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nl80211/cfg80211: WoWLAN support
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
CommitLineData
f0706e82
JB		 1/*
2 * mac80211 configuration hooks for cfg80211
3 *
026331c4 4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
f0706e82
JB		 5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
e8cbb4cb 9#include <linux/ieee80211.h>
f0706e82
JB		 10#include <linux/nl80211.h>
11#include <linux/rtnetlink.h>
5a0e3ad6 12#include <linux/slab.h>
881d966b 13#include <net/net_namespace.h>
5dfdaf58 14#include <linux/rcupdate.h>
f0706e82
JB		 15#include <net/cfg80211.h>
16#include "ieee80211_i.h"
24487981 17#include "driver-ops.h"
e0eb6859 18#include "cfg.h"
2c8dccc7 19#include "rate.h"
c5dd9c2b 20#include "mesh.h"
c5dd9c2b 21
f9e10ce4
JB		 22static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
23 enum nl80211_iftype type,
24 u32 *flags,
25 struct vif_params *params)
f0706e82
JB		 26{
27 struct ieee80211_local *local = wiphy_priv(wiphy);
8cc9a739
MW		 28 struct net_device *dev;
29 struct ieee80211_sub_if_data *sdata;
30 int err;
f0706e82 31
05c914fe 32 err = ieee80211_if_add(local, name, &dev, type, params);
f9e10ce4
JB		 33 if (err)
34 return ERR_PTR(err);
8cc9a739 35
f9e10ce4
JB		 36 if (type == NL80211_IFTYPE_MONITOR && flags) {
37 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
38 sdata->u.mntr_flags = *flags;
39 }
40
41 return dev;
f0706e82
JB		 42}
43
463d0183 44static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
f0706e82 45{
463d0183 46 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
f0706e82 47
75636525 48 return 0;
f0706e82
JB		 49}
50
e36d56b6
JB		 51static int ieee80211_change_iface(struct wiphy *wiphy,
52 struct net_device *dev,
2ec600d6
LCC		 53 enum nl80211_iftype type, u32 *flags,
54 struct vif_params *params)
42613db7 55{
9607e6b6 56 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 57 int ret;
42613db7 58
05c914fe 59 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 60 if (ret)
61 return ret;
42613db7 62
9bc383de
JB		 63 if (type == NL80211_IFTYPE_AP_VLAN &&
64 params && params->use_4addr == 0)
65 rcu_assign_pointer(sdata->u.vlan.sta, NULL);
66 else if (type == NL80211_IFTYPE_STATION &&
67 params && params->use_4addr >= 0)
68 sdata->u.mgd.use_4addr = params->use_4addr;
69
85416a4f
CL		 70 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
71 struct ieee80211_local *local = sdata->local;
72
73 if (ieee80211_sdata_running(sdata)) {
74 /*
75 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
76 * changed while the interface is up.
77 * Else we would need to add a lot of cruft
78 * to update everything:
79 * cooked_mntrs, monitor and all fif_* counters
80 * reconfigure hardware
81 */
82 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
83 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
84 return -EBUSY;
85
86 ieee80211_adjust_monitor_flags(sdata, -1);
87 sdata->u.mntr_flags = *flags;
88 ieee80211_adjust_monitor_flags(sdata, 1);
89
90 ieee80211_configure_filter(local);
91 } else {
92 /*
93 * Because the interface is down, ieee80211_do_stop
94 * and ieee80211_do_open take care of "everything"
95 * mentioned in the comment above.
96 */
97 sdata->u.mntr_flags = *flags;
98 }
99 }
f7917af9 100
42613db7
JB		 101 return 0;
102}
103
e8cbb4cb 104static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 105 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 106 struct key_params *params)
107{
26a58456 108 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
e8cbb4cb 109 struct sta_info *sta = NULL;
db4d1169 110 struct ieee80211_key *key;
3b96766f 111 int err;
e8cbb4cb 112
26a58456 113 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 114 return -ENETDOWN;
115
97359d12 116 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 117 switch (params->cipher) {
118 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 119 case WLAN_CIPHER_SUITE_TKIP:
97359d12
JB		 120 case WLAN_CIPHER_SUITE_WEP104:
121 if (IS_ERR(sdata->local->wep_tx_tfm))
122 return -EINVAL;
3cfcf6ac 123 break;
e8cbb4cb 124 default:
97359d12 125 break;
e8cbb4cb
JB		 126 }
127
97359d12
JB		 128 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
129 params->key, params->seq_len, params->seq);
1ac62ba7
BH		 130 if (IS_ERR(key))
131 return PTR_ERR(key);
db4d1169 132
e31b8213
JB		 133 if (pairwise)
134 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
135
ad0e2b5a 136 mutex_lock(&sdata->local->sta_mtx);
3b96766f 137
e8cbb4cb 138 if (mac_addr) {
0e5ded5a 139 sta = sta_info_get_bss(sdata, mac_addr);
db4d1169 140 if (!sta) {
32162a4d 141 ieee80211_key_free(sdata->local, key);
3b96766f
JB		 142 err = -ENOENT;
143 goto out_unlock;
db4d1169 144 }
e8cbb4cb
JB		 145 }
146
3ffc2a90
JB		 147 err = ieee80211_key_link(key, sdata, sta);
148 if (err)
149 ieee80211_key_free(sdata->local, key);
db4d1169 150
3b96766f 151 out_unlock:
ad0e2b5a 152 mutex_unlock(&sdata->local->sta_mtx);
3b96766f
JB		 153
154 return err;
e8cbb4cb
JB		 155}
156
157static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 158 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb
JB		 159{
160 struct ieee80211_sub_if_data *sdata;
161 struct sta_info *sta;
162 int ret;
163
164 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
165
ad0e2b5a 166 mutex_lock(&sdata->local->sta_mtx);
3b96766f 167
e8cbb4cb 168 if (mac_addr) {
3b96766f
JB		 169 ret = -ENOENT;
170
0e5ded5a 171 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 172 if (!sta)
3b96766f 173 goto out_unlock;
e8cbb4cb 174
e31b8213
JB		 175 if (pairwise) {
176 if (sta->ptk) {
177 ieee80211_key_free(sdata->local, sta->ptk);
178 ret = 0;
179 }
180 } else {
181 if (sta->gtk[key_idx]) {
182 ieee80211_key_free(sdata->local,
183 sta->gtk[key_idx]);
184 ret = 0;
185 }
3b96766f 186 }
e8cbb4cb 187
3b96766f 188 goto out_unlock;
e8cbb4cb
JB		 189 }
190
3b96766f
JB		 191 if (!sdata->keys[key_idx]) {
192 ret = -ENOENT;
193 goto out_unlock;
194 }
e8cbb4cb 195
32162a4d 196 ieee80211_key_free(sdata->local, sdata->keys[key_idx]);
db4d1169 197 WARN_ON(sdata->keys[key_idx]);
e8cbb4cb 198
3b96766f
JB		 199 ret = 0;
200 out_unlock:
ad0e2b5a 201 mutex_unlock(&sdata->local->sta_mtx);
3b96766f
JB		 202
203 return ret;
e8cbb4cb
JB		 204}
205
62da92fb 206static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 207 u8 key_idx, bool pairwise, const u8 *mac_addr,
208 void *cookie,
62da92fb
JB		 209 void (*callback)(void *cookie,
210 struct key_params *params))
211{
14db74bc 212 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 213 struct sta_info *sta = NULL;
214 u8 seq[6] = {0};
215 struct key_params params;
e31b8213 216 struct ieee80211_key *key = NULL;
62da92fb
JB		 217 u32 iv32;
218 u16 iv16;
219 int err = -ENOENT;
220
14db74bc
JB		 221 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
222
3b96766f
JB		 223 rcu_read_lock();
224
62da92fb 225 if (mac_addr) {
0e5ded5a 226 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 227 if (!sta)
228 goto out;
229
e31b8213
JB		 230 if (pairwise)
231 key = sta->ptk;
232 else if (key_idx < NUM_DEFAULT_KEYS)
233 key = sta->gtk[key_idx];
62da92fb
JB		 234 } else
235 key = sdata->keys[key_idx];
236
237 if (!key)
238 goto out;
239
240 memset(&params, 0, sizeof(params));
241
97359d12 242 params.cipher = key->conf.cipher;
62da92fb 243
97359d12
JB		 244 switch (key->conf.cipher) {
245 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 246 iv32 = key->u.tkip.tx.iv32;
247 iv16 = key->u.tkip.tx.iv16;
62da92fb 248
24487981
JB		 249 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
250 drv_get_tkip_seq(sdata->local,
251 key->conf.hw_key_idx,
252 &iv32, &iv16);
62da92fb
JB		 253
254 seq[0] = iv16 & 0xff;
255 seq[1] = (iv16 >> 8) & 0xff;
256 seq[2] = iv32 & 0xff;
257 seq[3] = (iv32 >> 8) & 0xff;
258 seq[4] = (iv32 >> 16) & 0xff;
259 seq[5] = (iv32 >> 24) & 0xff;
260 params.seq = seq;
261 params.seq_len = 6;
262 break;
97359d12 263 case WLAN_CIPHER_SUITE_CCMP:
62da92fb
JB		 264 seq[0] = key->u.ccmp.tx_pn[5];
265 seq[1] = key->u.ccmp.tx_pn[4];
266 seq[2] = key->u.ccmp.tx_pn[3];
267 seq[3] = key->u.ccmp.tx_pn[2];
268 seq[4] = key->u.ccmp.tx_pn[1];
269 seq[5] = key->u.ccmp.tx_pn[0];
270 params.seq = seq;
271 params.seq_len = 6;
272 break;
97359d12 273 case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac
JM		 274 seq[0] = key->u.aes_cmac.tx_pn[5];
275 seq[1] = key->u.aes_cmac.tx_pn[4];
276 seq[2] = key->u.aes_cmac.tx_pn[3];
277 seq[3] = key->u.aes_cmac.tx_pn[2];
278 seq[4] = key->u.aes_cmac.tx_pn[1];
279 seq[5] = key->u.aes_cmac.tx_pn[0];
280 params.seq = seq;
281 params.seq_len = 6;
282 break;
62da92fb
JB		 283 }
284
285 params.key = key->conf.key;
286 params.key_len = key->conf.keylen;
287
288 callback(cookie, &params);
289 err = 0;
290
291 out:
3b96766f 292 rcu_read_unlock();
62da92fb
JB		 293 return err;
294}
295
e8cbb4cb
JB		 296static int ieee80211_config_default_key(struct wiphy *wiphy,
297 struct net_device *dev,
dbd2fd65
JB		 298 u8 key_idx, bool uni,
299 bool multi)
e8cbb4cb 300{
ad0e2b5a 301 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 302
f7e0104c 303 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 304
305 return 0;
306}
307
3cfcf6ac
JM		 308static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
309 struct net_device *dev,
310 u8 key_idx)
311{
66c52421 312 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 313
3cfcf6ac
JM		 314 ieee80211_set_default_mgmt_key(sdata, key_idx);
315
3cfcf6ac
JM		 316 return 0;
317}
318
3af6334c
FF		 319static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
320{
321 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
322 struct ieee80211_supported_band *sband;
323 sband = sta->local->hw.wiphy->bands[
324 sta->local->hw.conf.channel->band];
325 rate->legacy = sband->bitrates[idx].bitrate;
326 } else
327 rate->mcs = idx;
328}
329
c5dd9c2b
LCC		 330static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
331{
d0709a65 332 struct ieee80211_sub_if_data *sdata = sta->sdata;
ebe27c91 333 struct timespec uptime;
c5dd9c2b 334
f5ea9120
JB		 335 sinfo->generation = sdata->local->sta_generation;
336
c5dd9c2b
LCC		 337 sinfo->filled = STATION_INFO_INACTIVE_TIME |
338 STATION_INFO_RX_BYTES |
420e7fab 339 STATION_INFO_TX_BYTES |
98c8a60a
JM		 340 STATION_INFO_RX_PACKETS |
341 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 342 STATION_INFO_TX_RETRIES |
343 STATION_INFO_TX_FAILED |
5a5c731a 344 STATION_INFO_TX_BITRATE |
3af6334c 345 STATION_INFO_RX_BITRATE |
f4263c98 346 STATION_INFO_RX_DROP_MISC |
ebe27c91
MSS		 347 STATION_INFO_BSS_PARAM |
348 STATION_INFO_CONNECTED_TIME;
349
350 do_posix_clock_monotonic_gettime(&uptime);
351 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 352
353 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
354 sinfo->rx_bytes = sta->rx_bytes;
355 sinfo->tx_bytes = sta->tx_bytes;
98c8a60a
JM		 356 sinfo->rx_packets = sta->rx_packets;
357 sinfo->tx_packets = sta->tx_packets;
b206b4ef
BR		 358 sinfo->tx_retries = sta->tx_retry_count;
359 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 360 sinfo->rx_dropped_misc = sta->rx_dropped;
c5dd9c2b 361
19deffbe
JL		 362 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
363 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 364 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
420e7fab 365 sinfo->signal = (s8)sta->last_signal;
541a45a1 366 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab
HR		 367 }
368
369 sinfo->txrate.flags = 0;
370 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
371 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
372 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
373 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
374 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
375 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
3af6334c
FF		 376 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
377
378 sinfo->rxrate.flags = 0;
379 if (sta->last_rx_rate_flag & RX_FLAG_HT)
380 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
381 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
382 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
383 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
384 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
385 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
420e7fab 386
902acc78 387 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 388#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 389 sinfo->filled |= STATION_INFO_LLID |
390 STATION_INFO_PLID |
391 STATION_INFO_PLINK_STATE;
392
393 sinfo->llid = le16_to_cpu(sta->llid);
394 sinfo->plid = le16_to_cpu(sta->plid);
395 sinfo->plink_state = sta->plink_state;
c5dd9c2b 396#endif
902acc78 397 }
f4263c98
PS		 398
399 sinfo->bss_param.flags = 0;
400 if (sdata->vif.bss_conf.use_cts_prot)
401 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
402 if (sdata->vif.bss_conf.use_short_preamble)
403 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
404 if (sdata->vif.bss_conf.use_short_slot)
405 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
406 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
407 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
c5dd9c2b
LCC		 408}
409
410
411static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
412 int idx, u8 *mac, struct station_info *sinfo)
413{
3b53fde8 414 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
c5dd9c2b 415 struct sta_info *sta;
d0709a65
JB		 416 int ret = -ENOENT;
417
418 rcu_read_lock();
c5dd9c2b 419
3b53fde8 420 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 421 if (sta) {
422 ret = 0;
17741cdc 423 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 424 sta_set_sinfo(sta, sinfo);
425 }
c5dd9c2b 426
d0709a65 427 rcu_read_unlock();
c5dd9c2b 428
d0709a65 429 return ret;
c5dd9c2b
LCC		 430}
431
1289723e
HS		 432static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
433 int idx, struct survey_info *survey)
434{
435 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
436
1289723e
HS		 437 return drv_get_survey(local, idx, survey);
438}
439
7bbdd2d9 440static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 441 u8 *mac, struct station_info *sinfo)
7bbdd2d9 442{
abe60632 443 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
7bbdd2d9 444 struct sta_info *sta;
d0709a65 445 int ret = -ENOENT;
7bbdd2d9 446
d0709a65 447 rcu_read_lock();
7bbdd2d9 448
0e5ded5a 449 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 450 if (sta) {
451 ret = 0;
452 sta_set_sinfo(sta, sinfo);
453 }
454
455 rcu_read_unlock();
456
457 return ret;
7bbdd2d9
JB		 458}
459
5dfdaf58
JB		 460/*
461 * This handles both adding a beacon and setting new beacon info
462 */
463static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
464 struct beacon_parameters *params)
465{
466 struct beacon_data *new, *old;
467 int new_head_len, new_tail_len;
468 int size;
469 int err = -EINVAL;
470
471 old = sdata->u.ap.beacon;
472
473 /* head must not be zero-length */
474 if (params->head && !params->head_len)
475 return -EINVAL;
476
477 /*
478 * This is a kludge. beacon interval should really be part
479 * of the beacon information.
480 */
57c4d7b4
JB		 481 if (params->interval &&
482 (sdata->vif.bss_conf.beacon_int != params->interval)) {
483 sdata->vif.bss_conf.beacon_int = params->interval;
484 ieee80211_bss_info_change_notify(sdata,
485 BSS_CHANGED_BEACON_INT);
5dfdaf58
JB		 486 }
487
488 /* Need to have a beacon head if we don't have one yet */
489 if (!params->head && !old)
490 return err;
491
492 /* sorry, no way to start beaconing without dtim period */
493 if (!params->dtim_period && !old)
494 return err;
495
496 /* new or old head? */
497 if (params->head)
498 new_head_len = params->head_len;
499 else
500 new_head_len = old->head_len;
501
502 /* new or old tail? */
503 if (params->tail || !old)
504 /* params->tail_len will be zero for !params->tail */
505 new_tail_len = params->tail_len;
506 else
507 new_tail_len = old->tail_len;
508
509 size = sizeof(*new) + new_head_len + new_tail_len;
510
511 new = kzalloc(size, GFP_KERNEL);
512 if (!new)
513 return -ENOMEM;
514
515 /* start filling the new info now */
516
517 /* new or old dtim period? */
518 if (params->dtim_period)
519 new->dtim_period = params->dtim_period;
520 else
521 new->dtim_period = old->dtim_period;
522
523 /*
524 * pointers go into the block we allocated,
525 * memory is | beacon_data | head | tail |
526 */
527 new->head = ((u8 *) new) + sizeof(*new);
528 new->tail = new->head + new_head_len;
529 new->head_len = new_head_len;
530 new->tail_len = new_tail_len;
531
532 /* copy in head */
533 if (params->head)
534 memcpy(new->head, params->head, new_head_len);
535 else
536 memcpy(new->head, old->head, new_head_len);
537
538 /* copy in optional tail */
539 if (params->tail)
540 memcpy(new->tail, params->tail, new_tail_len);
541 else
542 if (old)
543 memcpy(new->tail, old->tail, new_tail_len);
544
19885c4f
JB		 545 sdata->vif.bss_conf.dtim_period = new->dtim_period;
546
5dfdaf58
JB		 547 rcu_assign_pointer(sdata->u.ap.beacon, new);
548
549 synchronize_rcu();
550
551 kfree(old);
552
2d0ddec5
JB		 553 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
554 BSS_CHANGED_BEACON);
555 return 0;
5dfdaf58
JB		 556}
557
558static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
559 struct beacon_parameters *params)
560{
14db74bc 561 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 562 struct beacon_data *old;
563
14db74bc
JB		 564 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
565
5dfdaf58
JB		 566 old = sdata->u.ap.beacon;
567
568 if (old)
569 return -EALREADY;
570
571 return ieee80211_config_beacon(sdata, params);
572}
573
574static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
575 struct beacon_parameters *params)
576{
14db74bc 577 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 578 struct beacon_data *old;
579
14db74bc
JB		 580 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
581
5dfdaf58
JB		 582 old = sdata->u.ap.beacon;
583
584 if (!old)
585 return -ENOENT;
586
587 return ieee80211_config_beacon(sdata, params);
588}
589
590static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
591{
14db74bc 592 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 593 struct beacon_data *old;
594
14db74bc
JB		 595 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
596
5dfdaf58
JB		 597 old = sdata->u.ap.beacon;
598
599 if (!old)
600 return -ENOENT;
601
602 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
603 synchronize_rcu();
604 kfree(old);
605
2d0ddec5
JB		 606 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
607 return 0;
5dfdaf58
JB		 608}
609
4fd6931e
JB		 610/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
611struct iapp_layer2_update {
612 u8 da[ETH_ALEN]; /* broadcast */
613 u8 sa[ETH_ALEN]; /* STA addr */
614 __be16 len; /* 6 */
615 u8 dsap; /* 0 */
616 u8 ssap; /* 0 */
617 u8 control;
618 u8 xid_info[3];
bc10502d 619} __packed;
4fd6931e
JB		 620
621static void ieee80211_send_layer2_update(struct sta_info *sta)
622{
623 struct iapp_layer2_update *msg;
624 struct sk_buff *skb;
625
626 /* Send Level 2 Update Frame to update forwarding tables in layer 2
627 * bridge devices */
628
629 skb = dev_alloc_skb(sizeof(*msg));
630 if (!skb)
631 return;
632 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
633
634 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
635 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
636
637 memset(msg->da, 0xff, ETH_ALEN);
17741cdc 638 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 639 msg->len = htons(6);
640 msg->dsap = 0;
641 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
642 msg->control = 0xaf; /* XID response lsb.1111F101.
643 * F=0 (no poll command; unsolicited frame) */
644 msg->xid_info[0] = 0x81; /* XID format identifier */
645 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
646 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
647
d0709a65
JB		 648 skb->dev = sta->sdata->dev;
649 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 650 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 651 netif_rx_ni(skb);
4fd6931e
JB		 652}
653
654static void sta_apply_parameters(struct ieee80211_local *local,
655 struct sta_info *sta,
656 struct station_parameters *params)
657{
f5521b13 658 unsigned long flags;
4fd6931e
JB		 659 u32 rates;
660 int i, j;
8318d78a 661 struct ieee80211_supported_band *sband;
d0709a65 662 struct ieee80211_sub_if_data *sdata = sta->sdata;
eccb8e8f 663 u32 mask, set;
4fd6931e 664
ae5eb026
JB		 665 sband = local->hw.wiphy->bands[local->oper_channel->band];
666
f5521b13 667 spin_lock_irqsave(&sta->flaglock, flags);
eccb8e8f
JB		 668 mask = params->sta_flags_mask;
669 set = params->sta_flags_set;
73651ee6 670
eccb8e8f 671 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4fd6931e 672 sta->flags &= ~WLAN_STA_AUTHORIZED;
eccb8e8f 673 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4fd6931e 674 sta->flags |= WLAN_STA_AUTHORIZED;
eccb8e8f 675 }
4fd6931e 676
eccb8e8f 677 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
4fd6931e 678 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
eccb8e8f 679 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
4fd6931e 680 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
eccb8e8f 681 }
4fd6931e 682
eccb8e8f 683 if (mask & BIT(NL80211_STA_FLAG_WME)) {
4fd6931e 684 sta->flags &= ~WLAN_STA_WME;
eccb8e8f 685 if (set & BIT(NL80211_STA_FLAG_WME))
4fd6931e 686 sta->flags |= WLAN_STA_WME;
eccb8e8f 687 }
5394af4d 688
eccb8e8f 689 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
5394af4d 690 sta->flags &= ~WLAN_STA_MFP;
eccb8e8f 691 if (set & BIT(NL80211_STA_FLAG_MFP))
5394af4d 692 sta->flags |= WLAN_STA_MFP;
4fd6931e 693 }
b39c48fa
JC		 694
695 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
696 sta->flags &= ~WLAN_STA_AUTH;
697 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
698 sta->flags |= WLAN_STA_AUTH;
699 }
f5521b13 700 spin_unlock_irqrestore(&sta->flaglock, flags);
4fd6931e 701
51b50fbe
JB		 702 /*
703 * cfg80211 validates this (1-2007) and allows setting the AID
704 * only when creating a new station entry
705 */
706 if (params->aid)
707 sta->sta.aid = params->aid;
708
73651ee6
JB		 709 /*
710 * FIXME: updating the following information is racy when this
711 * function is called from ieee80211_change_station().
712 * However, all this information should be static so
713 * maybe we should just reject attemps to change it.
714 */
715
4fd6931e
JB		 716 if (params->listen_interval >= 0)
717 sta->listen_interval = params->listen_interval;
718
719 if (params->supported_rates) {
720 rates = 0;
8318d78a 721
4fd6931e
JB		 722 for (i = 0; i < params->supported_rates_len; i++) {
723 int rate = (params->supported_rates[i] & 0x7f) * 5;
8318d78a
JB		 724 for (j = 0; j < sband->n_bitrates; j++) {
725 if (sband->bitrates[j].bitrate == rate)
4fd6931e
JB		 726 rates |= BIT(j);
727 }
728 }
323ce79a 729 sta->sta.supp_rates[local->oper_channel->band] = rates;
4fd6931e 730 }
c5dd9c2b 731
d9fe60de 732 if (params->ht_capa)
ae5eb026
JB		 733 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
734 params->ht_capa,
d9fe60de 735 &sta->sta.ht_cap);
36aedc90 736
902acc78 737 if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) {
c5dd9c2b
LCC		 738 switch (params->plink_action) {
739 case PLINK_ACTION_OPEN:
740 mesh_plink_open(sta);
741 break;
742 case PLINK_ACTION_BLOCK:
743 mesh_plink_block(sta);
744 break;
745 }
902acc78 746 }
4fd6931e
JB		 747}
748
749static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
750 u8 *mac, struct station_parameters *params)
751{
14db74bc 752 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 753 struct sta_info *sta;
754 struct ieee80211_sub_if_data *sdata;
73651ee6 755 int err;
b8d476c8 756 int layer2_update;
4fd6931e 757
4fd6931e
JB		 758 if (params->vlan) {
759 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
760
05c914fe
JB		 761 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
762 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 763 return -EINVAL;
764 } else
765 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
766
47846c9b 767 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
03e4497e
JB		 768 return -EINVAL;
769
770 if (is_multicast_ether_addr(mac))
771 return -EINVAL;
772
773 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 774 if (!sta)
775 return -ENOMEM;
4fd6931e
JB		 776
777 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
778
779 sta_apply_parameters(local, sta, params);
780
4b7679a5 781 rate_control_rate_init(sta);
4fd6931e 782
b8d476c8
JM		 783 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
784 sdata->vif.type == NL80211_IFTYPE_AP;
785
34e89507 786 err = sta_info_insert_rcu(sta);
73651ee6 787 if (err) {
73651ee6
JB		 788 rcu_read_unlock();
789 return err;
790 }
791
b8d476c8 792 if (layer2_update)
73651ee6
JB		 793 ieee80211_send_layer2_update(sta);
794
795 rcu_read_unlock();
796
4fd6931e
JB		 797 return 0;
798}
799
800static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
801 u8 *mac)
802{
14db74bc
JB		 803 struct ieee80211_local *local = wiphy_priv(wiphy);
804 struct ieee80211_sub_if_data *sdata;
4fd6931e 805
14db74bc
JB		 806 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
807
34e89507
JB		 808 if (mac)
809 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 810
34e89507 811 sta_info_flush(local, sdata);
4fd6931e
JB		 812 return 0;
813}
814
815static int ieee80211_change_station(struct wiphy *wiphy,
816 struct net_device *dev,
817 u8 *mac,
818 struct station_parameters *params)
819{
abe60632 820 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 821 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 822 struct sta_info *sta;
823 struct ieee80211_sub_if_data *vlansdata;
824
98dd6a57
JB		 825 rcu_read_lock();
826
0e5ded5a 827 sta = sta_info_get_bss(sdata, mac);
98dd6a57
JB		 828 if (!sta) {
829 rcu_read_unlock();
4fd6931e 830 return -ENOENT;
98dd6a57 831 }
4fd6931e 832
d0709a65 833 if (params->vlan && params->vlan != sta->sdata->dev) {
4fd6931e
JB		 834 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
835
05c914fe
JB		 836 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
837 vlansdata->vif.type != NL80211_IFTYPE_AP) {
98dd6a57 838 rcu_read_unlock();
4fd6931e 839 return -EINVAL;
98dd6a57 840 }
4fd6931e 841
9bc383de 842 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c
JB		 843 if (vlansdata->u.vlan.sta) {
844 rcu_read_unlock();
f14543ee 845 return -EBUSY;
3305443c 846 }
f14543ee
FF		 847
848 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
849 }
850
14db74bc 851 sta->sdata = vlansdata;
4fd6931e
JB		 852 ieee80211_send_layer2_update(sta);
853 }
854
855 sta_apply_parameters(local, sta, params);
856
98dd6a57
JB		 857 rcu_read_unlock();
858
808118cb
JY		 859 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
860 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
861 ieee80211_recalc_ps(local, -1);
862
4fd6931e
JB		 863 return 0;
864}
865
c5dd9c2b
LCC		 866#ifdef CONFIG_MAC80211_MESH
867static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
868 u8 *dst, u8 *next_hop)
869{
14db74bc 870 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 871 struct mesh_path *mpath;
872 struct sta_info *sta;
873 int err;
874
14db74bc
JB		 875 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
876
d0709a65 877 rcu_read_lock();
abe60632 878 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 879 if (!sta) {
880 rcu_read_unlock();
c5dd9c2b 881 return -ENOENT;
d0709a65 882 }
c5dd9c2b 883
f698d856 884 err = mesh_path_add(dst, sdata);
d0709a65
JB		 885 if (err) {
886 rcu_read_unlock();
c5dd9c2b 887 return err;
d0709a65 888 }
c5dd9c2b 889
f698d856 890 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 891 if (!mpath) {
892 rcu_read_unlock();
c5dd9c2b
LCC		 893 return -ENXIO;
894 }
895 mesh_path_fix_nexthop(mpath, sta);
d0709a65 896
c5dd9c2b
LCC		 897 rcu_read_unlock();
898 return 0;
899}
900
901static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
902 u8 *dst)
903{
f698d856
JBG		 904 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
905
c5dd9c2b 906 if (dst)
f698d856 907 return mesh_path_del(dst, sdata);
c5dd9c2b 908
f698d856 909 mesh_path_flush(sdata);
c5dd9c2b
LCC		 910 return 0;
911}
912
913static int ieee80211_change_mpath(struct wiphy *wiphy,
914 struct net_device *dev,
915 u8 *dst, u8 *next_hop)
916{
14db74bc 917 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 918 struct mesh_path *mpath;
919 struct sta_info *sta;
920
14db74bc
JB		 921 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
922
d0709a65
JB		 923 rcu_read_lock();
924
abe60632 925 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 926 if (!sta) {
927 rcu_read_unlock();
c5dd9c2b 928 return -ENOENT;
d0709a65 929 }
c5dd9c2b 930
f698d856 931 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 932 if (!mpath) {
933 rcu_read_unlock();
c5dd9c2b
LCC		 934 return -ENOENT;
935 }
936
937 mesh_path_fix_nexthop(mpath, sta);
d0709a65 938
c5dd9c2b
LCC		 939 rcu_read_unlock();
940 return 0;
941}
942
943static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
944 struct mpath_info *pinfo)
945{
946 if (mpath->next_hop)
17741cdc 947 memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 948 else
949 memset(next_hop, 0, ETH_ALEN);
950
f5ea9120
JB		 951 pinfo->generation = mesh_paths_generation;
952
c5dd9c2b 953 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 954 MPATH_INFO_SN |
c5dd9c2b
LCC		 955 MPATH_INFO_METRIC |
956 MPATH_INFO_EXPTIME |
957 MPATH_INFO_DISCOVERY_TIMEOUT |
958 MPATH_INFO_DISCOVERY_RETRIES |
959 MPATH_INFO_FLAGS;
960
961 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 962 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 963 pinfo->metric = mpath->metric;
964 if (time_before(jiffies, mpath->exp_time))
965 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
966 pinfo->discovery_timeout =
967 jiffies_to_msecs(mpath->discovery_timeout);
968 pinfo->discovery_retries = mpath->discovery_retries;
969 pinfo->flags = 0;
970 if (mpath->flags & MESH_PATH_ACTIVE)
971 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
972 if (mpath->flags & MESH_PATH_RESOLVING)
973 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 974 if (mpath->flags & MESH_PATH_SN_VALID)
975 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 976 if (mpath->flags & MESH_PATH_FIXED)
977 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
978 if (mpath->flags & MESH_PATH_RESOLVING)
979 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
980
981 pinfo->flags = mpath->flags;
982}
983
984static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
985 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
986
987{
14db74bc 988 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 989 struct mesh_path *mpath;
990
14db74bc
JB		 991 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
992
c5dd9c2b 993 rcu_read_lock();
f698d856 994 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 995 if (!mpath) {
996 rcu_read_unlock();
997 return -ENOENT;
998 }
999 memcpy(dst, mpath->dst, ETH_ALEN);
1000 mpath_set_pinfo(mpath, next_hop, pinfo);
1001 rcu_read_unlock();
1002 return 0;
1003}
1004
1005static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1006 int idx, u8 *dst, u8 *next_hop,
1007 struct mpath_info *pinfo)
1008{
14db74bc 1009 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1010 struct mesh_path *mpath;
1011
14db74bc
JB		 1012 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1013
c5dd9c2b 1014 rcu_read_lock();
f698d856 1015 mpath = mesh_path_lookup_by_idx(idx, sdata);
c5dd9c2b
LCC		 1016 if (!mpath) {
1017 rcu_read_unlock();
1018 return -ENOENT;
1019 }
1020 memcpy(dst, mpath->dst, ETH_ALEN);
1021 mpath_set_pinfo(mpath, next_hop, pinfo);
1022 rcu_read_unlock();
1023 return 0;
1024}
93da9cc1 1025
24bdd9f4 1026static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1027 struct net_device *dev,
1028 struct mesh_config *conf)
1029{
1030 struct ieee80211_sub_if_data *sdata;
1031 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1032
93da9cc1 1033 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1034 return 0;
1035}
1036
1037static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1038{
1039 return (mask >> (parm-1)) & 0x1;
1040}
1041
c80d545d
JC		 1042static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1043 const struct mesh_setup *setup)
1044{
1045 u8 *new_ie;
1046 const u8 *old_ie;
1047
581a8b0f 1048 /* allocate information elements */
c80d545d 1049 new_ie = NULL;
581a8b0f 1050 old_ie = ifmsh->ie;
c80d545d 1051
581a8b0f
JC		 1052 if (setup->ie_len) {
1053 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1054 GFP_KERNEL);
1055 if (!new_ie)
1056 return -ENOMEM;
1057 }
581a8b0f
JC		 1058 ifmsh->ie_len = setup->ie_len;
1059 ifmsh->ie = new_ie;
1060 kfree(old_ie);
c80d545d
JC		 1061
1062 /* now copy the rest of the setup parameters */
1063 ifmsh->mesh_id_len = setup->mesh_id_len;
1064 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1065 ifmsh->mesh_pp_id = setup->path_sel_proto;
1066 ifmsh->mesh_pm_id = setup->path_metric;
5cff5e01 1067 ifmsh->is_secure = setup->is_secure;
c80d545d
JC		 1068
1069 return 0;
1070}
1071
24bdd9f4 1072static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1073 struct net_device *dev, u32 mask,
1074 const struct mesh_config *nconf)
93da9cc1 1075{
1076 struct mesh_config *conf;
1077 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1078 struct ieee80211_if_mesh *ifmsh;
1079
93da9cc1 1080 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1081 ifmsh = &sdata->u.mesh;
93da9cc1 1082
93da9cc1 1083 /* Set the config options which we are interested in setting */
1084 conf = &(sdata->u.mesh.mshcfg);
1085 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1086 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1087 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1088 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1089 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1090 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1091 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1092 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1093 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1094 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1095 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1096 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21
JC		 1097 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1098 conf->dot11MeshTTL = nconf->element_ttl;
93da9cc1 1099 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1100 conf->auto_open_plinks = nconf->auto_open_plinks;
1101 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1102 conf->dot11MeshHWMPmaxPREQretries =
1103 nconf->dot11MeshHWMPmaxPREQretries;
1104 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1105 conf->path_refresh_time = nconf->path_refresh_time;
1106 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1107 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1108 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1109 conf->dot11MeshHWMPactivePathTimeout =
1110 nconf->dot11MeshHWMPactivePathTimeout;
1111 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1112 conf->dot11MeshHWMPpreqMinInterval =
1113 nconf->dot11MeshHWMPpreqMinInterval;
1114 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1115 mask))
1116 conf->dot11MeshHWMPnetDiameterTraversalTime =
1117 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1118 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1119 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1120 ieee80211_mesh_root_setup(ifmsh);
1121 }
93da9cc1 1122 return 0;
1123}
1124
29cbe68c
JB		 1125static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1126 const struct mesh_config *conf,
1127 const struct mesh_setup *setup)
1128{
1129 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1130 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1131 int err;
29cbe68c 1132
c80d545d
JC		 1133 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1134 err = copy_mesh_setup(ifmsh, setup);
1135 if (err)
1136 return err;
29cbe68c
JB		 1137 ieee80211_start_mesh(sdata);
1138
1139 return 0;
1140}
1141
1142static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1143{
1144 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1145
1146 ieee80211_stop_mesh(sdata);
1147
1148 return 0;
1149}
c5dd9c2b
LCC		 1150#endif
1151
9f1ba906
JM		 1152static int ieee80211_change_bss(struct wiphy *wiphy,
1153 struct net_device *dev,
1154 struct bss_parameters *params)
1155{
9f1ba906
JM		 1156 struct ieee80211_sub_if_data *sdata;
1157 u32 changed = 0;
1158
9f1ba906
JM		 1159 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1160
9f1ba906 1161 if (params->use_cts_prot >= 0) {
bda3933a 1162 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1163 changed |= BSS_CHANGED_ERP_CTS_PROT;
1164 }
1165 if (params->use_short_preamble >= 0) {
bda3933a 1166 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1167 params->use_short_preamble;
1168 changed |= BSS_CHANGED_ERP_PREAMBLE;
1169 }
43d35343
FF		 1170
1171 if (!sdata->vif.bss_conf.use_short_slot &&
1172 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1173 sdata->vif.bss_conf.use_short_slot = true;
1174 changed |= BSS_CHANGED_ERP_SLOT;
1175 }
1176
9f1ba906 1177 if (params->use_short_slot_time >= 0) {
bda3933a 1178 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1179 params->use_short_slot_time;
1180 changed |= BSS_CHANGED_ERP_SLOT;
1181 }
1182
90c97a04
JM		 1183 if (params->basic_rates) {
1184 int i, j;
1185 u32 rates = 0;
1186 struct ieee80211_local *local = wiphy_priv(wiphy);
1187 struct ieee80211_supported_band *sband =
1188 wiphy->bands[local->oper_channel->band];
1189
1190 for (i = 0; i < params->basic_rates_len; i++) {
1191 int rate = (params->basic_rates[i] & 0x7f) * 5;
1192 for (j = 0; j < sband->n_bitrates; j++) {
1193 if (sband->bitrates[j].bitrate == rate)
1194 rates |= BIT(j);
1195 }
1196 }
1197 sdata->vif.bss_conf.basic_rates = rates;
1198 changed |= BSS_CHANGED_BASIC_RATES;
1199 }
1200
7b7b5e56
FF		 1201 if (params->ap_isolate >= 0) {
1202 if (params->ap_isolate)
1203 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1204 else
1205 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1206 }
1207
80d7e403
HS		 1208 if (params->ht_opmode >= 0) {
1209 sdata->vif.bss_conf.ht_operation_mode =
1210 (u16) params->ht_opmode;
1211 changed |= BSS_CHANGED_HT;
1212 }
1213
9f1ba906
JM		 1214 ieee80211_bss_info_change_notify(sdata, changed);
1215
1216 return 0;
1217}
1218
31888487
JM		 1219static int ieee80211_set_txq_params(struct wiphy *wiphy,
1220 struct ieee80211_txq_params *params)
1221{
1222 struct ieee80211_local *local = wiphy_priv(wiphy);
1223 struct ieee80211_tx_queue_params p;
1224
1225 if (!local->ops->conf_tx)
1226 return -EOPNOTSUPP;
1227
1228 memset(&p, 0, sizeof(p));
1229 p.aifs = params->aifs;
1230 p.cw_max = params->cwmax;
1231 p.cw_min = params->cwmin;
1232 p.txop = params->txop;
ab13315a
KV		 1233
1234 /*
1235 * Setting tx queue params disables u-apsd because it's only
1236 * called in master mode.
1237 */
1238 p.uapsd = false;
1239
24487981 1240 if (drv_conf_tx(local, params->queue, &p)) {
0fb9a9ec
JP		 1241 wiphy_debug(local->hw.wiphy,
1242 "failed to set TX queue parameters for queue %d\n",
1243 params->queue);
31888487
JM		 1244 return -EINVAL;
1245 }
1246
1247 return 0;
1248}
1249
72bdcf34 1250static int ieee80211_set_channel(struct wiphy *wiphy,
f444de05 1251 struct net_device *netdev,
72bdcf34 1252 struct ieee80211_channel *chan,
094d05dc 1253 enum nl80211_channel_type channel_type)
72bdcf34
JM		 1254{
1255 struct ieee80211_local *local = wiphy_priv(wiphy);
0aaffa9b 1256 struct ieee80211_sub_if_data *sdata = NULL;
eeabee7e
BG		 1257 struct ieee80211_channel *old_oper;
1258 enum nl80211_channel_type old_oper_type;
1259 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
0aaffa9b
JB		 1260
1261 if (netdev)
1262 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
72bdcf34 1263
f444de05
JB		 1264 switch (ieee80211_get_channel_mode(local, NULL)) {
1265 case CHAN_MODE_HOPPING:
1266 return -EBUSY;
1267 case CHAN_MODE_FIXED:
0aaffa9b
JB		 1268 if (local->oper_channel != chan)
1269 return -EBUSY;
1270 if (!sdata && local->_oper_channel_type == channel_type)
f444de05 1271 return 0;
0aaffa9b 1272 break;
f444de05
JB		 1273 case CHAN_MODE_UNDEFINED:
1274 break;
1275 }
72bdcf34 1276
eeabee7e
BG		 1277 if (sdata)
1278 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1279 old_oper_type = local->_oper_channel_type;
72bdcf34 1280
0aaffa9b
JB		 1281 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1282 return -EBUSY;
1283
eeabee7e
BG		 1284 old_oper = local->oper_channel;
1285 local->oper_channel = chan;
1286
1287 /* Update driver if changes were actually made. */
1288 if ((old_oper != local->oper_channel) ||
1289 (old_oper_type != local->_oper_channel_type))
1290 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1291
1292 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1293 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
0aaffa9b
JB		 1294 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1295
1296 return 0;
72bdcf34
JM		 1297}
1298
665af4fc 1299#ifdef CONFIG_PM
ff1b6e69
JB		 1300static int ieee80211_suspend(struct wiphy *wiphy,
1301 struct cfg80211_wowlan *wowlan)
665af4fc
BC		 1302{
1303 return __ieee80211_suspend(wiphy_priv(wiphy));
1304}
1305
1306static int ieee80211_resume(struct wiphy *wiphy)
1307{
1308 return __ieee80211_resume(wiphy_priv(wiphy));
1309}
1310#else
1311#define ieee80211_suspend NULL
1312#define ieee80211_resume NULL
1313#endif
1314
2a519311
JB		 1315static int ieee80211_scan(struct wiphy *wiphy,
1316 struct net_device *dev,
1317 struct cfg80211_scan_request *req)
1318{
2ca27bcf 1319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2a519311 1320
2ca27bcf
JB		 1321 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1322 case NL80211_IFTYPE_STATION:
1323 case NL80211_IFTYPE_ADHOC:
1324 case NL80211_IFTYPE_MESH_POINT:
1325 case NL80211_IFTYPE_P2P_CLIENT:
1326 break;
1327 case NL80211_IFTYPE_P2P_GO:
1328 if (sdata->local->ops->hw_scan)
1329 break;
e9d7732e
JB		 1330 /*
1331 * FIXME: implement NoA while scanning in software,
1332 * for now fall through to allow scanning only when
1333 * beaconing hasn't been configured yet
1334 */
2ca27bcf
JB		 1335 case NL80211_IFTYPE_AP:
1336 if (sdata->u.ap.beacon)
1337 return -EOPNOTSUPP;
1338 break;
1339 default:
1340 return -EOPNOTSUPP;
1341 }
2a519311
JB		 1342
1343 return ieee80211_request_scan(sdata, req);
1344}
1345
636a5d36
JM		 1346static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1347 struct cfg80211_auth_request *req)
1348{
77fdaa12 1349 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1350}
1351
1352static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1353 struct cfg80211_assoc_request *req)
1354{
f444de05
JB		 1355 struct ieee80211_local *local = wiphy_priv(wiphy);
1356 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1357
1358 switch (ieee80211_get_channel_mode(local, sdata)) {
1359 case CHAN_MODE_HOPPING:
1360 return -EBUSY;
1361 case CHAN_MODE_FIXED:
1362 if (local->oper_channel == req->bss->channel)
1363 break;
1364 return -EBUSY;
1365 case CHAN_MODE_UNDEFINED:
1366 break;
1367 }
1368
77fdaa12 1369 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1370}
1371
1372static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1373 struct cfg80211_deauth_request *req,
1374 void *cookie)
636a5d36 1375{
667503dd
JB		 1376 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1377 req, cookie);
636a5d36
JM		 1378}
1379
1380static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1381 struct cfg80211_disassoc_request *req,
1382 void *cookie)
636a5d36 1383{
667503dd
JB		 1384 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1385 req, cookie);
636a5d36
JM		 1386}
1387
af8cdcd8
JB		 1388static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1389 struct cfg80211_ibss_params *params)
1390{
f444de05 1391 struct ieee80211_local *local = wiphy_priv(wiphy);
af8cdcd8
JB		 1392 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1393
f444de05
JB		 1394 switch (ieee80211_get_channel_mode(local, sdata)) {
1395 case CHAN_MODE_HOPPING:
1396 return -EBUSY;
1397 case CHAN_MODE_FIXED:
1398 if (!params->channel_fixed)
1399 return -EBUSY;
1400 if (local->oper_channel == params->channel)
1401 break;
1402 return -EBUSY;
1403 case CHAN_MODE_UNDEFINED:
1404 break;
1405 }
1406
af8cdcd8
JB		 1407 return ieee80211_ibss_join(sdata, params);
1408}
1409
1410static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1411{
1412 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1413
1414 return ieee80211_ibss_leave(sdata);
1415}
1416
b9a5f8ca
JM		 1417static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1418{
1419 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1420 int err;
b9a5f8ca 1421
f23a4780
AN		 1422 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1423 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1424
1425 if (err)
1426 return err;
1427 }
1428
310bc676
LT		 1429 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1430 err = drv_set_coverage_class(local, wiphy->coverage_class);
1431
1432 if (err)
1433 return err;
1434 }
1435
b9a5f8ca 1436 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1437 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1438
24487981
JB		 1439 if (err)
1440 return err;
b9a5f8ca
JM		 1441 }
1442
1443 if (changed & WIPHY_PARAM_RETRY_SHORT)
1444 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1445 if (changed & WIPHY_PARAM_RETRY_LONG)
1446 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1447 if (changed &
1448 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1449 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1450
1451 return 0;
1452}
1453
7643a2c3 1454static int ieee80211_set_tx_power(struct wiphy *wiphy,
fa61cf70 1455 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 1456{
1457 struct ieee80211_local *local = wiphy_priv(wiphy);
1458 struct ieee80211_channel *chan = local->hw.conf.channel;
1459 u32 changes = 0;
7643a2c3
JB		 1460
1461 switch (type) {
fa61cf70 1462 case NL80211_TX_POWER_AUTOMATIC:
7643a2c3
JB		 1463 local->user_power_level = -1;
1464 break;
fa61cf70
JO		 1465 case NL80211_TX_POWER_LIMITED:
1466 if (mbm < 0 || (mbm % 100))
1467 return -EOPNOTSUPP;
1468 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1469 break;
fa61cf70
JO		 1470 case NL80211_TX_POWER_FIXED:
1471 if (mbm < 0 || (mbm % 100))
1472 return -EOPNOTSUPP;
7643a2c3 1473 /* TODO: move to cfg80211 when it knows the channel */
fa61cf70 1474 if (MBM_TO_DBM(mbm) > chan->max_power)
7643a2c3 1475 return -EINVAL;
fa61cf70 1476 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1477 break;
7643a2c3
JB		 1478 }
1479
1480 ieee80211_hw_config(local, changes);
1481
1482 return 0;
1483}
1484
1485static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1486{
1487 struct ieee80211_local *local = wiphy_priv(wiphy);
1488
1489 *dbm = local->hw.conf.power_level;
1490
7643a2c3
JB		 1491 return 0;
1492}
1493
ab737a4f 1494static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 1495 const u8 *addr)
ab737a4f
JB		 1496{
1497 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1498
1499 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1500
1501 return 0;
1502}
1503
1f87f7d3
JB		 1504static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1505{
1506 struct ieee80211_local *local = wiphy_priv(wiphy);
1507
1508 drv_rfkill_poll(local);
1509}
1510
aff89a9b 1511#ifdef CONFIG_NL80211_TESTMODE
99783e2c 1512static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
aff89a9b
JB		 1513{
1514 struct ieee80211_local *local = wiphy_priv(wiphy);
1515
1516 if (!local->ops->testmode_cmd)
1517 return -EOPNOTSUPP;
1518
1519 return local->ops->testmode_cmd(&local->hw, data, len);
1520}
1521#endif
1522
0f78231b
JB		 1523int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1524 enum ieee80211_smps_mode smps_mode)
1525{
1526 const u8 *ap;
1527 enum ieee80211_smps_mode old_req;
1528 int err;
1529
243e6df4
JB		 1530 lockdep_assert_held(&sdata->u.mgd.mtx);
1531
0f78231b
JB		 1532 old_req = sdata->u.mgd.req_smps;
1533 sdata->u.mgd.req_smps = smps_mode;
1534
1535 if (old_req == smps_mode &&
1536 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1537 return 0;
1538
1539 /*
1540 * If not associated, or current association is not an HT
1541 * association, there's no need to send an action frame.
1542 */
1543 if (!sdata->u.mgd.associated ||
0aaffa9b 1544 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
0f78231b 1545 mutex_lock(&sdata->local->iflist_mtx);
025e6be2 1546 ieee80211_recalc_smps(sdata->local);
0f78231b
JB		 1547 mutex_unlock(&sdata->local->iflist_mtx);
1548 return 0;
1549 }
1550
0c1ad2ca 1551 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 1552
1553 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1554 if (sdata->u.mgd.powersave)
1555 smps_mode = IEEE80211_SMPS_DYNAMIC;
1556 else
1557 smps_mode = IEEE80211_SMPS_OFF;
1558 }
1559
1560 /* send SM PS frame to AP */
1561 err = ieee80211_send_smps_action(sdata, smps_mode,
1562 ap, ap);
1563 if (err)
1564 sdata->u.mgd.req_smps = old_req;
1565
1566 return err;
1567}
1568
bc92afd9
JB		 1569static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1570 bool enabled, int timeout)
1571{
1572 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1573 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 1574
e5de30c9
BP		 1575 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1576 return -EOPNOTSUPP;
1577
bc92afd9
JB		 1578 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1579 return -EOPNOTSUPP;
1580
1581 if (enabled == sdata->u.mgd.powersave &&
ff616381 1582 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 1583 return 0;
1584
1585 sdata->u.mgd.powersave = enabled;
ff616381 1586 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 1587
0f78231b
JB		 1588 /* no change, but if automatic follow powersave */
1589 mutex_lock(&sdata->u.mgd.mtx);
1590 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1591 mutex_unlock(&sdata->u.mgd.mtx);
1592
bc92afd9
JB		 1593 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1594 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1595
1596 ieee80211_recalc_ps(local, -1);
1597
1598 return 0;
1599}
1600
a97c13c3
JO		 1601static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1602 struct net_device *dev,
1603 s32 rssi_thold, u32 rssi_hyst)
1604{
1605 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1606 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1607 struct ieee80211_vif *vif = &sdata->vif;
1608 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1609
a97c13c3
JO		 1610 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1611 rssi_hyst == bss_conf->cqm_rssi_hyst)
1612 return 0;
1613
1614 bss_conf->cqm_rssi_thold = rssi_thold;
1615 bss_conf->cqm_rssi_hyst = rssi_hyst;
1616
17e4ec14
JM		 1617 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1618 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1619 return -EOPNOTSUPP;
1620 return 0;
1621 }
1622
a97c13c3
JO		 1623 /* tell the driver upon association, unless already associated */
1624 if (sdata->u.mgd.associated)
1625 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1626
1627 return 0;
1628}
1629
9930380f
JB		 1630static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1631 struct net_device *dev,
1632 const u8 *addr,
1633 const struct cfg80211_bitrate_mask *mask)
1634{
1635 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1636 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 1637 int i, ret;
2c7e6bc9 1638
bdbfd6b5
SM		 1639 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1640 ret = drv_set_bitrate_mask(local, sdata, mask);
1641 if (ret)
1642 return ret;
1643 }
9930380f 1644
37eb0b16
JM		 1645 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1646 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
9930380f 1647
37eb0b16 1648 return 0;
9930380f
JB		 1649}
1650
21f83589
JB		 1651static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1652 struct net_device *dev,
1653 struct ieee80211_channel *chan,
1654 enum nl80211_channel_type chantype,
1655 unsigned int duration, u64 *cookie)
1656{
1657 int ret;
1658 u32 random_cookie;
1659
1660 lockdep_assert_held(&local->mtx);
1661
1662 if (local->hw_roc_cookie)
1663 return -EBUSY;
1664 /* must be nonzero */
1665 random_cookie = random32() | 1;
1666
1667 *cookie = random_cookie;
1668 local->hw_roc_dev = dev;
1669 local->hw_roc_cookie = random_cookie;
1670 local->hw_roc_channel = chan;
1671 local->hw_roc_channel_type = chantype;
1672 local->hw_roc_duration = duration;
1673 ret = drv_remain_on_channel(local, chan, chantype, duration);
1674 if (ret) {
1675 local->hw_roc_channel = NULL;
1676 local->hw_roc_cookie = 0;
1677 }
1678
1679 return ret;
1680}
1681
b8bc4b0a
JB		 1682static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1683 struct net_device *dev,
1684 struct ieee80211_channel *chan,
1685 enum nl80211_channel_type channel_type,
1686 unsigned int duration,
1687 u64 *cookie)
1688{
1689 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1690 struct ieee80211_local *local = sdata->local;
1691
1692 if (local->ops->remain_on_channel) {
1693 int ret;
1694
1695 mutex_lock(&local->mtx);
1696 ret = ieee80211_remain_on_channel_hw(local, dev,
1697 chan, channel_type,
1698 duration, cookie);
90fc4b3a 1699 local->hw_roc_for_tx = false;
21f83589
JB		 1700 mutex_unlock(&local->mtx);
1701
1702 return ret;
1703 }
b8bc4b0a
JB		 1704
1705 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1706 duration, cookie);
1707}
1708
21f83589
JB		 1709static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1710 u64 cookie)
1711{
1712 int ret;
1713
1714 lockdep_assert_held(&local->mtx);
1715
1716 if (local->hw_roc_cookie != cookie)
1717 return -ENOENT;
1718
1719 ret = drv_cancel_remain_on_channel(local);
1720 if (ret)
1721 return ret;
1722
1723 local->hw_roc_cookie = 0;
1724 local->hw_roc_channel = NULL;
1725
1726 ieee80211_recalc_idle(local);
1727
1728 return 0;
1729}
1730
b8bc4b0a
JB		 1731static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1732 struct net_device *dev,
1733 u64 cookie)
1734{
1735 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1736 struct ieee80211_local *local = sdata->local;
1737
1738 if (local->ops->cancel_remain_on_channel) {
1739 int ret;
1740
1741 mutex_lock(&local->mtx);
1742 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1743 mutex_unlock(&local->mtx);
1744
1745 return ret;
1746 }
b8bc4b0a
JB		 1747
1748 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1749}
1750
f30221e4
JB		 1751static enum work_done_result
1752ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1753{
1754 /*
1755 * Use the data embedded in the work struct for reporting
1756 * here so if the driver mangled the SKB before dropping
1757 * it (which is the only way we really should get here)
1758 * then we don't report mangled data.
1759 *
1760 * If there was no wait time, then by the time we get here
1761 * the driver will likely not have reported the status yet,
1762 * so in that case userspace will have to deal with it.
1763 */
1764
1765 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1766 cfg80211_mgmt_tx_status(wk->sdata->dev,
1767 (unsigned long) wk->offchan_tx.frame,
1768 wk->ie, wk->ie_len, false, GFP_KERNEL);
1769
1770 return WORK_DONE_DESTROY;
1771}
1772
2e161f78 1773static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
f7ca38df 1774 struct ieee80211_channel *chan, bool offchan,
2e161f78 1775 enum nl80211_channel_type channel_type,
f7ca38df 1776 bool channel_type_valid, unsigned int wait,
2e161f78 1777 const u8 *buf, size_t len, u64 *cookie)
026331c4 1778{
9d38d85d
JB		 1779 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1780 struct ieee80211_local *local = sdata->local;
1781 struct sk_buff *skb;
1782 struct sta_info *sta;
f30221e4 1783 struct ieee80211_work *wk;
9d38d85d
JB		 1784 const struct ieee80211_mgmt *mgmt = (void *)buf;
1785 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1786 IEEE80211_TX_CTL_REQ_TX_STATUS;
f30221e4 1787 bool is_offchan = false;
f7ca38df 1788
9d38d85d
JB		 1789 /* Check that we are on the requested channel for transmission */
1790 if (chan != local->tmp_channel &&
1791 chan != local->oper_channel)
f30221e4 1792 is_offchan = true;
9d38d85d
JB		 1793 if (channel_type_valid &&
1794 (channel_type != local->tmp_channel_type &&
1795 channel_type != local->_oper_channel_type))
f30221e4
JB		 1796 is_offchan = true;
1797
21f83589
JB		 1798 if (chan == local->hw_roc_channel) {
1799 /* TODO: check channel type? */
1800 is_offchan = false;
1801 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1802 }
1803
f30221e4 1804 if (is_offchan && !offchan)
9d38d85d
JB		 1805 return -EBUSY;
1806
1807 switch (sdata->vif.type) {
1808 case NL80211_IFTYPE_ADHOC:
663fcafd
JB		 1809 case NL80211_IFTYPE_AP:
1810 case NL80211_IFTYPE_AP_VLAN:
1811 case NL80211_IFTYPE_P2P_GO:
c7108a71 1812 case NL80211_IFTYPE_MESH_POINT:
663fcafd
JB		 1813 if (!ieee80211_is_action(mgmt->frame_control) ||
1814 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
9d38d85d
JB		 1815 break;
1816 rcu_read_lock();
1817 sta = sta_info_get(sdata, mgmt->da);
1818 rcu_read_unlock();
1819 if (!sta)
1820 return -ENOLINK;
1821 break;
1822 case NL80211_IFTYPE_STATION:
663fcafd 1823 case NL80211_IFTYPE_P2P_CLIENT:
9d38d85d
JB		 1824 break;
1825 default:
1826 return -EOPNOTSUPP;
1827 }
1828
1829 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1830 if (!skb)
1831 return -ENOMEM;
1832 skb_reserve(skb, local->hw.extra_tx_headroom);
1833
1834 memcpy(skb_put(skb, len), buf, len);
1835
1836 IEEE80211_SKB_CB(skb)->flags = flags;
1837
1838 skb->dev = sdata->dev;
9d38d85d
JB		 1839
1840 *cookie = (unsigned long) skb;
f30221e4 1841
5f16a436
JB		 1842 if (is_offchan && local->ops->offchannel_tx) {
1843 int ret;
1844
1845 IEEE80211_SKB_CB(skb)->band = chan->band;
1846
1847 mutex_lock(&local->mtx);
1848
1849 if (local->hw_offchan_tx_cookie) {
1850 mutex_unlock(&local->mtx);
1851 return -EBUSY;
1852 }
1853
1854 /* TODO: bitrate control, TX processing? */
1855 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1856
1857 if (ret == 0)
1858 local->hw_offchan_tx_cookie = *cookie;
1859 mutex_unlock(&local->mtx);
1860
1861 /*
1862 * Allow driver to return 1 to indicate it wants to have the
1863 * frame transmitted with a remain_on_channel + regular TX.
1864 */
1865 if (ret != 1)
1866 return ret;
1867 }
1868
90fc4b3a
JB		 1869 if (is_offchan && local->ops->remain_on_channel) {
1870 unsigned int duration;
1871 int ret;
1872
1873 mutex_lock(&local->mtx);
1874 /*
1875 * If the duration is zero, then the driver
1876 * wouldn't actually do anything. Set it to
1877 * 100 for now.
1878 *
1879 * TODO: cancel the off-channel operation
1880 * when we get the SKB's TX status and
1881 * the wait time was zero before.
1882 */
1883 duration = 100;
1884 if (wait)
1885 duration = wait;
1886 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1887 channel_type,
1888 duration, cookie);
1889 if (ret) {
1890 kfree_skb(skb);
1891 mutex_unlock(&local->mtx);
1892 return ret;
1893 }
1894
1895 local->hw_roc_for_tx = true;
1896 local->hw_roc_duration = wait;
1897
1898 /*
1899 * queue up frame for transmission after
1900 * ieee80211_ready_on_channel call
1901 */
1902
1903 /* modify cookie to prevent API mismatches */
1904 *cookie ^= 2;
1905 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1906 local->hw_roc_skb = skb;
4334ec85 1907 local->hw_roc_skb_for_status = skb;
90fc4b3a
JB		 1908 mutex_unlock(&local->mtx);
1909
1910 return 0;
1911 }
1912
f30221e4
JB		 1913 /*
1914 * Can transmit right away if the channel was the
1915 * right one and there's no wait involved... If a
1916 * wait is involved, we might otherwise not be on
1917 * the right channel for long enough!
1918 */
1919 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1920 ieee80211_tx_skb(sdata, skb);
1921 return 0;
1922 }
1923
1924 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1925 if (!wk) {
1926 kfree_skb(skb);
1927 return -ENOMEM;
1928 }
1929
1930 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1931 wk->chan = chan;
4d51e149 1932 wk->chan_type = channel_type;
f30221e4
JB		 1933 wk->sdata = sdata;
1934 wk->done = ieee80211_offchan_tx_done;
1935 wk->offchan_tx.frame = skb;
1936 wk->offchan_tx.wait = wait;
1937 wk->ie_len = len;
1938 memcpy(wk->ie, buf, len);
1939
1940 ieee80211_add_work(wk);
9d38d85d 1941 return 0;
026331c4
JM		 1942}
1943
f30221e4
JB		 1944static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1945 struct net_device *dev,
1946 u64 cookie)
1947{
1948 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1949 struct ieee80211_local *local = sdata->local;
1950 struct ieee80211_work *wk;
1951 int ret = -ENOENT;
1952
1953 mutex_lock(&local->mtx);
90fc4b3a 1954
5f16a436
JB		 1955 if (local->ops->offchannel_tx_cancel_wait &&
1956 local->hw_offchan_tx_cookie == cookie) {
1957 ret = drv_offchannel_tx_cancel_wait(local);
1958
1959 if (!ret)
1960 local->hw_offchan_tx_cookie = 0;
1961
1962 mutex_unlock(&local->mtx);
1963
1964 return ret;
1965 }
1966
90fc4b3a
JB		 1967 if (local->ops->cancel_remain_on_channel) {
1968 cookie ^= 2;
1969 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1970
1971 if (ret == 0) {
1972 kfree_skb(local->hw_roc_skb);
1973 local->hw_roc_skb = NULL;
4334ec85 1974 local->hw_roc_skb_for_status = NULL;
90fc4b3a
JB		 1975 }
1976
1977 mutex_unlock(&local->mtx);
1978
1979 return ret;
1980 }
1981
f30221e4
JB		 1982 list_for_each_entry(wk, &local->work_list, list) {
1983 if (wk->sdata != sdata)
1984 continue;
1985
1986 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
1987 continue;
1988
1989 if (cookie != (unsigned long) wk->offchan_tx.frame)
1990 continue;
1991
1992 wk->timeout = jiffies;
1993
1994 ieee80211_queue_work(&local->hw, &local->work_work);
1995 ret = 0;
1996 break;
1997 }
1998 mutex_unlock(&local->mtx);
1999
2000 return ret;
2001}
2002
7be5086d
JB		 2003static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2004 struct net_device *dev,
2005 u16 frame_type, bool reg)
2006{
2007 struct ieee80211_local *local = wiphy_priv(wiphy);
2008
2009 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2010 return;
2011
2012 if (reg)
2013 local->probe_req_reg++;
2014 else
2015 local->probe_req_reg--;
2016
2017 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2018}
2019
15d96753
BR		 2020static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2021{
2022 struct ieee80211_local *local = wiphy_priv(wiphy);
2023
2024 if (local->started)
2025 return -EOPNOTSUPP;
2026
2027 return drv_set_antenna(local, tx_ant, rx_ant);
2028}
2029
2030static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2031{
2032 struct ieee80211_local *local = wiphy_priv(wiphy);
2033
2034 return drv_get_antenna(local, tx_ant, rx_ant);
2035}
2036
38c09159
JL		 2037static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2038{
2039 struct ieee80211_local *local = wiphy_priv(wiphy);
2040
2041 return drv_set_ringparam(local, tx, rx);
2042}
2043
2044static void ieee80211_get_ringparam(struct wiphy *wiphy,
2045 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2046{
2047 struct ieee80211_local *local = wiphy_priv(wiphy);
2048
2049 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2050}
2051
f0706e82
JB		 2052struct cfg80211_ops mac80211_config_ops = {
2053 .add_virtual_intf = ieee80211_add_iface,
2054 .del_virtual_intf = ieee80211_del_iface,
42613db7 2055 .change_virtual_intf = ieee80211_change_iface,
e8cbb4cb
JB		 2056 .add_key = ieee80211_add_key,
2057 .del_key = ieee80211_del_key,
62da92fb 2058 .get_key = ieee80211_get_key,
e8cbb4cb 2059 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 2060 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5dfdaf58
JB		 2061 .add_beacon = ieee80211_add_beacon,
2062 .set_beacon = ieee80211_set_beacon,
2063 .del_beacon = ieee80211_del_beacon,
4fd6931e
JB		 2064 .add_station = ieee80211_add_station,
2065 .del_station = ieee80211_del_station,
2066 .change_station = ieee80211_change_station,
7bbdd2d9 2067 .get_station = ieee80211_get_station,
c5dd9c2b 2068 .dump_station = ieee80211_dump_station,
1289723e 2069 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 2070#ifdef CONFIG_MAC80211_MESH
2071 .add_mpath = ieee80211_add_mpath,
2072 .del_mpath = ieee80211_del_mpath,
2073 .change_mpath = ieee80211_change_mpath,
2074 .get_mpath = ieee80211_get_mpath,
2075 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 2076 .update_mesh_config = ieee80211_update_mesh_config,
2077 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 2078 .join_mesh = ieee80211_join_mesh,
2079 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 2080#endif
9f1ba906 2081 .change_bss = ieee80211_change_bss,
31888487 2082 .set_txq_params = ieee80211_set_txq_params,
72bdcf34 2083 .set_channel = ieee80211_set_channel,
665af4fc
BC		 2084 .suspend = ieee80211_suspend,
2085 .resume = ieee80211_resume,
2a519311 2086 .scan = ieee80211_scan,
636a5d36
JM		 2087 .auth = ieee80211_auth,
2088 .assoc = ieee80211_assoc,
2089 .deauth = ieee80211_deauth,
2090 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 2091 .join_ibss = ieee80211_join_ibss,
2092 .leave_ibss = ieee80211_leave_ibss,
b9a5f8ca 2093 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 2094 .set_tx_power = ieee80211_set_tx_power,
2095 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 2096 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 2097 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 2098 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
bc92afd9 2099 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 2100 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 2101 .remain_on_channel = ieee80211_remain_on_channel,
2102 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 2103 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 2104 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 2105 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 2106 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 2107 .set_antenna = ieee80211_set_antenna,
2108 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 2109 .set_ringparam = ieee80211_set_ringparam,
2110 .get_ringparam = ieee80211_get_ringparam,
f0706e82 2111};
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