329 else if (!pairwise &&
330 key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS)
a3836e02 331 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 332 } else
a3836e02 333 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 334
335 if (!key)
336 goto out;
337
338 memset(&params, 0, sizeof(params));
339
97359d12 340 params.cipher = key->conf.cipher;
62da92fb 341
97359d12
JB		 342 switch (key->conf.cipher) {
343 case WLAN_CIPHER_SUITE_TKIP:
f8079d43
EP		 344 pn64 = atomic64_read(&key->conf.tx_pn);
345 iv32 = TKIP_PN_TO_IV32(pn64);
346 iv16 = TKIP_PN_TO_IV16(pn64);
62da92fb 347
9352c19f
JB		 348 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
349 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
350 drv_get_key_seq(sdata->local, key, &kseq);
351 iv32 = kseq.tkip.iv32;
352 iv16 = kseq.tkip.iv16;
353 }
62da92fb
JB		 354
355 seq[0] = iv16 & 0xff;
356 seq[1] = (iv16 >> 8) & 0xff;
357 seq[2] = iv32 & 0xff;
358 seq[3] = (iv32 >> 8) & 0xff;
359 seq[4] = (iv32 >> 16) & 0xff;
360 seq[5] = (iv32 >> 24) & 0xff;
361 params.seq = seq;
362 params.seq_len = 6;
363 break;
97359d12 364 case WLAN_CIPHER_SUITE_CCMP:
2b2ba0db 365 case WLAN_CIPHER_SUITE_CCMP_256:
97359d12 366 case WLAN_CIPHER_SUITE_AES_CMAC:
56c52da2 367 case WLAN_CIPHER_SUITE_BIP_CMAC_256:
db388a56
JB		 368 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
369 offsetof(typeof(kseq), aes_cmac));
8ade538b
JM		 370 case WLAN_CIPHER_SUITE_BIP_GMAC_128:
371 case WLAN_CIPHER_SUITE_BIP_GMAC_256:
db388a56
JB		 372 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
373 offsetof(typeof(kseq), aes_gmac));
00b9cfa3
JM		 374 case WLAN_CIPHER_SUITE_GCMP:
375 case WLAN_CIPHER_SUITE_GCMP_256:
db388a56
JB		 376 BUILD_BUG_ON(offsetof(typeof(kseq), ccmp) !=
377 offsetof(typeof(kseq), gcmp));
378
9352c19f
JB		 379 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE &&
380 !(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
381 drv_get_key_seq(sdata->local, key, &kseq);
db388a56 382 memcpy(seq, kseq.ccmp.pn, 6);
9352c19f 383 } else {
db388a56 384 pn64 = atomic64_read(&key->conf.tx_pn);
9352c19f
JB		 385 seq[0] = pn64;
386 seq[1] = pn64 >> 8;
387 seq[2] = pn64 >> 16;
388 seq[3] = pn64 >> 24;
389 seq[4] = pn64 >> 32;
390 seq[5] = pn64 >> 40;
391 }
00b9cfa3
JM		 392 params.seq = seq;
393 params.seq_len = 6;
394 break;
a31cf1c6
JB		 395 default:
396 if (!(key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE))
397 break;
398 if (WARN_ON(key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV))
399 break;
400 drv_get_key_seq(sdata->local, key, &kseq);
401 params.seq = kseq.hw.seq;
402 params.seq_len = kseq.hw.seq_len;
403 break;
62da92fb
JB		 404 }
405
406 params.key = key->conf.key;
407 params.key_len = key->conf.keylen;
408
409 callback(cookie, &params);
410 err = 0;
411
412 out:
3b96766f 413 rcu_read_unlock();
62da92fb
JB		 414 return err;
415}
416
e8cbb4cb
JB		 417static int ieee80211_config_default_key(struct wiphy *wiphy,
418 struct net_device *dev,
dbd2fd65
JB		 419 u8 key_idx, bool uni,
420 bool multi)
e8cbb4cb 421{
ad0e2b5a 422 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 423
f7e0104c 424 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 425
426 return 0;
427}
428
3cfcf6ac
JM		 429static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
430 struct net_device *dev,
431 u8 key_idx)
432{
66c52421 433 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 434
3cfcf6ac
JM		 435 ieee80211_set_default_mgmt_key(sdata, key_idx);
436
3cfcf6ac
JM		 437 return 0;
438}
439
6b62bf32
TP		 440void sta_set_rate_info_tx(struct sta_info *sta,
441 const struct ieee80211_tx_rate *rate,
442 struct rate_info *rinfo)
443{
444 rinfo->flags = 0;
8bc83c24 445 if (rate->flags & IEEE80211_TX_RC_MCS) {
6b62bf32 446 rinfo->flags |= RATE_INFO_FLAGS_MCS;
8bc83c24
JB		 447 rinfo->mcs = rate->idx;
448 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
449 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
450 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
451 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
452 } else {
453 struct ieee80211_supported_band *sband;
2103dec1
SW		 454 int shift = ieee80211_vif_get_shift(&sta->sdata->vif);
455 u16 brate;
456
8bc83c24
JB		 457 sband = sta->local->hw.wiphy->bands[
458 ieee80211_get_sdata_band(sta->sdata)];
2103dec1
SW		 459 brate = sband->bitrates[rate->idx].bitrate;
460 rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift);
8bc83c24 461 }
6b62bf32 462 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
b51f3bee
JB		 463 rinfo->bw = RATE_INFO_BW_40;
464 else if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
465 rinfo->bw = RATE_INFO_BW_80;
466 else if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
467 rinfo->bw = RATE_INFO_BW_160;
468 else
469 rinfo->bw = RATE_INFO_BW_20;
6b62bf32
TP		 470 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
471 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
6b62bf32
TP		 472}
473
c5dd9c2b 474static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 475 int idx, u8 *mac, struct station_info *sinfo)
c5dd9c2b 476{
3b53fde8 477 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 478 struct ieee80211_local *local = sdata->local;
c5dd9c2b 479 struct sta_info *sta;
d0709a65
JB		 480 int ret = -ENOENT;
481
66572cfc 482 mutex_lock(&local->sta_mtx);
c5dd9c2b 483
3b53fde8 484 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 485 if (sta) {
486 ret = 0;
17741cdc 487 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 488 sta_set_sinfo(sta, sinfo);
489 }
c5dd9c2b 490
66572cfc 491 mutex_unlock(&local->sta_mtx);
c5dd9c2b 492
d0709a65 493 return ret;
c5dd9c2b
LCC		 494}
495
1289723e
HS		 496static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
497 int idx, struct survey_info *survey)
498{
499 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
500
1289723e
HS		 501 return drv_get_survey(local, idx, survey);
502}
503
7bbdd2d9 504static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 505 const u8 *mac, struct station_info *sinfo)
7bbdd2d9 506{
abe60632 507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
66572cfc 508 struct ieee80211_local *local = sdata->local;
7bbdd2d9 509 struct sta_info *sta;
d0709a65 510 int ret = -ENOENT;
7bbdd2d9 511
66572cfc 512 mutex_lock(&local->sta_mtx);
7bbdd2d9 513
0e5ded5a 514 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 515 if (sta) {
516 ret = 0;
517 sta_set_sinfo(sta, sinfo);
518 }
519
66572cfc 520 mutex_unlock(&local->sta_mtx);
d0709a65
JB		 521
522 return ret;
7bbdd2d9
JB		 523}
524
55de908a 525static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
683b6d3b 526 struct cfg80211_chan_def *chandef)
3d9e6e12
JB		 527{
528 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a
JB		 529 struct ieee80211_sub_if_data *sdata;
530 int ret = 0;
3d9e6e12 531
4bf88530 532 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
55de908a 533 return 0;
3d9e6e12 534
34a3740d 535 mutex_lock(&local->mtx);
55de908a
JB		 536 mutex_lock(&local->iflist_mtx);
537 if (local->use_chanctx) {
538 sdata = rcu_dereference_protected(
539 local->monitor_sdata,
540 lockdep_is_held(&local->iflist_mtx));
541 if (sdata) {
542 ieee80211_vif_release_channel(sdata);
4bf88530 543 ret = ieee80211_vif_use_channel(sdata, chandef,
55de908a
JB		 544 IEEE80211_CHANCTX_EXCLUSIVE);
545 }
546 } else if (local->open_count == local->monitors) {
675a0b04 547 local->_oper_chandef = *chandef;
55de908a
JB		 548 ieee80211_hw_config(local, 0);
549 }
3d9e6e12 550
4bf88530
JB		 551 if (ret == 0)
552 local->monitor_chandef = *chandef;
55de908a 553 mutex_unlock(&local->iflist_mtx);
34a3740d 554 mutex_unlock(&local->mtx);
3d9e6e12 555
55de908a 556 return ret;
e8c9bd5b
JB		 557}
558
02945821 559static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 560 const u8 *resp, size_t resp_len,
561 const struct ieee80211_csa_settings *csa)
02945821 562{
aa7a0080 563 struct probe_resp *new, *old;
02945821
AN		 564
565 if (!resp || !resp_len)
aba4e6ff 566 return 1;
02945821 567
7ca133bc 568 old = sdata_dereference(sdata->u.ap.probe_resp, sdata);
02945821 569
aa7a0080 570 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
02945821
AN		 571 if (!new)
572 return -ENOMEM;
573
aa7a0080
ES		 574 new->len = resp_len;
575 memcpy(new->data, resp, resp_len);
02945821 576
af296bdb
MK		 577 if (csa)
578 memcpy(new->csa_counter_offsets, csa->counter_offsets_presp,
579 csa->n_counter_offsets_presp *
580 sizeof(new->csa_counter_offsets[0]));
581
02945821 582 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
aa7a0080
ES		 583 if (old)
584 kfree_rcu(old, rcu_head);
02945821
AN		 585
586 return 0;
587}
588
0ae07968 589static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
af296bdb
MK		 590 struct cfg80211_beacon_data *params,
591 const struct ieee80211_csa_settings *csa)
5dfdaf58
JB		 592{
593 struct beacon_data *new, *old;
594 int new_head_len, new_tail_len;
8860020e
JB		 595 int size, err;
596 u32 changed = BSS_CHANGED_BEACON;
5dfdaf58 597
7ca133bc
SW		 598 old = sdata_dereference(sdata->u.ap.beacon, sdata);
599
5dfdaf58 600
5dfdaf58
JB		 601 /* Need to have a beacon head if we don't have one yet */
602 if (!params->head && !old)
8860020e 603 return -EINVAL;
5dfdaf58
JB		 604
605 /* new or old head? */
606 if (params->head)
607 new_head_len = params->head_len;
608 else
609 new_head_len = old->head_len;
610
611 /* new or old tail? */
612 if (params->tail || !old)
613 /* params->tail_len will be zero for !params->tail */
614 new_tail_len = params->tail_len;
615 else
616 new_tail_len = old->tail_len;
617
618 size = sizeof(*new) + new_head_len + new_tail_len;
619
620 new = kzalloc(size, GFP_KERNEL);
621 if (!new)
622 return -ENOMEM;
623
624 /* start filling the new info now */
625
5dfdaf58
JB		 626 /*
627 * pointers go into the block we allocated,
628 * memory is | beacon_data | head | tail |
629 */
630 new->head = ((u8 *) new) + sizeof(*new);
631 new->tail = new->head + new_head_len;
632 new->head_len = new_head_len;
633 new->tail_len = new_tail_len;
634
af296bdb
MK		 635 if (csa) {
636 new->csa_current_counter = csa->count;
637 memcpy(new->csa_counter_offsets, csa->counter_offsets_beacon,
638 csa->n_counter_offsets_beacon *
639 sizeof(new->csa_counter_offsets[0]));
640 }
641
5dfdaf58
JB		 642 /* copy in head */
643 if (params->head)
644 memcpy(new->head, params->head, new_head_len);
645 else
646 memcpy(new->head, old->head, new_head_len);
647
648 /* copy in optional tail */
649 if (params->tail)
650 memcpy(new->tail, params->tail, new_tail_len);
651 else
652 if (old)
653 memcpy(new->tail, old->tail, new_tail_len);
654
02945821 655 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
af296bdb 656 params->probe_resp_len, csa);
8860020e
JB		 657 if (err < 0)
658 return err;
659 if (err == 0)
02945821
AN		 660 changed |= BSS_CHANGED_AP_PROBE_RESP;
661
8860020e
JB		 662 rcu_assign_pointer(sdata->u.ap.beacon, new);
663
664 if (old)
665 kfree_rcu(old, rcu_head);
7827493b 666
8860020e 667 return changed;
5dfdaf58
JB		 668}
669
8860020e
JB		 670static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
671 struct cfg80211_ap_settings *params)
5dfdaf58 672{
8860020e 673 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
34a3740d 674 struct ieee80211_local *local = sdata->local;
5dfdaf58 675 struct beacon_data *old;
665c93a9 676 struct ieee80211_sub_if_data *vlan;
8860020e
JB		 677 u32 changed = BSS_CHANGED_BEACON_INT |
678 BSS_CHANGED_BEACON_ENABLED |
679 BSS_CHANGED_BEACON |
339afbf4 680 BSS_CHANGED_SSID |
4bcc56bb
JB		 681 BSS_CHANGED_P2P_PS |
682 BSS_CHANGED_TXPOWER;
8860020e 683 int err;
14db74bc 684
7ca133bc 685 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 686 if (old)
687 return -EALREADY;
688
f6993174
EP		 689 switch (params->smps_mode) {
690 case NL80211_SMPS_OFF:
691 sdata->smps_mode = IEEE80211_SMPS_OFF;
692 break;
693 case NL80211_SMPS_STATIC:
694 sdata->smps_mode = IEEE80211_SMPS_STATIC;
695 break;
696 case NL80211_SMPS_DYNAMIC:
697 sdata->smps_mode = IEEE80211_SMPS_DYNAMIC;
698 break;
699 default:
700 return -EINVAL;
701 }
04ecd257
JB		 702 sdata->needed_rx_chains = sdata->local->rx_chains;
703
34a3740d 704 mutex_lock(&local->mtx);
4bf88530 705 err = ieee80211_vif_use_channel(sdata, &params->chandef,
55de908a 706 IEEE80211_CHANCTX_SHARED);
4e141dad
MK		 707 if (!err)
708 ieee80211_vif_copy_chanctx_to_vlans(sdata, false);
34a3740d 709 mutex_unlock(&local->mtx);
aa430da4
JB		 710 if (err)
711 return err;
712
665c93a9
JB		 713 /*
714 * Apply control port protocol, this allows us to
715 * not encrypt dynamic WEP control frames.
716 */
717 sdata->control_port_protocol = params->crypto.control_port_ethertype;
718 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
2475b1cc
MS		 719 sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local,
720 &params->crypto,
721 sdata->vif.type);
722
665c93a9
JB		 723 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
724 vlan->control_port_protocol =
725 params->crypto.control_port_ethertype;
726 vlan->control_port_no_encrypt =
727 params->crypto.control_port_no_encrypt;
2475b1cc
MS		 728 vlan->encrypt_headroom =
729 ieee80211_cs_headroom(sdata->local,
730 &params->crypto,
731 vlan->vif.type);
665c93a9
JB		 732 }
733
8860020e
JB		 734 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
735 sdata->vif.bss_conf.dtim_period = params->dtim_period;
d6a83228 736 sdata->vif.bss_conf.enable_beacon = true;
52cfa1d6 737 sdata->vif.bss_conf.allow_p2p_go_ps = sdata->vif.p2p;
8860020e
JB		 738
739 sdata->vif.bss_conf.ssid_len = params->ssid_len;
740 if (params->ssid_len)
741 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
742 params->ssid_len);
743 sdata->vif.bss_conf.hidden_ssid =
744 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
745
67baf663
JD		 746 memset(&sdata->vif.bss_conf.p2p_noa_attr, 0,
747 sizeof(sdata->vif.bss_conf.p2p_noa_attr));
748 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow =
749 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
750 if (params->p2p_opp_ps)
751 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
752 IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4 753
af296bdb 754 err = ieee80211_assign_beacon(sdata, &params->beacon, NULL);
0297ea17
EG		 755 if (err < 0) {
756 ieee80211_vif_release_channel(sdata);
8860020e 757 return err;
0297ea17 758 }
8860020e
JB		 759 changed |= err;
760
1041638f
JB		 761 err = drv_start_ap(sdata->local, sdata);
762 if (err) {
7ca133bc
SW		 763 old = sdata_dereference(sdata->u.ap.beacon, sdata);
764
1041638f
JB		 765 if (old)
766 kfree_rcu(old, rcu_head);
767 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
0297ea17 768 ieee80211_vif_release_channel(sdata);
1041638f
JB		 769 return err;
770 }
771
057d5f4b 772 ieee80211_recalc_dtim(local, sdata);
8860020e
JB		 773 ieee80211_bss_info_change_notify(sdata, changed);
774
3edaf3e6
JB		 775 netif_carrier_on(dev);
776 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
777 netif_carrier_on(vlan->dev);
778
665c93a9 779 return 0;
5dfdaf58
JB		 780}
781
8860020e
JB		 782static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
783 struct cfg80211_beacon_data *params)
5dfdaf58 784{
14db74bc 785 struct ieee80211_sub_if_data *sdata;
5dfdaf58 786 struct beacon_data *old;
8860020e 787 int err;
5dfdaf58 788
14db74bc 789 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
dbd72850 790 sdata_assert_lock(sdata);
14db74bc 791
73da7d5b
SW		 792 /* don't allow changing the beacon while CSA is in place - offset
793 * of channel switch counter may change
794 */
795 if (sdata->vif.csa_active)
796 return -EBUSY;
797
7ca133bc 798 old = sdata_dereference(sdata->u.ap.beacon, sdata);
5dfdaf58
JB		 799 if (!old)
800 return -ENOENT;
801
af296bdb 802 err = ieee80211_assign_beacon(sdata, params, NULL);
8860020e
JB		 803 if (err < 0)
804 return err;
805 ieee80211_bss_info_change_notify(sdata, err);
806 return 0;
5dfdaf58
JB		 807}
808
8860020e 809static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
5dfdaf58 810{
7b20b8e8
JB		 811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
812 struct ieee80211_sub_if_data *vlan;
813 struct ieee80211_local *local = sdata->local;
814 struct beacon_data *old_beacon;
815 struct probe_resp *old_probe_resp;
d2859df5 816 struct cfg80211_chan_def chandef;
14db74bc 817
dbd72850
MK		 818 sdata_assert_lock(sdata);
819
7ca133bc 820 old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata);
7b20b8e8 821 if (!old_beacon)
5dfdaf58 822 return -ENOENT;
7ca133bc 823 old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata);
5dfdaf58 824
73da7d5b 825 /* abort any running channel switch */
59af6928 826 mutex_lock(&local->mtx);
73da7d5b 827 sdata->vif.csa_active = false;
a46992b4
LC		 828 if (sdata->csa_block_tx) {
829 ieee80211_wake_vif_queues(local, sdata,
830 IEEE80211_QUEUE_STOP_REASON_CSA);
831 sdata->csa_block_tx = false;
832 }
833
59af6928
MK		 834 mutex_unlock(&local->mtx);
835
1f3b8a2b
SW		 836 kfree(sdata->u.ap.next_beacon);
837 sdata->u.ap.next_beacon = NULL;
838
7b20b8e8 839 /* turn off carrier for this interface and dependent VLANs */
3edaf3e6
JB		 840 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
841 netif_carrier_off(vlan->dev);
842 netif_carrier_off(dev);
843
7b20b8e8 844 /* remove beacon and probe response */
a9b3cd7f 845 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
7b20b8e8
JB		 846 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
847 kfree_rcu(old_beacon, rcu_head);
848 if (old_probe_resp)
849 kfree_rcu(old_probe_resp, rcu_head);
8ffcc704 850 sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF;
8860020e 851
e716251d 852 __sta_info_flush(sdata, true);
7907c7d3 853 ieee80211_free_keys(sdata, true);
75de9113 854
d6a83228 855 sdata->vif.bss_conf.enable_beacon = false;
0eabccd9 856 sdata->vif.bss_conf.ssid_len = 0;
d6a83228 857 clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state);
2d0ddec5 858 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
8860020e 859
a6b368f6 860 if (sdata->wdev.cac_started) {
d2859df5 861 chandef = sdata->vif.bss_conf.chandef;
a6b368f6 862 cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
d2859df5
JD		 863 cfg80211_cac_event(sdata->dev, &chandef,
864 NL80211_RADAR_CAC_ABORTED,
a6b368f6
SW		 865 GFP_KERNEL);
866 }
867
1041638f
JB		 868 drv_stop_ap(sdata->local, sdata);
869
7b20b8e8
JB		 870 /* free all potentially still buffered bcast frames */
871 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
872 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
873
34a3740d 874 mutex_lock(&local->mtx);
4e141dad 875 ieee80211_vif_copy_chanctx_to_vlans(sdata, true);
55de908a 876 ieee80211_vif_release_channel(sdata);
34a3740d 877 mutex_unlock(&local->mtx);
55de908a 878
2d0ddec5 879 return 0;
5dfdaf58
JB		 880}
881
4fd6931e
JB		 882/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
883struct iapp_layer2_update {
884 u8 da[ETH_ALEN]; /* broadcast */
885 u8 sa[ETH_ALEN]; /* STA addr */
886 __be16 len; /* 6 */
887 u8 dsap; /* 0 */
888 u8 ssap; /* 0 */
889 u8 control;
890 u8 xid_info[3];
bc10502d 891} __packed;
4fd6931e
JB		 892
893static void ieee80211_send_layer2_update(struct sta_info *sta)
894{
895 struct iapp_layer2_update *msg;
896 struct sk_buff *skb;
897
898 /* Send Level 2 Update Frame to update forwarding tables in layer 2
899 * bridge devices */
900
901 skb = dev_alloc_skb(sizeof(*msg));
902 if (!skb)
903 return;
904 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
905
906 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
907 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
908
e83e6541 909 eth_broadcast_addr(msg->da);
17741cdc 910 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 911 msg->len = htons(6);
912 msg->dsap = 0;
913 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
914 msg->control = 0xaf; /* XID response lsb.1111F101.
915 * F=0 (no poll command; unsolicited frame) */
916 msg->xid_info[0] = 0x81; /* XID format identifier */
917 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
918 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
919
d0709a65
JB		 920 skb->dev = sta->sdata->dev;
921 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 922 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 923 netif_rx_ni(skb);
4fd6931e
JB		 924}
925
d582cffb
JB		 926static int sta_apply_auth_flags(struct ieee80211_local *local,
927 struct sta_info *sta,
928 u32 mask, u32 set)
929{
930 int ret;
931
932 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
933 set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
934 !test_sta_flag(sta, WLAN_STA_AUTH)) {
935 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
936 if (ret)
937 return ret;
938 }
939
940 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
941 set & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
942 !test_sta_flag(sta, WLAN_STA_ASSOC)) {
c23e31cf
MP		 943 /*
944 * When peer becomes associated, init rate control as
945 * well. Some drivers require rate control initialized
946 * before drv_sta_state() is called.
947 */
44674d9c 948 if (!test_sta_flag(sta, WLAN_STA_RATE_CONTROL))
c23e31cf
MP		 949 rate_control_rate_init(sta);
950
d582cffb
JB		 951 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
952 if (ret)
953 return ret;
954 }
955
956 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
957 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
958 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
959 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
960 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
961 else
962 ret = 0;
963 if (ret)
964 return ret;
965 }
966
967 if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) &&
968 !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
969 test_sta_flag(sta, WLAN_STA_ASSOC)) {
970 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
971 if (ret)
972 return ret;
973 }
974
975 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
976 !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
977 test_sta_flag(sta, WLAN_STA_AUTH)) {
978 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
979 if (ret)
980 return ret;
981 }
982
983 return 0;
984}
985
13657702
JB		 986static void sta_apply_mesh_params(struct ieee80211_local *local,
987 struct sta_info *sta,
988 struct station_parameters *params)
989{
990#ifdef CONFIG_MAC80211_MESH
991 struct ieee80211_sub_if_data *sdata = sta->sdata;
992 u32 changed = 0;
993
994 if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) {
995 switch (params->plink_state) {
996 case NL80211_PLINK_ESTAB:
997 if (sta->mesh->plink_state != NL80211_PLINK_ESTAB)
998 changed = mesh_plink_inc_estab_count(sdata);
999 sta->mesh->plink_state = params->plink_state;
7d27a0ba 1000 sta->mesh->aid = params->peer_aid;
13657702
JB		 1001
1002 ieee80211_mps_sta_status_update(sta);
1003 changed |= ieee80211_mps_set_sta_local_pm(sta,
1004 sdata->u.mesh.mshcfg.power_mode);
1005 break;
1006 case NL80211_PLINK_LISTEN:
1007 case NL80211_PLINK_BLOCKED:
1008 case NL80211_PLINK_OPN_SNT:
1009 case NL80211_PLINK_OPN_RCVD:
1010 case NL80211_PLINK_CNF_RCVD:
1011 case NL80211_PLINK_HOLDING:
1012 if (sta->mesh->plink_state == NL80211_PLINK_ESTAB)
1013 changed = mesh_plink_dec_estab_count(sdata);
1014 sta->mesh->plink_state = params->plink_state;
1015
1016 ieee80211_mps_sta_status_update(sta);
1017 changed |= ieee80211_mps_set_sta_local_pm(sta,
1018 NL80211_MESH_POWER_UNKNOWN);
1019 break;
1020 default:
1021 /* nothing */
1022 break;
1023 }
1024 }
1025
1026 switch (params->plink_action) {
1027 case NL80211_PLINK_ACTION_NO_ACTION:
1028 /* nothing */
1029 break;
1030 case NL80211_PLINK_ACTION_OPEN:
1031 changed |= mesh_plink_open(sta);
1032 break;
1033 case NL80211_PLINK_ACTION_BLOCK:
1034 changed |= mesh_plink_block(sta);
1035 break;
1036 }
1037
1038 if (params->local_pm)
1039 changed |= ieee80211_mps_set_sta_local_pm(sta,
1040 params->local_pm);
1041
1042 ieee80211_mbss_info_change_notify(sdata, changed);
1043#endif
1044}
1045
d9a7ddb0
JB		 1046static int sta_apply_parameters(struct ieee80211_local *local,
1047 struct sta_info *sta,
1048 struct station_parameters *params)
4fd6931e 1049{
d9a7ddb0 1050 int ret = 0;
8318d78a 1051 struct ieee80211_supported_band *sband;
d0709a65 1052 struct ieee80211_sub_if_data *sdata = sta->sdata;
57fbcce3 1053 enum nl80211_band band = ieee80211_get_sdata_band(sdata);
eccb8e8f 1054 u32 mask, set;
4fd6931e 1055
55de908a 1056 sband = local->hw.wiphy->bands[band];
ae5eb026 1057
eccb8e8f
JB		 1058 mask = params->sta_flags_mask;
1059 set = params->sta_flags_set;
73651ee6 1060
d582cffb
JB		 1061 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1062 /*
1063 * In mesh mode, ASSOCIATED isn't part of the nl80211
1064 * API but must follow AUTHENTICATED for driver state.
1065 */
1066 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1067 mask |= BIT(NL80211_STA_FLAG_ASSOCIATED);
1068 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
1069 set |= BIT(NL80211_STA_FLAG_ASSOCIATED);
77ee7c89
JB		 1070 } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1071 /*
1072 * TDLS -- everything follows authorized, but
1073 * only becoming authorized is possible, not
1074 * going back
1075 */
1076 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1077 set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1078 BIT(NL80211_STA_FLAG_ASSOCIATED);
1079 mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) |
1080 BIT(NL80211_STA_FLAG_ASSOCIATED);
1081 }
eccb8e8f 1082 }
4fd6931e 1083
2c44be81
JB		 1084 if (mask & BIT(NL80211_STA_FLAG_WME) &&
1085 local->hw.queues >= IEEE80211_NUM_ACS)
1086 sta->sta.wme = set & BIT(NL80211_STA_FLAG_WME);
1087
44674d9c
AB		 1088 /* auth flags will be set later for TDLS,
1089 * and for unassociated stations that move to assocaited */
1090 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1091 !((mask & BIT(NL80211_STA_FLAG_ASSOCIATED)) &&
1092 (set & BIT(NL80211_STA_FLAG_ASSOCIATED)))) {
68885a54
AN		 1093 ret = sta_apply_auth_flags(local, sta, mask, set);
1094 if (ret)
1095 return ret;
1096 }
d9a7ddb0 1097
eccb8e8f 1098 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 1099 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 1100 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1101 else
1102 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 1103 }
4fd6931e 1104
eccb8e8f 1105 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
93f0490e 1106 sta->sta.mfp = !!(set & BIT(NL80211_STA_FLAG_MFP));
eccb8e8f 1107 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 1108 set_sta_flag(sta, WLAN_STA_MFP);
1109 else
1110 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 1111 }
b39c48fa 1112
07ba55d7 1113 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 1114 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 1115 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1116 else
1117 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 1118 }
4fd6931e 1119
9041c1fa
AN		 1120 /* mark TDLS channel switch support, if the AP allows it */
1121 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1122 !sdata->u.mgd.tdls_chan_switch_prohibited &&
1123 params->ext_capab_len >= 4 &&
1124 params->ext_capab[3] & WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH)
1125 set_sta_flag(sta, WLAN_STA_TDLS_CHAN_SWITCH);
1126
b98fb44f 1127 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
82c0cc90 1128 !sdata->u.mgd.tdls_wider_bw_prohibited &&
b98fb44f
AN		 1129 ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
1130 params->ext_capab_len >= 8 &&
1131 params->ext_capab[7] & WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED)
1132 set_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW);
1133
3b9ce80c
JB		 1134 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1135 sta->sta.uapsd_queues = params->uapsd_queues;
1136 sta->sta.max_sp = params->max_sp;
1137 }
9533b4ac 1138
506bcfa8
EG		 1139 /* The sender might not have sent the last bit, consider it to be 0 */
1140 if (params->ext_capab_len >= 8) {
1141 u8 val = (params->ext_capab[7] &
1142 WLAN_EXT_CAPA8_MAX_MSDU_IN_AMSDU_LSB) >> 7;
1143
1144 /* we did get all the bits, take the MSB as well */
1145 if (params->ext_capab_len >= 9) {
1146 u8 val_msb = params->ext_capab[8] &
1147 WLAN_EXT_CAPA9_MAX_MSDU_IN_AMSDU_MSB;
1148 val_msb <<= 1;
1149 val |= val_msb;
1150 }
1151
1152 switch (val) {
1153 case 1:
1154 sta->sta.max_amsdu_subframes = 32;
1155 break;
1156 case 2:
1157 sta->sta.max_amsdu_subframes = 16;
1158 break;
1159 case 3:
1160 sta->sta.max_amsdu_subframes = 8;
1161 break;
1162 default:
1163 sta->sta.max_amsdu_subframes = 0;
1164 }
1165 }
1166
51b50fbe
JB		 1167 /*
1168 * cfg80211 validates this (1-2007) and allows setting the AID
1169 * only when creating a new station entry
1170 */
1171 if (params->aid)
1172 sta->sta.aid = params->aid;
1173
73651ee6 1174 /*
ba23d206
JB		 1175 * Some of the following updates would be racy if called on an
1176 * existing station, via ieee80211_change_station(). However,
1177 * all such changes are rejected by cfg80211 except for updates
1178 * changing the supported rates on an existing but not yet used
1179 * TDLS peer.
73651ee6
JB		 1180 */
1181
4fd6931e
JB		 1182 if (params->listen_interval >= 0)
1183 sta->listen_interval = params->listen_interval;
1184
1185 if (params->supported_rates) {
2103dec1
SW		 1186 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1187 sband, params->supported_rates,
1188 params->supported_rates_len,
1189 &sta->sta.supp_rates[band]);
4fd6931e 1190 }
c5dd9c2b 1191
d9fe60de 1192 if (params->ht_capa)
ef96a842 1193 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
e1a0c6b3 1194 params->ht_capa, sta);
36aedc90 1195
506bcfa8 1196 /* VHT can override some HT caps such as the A-MSDU max length */
f461be3e
MP		 1197 if (params->vht_capa)
1198 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
4a34215e 1199 params->vht_capa, sta);
f461be3e 1200
b1bce14a 1201 if (params->opmode_notif_used) {
b1bce14a
MK		 1202 /* returned value is only needed for rc update, but the
1203 * rc isn't initialized here yet, so ignore it
1204 */
1205 __ieee80211_vht_handle_opmode(sdata, sta,
cf1e05c6 1206 params->opmode_notif, band);
b1bce14a
MK		 1207 }
1208
52cfa1d6
AB		 1209 if (params->support_p2p_ps >= 0)
1210 sta->sta.support_p2p_ps = params->support_p2p_ps;
1211
13657702
JB		 1212 if (ieee80211_vif_is_mesh(&sdata->vif))
1213 sta_apply_mesh_params(local, sta, params);
d9a7ddb0 1214
68885a54 1215 /* set the STA state after all sta info from usermode has been set */
44674d9c
AB		 1216 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) ||
1217 set & BIT(NL80211_STA_FLAG_ASSOCIATED)) {
68885a54
AN		 1218 ret = sta_apply_auth_flags(local, sta, mask, set);
1219 if (ret)
1220 return ret;
1221 }
1222
d9a7ddb0 1223 return 0;
4fd6931e
JB		 1224}
1225
1226static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1227 const u8 *mac,
1228 struct station_parameters *params)
4fd6931e 1229{
14db74bc 1230 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1231 struct sta_info *sta;
1232 struct ieee80211_sub_if_data *sdata;
73651ee6 1233 int err;
b8d476c8 1234 int layer2_update;
4fd6931e 1235
4fd6931e
JB		 1236 if (params->vlan) {
1237 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1238
05c914fe
JB		 1239 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1240 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 1241 return -EINVAL;
1242 } else
1243 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1244
b203ca39 1245 if (ether_addr_equal(mac, sdata->vif.addr))
03e4497e
JB		 1246 return -EINVAL;
1247
1248 if (is_multicast_ether_addr(mac))
1249 return -EINVAL;
1250
1251 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 1252 if (!sta)
1253 return -ENOMEM;
4fd6931e 1254
44674d9c
AB		 1255 if (params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1256 sta->sta.tdls = true;
4fd6931e 1257
d9a7ddb0
JB		 1258 err = sta_apply_parameters(local, sta, params);
1259 if (err) {
1260 sta_info_free(local, sta);
1261 return err;
1262 }
4fd6931e 1263
d64cf63e 1264 /*
44674d9c
AB		 1265 * for TDLS and for unassociated station, rate control should be
1266 * initialized only when rates are known and station is marked
1267 * authorized/associated
d64cf63e 1268 */
44674d9c
AB		 1269 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER) &&
1270 test_sta_flag(sta, WLAN_STA_ASSOC))
d64cf63e 1271 rate_control_rate_init(sta);
4fd6931e 1272
b8d476c8
JM		 1273 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1274 sdata->vif.type == NL80211_IFTYPE_AP;
1275
34e89507 1276 err = sta_info_insert_rcu(sta);
73651ee6 1277 if (err) {
73651ee6
JB		 1278 rcu_read_unlock();
1279 return err;
1280 }
1281
b8d476c8 1282 if (layer2_update)
73651ee6
JB		 1283 ieee80211_send_layer2_update(sta);
1284
1285 rcu_read_unlock();
1286
4fd6931e
JB		 1287 return 0;
1288}
1289
1290static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
89c771e5 1291 struct station_del_parameters *params)
4fd6931e 1292{
14db74bc 1293 struct ieee80211_sub_if_data *sdata;
4fd6931e 1294
14db74bc
JB		 1295 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1296
89c771e5
JM		 1297 if (params->mac)
1298 return sta_info_destroy_addr_bss(sdata, params->mac);
4fd6931e 1299
b998e8bb 1300 sta_info_flush(sdata);
4fd6931e
JB		 1301 return 0;
1302}
1303
1304static int ieee80211_change_station(struct wiphy *wiphy,
3b3a0162 1305 struct net_device *dev, const u8 *mac,
4fd6931e
JB		 1306 struct station_parameters *params)
1307{
abe60632 1308 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 1309 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 1310 struct sta_info *sta;
1311 struct ieee80211_sub_if_data *vlansdata;
77ee7c89 1312 enum cfg80211_station_type statype;
35b88623 1313 int err;
4fd6931e 1314
87be1e1e 1315 mutex_lock(&local->sta_mtx);
98dd6a57 1316
0e5ded5a 1317 sta = sta_info_get_bss(sdata, mac);
98dd6a57 1318 if (!sta) {
77ee7c89
JB		 1319 err = -ENOENT;
1320 goto out_err;
98dd6a57 1321 }
4fd6931e 1322
77ee7c89
JB		 1323 switch (sdata->vif.type) {
1324 case NL80211_IFTYPE_MESH_POINT:
a6dad6a2 1325 if (sdata->u.mesh.user_mpm)
eef941e6 1326 statype = CFG80211_STA_MESH_PEER_USER;
77ee7c89 1327 else
eef941e6 1328 statype = CFG80211_STA_MESH_PEER_KERNEL;
77ee7c89
JB		 1329 break;
1330 case NL80211_IFTYPE_ADHOC:
1331 statype = CFG80211_STA_IBSS;
1332 break;
1333 case NL80211_IFTYPE_STATION:
1334 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1335 statype = CFG80211_STA_AP_STA;
1336 break;
1337 }
1338 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1339 statype = CFG80211_STA_TDLS_PEER_ACTIVE;
1340 else
1341 statype = CFG80211_STA_TDLS_PEER_SETUP;
1342 break;
1343 case NL80211_IFTYPE_AP:
1344 case NL80211_IFTYPE_AP_VLAN:
44674d9c
AB		 1345 if (test_sta_flag(sta, WLAN_STA_ASSOC))
1346 statype = CFG80211_STA_AP_CLIENT;
1347 else
1348 statype = CFG80211_STA_AP_CLIENT_UNASSOC;
77ee7c89
JB		 1349 break;
1350 default:
1351 err = -EOPNOTSUPP;
1352 goto out_err;
bdd90d5e
JB		 1353 }
1354
77ee7c89
JB		 1355 err = cfg80211_check_station_change(wiphy, params, statype);
1356 if (err)
1357 goto out_err;
1358
d0709a65 1359 if (params->vlan && params->vlan != sta->sdata->dev) {
7e3ed02c
FF		 1360 bool prev_4addr = false;
1361 bool new_4addr = false;
1362
4fd6931e
JB		 1363 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1364
9bc383de 1365 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c 1366 if (vlansdata->u.vlan.sta) {
77ee7c89
JB		 1367 err = -EBUSY;
1368 goto out_err;
3305443c 1369 }
f14543ee 1370
cf778b00 1371 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
7e3ed02c 1372 new_4addr = true;
49ddf8e6 1373 __ieee80211_check_fast_rx_iface(vlansdata);
7e3ed02c
FF		 1374 }
1375
1376 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1377 sta->sdata->u.vlan.sta) {
0c2bef46 1378 RCU_INIT_POINTER(sta->sdata->u.vlan.sta, NULL);
7e3ed02c 1379 prev_4addr = true;
f14543ee
FF		 1380 }
1381
14db74bc 1382 sta->sdata = vlansdata;
464daaf0 1383 ieee80211_check_fast_xmit(sta);
7e3ed02c
FF		 1384
1385 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1386 prev_4addr != new_4addr) {
1387 if (new_4addr)
1388 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1389 else
1390 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1391 }
1392
4fd6931e
JB		 1393 ieee80211_send_layer2_update(sta);
1394 }
1395
35b88623 1396 err = sta_apply_parameters(local, sta, params);
77ee7c89
JB		 1397 if (err)
1398 goto out_err;
4fd6931e 1399
87be1e1e 1400 mutex_unlock(&local->sta_mtx);
98dd6a57 1401
687da132
EG		 1402 if ((sdata->vif.type == NL80211_IFTYPE_AP ||
1403 sdata->vif.type == NL80211_IFTYPE_AP_VLAN) &&
1404 sta->known_smps_mode != sta->sdata->bss->req_smps &&
1405 test_sta_flag(sta, WLAN_STA_AUTHORIZED) &&
1406 sta_info_tx_streams(sta) != 1) {
1407 ht_dbg(sta->sdata,
1408 "%pM just authorized and MIMO capable - update SMPS\n",
1409 sta->sta.addr);
1410 ieee80211_send_smps_action(sta->sdata,
1411 sta->sdata->bss->req_smps,
1412 sta->sta.addr,
1413 sta->sdata->vif.bss_conf.bssid);
1414 }
1415
808118cb 1416 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
ab095877 1417 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4a733ef1 1418 ieee80211_recalc_ps(local);
ab095877
EP		 1419 ieee80211_recalc_ps_vif(sdata);
1420 }
77ee7c89 1421
4fd6931e 1422 return 0;
77ee7c89
JB		 1423out_err:
1424 mutex_unlock(&local->sta_mtx);
1425 return err;
4fd6931e
JB		 1426}
1427
c5dd9c2b
LCC		 1428#ifdef CONFIG_MAC80211_MESH
1429static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1430 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1431{
14db74bc 1432 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1433 struct mesh_path *mpath;
1434 struct sta_info *sta;
c5dd9c2b 1435
14db74bc
JB		 1436 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1437
d0709a65 1438 rcu_read_lock();
abe60632 1439 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1440 if (!sta) {
1441 rcu_read_unlock();
c5dd9c2b 1442 return -ENOENT;
d0709a65 1443 }
c5dd9c2b 1444
ae76eef0
BC		 1445 mpath = mesh_path_add(sdata, dst);
1446 if (IS_ERR(mpath)) {
d0709a65 1447 rcu_read_unlock();
ae76eef0 1448 return PTR_ERR(mpath);
d0709a65 1449 }
c5dd9c2b 1450
c5dd9c2b 1451 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1452
c5dd9c2b
LCC		 1453 rcu_read_unlock();
1454 return 0;
1455}
1456
1457static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162 1458 const u8 *dst)
c5dd9c2b 1459{
f698d856
JBG		 1460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1461
c5dd9c2b 1462 if (dst)
bf7cd94d 1463 return mesh_path_del(sdata, dst);
c5dd9c2b 1464
ece1a2e7 1465 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 1466 return 0;
1467}
1468
3b3a0162
JB		 1469static int ieee80211_change_mpath(struct wiphy *wiphy, struct net_device *dev,
1470 const u8 *dst, const u8 *next_hop)
c5dd9c2b 1471{
14db74bc 1472 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1473 struct mesh_path *mpath;
1474 struct sta_info *sta;
1475
14db74bc
JB		 1476 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1477
d0709a65
JB		 1478 rcu_read_lock();
1479
abe60632 1480 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1481 if (!sta) {
1482 rcu_read_unlock();
c5dd9c2b 1483 return -ENOENT;
d0709a65 1484 }
c5dd9c2b 1485
bf7cd94d 1486 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1487 if (!mpath) {
1488 rcu_read_unlock();
c5dd9c2b
LCC		 1489 return -ENOENT;
1490 }
1491
1492 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1493
c5dd9c2b
LCC		 1494 rcu_read_unlock();
1495 return 0;
1496}
1497
1498static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1499 struct mpath_info *pinfo)
1500{
a3836e02
JB		 1501 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1502
1503 if (next_hop_sta)
1504 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b 1505 else
c84a67a2 1506 eth_zero_addr(next_hop);
c5dd9c2b 1507
7ce8c7a3
LAYS		 1508 memset(pinfo, 0, sizeof(*pinfo));
1509
2bdaf386 1510 pinfo->generation = mpath->sdata->u.mesh.mesh_paths_generation;
f5ea9120 1511
c5dd9c2b 1512 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1513 MPATH_INFO_SN |
c5dd9c2b
LCC		 1514 MPATH_INFO_METRIC |
1515 MPATH_INFO_EXPTIME |
1516 MPATH_INFO_DISCOVERY_TIMEOUT |
1517 MPATH_INFO_DISCOVERY_RETRIES |
1518 MPATH_INFO_FLAGS;
1519
1520 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1521 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1522 pinfo->metric = mpath->metric;
1523 if (time_before(jiffies, mpath->exp_time))
1524 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1525 pinfo->discovery_timeout =
1526 jiffies_to_msecs(mpath->discovery_timeout);
1527 pinfo->discovery_retries = mpath->discovery_retries;
c5dd9c2b
LCC		 1528 if (mpath->flags & MESH_PATH_ACTIVE)
1529 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1530 if (mpath->flags & MESH_PATH_RESOLVING)
1531 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1532 if (mpath->flags & MESH_PATH_SN_VALID)
1533 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1534 if (mpath->flags & MESH_PATH_FIXED)
1535 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
7ce8c7a3
LAYS		 1536 if (mpath->flags & MESH_PATH_RESOLVED)
1537 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
c5dd9c2b
LCC		 1538}
1539
1540static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1541 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1542
1543{
14db74bc 1544 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1545 struct mesh_path *mpath;
1546
14db74bc
JB		 1547 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1548
c5dd9c2b 1549 rcu_read_lock();
bf7cd94d 1550 mpath = mesh_path_lookup(sdata, dst);
c5dd9c2b
LCC		 1551 if (!mpath) {
1552 rcu_read_unlock();
1553 return -ENOENT;
1554 }
1555 memcpy(dst, mpath->dst, ETH_ALEN);
1556 mpath_set_pinfo(mpath, next_hop, pinfo);
1557 rcu_read_unlock();
1558 return 0;
1559}
1560
1561static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
3b3a0162
JB		 1562 int idx, u8 *dst, u8 *next_hop,
1563 struct mpath_info *pinfo)
c5dd9c2b 1564{
14db74bc 1565 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1566 struct mesh_path *mpath;
1567
14db74bc
JB		 1568 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1569
c5dd9c2b 1570 rcu_read_lock();
bf7cd94d 1571 mpath = mesh_path_lookup_by_idx(sdata, idx);
c5dd9c2b
LCC		 1572 if (!mpath) {
1573 rcu_read_unlock();
1574 return -ENOENT;
1575 }
1576 memcpy(dst, mpath->dst, ETH_ALEN);
1577 mpath_set_pinfo(mpath, next_hop, pinfo);
1578 rcu_read_unlock();
1579 return 0;
1580}
93da9cc1 1581
a2db2ed3
HR		 1582static void mpp_set_pinfo(struct mesh_path *mpath, u8 *mpp,
1583 struct mpath_info *pinfo)
1584{
1585 memset(pinfo, 0, sizeof(*pinfo));
1586 memcpy(mpp, mpath->mpp, ETH_ALEN);
1587
2bdaf386 1588 pinfo->generation = mpath->sdata->u.mesh.mpp_paths_generation;
a2db2ed3
HR		 1589}
1590
1591static int ieee80211_get_mpp(struct wiphy *wiphy, struct net_device *dev,
1592 u8 *dst, u8 *mpp, struct mpath_info *pinfo)
1593
1594{
1595 struct ieee80211_sub_if_data *sdata;
1596 struct mesh_path *mpath;
1597
1598 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1599
1600 rcu_read_lock();
1601 mpath = mpp_path_lookup(sdata, dst);
1602 if (!mpath) {
1603 rcu_read_unlock();
1604 return -ENOENT;
1605 }
1606 memcpy(dst, mpath->dst, ETH_ALEN);
1607 mpp_set_pinfo(mpath, mpp, pinfo);
1608 rcu_read_unlock();
1609 return 0;
1610}
1611
1612static int ieee80211_dump_mpp(struct wiphy *wiphy, struct net_device *dev,
1613 int idx, u8 *dst, u8 *mpp,
1614 struct mpath_info *pinfo)
1615{
1616 struct ieee80211_sub_if_data *sdata;
1617 struct mesh_path *mpath;
1618
1619 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1620
1621 rcu_read_lock();
1622 mpath = mpp_path_lookup_by_idx(sdata, idx);
1623 if (!mpath) {
1624 rcu_read_unlock();
1625 return -ENOENT;
1626 }
1627 memcpy(dst, mpath->dst, ETH_ALEN);
1628 mpp_set_pinfo(mpath, mpp, pinfo);
1629 rcu_read_unlock();
1630 return 0;
1631}
1632
24bdd9f4 1633static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1634 struct net_device *dev,
1635 struct mesh_config *conf)
1636{
1637 struct ieee80211_sub_if_data *sdata;
1638 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1639
93da9cc1 1640 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1641 return 0;
1642}
1643
1644static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1645{
1646 return (mask >> (parm-1)) & 0x1;
1647}
1648
c80d545d
JC		 1649static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1650 const struct mesh_setup *setup)
1651{
1652 u8 *new_ie;
1653 const u8 *old_ie;
4bb62344
CYY		 1654 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1655 struct ieee80211_sub_if_data, u.mesh);
c80d545d 1656
581a8b0f 1657 /* allocate information elements */
c80d545d 1658 new_ie = NULL;
581a8b0f 1659 old_ie = ifmsh->ie;
c80d545d 1660
581a8b0f
JC		 1661 if (setup->ie_len) {
1662 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1663 GFP_KERNEL);
1664 if (!new_ie)
1665 return -ENOMEM;
1666 }
581a8b0f
JC		 1667 ifmsh->ie_len = setup->ie_len;
1668 ifmsh->ie = new_ie;
1669 kfree(old_ie);
c80d545d
JC		 1670
1671 /* now copy the rest of the setup parameters */
1672 ifmsh->mesh_id_len = setup->mesh_id_len;
1673 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
d299a1f2 1674 ifmsh->mesh_sp_id = setup->sync_method;
c80d545d
JC		 1675 ifmsh->mesh_pp_id = setup->path_sel_proto;
1676 ifmsh->mesh_pm_id = setup->path_metric;
a6dad6a2 1677 ifmsh->user_mpm = setup->user_mpm;
0d4261ad 1678 ifmsh->mesh_auth_id = setup->auth_id;
b130e5ce
JC		 1679 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1680 if (setup->is_authenticated)
1681 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1682 if (setup->is_secure)
1683 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d 1684
4bb62344
CYY		 1685 /* mcast rate setting in Mesh Node */
1686 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1687 sizeof(setup->mcast_rate));
ffb3cf30 1688 sdata->vif.bss_conf.basic_rates = setup->basic_rates;
4bb62344 1689
9bdbf04d
MP		 1690 sdata->vif.bss_conf.beacon_int = setup->beacon_interval;
1691 sdata->vif.bss_conf.dtim_period = setup->dtim_period;
1692
c80d545d
JC		 1693 return 0;
1694}
1695
24bdd9f4 1696static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1697 struct net_device *dev, u32 mask,
1698 const struct mesh_config *nconf)
93da9cc1 1699{
1700 struct mesh_config *conf;
1701 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1702 struct ieee80211_if_mesh *ifmsh;
1703
93da9cc1 1704 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1705 ifmsh = &sdata->u.mesh;
93da9cc1 1706
93da9cc1 1707 /* Set the config options which we are interested in setting */
1708 conf = &(sdata->u.mesh.mshcfg);
1709 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1710 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1711 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1712 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1713 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1714 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1715 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1716 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1717 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1718 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1719 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1720 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21 1721 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
58886a90 1722 conf->element_ttl = nconf->element_ttl;
146bb483
TP		 1723 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) {
1724 if (ifmsh->user_mpm)
1725 return -EBUSY;
93da9cc1 1726 conf->auto_open_plinks = nconf->auto_open_plinks;
146bb483 1727 }
d299a1f2
JC		 1728 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1729 conf->dot11MeshNbrOffsetMaxNeighbor =
1730 nconf->dot11MeshNbrOffsetMaxNeighbor;
93da9cc1 1731 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1732 conf->dot11MeshHWMPmaxPREQretries =
1733 nconf->dot11MeshHWMPmaxPREQretries;
1734 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1735 conf->path_refresh_time = nconf->path_refresh_time;
1736 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1737 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1738 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1739 conf->dot11MeshHWMPactivePathTimeout =
1740 nconf->dot11MeshHWMPactivePathTimeout;
1741 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1742 conf->dot11MeshHWMPpreqMinInterval =
1743 nconf->dot11MeshHWMPpreqMinInterval;
dca7e943
TP		 1744 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1745 conf->dot11MeshHWMPperrMinInterval =
1746 nconf->dot11MeshHWMPperrMinInterval;
93da9cc1 1747 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1748 mask))
1749 conf->dot11MeshHWMPnetDiameterTraversalTime =
1750 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1751 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1752 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1753 ieee80211_mesh_root_setup(ifmsh);
1754 }
16dd7267 1755 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1756 /* our current gate announcement implementation rides on root
1757 * announcements, so require this ifmsh to also be a root node
1758 * */
1759 if (nconf->dot11MeshGateAnnouncementProtocol &&
dbb912cd
CYY		 1760 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1761 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
c6133661
TP		 1762 ieee80211_mesh_root_setup(ifmsh);
1763 }
16dd7267
JC		 1764 conf->dot11MeshGateAnnouncementProtocol =
1765 nconf->dot11MeshGateAnnouncementProtocol;
1766 }
a4f606ea 1767 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
0507e159
JC		 1768 conf->dot11MeshHWMPRannInterval =
1769 nconf->dot11MeshHWMPRannInterval;
94f90656
CYY		 1770 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1771 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
55335137
AN		 1772 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1773 /* our RSSI threshold implementation is supported only for
1774 * devices that report signal in dBm.
1775 */
30686bf7 1776 if (!ieee80211_hw_check(&sdata->local->hw, SIGNAL_DBM))
55335137
AN		 1777 return -ENOTSUPP;
1778 conf->rssi_threshold = nconf->rssi_threshold;
1779 }
70c33eaa
AN		 1780 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1781 conf->ht_opmode = nconf->ht_opmode;
1782 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1783 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1784 }
ac1073a6
CYY		 1785 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1786 conf->dot11MeshHWMPactivePathToRootTimeout =
1787 nconf->dot11MeshHWMPactivePathToRootTimeout;
1788 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1789 conf->dot11MeshHWMProotInterval =
1790 nconf->dot11MeshHWMProotInterval;
728b19e5
CYY		 1791 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1792 conf->dot11MeshHWMPconfirmationInterval =
1793 nconf->dot11MeshHWMPconfirmationInterval;
3f52b7e3
MP		 1794 if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) {
1795 conf->power_mode = nconf->power_mode;
1796 ieee80211_mps_local_status_update(sdata);
1797 }
2b5e1967 1798 if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask))
3f52b7e3
MP		 1799 conf->dot11MeshAwakeWindowDuration =
1800 nconf->dot11MeshAwakeWindowDuration;
66de6713
CT		 1801 if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask))
1802 conf->plink_timeout = nconf->plink_timeout;
2b5e1967 1803 ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON);
93da9cc1 1804 return 0;
1805}
1806
29cbe68c
JB		 1807static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1808 const struct mesh_config *conf,
1809 const struct mesh_setup *setup)
1810{
1811 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1812 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1813 int err;
29cbe68c 1814
c80d545d
JC		 1815 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1816 err = copy_mesh_setup(ifmsh, setup);
1817 if (err)
1818 return err;
cc1d2806 1819
04ecd257
JB		 1820 /* can mesh use other SMPS modes? */
1821 sdata->smps_mode = IEEE80211_SMPS_OFF;
1822 sdata->needed_rx_chains = sdata->local->rx_chains;
1823
34a3740d 1824 mutex_lock(&sdata->local->mtx);
4bf88530 1825 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
55de908a 1826 IEEE80211_CHANCTX_SHARED);
34a3740d 1827 mutex_unlock(&sdata->local->mtx);
cc1d2806
JB		 1828 if (err)
1829 return err;
1830
2b5e1967 1831 return ieee80211_start_mesh(sdata);
29cbe68c
JB		 1832}
1833
1834static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1835{
1836 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1837
1838 ieee80211_stop_mesh(sdata);
34a3740d 1839 mutex_lock(&sdata->local->mtx);
55de908a 1840 ieee80211_vif_release_channel(sdata);
34a3740d 1841 mutex_unlock(&sdata->local->mtx);
29cbe68c
JB		 1842
1843 return 0;
1844}
c5dd9c2b
LCC		 1845#endif
1846
9f1ba906
JM		 1847static int ieee80211_change_bss(struct wiphy *wiphy,
1848 struct net_device *dev,
1849 struct bss_parameters *params)
1850{
55de908a 1851 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
57fbcce3 1852 enum nl80211_band band;
9f1ba906
JM		 1853 u32 changed = 0;
1854
7ca133bc 1855 if (!sdata_dereference(sdata->u.ap.beacon, sdata))
55de908a
JB		 1856 return -ENOENT;
1857
1858 band = ieee80211_get_sdata_band(sdata);
9f1ba906 1859
9f1ba906 1860 if (params->use_cts_prot >= 0) {
bda3933a 1861 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1862 changed |= BSS_CHANGED_ERP_CTS_PROT;
1863 }
1864 if (params->use_short_preamble >= 0) {
bda3933a 1865 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1866 params->use_short_preamble;
1867 changed |= BSS_CHANGED_ERP_PREAMBLE;
1868 }
43d35343
FF		 1869
1870 if (!sdata->vif.bss_conf.use_short_slot &&
57fbcce3 1871 band == NL80211_BAND_5GHZ) {
43d35343
FF		 1872 sdata->vif.bss_conf.use_short_slot = true;
1873 changed |= BSS_CHANGED_ERP_SLOT;
1874 }
1875
9f1ba906 1876 if (params->use_short_slot_time >= 0) {
bda3933a 1877 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1878 params->use_short_slot_time;
1879 changed |= BSS_CHANGED_ERP_SLOT;
1880 }
1881
90c97a04 1882 if (params->basic_rates) {
2103dec1
SW		 1883 ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef,
1884 wiphy->bands[band],
1885 params->basic_rates,
1886 params->basic_rates_len,
1887 &sdata->vif.bss_conf.basic_rates);
90c97a04
JM		 1888 changed |= BSS_CHANGED_BASIC_RATES;
1889 }
1890
7b7b5e56
FF		 1891 if (params->ap_isolate >= 0) {
1892 if (params->ap_isolate)
1893 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1894 else
1895 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
49ddf8e6 1896 ieee80211_check_fast_rx_iface(sdata);
7b7b5e56
FF		 1897 }
1898
80d7e403
HS		 1899 if (params->ht_opmode >= 0) {
1900 sdata->vif.bss_conf.ht_operation_mode =
1901 (u16) params->ht_opmode;
1902 changed |= BSS_CHANGED_HT;
1903 }
1904
339afbf4 1905 if (params->p2p_ctwindow >= 0) {
67baf663
JD		 1906 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1907 ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
1908 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1909 params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK;
339afbf4
JB		 1910 changed |= BSS_CHANGED_P2P_PS;
1911 }
1912
67baf663
JD		 1913 if (params->p2p_opp_ps > 0) {
1914 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |=
1915 IEEE80211_P2P_OPPPS_ENABLE_BIT;
1916 changed |= BSS_CHANGED_P2P_PS;
1917 } else if (params->p2p_opp_ps == 0) {
1918 sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &=
1919 ~IEEE80211_P2P_OPPPS_ENABLE_BIT;
339afbf4
JB		 1920 changed |= BSS_CHANGED_P2P_PS;
1921 }
1922
9f1ba906
JM		 1923 ieee80211_bss_info_change_notify(sdata, changed);
1924
1925 return 0;
1926}
1927
31888487 1928static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1929 struct net_device *dev,
31888487
JM		 1930 struct ieee80211_txq_params *params)
1931{
1932 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1933 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1934 struct ieee80211_tx_queue_params p;
1935
1936 if (!local->ops->conf_tx)
1937 return -EOPNOTSUPP;
1938
54bcbc69
JB		 1939 if (local->hw.queues < IEEE80211_NUM_ACS)
1940 return -EOPNOTSUPP;
1941
31888487
JM		 1942 memset(&p, 0, sizeof(p));
1943 p.aifs = params->aifs;
1944 p.cw_max = params->cwmax;
1945 p.cw_min = params->cwmin;
1946 p.txop = params->txop;
ab13315a
KV		 1947
1948 /*
1949 * Setting tx queue params disables u-apsd because it's only
1950 * called in master mode.
1951 */
1952 p.uapsd = false;
1953
a3304b0a
JB		 1954 sdata->tx_conf[params->ac] = p;
1955 if (drv_conf_tx(local, sdata, params->ac, &p)) {
0fb9a9ec 1956 wiphy_debug(local->hw.wiphy,
a3304b0a
JB		 1957 "failed to set TX queue parameters for AC %d\n",
1958 params->ac);
31888487
JM		 1959 return -EINVAL;
1960 }
1961
7d25745d
JB		 1962 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1963
31888487
JM		 1964 return 0;
1965}
1966
665af4fc 1967#ifdef CONFIG_PM
ff1b6e69
JB		 1968static int ieee80211_suspend(struct wiphy *wiphy,
1969 struct cfg80211_wowlan *wowlan)
665af4fc 1970{
eecc4800 1971 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1972}
1973
1974static int ieee80211_resume(struct wiphy *wiphy)
1975{
1976 return __ieee80211_resume(wiphy_priv(wiphy));
1977}
1978#else
1979#define ieee80211_suspend NULL
1980#define ieee80211_resume NULL
1981#endif
1982
2a519311 1983static int ieee80211_scan(struct wiphy *wiphy,
2a519311
JB		 1984 struct cfg80211_scan_request *req)
1985{
fd014284
JB		 1986 struct ieee80211_sub_if_data *sdata;
1987
1988 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
2a519311 1989
2ca27bcf
JB		 1990 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1991 case NL80211_IFTYPE_STATION:
1992 case NL80211_IFTYPE_ADHOC:
1993 case NL80211_IFTYPE_MESH_POINT:
1994 case NL80211_IFTYPE_P2P_CLIENT:
f142c6b9 1995 case NL80211_IFTYPE_P2P_DEVICE:
2ca27bcf
JB		 1996 break;
1997 case NL80211_IFTYPE_P2P_GO:
1998 if (sdata->local->ops->hw_scan)
1999 break;
e9d7732e
JB		 2000 /*
2001 * FIXME: implement NoA while scanning in software,
2002 * for now fall through to allow scanning only when
2003 * beaconing hasn't been configured yet
2004 */
2ca27bcf 2005 case NL80211_IFTYPE_AP:
5c95b940
AQ		 2006 /*
2007 * If the scan has been forced (and the driver supports
2008 * forcing), don't care about being beaconing already.
2009 * This will create problems to the attached stations (e.g. all
2010 * the frames sent while scanning on other channel will be
2011 * lost)
2012 */
2013 if (sdata->u.ap.beacon &&
2014 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
2015 !(req->flags & NL80211_SCAN_FLAG_AP)))
2ca27bcf
JB		 2016 return -EOPNOTSUPP;
2017 break;
2018 default:
2019 return -EOPNOTSUPP;
2020 }
2a519311
JB		 2021
2022 return ieee80211_request_scan(sdata, req);
2023}
2024
91f123f2
VK		 2025static void ieee80211_abort_scan(struct wiphy *wiphy, struct wireless_dev *wdev)
2026{
2027 ieee80211_scan_cancel(wiphy_priv(wiphy));
2028}
2029
79f460ca
LC		 2030static int
2031ieee80211_sched_scan_start(struct wiphy *wiphy,
2032 struct net_device *dev,
2033 struct cfg80211_sched_scan_request *req)
2034{
2035 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2036
2037 if (!sdata->local->ops->sched_scan_start)
2038 return -EOPNOTSUPP;
2039
2040 return ieee80211_request_sched_scan_start(sdata, req);
2041}
2042
2043static int
85a9994a 2044ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca 2045{
0d440ea2 2046 struct ieee80211_local *local = wiphy_priv(wiphy);
79f460ca 2047
0d440ea2 2048 if (!local->ops->sched_scan_stop)
79f460ca
LC		 2049 return -EOPNOTSUPP;
2050
0d440ea2 2051 return ieee80211_request_sched_scan_stop(local);
79f460ca
LC		 2052}
2053
636a5d36
JM		 2054static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
2055 struct cfg80211_auth_request *req)
2056{
77fdaa12 2057 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2058}
2059
2060static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
2061 struct cfg80211_assoc_request *req)
2062{
77fdaa12 2063 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2064}
2065
2066static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2067 struct cfg80211_deauth_request *req)
636a5d36 2068{
63c9c5e7 2069 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2070}
2071
2072static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
63c9c5e7 2073 struct cfg80211_disassoc_request *req)
636a5d36 2074{
63c9c5e7 2075 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 2076}
2077
af8cdcd8
JB		 2078static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
2079 struct cfg80211_ibss_params *params)
2080{
55de908a 2081 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
af8cdcd8
JB		 2082}
2083
2084static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
2085{
55de908a 2086 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
af8cdcd8
JB		 2087}
2088
239281f8
RL		 2089static int ieee80211_join_ocb(struct wiphy *wiphy, struct net_device *dev,
2090 struct ocb_setup *setup)
2091{
2092 return ieee80211_ocb_join(IEEE80211_DEV_TO_SUB_IF(dev), setup);
2093}
2094
2095static int ieee80211_leave_ocb(struct wiphy *wiphy, struct net_device *dev)
2096{
2097 return ieee80211_ocb_leave(IEEE80211_DEV_TO_SUB_IF(dev));
2098}
2099
391e53e3 2100static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
57fbcce3 2101 int rate[NUM_NL80211_BANDS])
391e53e3
AQ		 2102{
2103 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2104
9887dbf5 2105 memcpy(sdata->vif.bss_conf.mcast_rate, rate,
57fbcce3 2106 sizeof(int) * NUM_NL80211_BANDS);
391e53e3
AQ		 2107
2108 return 0;
2109}
2110
b9a5f8ca
JM		 2111static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2112{
2113 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 2114 int err;
b9a5f8ca 2115
f23a4780 2116 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
17c18bf8
JB		 2117 ieee80211_check_fast_xmit_all(local);
2118
f23a4780
AN		 2119 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2120
17c18bf8
JB		 2121 if (err) {
2122 ieee80211_check_fast_xmit_all(local);
f23a4780 2123 return err;
17c18bf8 2124 }
f23a4780
AN		 2125 }
2126
a4bcaf55
LB		 2127 if ((changed & WIPHY_PARAM_COVERAGE_CLASS) ||
2128 (changed & WIPHY_PARAM_DYN_ACK)) {
2129 s16 coverage_class;
2130
2131 coverage_class = changed & WIPHY_PARAM_COVERAGE_CLASS ?
2132 wiphy->coverage_class : -1;
2133 err = drv_set_coverage_class(local, coverage_class);
310bc676
LT		 2134
2135 if (err)
2136 return err;
2137 }
2138
b9a5f8ca 2139 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 2140 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 2141
24487981
JB		 2142 if (err)
2143 return err;
b9a5f8ca
JM		 2144 }
2145
8bc83c24
JB		 2146 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2147 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2148 return -EINVAL;
b9a5f8ca 2149 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
8bc83c24
JB		 2150 }
2151 if (changed & WIPHY_PARAM_RETRY_LONG) {
2152 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2153 return -EINVAL;
b9a5f8ca 2154 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
8bc83c24 2155 }
b9a5f8ca
JM		 2156 if (changed &
2157 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2158 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2159
2160 return 0;
2161}
2162
7643a2c3 2163static int ieee80211_set_tx_power(struct wiphy *wiphy,
c8442118 2164 struct wireless_dev *wdev,
fa61cf70 2165 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 2166{
2167 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2168 struct ieee80211_sub_if_data *sdata;
db82d8a9
LB		 2169 enum nl80211_tx_power_setting txp_type = type;
2170 bool update_txp_type = false;
7643a2c3 2171
1ea6f9c0
JB		 2172 if (wdev) {
2173 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2174
2175 switch (type) {
2176 case NL80211_TX_POWER_AUTOMATIC:
2177 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2178 txp_type = NL80211_TX_POWER_LIMITED;
1ea6f9c0
JB		 2179 break;
2180 case NL80211_TX_POWER_LIMITED:
2181 case NL80211_TX_POWER_FIXED:
2182 if (mbm < 0 || (mbm % 100))
2183 return -EOPNOTSUPP;
2184 sdata->user_power_level = MBM_TO_DBM(mbm);
2185 break;
2186 }
2187
db82d8a9
LB		 2188 if (txp_type != sdata->vif.bss_conf.txpower_type) {
2189 update_txp_type = true;
2190 sdata->vif.bss_conf.txpower_type = txp_type;
2191 }
2192
2193 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0
JB		 2194
2195 return 0;
2196 }
55de908a 2197
7643a2c3 2198 switch (type) {
fa61cf70 2199 case NL80211_TX_POWER_AUTOMATIC:
1ea6f9c0 2200 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
db82d8a9 2201 txp_type = NL80211_TX_POWER_LIMITED;
7643a2c3 2202 break;
fa61cf70 2203 case NL80211_TX_POWER_LIMITED:
fa61cf70
JO		 2204 case NL80211_TX_POWER_FIXED:
2205 if (mbm < 0 || (mbm % 100))
2206 return -EOPNOTSUPP;
fa61cf70 2207 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 2208 break;
7643a2c3
JB		 2209 }
2210
1ea6f9c0 2211 mutex_lock(&local->iflist_mtx);
db82d8a9 2212 list_for_each_entry(sdata, &local->interfaces, list) {
1ea6f9c0 2213 sdata->user_power_level = local->user_power_level;
db82d8a9
LB		 2214 if (txp_type != sdata->vif.bss_conf.txpower_type)
2215 update_txp_type = true;
2216 sdata->vif.bss_conf.txpower_type = txp_type;
2217 }
1ea6f9c0 2218 list_for_each_entry(sdata, &local->interfaces, list)
db82d8a9 2219 ieee80211_recalc_txpower(sdata, update_txp_type);
1ea6f9c0 2220 mutex_unlock(&local->iflist_mtx);
7643a2c3
JB		 2221
2222 return 0;
2223}
2224
c8442118
JB		 2225static int ieee80211_get_tx_power(struct wiphy *wiphy,
2226 struct wireless_dev *wdev,
2227 int *dbm)
7643a2c3
JB		 2228{
2229 struct ieee80211_local *local = wiphy_priv(wiphy);
1ea6f9c0 2230 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7643a2c3 2231
5b3dc42b
FF		 2232 if (local->ops->get_txpower)
2233 return drv_get_txpower(local, sdata, dbm);
2234
1ea6f9c0
JB		 2235 if (!local->use_chanctx)
2236 *dbm = local->hw.conf.power_level;
2237 else
2238 *dbm = sdata->vif.bss_conf.txpower;
7643a2c3 2239
7643a2c3
JB		 2240 return 0;
2241}
2242
ab737a4f 2243static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 2244 const u8 *addr)
ab737a4f
JB		 2245{
2246 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2247
2248 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2249
2250 return 0;
2251}
2252
1f87f7d3
JB		 2253static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2254{
2255 struct ieee80211_local *local = wiphy_priv(wiphy);
2256
2257 drv_rfkill_poll(local);
2258}
2259
aff89a9b 2260#ifdef CONFIG_NL80211_TESTMODE
fc73f11f
DS		 2261static int ieee80211_testmode_cmd(struct wiphy *wiphy,
2262 struct wireless_dev *wdev,
2263 void *data, int len)
aff89a9b
JB		 2264{
2265 struct ieee80211_local *local = wiphy_priv(wiphy);
52981cd7 2266 struct ieee80211_vif *vif = NULL;
aff89a9b
JB		 2267
2268 if (!local->ops->testmode_cmd)
2269 return -EOPNOTSUPP;
2270
52981cd7
DS		 2271 if (wdev) {
2272 struct ieee80211_sub_if_data *sdata;
2273
2274 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2275 if (sdata->flags & IEEE80211_SDATA_IN_DRIVER)
2276 vif = &sdata->vif;
2277 }
2278
2279 return local->ops->testmode_cmd(&local->hw, vif, data, len);
aff89a9b 2280}
71063f0e
WYG		 2281
2282static int ieee80211_testmode_dump(struct wiphy *wiphy,
2283 struct sk_buff *skb,
2284 struct netlink_callback *cb,
2285 void *data, int len)
2286{
2287 struct ieee80211_local *local = wiphy_priv(wiphy);
2288
2289 if (!local->ops->testmode_dump)
2290 return -EOPNOTSUPP;
2291
2292 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2293}
aff89a9b
JB		 2294#endif
2295
687da132
EG		 2296int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata,
2297 enum ieee80211_smps_mode smps_mode)
2298{
2299 struct sta_info *sta;
2300 enum ieee80211_smps_mode old_req;
687da132
EG		 2301
2302 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP))
2303 return -EINVAL;
2304
2305 if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2306 return 0;
2307
2308 old_req = sdata->u.ap.req_smps;
2309 sdata->u.ap.req_smps = smps_mode;
2310
2311 /* AUTOMATIC doesn't mean much for AP - don't allow it */
2312 if (old_req == smps_mode ||
2313 smps_mode == IEEE80211_SMPS_AUTOMATIC)
2314 return 0;
2315
2316 /* If no associated stations, there's no need to do anything */
2317 if (!atomic_read(&sdata->u.ap.num_mcast_sta)) {
2318 sdata->smps_mode = smps_mode;
2319 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2320 return 0;
2321 }
2322
2323 ht_dbg(sdata,
6a8b4adb 2324 "SMPS %d requested in AP mode, sending Action frame to %d stations\n",
687da132
EG		 2325 smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta));
2326
2327 mutex_lock(&sdata->local->sta_mtx);
7d9bb2f0
JB		 2328 list_for_each_entry(sta, &sdata->local->sta_list, list) {
2329 /*
2330 * Only stations associated to our AP and
2331 * associated VLANs
2332 */
2333 if (sta->sdata->bss != &sdata->u.ap)
2334 continue;
687da132 2335
7d9bb2f0
JB		 2336 /* This station doesn't support MIMO - skip it */
2337 if (sta_info_tx_streams(sta) == 1)
2338 continue;
687da132 2339
7d9bb2f0
JB		 2340 /*
2341 * Don't wake up a STA just to send the action frame
2342 * unless we are getting more restrictive.
2343 */
2344 if (test_sta_flag(sta, WLAN_STA_PS_STA) &&
2345 !ieee80211_smps_is_restrictive(sta->known_smps_mode,
2346 smps_mode)) {
2347 ht_dbg(sdata, "Won't send SMPS to sleeping STA %pM\n",
2348 sta->sta.addr);
2349 continue;
2350 }
687da132 2351
7d9bb2f0
JB		 2352 /*
2353 * If the STA is not authorized, wait until it gets
2354 * authorized and the action frame will be sent then.
2355 */
2356 if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2357 continue;
687da132 2358
7d9bb2f0
JB		 2359 ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr);
2360 ieee80211_send_smps_action(sdata, smps_mode, sta->sta.addr,
2361 sdata->vif.bss_conf.bssid);
687da132
EG		 2362 }
2363 mutex_unlock(&sdata->local->sta_mtx);
2364
2365 sdata->smps_mode = smps_mode;
2366 ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps);
2367
2368 return 0;
2369}
2370
2371int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata,
2372 enum ieee80211_smps_mode smps_mode)
0f78231b
JB		 2373{
2374 const u8 *ap;
2375 enum ieee80211_smps_mode old_req;
2376 int err;
d51c2ea3
AN		 2377 struct sta_info *sta;
2378 bool tdls_peer_found = false;
0f78231b 2379
8d61ffa5 2380 lockdep_assert_held(&sdata->wdev.mtx);
243e6df4 2381
687da132
EG		 2382 if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION))
2383 return -EINVAL;
2384
0f78231b
JB		 2385 old_req = sdata->u.mgd.req_smps;
2386 sdata->u.mgd.req_smps = smps_mode;
2387
2388 if (old_req == smps_mode &&
2389 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2390 return 0;
2391
2392 /*
2393 * If not associated, or current association is not an HT
04ecd257
JB		 2394 * association, there's no need to do anything, just store
2395 * the new value until we associate.
0f78231b
JB		 2396 */
2397 if (!sdata->u.mgd.associated ||
4bf88530 2398 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
0f78231b 2399 return 0;
0f78231b 2400
0c1ad2ca 2401 ap = sdata->u.mgd.associated->bssid;
0f78231b 2402
d51c2ea3
AN		 2403 rcu_read_lock();
2404 list_for_each_entry_rcu(sta, &sdata->local->sta_list, list) {
2405 if (!sta->sta.tdls || sta->sdata != sdata || !sta->uploaded ||
2406 !test_sta_flag(sta, WLAN_STA_AUTHORIZED))
2407 continue;
2408
2409 tdls_peer_found = true;
2410 break;
2411 }
2412 rcu_read_unlock();
2413
0f78231b 2414 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
d51c2ea3 2415 if (tdls_peer_found || !sdata->u.mgd.powersave)
0f78231b 2416 smps_mode = IEEE80211_SMPS_OFF;
d51c2ea3
AN		 2417 else
2418 smps_mode = IEEE80211_SMPS_DYNAMIC;
0f78231b
JB		 2419 }
2420
2421 /* send SM PS frame to AP */
2422 err = ieee80211_send_smps_action(sdata, smps_mode,
2423 ap, ap);
2424 if (err)
2425 sdata->u.mgd.req_smps = old_req;
d51c2ea3
AN		 2426 else if (smps_mode != IEEE80211_SMPS_OFF && tdls_peer_found)
2427 ieee80211_teardown_tdls_peers(sdata);
0f78231b
JB		 2428
2429 return err;
2430}
2431
bc92afd9
JB		 2432static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2433 bool enabled, int timeout)
2434{
2435 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2436 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 2437
2d3db210 2438 if (sdata->vif.type != NL80211_IFTYPE_STATION)
e5de30c9
BP		 2439 return -EOPNOTSUPP;
2440
30686bf7 2441 if (!ieee80211_hw_check(&local->hw, SUPPORTS_PS))
bc92afd9
JB		 2442 return -EOPNOTSUPP;
2443
2444 if (enabled == sdata->u.mgd.powersave &&
ff616381 2445 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 2446 return 0;
2447
2448 sdata->u.mgd.powersave = enabled;
ff616381 2449 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 2450
0f78231b 2451 /* no change, but if automatic follow powersave */
ed405be5 2452 sdata_lock(sdata);
687da132 2453 __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps);
ed405be5 2454 sdata_unlock(sdata);
0f78231b 2455
30686bf7 2456 if (ieee80211_hw_check(&local->hw, SUPPORTS_DYNAMIC_PS))
bc92afd9
JB		 2457 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2458
4a733ef1 2459 ieee80211_recalc_ps(local);
ab095877 2460 ieee80211_recalc_ps_vif(sdata);
bc92afd9
JB		 2461
2462 return 0;
2463}
2464
a97c13c3
JO		 2465static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2466 struct net_device *dev,
2467 s32 rssi_thold, u32 rssi_hyst)
2468{
2469 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
a97c13c3
JO		 2470 struct ieee80211_vif *vif = &sdata->vif;
2471 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2472
a97c13c3
JO		 2473 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2474 rssi_hyst == bss_conf->cqm_rssi_hyst)
2475 return 0;
2476
ef9be10c
JB		 2477 if (sdata->vif.driver_flags & IEEE80211_VIF_BEACON_FILTER &&
2478 !(sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI))
2479 return -EOPNOTSUPP;
2480
a97c13c3
JO		 2481 bss_conf->cqm_rssi_thold = rssi_thold;
2482 bss_conf->cqm_rssi_hyst = rssi_hyst;
babc305e 2483 sdata->u.mgd.last_cqm_event_signal = 0;
a97c13c3
JO		 2484
2485 /* tell the driver upon association, unless already associated */
ea086359
JB		 2486 if (sdata->u.mgd.associated &&
2487 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
a97c13c3
JO		 2488 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2489
2490 return 0;
2491}
2492
9930380f
JB		 2493static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2494 struct net_device *dev,
2495 const u8 *addr,
2496 const struct cfg80211_bitrate_mask *mask)
2497{
2498 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2499 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 2500 int i, ret;
2c7e6bc9 2501
554a43d5
EP		 2502 if (!ieee80211_sdata_running(sdata))
2503 return -ENETDOWN;
2504
30686bf7 2505 if (ieee80211_hw_check(&local->hw, HAS_RATE_CONTROL)) {
bdbfd6b5
SM		 2506 ret = drv_set_bitrate_mask(local, sdata, mask);
2507 if (ret)
2508 return ret;
2509 }
9930380f 2510
57fbcce3 2511 for (i = 0; i < NUM_NL80211_BANDS; i++) {
2ffbe6d3
FF		 2512 struct ieee80211_supported_band *sband = wiphy->bands[i];
2513 int j;
2514
37eb0b16 2515 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
d1e33e65
JD		 2516 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs,
2517 sizeof(mask->control[i].ht_mcs));
b119ad6e
LB		 2518 memcpy(sdata->rc_rateidx_vht_mcs_mask[i],
2519 mask->control[i].vht_mcs,
2520 sizeof(mask->control[i].vht_mcs));
2ffbe6d3
FF		 2521
2522 sdata->rc_has_mcs_mask[i] = false;
b119ad6e 2523 sdata->rc_has_vht_mcs_mask[i] = false;
2ffbe6d3
FF		 2524 if (!sband)
2525 continue;
2526
b119ad6e 2527 for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) {
2df1b131 2528 if (~sdata->rc_rateidx_mcs_mask[i][j]) {
2ffbe6d3 2529 sdata->rc_has_mcs_mask[i] = true;
2df1b131
JB		 2530 break;
2531 }
2532 }
b119ad6e 2533
2df1b131
JB		 2534 for (j = 0; j < NL80211_VHT_NSS_MAX; j++) {
2535 if (~sdata->rc_rateidx_vht_mcs_mask[i][j]) {
b119ad6e 2536 sdata->rc_has_vht_mcs_mask[i] = true;
2ffbe6d3 2537 break;
2df1b131 2538 }
b119ad6e 2539 }
19468413 2540 }
9930380f 2541
37eb0b16 2542 return 0;
9930380f
JB		 2543}
2544
164eb02d
SW		 2545static int ieee80211_start_radar_detection(struct wiphy *wiphy,
2546 struct net_device *dev,
31559f35
JD		 2547 struct cfg80211_chan_def *chandef,
2548 u32 cac_time_ms)
164eb02d
SW		 2549{
2550 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2551 struct ieee80211_local *local = sdata->local;
164eb02d
SW		 2552 int err;
2553
34a3740d
JB		 2554 mutex_lock(&local->mtx);
2555 if (!list_empty(&local->roc_list) || local->scanning) {
2556 err = -EBUSY;
2557 goto out_unlock;
2558 }
164eb02d
SW		 2559
2560 /* whatever, but channel contexts should not complain about that one */
2561 sdata->smps_mode = IEEE80211_SMPS_OFF;
2562 sdata->needed_rx_chains = local->rx_chains;
164eb02d 2563
164eb02d
SW		 2564 err = ieee80211_vif_use_channel(sdata, chandef,
2565 IEEE80211_CHANCTX_SHARED);
164eb02d 2566 if (err)
34a3740d 2567 goto out_unlock;
164eb02d 2568
164eb02d 2569 ieee80211_queue_delayed_work(&sdata->local->hw,
31559f35
JD		 2570 &sdata->dfs_cac_timer_work,
2571 msecs_to_jiffies(cac_time_ms));
164eb02d 2572
34a3740d
JB		 2573 out_unlock:
2574 mutex_unlock(&local->mtx);
2575 return err;
164eb02d
SW		 2576}
2577
73da7d5b
SW		 2578static struct cfg80211_beacon_data *
2579cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon)
2580{
2581 struct cfg80211_beacon_data *new_beacon;
2582 u8 *pos;
2583 int len;
2584
2585 len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len +
2586 beacon->proberesp_ies_len + beacon->assocresp_ies_len +
2587 beacon->probe_resp_len;
2588
2589 new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL);
2590 if (!new_beacon)
2591 return NULL;
2592
2593 pos = (u8 *)(new_beacon + 1);
2594 if (beacon->head_len) {
2595 new_beacon->head_len = beacon->head_len;
2596 new_beacon->head = pos;
2597 memcpy(pos, beacon->head, beacon->head_len);
2598 pos += beacon->head_len;
2599 }
2600 if (beacon->tail_len) {
2601 new_beacon->tail_len = beacon->tail_len;
2602 new_beacon->tail = pos;
2603 memcpy(pos, beacon->tail, beacon->tail_len);
2604 pos += beacon->tail_len;
2605 }
2606 if (beacon->beacon_ies_len) {
2607 new_beacon->beacon_ies_len = beacon->beacon_ies_len;
2608 new_beacon->beacon_ies = pos;
2609 memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len);
2610 pos += beacon->beacon_ies_len;
2611 }
2612 if (beacon->proberesp_ies_len) {
2613 new_beacon->proberesp_ies_len = beacon->proberesp_ies_len;
2614 new_beacon->proberesp_ies = pos;
2615 memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len);
2616 pos += beacon->proberesp_ies_len;
2617 }
2618 if (beacon->assocresp_ies_len) {
2619 new_beacon->assocresp_ies_len = beacon->assocresp_ies_len;
2620 new_beacon->assocresp_ies = pos;
2621 memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len);
2622 pos += beacon->assocresp_ies_len;
2623 }
2624 if (beacon->probe_resp_len) {
2625 new_beacon->probe_resp_len = beacon->probe_resp_len;
2626 beacon->probe_resp = pos;
2627 memcpy(pos, beacon->probe_resp, beacon->probe_resp_len);
2628 pos += beacon->probe_resp_len;
2629 }
2630
2631 return new_beacon;
2632}
2633
66e01cf9 2634void ieee80211_csa_finish(struct ieee80211_vif *vif)
73da7d5b 2635{
66e01cf9 2636 struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
73da7d5b 2637
66e01cf9
LC		 2638 ieee80211_queue_work(&sdata->local->hw,
2639 &sdata->csa_finalize_work);
2640}
2641EXPORT_SYMBOL(ieee80211_csa_finish);
e487eaeb 2642
66199506
MK		 2643static int ieee80211_set_after_csa_beacon(struct ieee80211_sub_if_data *sdata,
2644 u32 *changed)
66e01cf9 2645{
66199506 2646 int err;
7578d575 2647
cd7760e6
SW		 2648 switch (sdata->vif.type) {
2649 case NL80211_IFTYPE_AP:
af296bdb
MK		 2650 err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon,
2651 NULL);
97518af1
MK		 2652 kfree(sdata->u.ap.next_beacon);
2653 sdata->u.ap.next_beacon = NULL;
2654
cd7760e6 2655 if (err < 0)
66199506
MK		 2656 return err;
2657 *changed |= err;
cd7760e6
SW		 2658 break;
2659 case NL80211_IFTYPE_ADHOC:
faf046e7
MK		 2660 err = ieee80211_ibss_finish_csa(sdata);
2661 if (err < 0)
66199506
MK		 2662 return err;
2663 *changed |= err;
cd7760e6 2664 break;
b8456a14
CYY		 2665#ifdef CONFIG_MAC80211_MESH
2666 case NL80211_IFTYPE_MESH_POINT:
2667 err = ieee80211_mesh_finish_csa(sdata);
2668 if (err < 0)
66199506
MK		 2669 return err;
2670 *changed |= err;
b8456a14
CYY		 2671 break;
2672#endif
cd7760e6
SW		 2673 default:
2674 WARN_ON(1);
66199506
MK		 2675 return -EINVAL;
2676 }
2677
2678 return 0;
2679}
2680
cf8767dd 2681static int __ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
66199506
MK		 2682{
2683 struct ieee80211_local *local = sdata->local;
2684 u32 changed = 0;
2685 int err;
2686
2687 sdata_assert_lock(sdata);
2688 lockdep_assert_held(&local->mtx);
03078de4 2689 lockdep_assert_held(&local->chanctx_mtx);
66199506 2690
03078de4
MK		 2691 /*
2692 * using reservation isn't immediate as it may be deferred until later
2693 * with multi-vif. once reservation is complete it will re-schedule the
2694 * work with no reserved_chanctx so verify chandef to check if it
2695 * completed successfully
2696 */
66199506 2697
03078de4
MK		 2698 if (sdata->reserved_chanctx) {
2699 /*
2700 * with multi-vif csa driver may call ieee80211_csa_finish()
2701 * many times while waiting for other interfaces to use their
2702 * reservations
2703 */
2704 if (sdata->reserved_ready)
2705 return 0;
2706
408b18ab 2707 return ieee80211_vif_use_reserved_context(sdata);
cd7760e6 2708 }
73da7d5b 2709
03078de4
MK		 2710 if (!cfg80211_chandef_identical(&sdata->vif.bss_conf.chandef,
2711 &sdata->csa_chandef))
2712 return -EINVAL;
2713
66199506
MK		 2714 sdata->vif.csa_active = false;
2715
2716 err = ieee80211_set_after_csa_beacon(sdata, &changed);
2717 if (err)
cf8767dd 2718 return err;
faf046e7 2719
66199506 2720 ieee80211_bss_info_change_notify(sdata, changed);
59af6928 2721
a46992b4
LC		 2722 if (sdata->csa_block_tx) {
2723 ieee80211_wake_vif_queues(local, sdata,
2724 IEEE80211_QUEUE_STOP_REASON_CSA);
2725 sdata->csa_block_tx = false;
2726 }
cf8767dd 2727
f1d65583
LC		 2728 err = drv_post_channel_switch(sdata);
2729 if (err)
2730 return err;
2731
2732 cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef);
2733
cf8767dd
MK		 2734 return 0;
2735}
2736
2737static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata)
2738{
2739 if (__ieee80211_csa_finalize(sdata)) {
2740 sdata_info(sdata, "failed to finalize CSA, disconnecting\n");
2741 cfg80211_stop_iface(sdata->local->hw.wiphy, &sdata->wdev,
2742 GFP_KERNEL);
2743 }
66e01cf9
LC		 2744}
2745
2746void ieee80211_csa_finalize_work(struct work_struct *work)
2747{
2748 struct ieee80211_sub_if_data *sdata =
2749 container_of(work, struct ieee80211_sub_if_data,
2750 csa_finalize_work);
59af6928 2751 struct ieee80211_local *local = sdata->local;
66e01cf9
LC		 2752
2753 sdata_lock(sdata);
59af6928 2754 mutex_lock(&local->mtx);
03078de4 2755 mutex_lock(&local->chanctx_mtx);
59af6928 2756
66e01cf9
LC		 2757 /* AP might have been stopped while waiting for the lock. */
2758 if (!sdata->vif.csa_active)
2759 goto unlock;
2760
2761 if (!ieee80211_sdata_running(sdata))
2762 goto unlock;
2763
2764 ieee80211_csa_finalize(sdata);
e487eaeb
SW		 2765
2766unlock:
03078de4 2767 mutex_unlock(&local->chanctx_mtx);
59af6928 2768 mutex_unlock(&local->mtx);
e487eaeb 2769 sdata_unlock(sdata);
73da7d5b
SW		 2770}
2771
37fa2bdd
MK		 2772static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata,
2773 struct cfg80211_csa_settings *params,
2774 u32 *changed)
73da7d5b 2775{
af296bdb 2776 struct ieee80211_csa_settings csa = {};
37fa2bdd 2777 int err;
73da7d5b 2778
73da7d5b
SW		 2779 switch (sdata->vif.type) {
2780 case NL80211_IFTYPE_AP:
cd7760e6
SW		 2781 sdata->u.ap.next_beacon =
2782 cfg80211_beacon_dup(&params->beacon_after);
2783 if (!sdata->u.ap.next_beacon)
2784 return -ENOMEM;
2785
66e01cf9
LC		 2786 /*
2787 * With a count of 0, we don't have to wait for any
2788 * TBTT before switching, so complete the CSA
2789 * immediately. In theory, with a count == 1 we
2790 * should delay the switch until just before the next
2791 * TBTT, but that would complicate things so we switch
2792 * immediately too. If we would delay the switch
2793 * until the next TBTT, we would have to set the probe
2794 * response here.
2795 *
2796 * TODO: A channel switch with count <= 1 without
2797 * sending a CSA action frame is kind of useless,
2798 * because the clients won't know we're changing
2799 * channels. The action frame must be implemented
2800 * either here or in the userspace.
2801 */
2802 if (params->count <= 1)
2803 break;
2804
0d06d9ba
AO		 2805 if ((params->n_counter_offsets_beacon >
2806 IEEE80211_MAX_CSA_COUNTERS_NUM) ||
2807 (params->n_counter_offsets_presp >
2808 IEEE80211_MAX_CSA_COUNTERS_NUM))
2809 return -EINVAL;
9a774c78 2810
af296bdb
MK		 2811 csa.counter_offsets_beacon = params->counter_offsets_beacon;
2812 csa.counter_offsets_presp = params->counter_offsets_presp;
2813 csa.n_counter_offsets_beacon = params->n_counter_offsets_beacon;
2814 csa.n_counter_offsets_presp = params->n_counter_offsets_presp;
2815 csa.count = params->count;
9a774c78 2816
af296bdb 2817 err = ieee80211_assign_beacon(sdata, &params->beacon_csa, &csa);
cd7760e6
SW		 2818 if (err < 0) {
2819 kfree(sdata->u.ap.next_beacon);
2820 return err;
2821 }
37fa2bdd 2822 *changed |= err;
66e01cf9 2823
cd7760e6
SW		 2824 break;
2825 case NL80211_IFTYPE_ADHOC:
2826 if (!sdata->vif.bss_conf.ibss_joined)
2827 return -EINVAL;
2828
2829 if (params->chandef.width != sdata->u.ibss.chandef.width)
2830 return -EINVAL;
2831
2832 switch (params->chandef.width) {
2833 case NL80211_CHAN_WIDTH_40:
2834 if (cfg80211_get_chandef_type(&params->chandef) !=
2835 cfg80211_get_chandef_type(&sdata->u.ibss.chandef))
2836 return -EINVAL;
2837 case NL80211_CHAN_WIDTH_5:
2838 case NL80211_CHAN_WIDTH_10:
2839 case NL80211_CHAN_WIDTH_20_NOHT:
2840 case NL80211_CHAN_WIDTH_20:
2841 break;
2842 default:
2843 return -EINVAL;
2844 }
2845
2846 /* changes into another band are not supported */
2847 if (sdata->u.ibss.chandef.chan->band !=
2848 params->chandef.chan->band)
2849 return -EINVAL;
2850
66e01cf9
LC		 2851 /* see comments in the NL80211_IFTYPE_AP block */
2852 if (params->count > 1) {
2853 err = ieee80211_ibss_csa_beacon(sdata, params);
2854 if (err < 0)
2855 return err;
37fa2bdd 2856 *changed |= err;
66e01cf9
LC		 2857 }
2858
2859 ieee80211_send_action_csa(sdata, params);
2860
73da7d5b 2861 break;
c6da674a 2862#ifdef CONFIG_MAC80211_MESH
37fa2bdd
MK		 2863 case NL80211_IFTYPE_MESH_POINT: {
2864 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c6da674a 2865
c6da674a
CYY		 2866 if (params->chandef.width != sdata->vif.bss_conf.chandef.width)
2867 return -EINVAL;
2868
2869 /* changes into another band are not supported */
2870 if (sdata->vif.bss_conf.chandef.chan->band !=
2871 params->chandef.chan->band)
2872 return -EINVAL;
2873
c782bf8c 2874 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) {
0cb4d4dc 2875 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT;
c782bf8c
CYY		 2876 if (!ifmsh->pre_value)
2877 ifmsh->pre_value = 1;
2878 else
2879 ifmsh->pre_value++;
2880 }
0cb4d4dc 2881
66e01cf9
LC		 2882 /* see comments in the NL80211_IFTYPE_AP block */
2883 if (params->count > 1) {
2884 err = ieee80211_mesh_csa_beacon(sdata, params);
2885 if (err < 0) {
2886 ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE;
2887 return err;
2888 }
37fa2bdd 2889 *changed |= err;
3f718fd8 2890 }
66e01cf9
LC		 2891
2892 if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT)
2893 ieee80211_send_action_csa(sdata, params);
2894
c6da674a 2895 break;
37fa2bdd 2896 }
c6da674a 2897#endif
73da7d5b
SW		 2898 default:
2899 return -EOPNOTSUPP;
2900 }
2901
37fa2bdd
MK		 2902 return 0;
2903}
2904
f29f58a9
LC		 2905static int
2906__ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
2907 struct cfg80211_csa_settings *params)
37fa2bdd
MK		 2908{
2909 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2910 struct ieee80211_local *local = sdata->local;
6d027bcc 2911 struct ieee80211_channel_switch ch_switch;
2b32713d 2912 struct ieee80211_chanctx_conf *conf;
37fa2bdd 2913 struct ieee80211_chanctx *chanctx;
b08cc24e
JB		 2914 u32 changed = 0;
2915 int err;
37fa2bdd
MK		 2916
2917 sdata_assert_lock(sdata);
59af6928 2918 lockdep_assert_held(&local->mtx);
37fa2bdd
MK		 2919
2920 if (!list_empty(&local->roc_list) || local->scanning)
2921 return -EBUSY;
2922
2923 if (sdata->wdev.cac_started)
2924 return -EBUSY;
2925
2926 if (cfg80211_chandef_identical(&params->chandef,
2927 &sdata->vif.bss_conf.chandef))
2928 return -EINVAL;
2929
03078de4
MK		 2930 /* don't allow another channel switch if one is already active. */
2931 if (sdata->vif.csa_active)
2932 return -EBUSY;
2933
2b32713d
MK		 2934 mutex_lock(&local->chanctx_mtx);
2935 conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
2936 lockdep_is_held(&local->chanctx_mtx));
2937 if (!conf) {
03078de4
MK		 2938 err = -EBUSY;
2939 goto out;
37fa2bdd
MK		 2940 }
2941
2b32713d 2942 chanctx = container_of(conf, struct ieee80211_chanctx, conf);
03078de4
MK		 2943 if (!chanctx) {
2944 err = -EBUSY;
2945 goto out;
37fa2bdd 2946 }
37fa2bdd 2947
000baa5d
LC		 2948 ch_switch.timestamp = 0;
2949 ch_switch.device_timestamp = 0;
2950 ch_switch.block_tx = params->block_tx;
2951 ch_switch.chandef = params->chandef;
2952 ch_switch.count = params->count;
2953
6d027bcc
LC		 2954 err = drv_pre_channel_switch(sdata, &ch_switch);
2955 if (err)
2956 goto out;
2957
03078de4
MK		 2958 err = ieee80211_vif_reserve_chanctx(sdata, &params->chandef,
2959 chanctx->mode,
2960 params->radar_required);
2961 if (err)
2962 goto out;
37fa2bdd 2963
03078de4
MK		 2964 /* if reservation is invalid then this will fail */
2965 err = ieee80211_check_combinations(sdata, NULL, chanctx->mode, 0);
2966 if (err) {
2967 ieee80211_vif_unreserve_chanctx(sdata);
2968 goto out;
2969 }
37fa2bdd
MK		 2970
2971 err = ieee80211_set_csa_beacon(sdata, params, &changed);
03078de4
MK		 2972 if (err) {
2973 ieee80211_vif_unreserve_chanctx(sdata);
2974 goto out;
2975 }
37fa2bdd 2976
33787fc4 2977 sdata->csa_chandef = params->chandef;
59af6928 2978 sdata->csa_block_tx = params->block_tx;
73da7d5b
SW		 2979 sdata->vif.csa_active = true;
2980
59af6928 2981 if (sdata->csa_block_tx)
a46992b4
LC		 2982 ieee80211_stop_vif_queues(local, sdata,
2983 IEEE80211_QUEUE_STOP_REASON_CSA);
59af6928 2984
2f457293
LC		 2985 cfg80211_ch_switch_started_notify(sdata->dev, &sdata->csa_chandef,
2986 params->count);
2987
66e01cf9
LC		 2988 if (changed) {
2989 ieee80211_bss_info_change_notify(sdata, changed);
2990 drv_channel_switch_beacon(sdata, &params->chandef);
2991 } else {
2992 /* if the beacon didn't change, we can finalize immediately */
2993 ieee80211_csa_finalize(sdata);
2994 }
73da7d5b 2995
03078de4
MK		 2996out:
2997 mutex_unlock(&local->chanctx_mtx);
2998 return err;
73da7d5b
SW		 2999}
3000
59af6928
MK		 3001int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev,
3002 struct cfg80211_csa_settings *params)
3003{
3004 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3005 struct ieee80211_local *local = sdata->local;
3006 int err;
3007
3008 mutex_lock(&local->mtx);
3009 err = __ieee80211_channel_switch(wiphy, dev, params);
3010 mutex_unlock(&local->mtx);
3011
3012 return err;
3013}
3014
a2fcfccb
JB		 3015u64 ieee80211_mgmt_tx_cookie(struct ieee80211_local *local)
3016{
3017 lockdep_assert_held(&local->mtx);
3018
3019 local->roc_cookie_counter++;
3020
3021 /* wow, you wrapped 64 bits ... more likely a bug */
3022 if (WARN_ON(local->roc_cookie_counter == 0))
3023 local->roc_cookie_counter++;
3024
3025 return local->roc_cookie_counter;
3026}
3027
5ee00dbd
JB		 3028int ieee80211_attach_ack_skb(struct ieee80211_local *local, struct sk_buff *skb,
3029 u64 *cookie, gfp_t gfp)
3b79af97
JB		 3030{
3031 unsigned long spin_flags;
3032 struct sk_buff *ack_skb;
3033 int id;
3034
3035 ack_skb = skb_copy(skb, gfp);
3036 if (!ack_skb)
5ee00dbd 3037 return -ENOMEM;
3b79af97
JB		 3038
3039 spin_lock_irqsave(&local->ack_status_lock, spin_flags);
3040 id = idr_alloc(&local->ack_status_frames, ack_skb,
3041 1, 0x10000, GFP_ATOMIC);
3042 spin_unlock_irqrestore(&local->ack_status_lock, spin_flags);
3043
3044 if (id < 0) {
3045 kfree_skb(ack_skb);
5ee00dbd 3046 return -ENOMEM;
3b79af97
JB		 3047 }
3048
3049 IEEE80211_SKB_CB(skb)->ack_frame_id = id;
3050
3051 *cookie = ieee80211_mgmt_tx_cookie(local);
3052 IEEE80211_SKB_CB(ack_skb)->ack.cookie = *cookie;
3053
5ee00dbd 3054 return 0;
3b79af97
JB		 3055}
3056
7be5086d 3057static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
71bbc994 3058 struct wireless_dev *wdev,
7be5086d
JB		 3059 u16 frame_type, bool reg)
3060{
3061 struct ieee80211_local *local = wiphy_priv(wiphy);
1b09b556 3062 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
7be5086d 3063
6abe0563 3064 switch (frame_type) {
6abe0563 3065 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
1b09b556 3066 if (reg) {
6abe0563 3067 local->probe_req_reg++;
1b09b556
AO		 3068 sdata->vif.probe_req_reg++;
3069 } else {
3070 if (local->probe_req_reg)
3071 local->probe_req_reg--;
3072
3073 if (sdata->vif.probe_req_reg)
3074 sdata->vif.probe_req_reg--;
3075 }
7be5086d 3076
35f5149e
FF		 3077 if (!local->open_count)
3078 break;
3079
1b09b556
AO		 3080 if (sdata->vif.probe_req_reg == 1)
3081 drv_config_iface_filter(local, sdata, FIF_PROBE_REQ,
3082 FIF_PROBE_REQ);
3083 else if (sdata->vif.probe_req_reg == 0)
3084 drv_config_iface_filter(local, sdata, 0,
3085 FIF_PROBE_REQ);
3086
3087 ieee80211_configure_filter(local);
6abe0563
WH		 3088 break;
3089 default:
3090 break;
3091 }
7be5086d
JB		 3092}
3093
15d96753
BR		 3094static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
3095{
3096 struct ieee80211_local *local = wiphy_priv(wiphy);
3097
3098 if (local->started)
3099 return -EOPNOTSUPP;
3100
3101 return drv_set_antenna(local, tx_ant, rx_ant);
3102}
3103
3104static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
3105{
3106 struct ieee80211_local *local = wiphy_priv(wiphy);
3107
3108 return drv_get_antenna(local, tx_ant, rx_ant);
3109}
3110
c68f4b89
JB		 3111static int ieee80211_set_rekey_data(struct wiphy *wiphy,
3112 struct net_device *dev,
3113 struct cfg80211_gtk_rekey_data *data)
3114{
3115 struct ieee80211_local *local = wiphy_priv(wiphy);
3116 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3117
3118 if (!local->ops->set_rekey_data)
3119 return -EOPNOTSUPP;
3120
3121 drv_set_rekey_data(local, sdata, data);
3122
3123 return 0;
3124}
3125
06500736
JB		 3126static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3127 const u8 *peer, u64 *cookie)
3128{
3129 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3130 struct ieee80211_local *local = sdata->local;
3131 struct ieee80211_qos_hdr *nullfunc;
5ee00dbd 3132 struct sk_buff *skb;
06500736
JB		 3133 int size = sizeof(*nullfunc);
3134 __le16 fc;
3135 bool qos;
3136 struct ieee80211_tx_info *info;
3137 struct sta_info *sta;
55de908a 3138 struct ieee80211_chanctx_conf *chanctx_conf;
57fbcce3 3139 enum nl80211_band band;
3b79af97
JB		 3140 int ret;
3141
3142 /* the lock is needed to assign the cookie later */
3143 mutex_lock(&local->mtx);
06500736
JB		 3144
3145 rcu_read_lock();
55de908a
JB		 3146 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3147 if (WARN_ON(!chanctx_conf)) {
3b79af97
JB		 3148 ret = -EINVAL;
3149 goto unlock;
55de908a 3150 }
4bf88530 3151 band = chanctx_conf->def.chan->band;
03bb7f42 3152 sta = sta_info_get_bss(sdata, peer);
b4487c2d 3153 if (sta) {
a74a8c84 3154 qos = sta->sta.wme;
b4487c2d 3155 } else {
3b79af97
JB		 3156 ret = -ENOLINK;
3157 goto unlock;
b4487c2d 3158 }
06500736
JB		 3159
3160 if (qos) {
3161 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3162 IEEE80211_STYPE_QOS_NULLFUNC |
3163 IEEE80211_FCTL_FROMDS);
3164 } else {
3165 size -= 2;
3166 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3167 IEEE80211_STYPE_NULLFUNC |
3168 IEEE80211_FCTL_FROMDS);
3169 }
3170
3171 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
55de908a 3172 if (!skb) {
3b79af97
JB		 3173 ret = -ENOMEM;
3174 goto unlock;
55de908a 3175 }
06500736
JB		 3176
3177 skb->dev = dev;
3178
3179 skb_reserve(skb, local->hw.extra_tx_headroom);
3180
3181 nullfunc = (void *) skb_put(skb, size);
3182 nullfunc->frame_control = fc;
3183 nullfunc->duration_id = 0;
3184 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3185 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3186 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3187 nullfunc->seq_ctrl = 0;
3188
3189 info = IEEE80211_SKB_CB(skb);
3190
3191 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3192 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
73c4e195 3193 info->band = band;
06500736
JB		 3194
3195 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3196 skb->priority = 7;
3197 if (qos)
3198 nullfunc->qos_ctrl = cpu_to_le16(7);
3199
5ee00dbd
JB		 3200 ret = ieee80211_attach_ack_skb(local, skb, cookie, GFP_ATOMIC);
3201 if (ret) {
3b79af97 3202 kfree_skb(skb);
3b79af97
JB		 3203 goto unlock;
3204 }
3205
06500736 3206 local_bh_disable();
7c10770f 3207 ieee80211_xmit(sdata, sta, skb);
06500736 3208 local_bh_enable();
3b79af97
JB		 3209
3210 ret = 0;
3211unlock:
55de908a 3212 rcu_read_unlock();
3b79af97 3213 mutex_unlock(&local->mtx);
06500736 3214
3b79af97 3215 return ret;
06500736
JB		 3216}
3217
683b6d3b
JB		 3218static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3219 struct wireless_dev *wdev,
3220 struct cfg80211_chan_def *chandef)
5b7ccaf3 3221{
55de908a 3222 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
cb601ffa 3223 struct ieee80211_local *local = wiphy_priv(wiphy);
55de908a 3224 struct ieee80211_chanctx_conf *chanctx_conf;
683b6d3b 3225 int ret = -ENODATA;
55de908a
JB		 3226
3227 rcu_read_lock();
feda3027
JB		 3228 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3229 if (chanctx_conf) {
c12bc488 3230 *chandef = sdata->vif.bss_conf.chandef;
feda3027
JB		 3231 ret = 0;
3232 } else if (local->open_count > 0 &&
3233 local->open_count == local->monitors &&
3234 sdata->vif.type == NL80211_IFTYPE_MONITOR) {
3235 if (local->use_chanctx)
3236 *chandef = local->monitor_chandef;
3237 else
675a0b04 3238 *chandef = local->_oper_chandef;
683b6d3b 3239 ret = 0;
55de908a
JB		 3240 }
3241 rcu_read_unlock();
5b7ccaf3 3242
683b6d3b 3243 return ret;
5b7ccaf3
JB		 3244}
3245
6d52563f
JB		 3246#ifdef CONFIG_PM
3247static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3248{
3249 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3250}
3251#endif
3252
32db6b54
KP		 3253static int ieee80211_set_qos_map(struct wiphy *wiphy,
3254 struct net_device *dev,
3255 struct cfg80211_qos_map *qos_map)
3256{
3257 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3258 struct mac80211_qos_map *new_qos_map, *old_qos_map;
3259
3260 if (qos_map) {
3261 new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL);
3262 if (!new_qos_map)
3263 return -ENOMEM;
3264 memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map));
3265 } else {
3266 /* A NULL qos_map was passed to disable QoS mapping */
3267 new_qos_map = NULL;
3268 }
3269
194ff52d 3270 old_qos_map = sdata_dereference(sdata->qos_map, sdata);
32db6b54
KP		 3271 rcu_assign_pointer(sdata->qos_map, new_qos_map);
3272 if (old_qos_map)
3273 kfree_rcu(old_qos_map, rcu_head);
3274
3275 return 0;
3276}
3277
3b1700bd
JM		 3278static int ieee80211_set_ap_chanwidth(struct wiphy *wiphy,
3279 struct net_device *dev,
3280 struct cfg80211_chan_def *chandef)
3281{
3282 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3283 int ret;
3284 u32 changed = 0;
3285
3286 ret = ieee80211_vif_change_bandwidth(sdata, chandef, &changed);
3287 if (ret == 0)
3288 ieee80211_bss_info_change_notify(sdata, changed);
3289
3290 return ret;
3291}
3292
02219b3a
JB		 3293static int ieee80211_add_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3294 u8 tsid, const u8 *peer, u8 up,
3295 u16 admitted_time)
3296{
3297 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3298 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3299 int ac = ieee802_1d_to_ac[up];
3300
3301 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3302 return -EOPNOTSUPP;
3303
3304 if (!(sdata->wmm_acm & BIT(up)))
3305 return -EINVAL;
3306
3307 if (ifmgd->tx_tspec[ac].admitted_time)
3308 return -EBUSY;
3309
3310 if (admitted_time) {
3311 ifmgd->tx_tspec[ac].admitted_time = 32 * admitted_time;
3312 ifmgd->tx_tspec[ac].tsid = tsid;
3313 ifmgd->tx_tspec[ac].up = up;
3314 }
3315
3316 return 0;
3317}
3318
3319static int ieee80211_del_tx_ts(struct wiphy *wiphy, struct net_device *dev,
3320 u8 tsid, const u8 *peer)
3321{
3322 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3323 struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
3324 struct ieee80211_local *local = wiphy_priv(wiphy);
3325 int ac;
3326
3327 for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) {
3328 struct ieee80211_sta_tx_tspec *tx_tspec = &ifmgd->tx_tspec[ac];
3329
3330 /* skip unused entries */
3331 if (!tx_tspec->admitted_time)
3332 continue;
3333
3334 if (tx_tspec->tsid != tsid)
3335 continue;
3336
3337 /* due to this new packets will be reassigned to non-ACM ACs */
3338 tx_tspec->up = -1;
3339
3340 /* Make sure that all packets have been sent to avoid to
3341 * restore the QoS params on packets that are still on the
3342 * queues.
3343 */
3344 synchronize_net();
3b24f4c6 3345 ieee80211_flush_queues(local, sdata, false);
02219b3a
JB		 3346
3347 /* restore the normal QoS parameters
3348 * (unconditionally to avoid races)
3349 */
3350 tx_tspec->action = TX_TSPEC_ACTION_STOP_DOWNGRADE;
3351 tx_tspec->downgraded = false;
3352 ieee80211_sta_handle_tspec_ac_params(sdata);
3353
3354 /* finally clear all the data */
3355 memset(tx_tspec, 0, sizeof(*tx_tspec));
3356
3357 return 0;
3358 }
3359
3360 return -ENOENT;
3361}
3362
8a47cea7 3363const struct cfg80211_ops mac80211_config_ops = {
f0706e82
JB		 3364 .add_virtual_intf = ieee80211_add_iface,
3365 .del_virtual_intf = ieee80211_del_iface,
42613db7 3366 .change_virtual_intf = ieee80211_change_iface,
f142c6b9
JB		 3367 .start_p2p_device = ieee80211_start_p2p_device,
3368 .stop_p2p_device = ieee80211_stop_p2p_device,
e8cbb4cb
JB		 3369 .add_key = ieee80211_add_key,
3370 .del_key = ieee80211_del_key,
62da92fb 3371 .get_key = ieee80211_get_key,
e8cbb4cb 3372 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 3373 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
8860020e
JB		 3374 .start_ap = ieee80211_start_ap,
3375 .change_beacon = ieee80211_change_beacon,
3376 .stop_ap = ieee80211_stop_ap,
4fd6931e
JB		 3377 .add_station = ieee80211_add_station,
3378 .del_station = ieee80211_del_station,
3379 .change_station = ieee80211_change_station,
7bbdd2d9 3380 .get_station = ieee80211_get_station,
c5dd9c2b 3381 .dump_station = ieee80211_dump_station,
1289723e 3382 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 3383#ifdef CONFIG_MAC80211_MESH
3384 .add_mpath = ieee80211_add_mpath,
3385 .del_mpath = ieee80211_del_mpath,
3386 .change_mpath = ieee80211_change_mpath,
3387 .get_mpath = ieee80211_get_mpath,
3388 .dump_mpath = ieee80211_dump_mpath,
a2db2ed3
HR		 3389 .get_mpp = ieee80211_get_mpp,
3390 .dump_mpp = ieee80211_dump_mpp,
24bdd9f4
JC		 3391 .update_mesh_config = ieee80211_update_mesh_config,
3392 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 3393 .join_mesh = ieee80211_join_mesh,
3394 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 3395#endif
239281f8
RL		 3396 .join_ocb = ieee80211_join_ocb,
3397 .leave_ocb = ieee80211_leave_ocb,
9f1ba906 3398 .change_bss = ieee80211_change_bss,
31888487 3399 .set_txq_params = ieee80211_set_txq_params,
e8c9bd5b 3400 .set_monitor_channel = ieee80211_set_monitor_channel,
665af4fc
BC		 3401 .suspend = ieee80211_suspend,
3402 .resume = ieee80211_resume,
2a519311 3403 .scan = ieee80211_scan,
91f123f2 3404 .abort_scan = ieee80211_abort_scan,
79f460ca
LC		 3405 .sched_scan_start = ieee80211_sched_scan_start,
3406 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 3407 .auth = ieee80211_auth,
3408 .assoc = ieee80211_assoc,
3409 .deauth = ieee80211_deauth,
3410 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 3411 .join_ibss = ieee80211_join_ibss,
3412 .leave_ibss = ieee80211_leave_ibss,
391e53e3 3413 .set_mcast_rate = ieee80211_set_mcast_rate,
b9a5f8ca 3414 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 3415 .set_tx_power = ieee80211_set_tx_power,
3416 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 3417 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 3418 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 3419 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 3420 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 3421 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 3422 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 3423 .remain_on_channel = ieee80211_remain_on_channel,
3424 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 3425 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 3426 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 3427 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 3428 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 3429 .set_antenna = ieee80211_set_antenna,
3430 .get_antenna = ieee80211_get_antenna,
c68f4b89 3431 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 3432 .tdls_oper = ieee80211_tdls_oper,
3433 .tdls_mgmt = ieee80211_tdls_mgmt,
a7a6bdd0
AN		 3434 .tdls_channel_switch = ieee80211_tdls_channel_switch,
3435 .tdls_cancel_channel_switch = ieee80211_tdls_cancel_channel_switch,
06500736 3436 .probe_client = ieee80211_probe_client,
b53be792 3437 .set_noack_map = ieee80211_set_noack_map,
6d52563f
JB		 3438#ifdef CONFIG_PM
3439 .set_wakeup = ieee80211_set_wakeup,
3440#endif
5b7ccaf3 3441 .get_channel = ieee80211_cfg_get_channel,
164eb02d 3442 .start_radar_detection = ieee80211_start_radar_detection,
73da7d5b 3443 .channel_switch = ieee80211_channel_switch,
32db6b54 3444 .set_qos_map = ieee80211_set_qos_map,
3b1700bd 3445 .set_ap_chanwidth = ieee80211_set_ap_chanwidth,
02219b3a
JB		 3446 .add_tx_ts = ieee80211_add_tx_ts,
3447 .del_tx_ts = ieee80211_del_tx_ts,
f0706e82 3448};
Linux kernel - Deliverables
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