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mac80211: fix TX a-MPDU locking
[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>
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) {
ff973af7
TP		 139 if (ieee80211_vif_is_mesh(&sdata->vif))
140 sta = sta_info_get(sdata, mac_addr);
141 else
142 sta = sta_info_get_bss(sdata, mac_addr);
db4d1169 143 if (!sta) {
32162a4d 144 ieee80211_key_free(sdata->local, key);
3b96766f
JB		 145 err = -ENOENT;
146 goto out_unlock;
db4d1169 147 }
e8cbb4cb
JB		 148 }
149
3ffc2a90
JB		 150 err = ieee80211_key_link(key, sdata, sta);
151 if (err)
152 ieee80211_key_free(sdata->local, key);
db4d1169 153
3b96766f 154 out_unlock:
ad0e2b5a 155 mutex_unlock(&sdata->local->sta_mtx);
3b96766f
JB		 156
157 return err;
e8cbb4cb
JB		 158}
159
160static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 161 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 162{
5c0c3641
JB		 163 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
164 struct ieee80211_local *local = sdata->local;
e8cbb4cb 165 struct sta_info *sta;
5c0c3641 166 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 167 int ret;
168
5c0c3641
JB		 169 mutex_lock(&local->sta_mtx);
170 mutex_lock(&local->key_mtx);
3b96766f 171
e8cbb4cb 172 if (mac_addr) {
3b96766f
JB		 173 ret = -ENOENT;
174
0e5ded5a 175 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 176 if (!sta)
3b96766f 177 goto out_unlock;
e8cbb4cb 178
5c0c3641
JB		 179 if (pairwise)
180 key = sta->ptk;
181 else
182 key = sta->gtk[key_idx];
183 } else
184 key = sdata->keys[key_idx];
e8cbb4cb 185
5c0c3641 186 if (!key) {
3b96766f
JB		 187 ret = -ENOENT;
188 goto out_unlock;
189 }
e8cbb4cb 190
5c0c3641 191 __ieee80211_key_free(key);
e8cbb4cb 192
3b96766f
JB		 193 ret = 0;
194 out_unlock:
5c0c3641
JB		 195 mutex_unlock(&local->key_mtx);
196 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 197
198 return ret;
e8cbb4cb
JB		 199}
200
62da92fb 201static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 202 u8 key_idx, bool pairwise, const u8 *mac_addr,
203 void *cookie,
62da92fb
JB		 204 void (*callback)(void *cookie,
205 struct key_params *params))
206{
14db74bc 207 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 208 struct sta_info *sta = NULL;
209 u8 seq[6] = {0};
210 struct key_params params;
e31b8213 211 struct ieee80211_key *key = NULL;
62da92fb
JB		 212 u32 iv32;
213 u16 iv16;
214 int err = -ENOENT;
215
14db74bc
JB		 216 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
217
3b96766f
JB		 218 rcu_read_lock();
219
62da92fb 220 if (mac_addr) {
0e5ded5a 221 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 222 if (!sta)
223 goto out;
224
e31b8213 225 if (pairwise)
a3836e02 226 key = rcu_dereference(sta->ptk);
e31b8213 227 else if (key_idx < NUM_DEFAULT_KEYS)
a3836e02 228 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 229 } else
a3836e02 230 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 231
232 if (!key)
233 goto out;
234
235 memset(&params, 0, sizeof(params));
236
97359d12 237 params.cipher = key->conf.cipher;
62da92fb 238
97359d12
JB		 239 switch (key->conf.cipher) {
240 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 241 iv32 = key->u.tkip.tx.iv32;
242 iv16 = key->u.tkip.tx.iv16;
62da92fb 243
24487981
JB		 244 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
245 drv_get_tkip_seq(sdata->local,
246 key->conf.hw_key_idx,
247 &iv32, &iv16);
62da92fb
JB		 248
249 seq[0] = iv16 & 0xff;
250 seq[1] = (iv16 >> 8) & 0xff;
251 seq[2] = iv32 & 0xff;
252 seq[3] = (iv32 >> 8) & 0xff;
253 seq[4] = (iv32 >> 16) & 0xff;
254 seq[5] = (iv32 >> 24) & 0xff;
255 params.seq = seq;
256 params.seq_len = 6;
257 break;
97359d12 258 case WLAN_CIPHER_SUITE_CCMP:
62da92fb
JB		 259 seq[0] = key->u.ccmp.tx_pn[5];
260 seq[1] = key->u.ccmp.tx_pn[4];
261 seq[2] = key->u.ccmp.tx_pn[3];
262 seq[3] = key->u.ccmp.tx_pn[2];
263 seq[4] = key->u.ccmp.tx_pn[1];
264 seq[5] = key->u.ccmp.tx_pn[0];
265 params.seq = seq;
266 params.seq_len = 6;
267 break;
97359d12 268 case WLAN_CIPHER_SUITE_AES_CMAC:
3cfcf6ac
JM		 269 seq[0] = key->u.aes_cmac.tx_pn[5];
270 seq[1] = key->u.aes_cmac.tx_pn[4];
271 seq[2] = key->u.aes_cmac.tx_pn[3];
272 seq[3] = key->u.aes_cmac.tx_pn[2];
273 seq[4] = key->u.aes_cmac.tx_pn[1];
274 seq[5] = key->u.aes_cmac.tx_pn[0];
275 params.seq = seq;
276 params.seq_len = 6;
277 break;
62da92fb
JB		 278 }
279
280 params.key = key->conf.key;
281 params.key_len = key->conf.keylen;
282
283 callback(cookie, &params);
284 err = 0;
285
286 out:
3b96766f 287 rcu_read_unlock();
62da92fb
JB		 288 return err;
289}
290
e8cbb4cb
JB		 291static int ieee80211_config_default_key(struct wiphy *wiphy,
292 struct net_device *dev,
dbd2fd65
JB		 293 u8 key_idx, bool uni,
294 bool multi)
e8cbb4cb 295{
ad0e2b5a 296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 297
f7e0104c 298 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 299
300 return 0;
301}
302
3cfcf6ac
JM		 303static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
304 struct net_device *dev,
305 u8 key_idx)
306{
66c52421 307 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 308
3cfcf6ac
JM		 309 ieee80211_set_default_mgmt_key(sdata, key_idx);
310
3cfcf6ac
JM		 311 return 0;
312}
313
3af6334c
FF		 314static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
315{
316 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
317 struct ieee80211_supported_band *sband;
318 sband = sta->local->hw.wiphy->bands[
319 sta->local->hw.conf.channel->band];
320 rate->legacy = sband->bitrates[idx].bitrate;
321 } else
322 rate->mcs = idx;
323}
324
c5dd9c2b
LCC		 325static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
326{
d0709a65 327 struct ieee80211_sub_if_data *sdata = sta->sdata;
ebe27c91 328 struct timespec uptime;
c5dd9c2b 329
f5ea9120
JB		 330 sinfo->generation = sdata->local->sta_generation;
331
c5dd9c2b
LCC		 332 sinfo->filled = STATION_INFO_INACTIVE_TIME |
333 STATION_INFO_RX_BYTES |
420e7fab 334 STATION_INFO_TX_BYTES |
98c8a60a
JM		 335 STATION_INFO_RX_PACKETS |
336 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 337 STATION_INFO_TX_RETRIES |
338 STATION_INFO_TX_FAILED |
5a5c731a 339 STATION_INFO_TX_BITRATE |
3af6334c 340 STATION_INFO_RX_BITRATE |
f4263c98 341 STATION_INFO_RX_DROP_MISC |
ebe27c91
MSS		 342 STATION_INFO_BSS_PARAM |
343 STATION_INFO_CONNECTED_TIME;
344
345 do_posix_clock_monotonic_gettime(&uptime);
346 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
c5dd9c2b
LCC		 347
348 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
349 sinfo->rx_bytes = sta->rx_bytes;
350 sinfo->tx_bytes = sta->tx_bytes;
98c8a60a
JM		 351 sinfo->rx_packets = sta->rx_packets;
352 sinfo->tx_packets = sta->tx_packets;
b206b4ef
BR		 353 sinfo->tx_retries = sta->tx_retry_count;
354 sinfo->tx_failed = sta->tx_retry_failed;
5a5c731a 355 sinfo->rx_dropped_misc = sta->rx_dropped;
c5dd9c2b 356
19deffbe
JL		 357 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
358 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
541a45a1 359 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
420e7fab 360 sinfo->signal = (s8)sta->last_signal;
541a45a1 361 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
420e7fab
HR		 362 }
363
364 sinfo->txrate.flags = 0;
365 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)
366 sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS;
367 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
368 sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
369 if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI)
370 sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
3af6334c
FF		 371 rate_idx_to_bitrate(&sinfo->txrate, sta, sta->last_tx_rate.idx);
372
373 sinfo->rxrate.flags = 0;
374 if (sta->last_rx_rate_flag & RX_FLAG_HT)
375 sinfo->rxrate.flags |= RATE_INFO_FLAGS_MCS;
376 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
377 sinfo->rxrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
378 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
379 sinfo->rxrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
380 rate_idx_to_bitrate(&sinfo->rxrate, sta, sta->last_rx_rate_idx);
420e7fab 381
902acc78 382 if (ieee80211_vif_is_mesh(&sdata->vif)) {
c5dd9c2b 383#ifdef CONFIG_MAC80211_MESH
c5dd9c2b
LCC		 384 sinfo->filled |= STATION_INFO_LLID |
385 STATION_INFO_PLID |
386 STATION_INFO_PLINK_STATE;
387
388 sinfo->llid = le16_to_cpu(sta->llid);
389 sinfo->plid = le16_to_cpu(sta->plid);
390 sinfo->plink_state = sta->plink_state;
c5dd9c2b 391#endif
902acc78 392 }
f4263c98
PS		 393
394 sinfo->bss_param.flags = 0;
395 if (sdata->vif.bss_conf.use_cts_prot)
396 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
397 if (sdata->vif.bss_conf.use_short_preamble)
398 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
399 if (sdata->vif.bss_conf.use_short_slot)
400 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
401 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
402 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
c5dd9c2b
LCC		 403}
404
405
406static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
407 int idx, u8 *mac, struct station_info *sinfo)
408{
3b53fde8 409 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
c5dd9c2b 410 struct sta_info *sta;
d0709a65
JB		 411 int ret = -ENOENT;
412
413 rcu_read_lock();
c5dd9c2b 414
3b53fde8 415 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 416 if (sta) {
417 ret = 0;
17741cdc 418 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 419 sta_set_sinfo(sta, sinfo);
420 }
c5dd9c2b 421
d0709a65 422 rcu_read_unlock();
c5dd9c2b 423
d0709a65 424 return ret;
c5dd9c2b
LCC		 425}
426
1289723e
HS		 427static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
428 int idx, struct survey_info *survey)
429{
430 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
431
1289723e
HS		 432 return drv_get_survey(local, idx, survey);
433}
434
7bbdd2d9 435static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 436 u8 *mac, struct station_info *sinfo)
7bbdd2d9 437{
abe60632 438 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
7bbdd2d9 439 struct sta_info *sta;
d0709a65 440 int ret = -ENOENT;
7bbdd2d9 441
d0709a65 442 rcu_read_lock();
7bbdd2d9 443
0e5ded5a 444 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 445 if (sta) {
446 ret = 0;
447 sta_set_sinfo(sta, sinfo);
448 }
449
450 rcu_read_unlock();
451
452 return ret;
7bbdd2d9
JB		 453}
454
5dfdaf58
JB		 455/*
456 * This handles both adding a beacon and setting new beacon info
457 */
458static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
459 struct beacon_parameters *params)
460{
461 struct beacon_data *new, *old;
462 int new_head_len, new_tail_len;
463 int size;
464 int err = -EINVAL;
465
466 old = sdata->u.ap.beacon;
467
468 /* head must not be zero-length */
469 if (params->head && !params->head_len)
470 return -EINVAL;
471
472 /*
473 * This is a kludge. beacon interval should really be part
474 * of the beacon information.
475 */
57c4d7b4
JB		 476 if (params->interval &&
477 (sdata->vif.bss_conf.beacon_int != params->interval)) {
478 sdata->vif.bss_conf.beacon_int = params->interval;
479 ieee80211_bss_info_change_notify(sdata,
480 BSS_CHANGED_BEACON_INT);
5dfdaf58
JB		 481 }
482
483 /* Need to have a beacon head if we don't have one yet */
484 if (!params->head && !old)
485 return err;
486
487 /* sorry, no way to start beaconing without dtim period */
488 if (!params->dtim_period && !old)
489 return err;
490
491 /* new or old head? */
492 if (params->head)
493 new_head_len = params->head_len;
494 else
495 new_head_len = old->head_len;
496
497 /* new or old tail? */
498 if (params->tail || !old)
499 /* params->tail_len will be zero for !params->tail */
500 new_tail_len = params->tail_len;
501 else
502 new_tail_len = old->tail_len;
503
504 size = sizeof(*new) + new_head_len + new_tail_len;
505
506 new = kzalloc(size, GFP_KERNEL);
507 if (!new)
508 return -ENOMEM;
509
510 /* start filling the new info now */
511
512 /* new or old dtim period? */
513 if (params->dtim_period)
514 new->dtim_period = params->dtim_period;
515 else
516 new->dtim_period = old->dtim_period;
517
518 /*
519 * pointers go into the block we allocated,
520 * memory is | beacon_data | head | tail |
521 */
522 new->head = ((u8 *) new) + sizeof(*new);
523 new->tail = new->head + new_head_len;
524 new->head_len = new_head_len;
525 new->tail_len = new_tail_len;
526
527 /* copy in head */
528 if (params->head)
529 memcpy(new->head, params->head, new_head_len);
530 else
531 memcpy(new->head, old->head, new_head_len);
532
533 /* copy in optional tail */
534 if (params->tail)
535 memcpy(new->tail, params->tail, new_tail_len);
536 else
537 if (old)
538 memcpy(new->tail, old->tail, new_tail_len);
539
19885c4f
JB		 540 sdata->vif.bss_conf.dtim_period = new->dtim_period;
541
5dfdaf58
JB		 542 rcu_assign_pointer(sdata->u.ap.beacon, new);
543
544 synchronize_rcu();
545
546 kfree(old);
547
2d0ddec5
JB		 548 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
549 BSS_CHANGED_BEACON);
550 return 0;
5dfdaf58
JB		 551}
552
553static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
554 struct beacon_parameters *params)
555{
14db74bc 556 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 557 struct beacon_data *old;
558
14db74bc
JB		 559 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
560
5dfdaf58
JB		 561 old = sdata->u.ap.beacon;
562
563 if (old)
564 return -EALREADY;
565
566 return ieee80211_config_beacon(sdata, params);
567}
568
569static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
570 struct beacon_parameters *params)
571{
14db74bc 572 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 573 struct beacon_data *old;
574
14db74bc
JB		 575 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
576
5dfdaf58
JB		 577 old = sdata->u.ap.beacon;
578
579 if (!old)
580 return -ENOENT;
581
582 return ieee80211_config_beacon(sdata, params);
583}
584
585static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
586{
14db74bc 587 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 588 struct beacon_data *old;
589
14db74bc
JB		 590 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
591
5dfdaf58
JB		 592 old = sdata->u.ap.beacon;
593
594 if (!old)
595 return -ENOENT;
596
597 rcu_assign_pointer(sdata->u.ap.beacon, NULL);
598 synchronize_rcu();
599 kfree(old);
600
2d0ddec5
JB		 601 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
602 return 0;
5dfdaf58
JB		 603}
604
4fd6931e
JB		 605/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
606struct iapp_layer2_update {
607 u8 da[ETH_ALEN]; /* broadcast */
608 u8 sa[ETH_ALEN]; /* STA addr */
609 __be16 len; /* 6 */
610 u8 dsap; /* 0 */
611 u8 ssap; /* 0 */
612 u8 control;
613 u8 xid_info[3];
bc10502d 614} __packed;
4fd6931e
JB		 615
616static void ieee80211_send_layer2_update(struct sta_info *sta)
617{
618 struct iapp_layer2_update *msg;
619 struct sk_buff *skb;
620
621 /* Send Level 2 Update Frame to update forwarding tables in layer 2
622 * bridge devices */
623
624 skb = dev_alloc_skb(sizeof(*msg));
625 if (!skb)
626 return;
627 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
628
629 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
630 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
631
632 memset(msg->da, 0xff, ETH_ALEN);
17741cdc 633 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 634 msg->len = htons(6);
635 msg->dsap = 0;
636 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
637 msg->control = 0xaf; /* XID response lsb.1111F101.
638 * F=0 (no poll command; unsolicited frame) */
639 msg->xid_info[0] = 0x81; /* XID format identifier */
640 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
641 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
642
d0709a65
JB		 643 skb->dev = sta->sdata->dev;
644 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 645 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 646 netif_rx_ni(skb);
4fd6931e
JB		 647}
648
649static void sta_apply_parameters(struct ieee80211_local *local,
650 struct sta_info *sta,
651 struct station_parameters *params)
652{
f5521b13 653 unsigned long flags;
4fd6931e
JB		 654 u32 rates;
655 int i, j;
8318d78a 656 struct ieee80211_supported_band *sband;
d0709a65 657 struct ieee80211_sub_if_data *sdata = sta->sdata;
eccb8e8f 658 u32 mask, set;
4fd6931e 659
ae5eb026
JB		 660 sband = local->hw.wiphy->bands[local->oper_channel->band];
661
f5521b13 662 spin_lock_irqsave(&sta->flaglock, flags);
eccb8e8f
JB		 663 mask = params->sta_flags_mask;
664 set = params->sta_flags_set;
73651ee6 665
eccb8e8f 666 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
4fd6931e 667 sta->flags &= ~WLAN_STA_AUTHORIZED;
eccb8e8f 668 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
4fd6931e 669 sta->flags |= WLAN_STA_AUTHORIZED;
eccb8e8f 670 }
4fd6931e 671
eccb8e8f 672 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
4fd6931e 673 sta->flags &= ~WLAN_STA_SHORT_PREAMBLE;
eccb8e8f 674 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
4fd6931e 675 sta->flags |= WLAN_STA_SHORT_PREAMBLE;
eccb8e8f 676 }
4fd6931e 677
eccb8e8f 678 if (mask & BIT(NL80211_STA_FLAG_WME)) {
4fd6931e 679 sta->flags &= ~WLAN_STA_WME;
eccb8e8f 680 if (set & BIT(NL80211_STA_FLAG_WME))
4fd6931e 681 sta->flags |= WLAN_STA_WME;
eccb8e8f 682 }
5394af4d 683
eccb8e8f 684 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
5394af4d 685 sta->flags &= ~WLAN_STA_MFP;
eccb8e8f 686 if (set & BIT(NL80211_STA_FLAG_MFP))
5394af4d 687 sta->flags |= WLAN_STA_MFP;
4fd6931e 688 }
b39c48fa
JC		 689
690 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
691 sta->flags &= ~WLAN_STA_AUTH;
692 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
693 sta->flags |= WLAN_STA_AUTH;
694 }
f5521b13 695 spin_unlock_irqrestore(&sta->flaglock, flags);
4fd6931e 696
51b50fbe
JB		 697 /*
698 * cfg80211 validates this (1-2007) and allows setting the AID
699 * only when creating a new station entry
700 */
701 if (params->aid)
702 sta->sta.aid = params->aid;
703
73651ee6
JB		 704 /*
705 * FIXME: updating the following information is racy when this
706 * function is called from ieee80211_change_station().
707 * However, all this information should be static so
708 * maybe we should just reject attemps to change it.
709 */
710
4fd6931e
JB		 711 if (params->listen_interval >= 0)
712 sta->listen_interval = params->listen_interval;
713
714 if (params->supported_rates) {
715 rates = 0;
8318d78a 716
4fd6931e
JB		 717 for (i = 0; i < params->supported_rates_len; i++) {
718 int rate = (params->supported_rates[i] & 0x7f) * 5;
8318d78a
JB		 719 for (j = 0; j < sband->n_bitrates; j++) {
720 if (sband->bitrates[j].bitrate == rate)
4fd6931e
JB		 721 rates |= BIT(j);
722 }
723 }
323ce79a 724 sta->sta.supp_rates[local->oper_channel->band] = rates;
4fd6931e 725 }
c5dd9c2b 726
d9fe60de 727 if (params->ht_capa)
ae5eb026
JB		 728 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
729 params->ht_capa,
d9fe60de 730 &sta->sta.ht_cap);
36aedc90 731
9c3990aa 732 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 733#ifdef CONFIG_MAC80211_MESH
9c3990aa
JC		 734 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
735 switch (params->plink_state) {
736 case PLINK_LISTEN:
737 case PLINK_ESTAB:
738 case PLINK_BLOCKED:
739 sta->plink_state = params->plink_state;
740 break;
741 default:
742 /* nothing */
743 break;
744 }
745 else
746 switch (params->plink_action) {
747 case PLINK_ACTION_OPEN:
748 mesh_plink_open(sta);
749 break;
750 case PLINK_ACTION_BLOCK:
751 mesh_plink_block(sta);
752 break;
753 }
4daf50f2 754#endif
902acc78 755 }
4fd6931e
JB		 756}
757
758static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
759 u8 *mac, struct station_parameters *params)
760{
14db74bc 761 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 762 struct sta_info *sta;
763 struct ieee80211_sub_if_data *sdata;
73651ee6 764 int err;
b8d476c8 765 int layer2_update;
4fd6931e 766
4fd6931e
JB		 767 if (params->vlan) {
768 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
769
05c914fe
JB		 770 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
771 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 772 return -EINVAL;
773 } else
774 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
775
47846c9b 776 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
03e4497e
JB		 777 return -EINVAL;
778
779 if (is_multicast_ether_addr(mac))
780 return -EINVAL;
781
782 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 783 if (!sta)
784 return -ENOMEM;
4fd6931e
JB		 785
786 sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC;
787
788 sta_apply_parameters(local, sta, params);
789
4b7679a5 790 rate_control_rate_init(sta);
4fd6931e 791
b8d476c8
JM		 792 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
793 sdata->vif.type == NL80211_IFTYPE_AP;
794
34e89507 795 err = sta_info_insert_rcu(sta);
73651ee6 796 if (err) {
73651ee6
JB		 797 rcu_read_unlock();
798 return err;
799 }
800
b8d476c8 801 if (layer2_update)
73651ee6
JB		 802 ieee80211_send_layer2_update(sta);
803
804 rcu_read_unlock();
805
4fd6931e
JB		 806 return 0;
807}
808
809static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
810 u8 *mac)
811{
14db74bc
JB		 812 struct ieee80211_local *local = wiphy_priv(wiphy);
813 struct ieee80211_sub_if_data *sdata;
4fd6931e 814
14db74bc
JB		 815 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
816
34e89507
JB		 817 if (mac)
818 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 819
34e89507 820 sta_info_flush(local, sdata);
4fd6931e
JB		 821 return 0;
822}
823
824static int ieee80211_change_station(struct wiphy *wiphy,
825 struct net_device *dev,
826 u8 *mac,
827 struct station_parameters *params)
828{
abe60632 829 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 830 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 831 struct sta_info *sta;
832 struct ieee80211_sub_if_data *vlansdata;
833
98dd6a57
JB		 834 rcu_read_lock();
835
0e5ded5a 836 sta = sta_info_get_bss(sdata, mac);
98dd6a57
JB		 837 if (!sta) {
838 rcu_read_unlock();
4fd6931e 839 return -ENOENT;
98dd6a57 840 }
4fd6931e 841
d0709a65 842 if (params->vlan && params->vlan != sta->sdata->dev) {
4fd6931e
JB		 843 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
844
05c914fe
JB		 845 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
846 vlansdata->vif.type != NL80211_IFTYPE_AP) {
98dd6a57 847 rcu_read_unlock();
4fd6931e 848 return -EINVAL;
98dd6a57 849 }
4fd6931e 850
9bc383de 851 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c
JB		 852 if (vlansdata->u.vlan.sta) {
853 rcu_read_unlock();
f14543ee 854 return -EBUSY;
3305443c 855 }
f14543ee
FF		 856
857 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
858 }
859
14db74bc 860 sta->sdata = vlansdata;
4fd6931e
JB		 861 ieee80211_send_layer2_update(sta);
862 }
863
864 sta_apply_parameters(local, sta, params);
865
98dd6a57
JB		 866 rcu_read_unlock();
867
808118cb
JY		 868 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
869 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
870 ieee80211_recalc_ps(local, -1);
871
4fd6931e
JB		 872 return 0;
873}
874
c5dd9c2b
LCC		 875#ifdef CONFIG_MAC80211_MESH
876static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
877 u8 *dst, u8 *next_hop)
878{
14db74bc 879 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 880 struct mesh_path *mpath;
881 struct sta_info *sta;
882 int err;
883
14db74bc
JB		 884 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
885
d0709a65 886 rcu_read_lock();
abe60632 887 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 888 if (!sta) {
889 rcu_read_unlock();
c5dd9c2b 890 return -ENOENT;
d0709a65 891 }
c5dd9c2b 892
f698d856 893 err = mesh_path_add(dst, sdata);
d0709a65
JB		 894 if (err) {
895 rcu_read_unlock();
c5dd9c2b 896 return err;
d0709a65 897 }
c5dd9c2b 898
f698d856 899 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 900 if (!mpath) {
901 rcu_read_unlock();
c5dd9c2b
LCC		 902 return -ENXIO;
903 }
904 mesh_path_fix_nexthop(mpath, sta);
d0709a65 905
c5dd9c2b
LCC		 906 rcu_read_unlock();
907 return 0;
908}
909
910static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
911 u8 *dst)
912{
f698d856
JBG		 913 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
914
c5dd9c2b 915 if (dst)
f698d856 916 return mesh_path_del(dst, sdata);
c5dd9c2b 917
f698d856 918 mesh_path_flush(sdata);
c5dd9c2b
LCC		 919 return 0;
920}
921
922static int ieee80211_change_mpath(struct wiphy *wiphy,
923 struct net_device *dev,
924 u8 *dst, u8 *next_hop)
925{
14db74bc 926 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 927 struct mesh_path *mpath;
928 struct sta_info *sta;
929
14db74bc
JB		 930 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
931
d0709a65
JB		 932 rcu_read_lock();
933
abe60632 934 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 935 if (!sta) {
936 rcu_read_unlock();
c5dd9c2b 937 return -ENOENT;
d0709a65 938 }
c5dd9c2b 939
f698d856 940 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 941 if (!mpath) {
942 rcu_read_unlock();
c5dd9c2b
LCC		 943 return -ENOENT;
944 }
945
946 mesh_path_fix_nexthop(mpath, sta);
d0709a65 947
c5dd9c2b
LCC		 948 rcu_read_unlock();
949 return 0;
950}
951
952static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
953 struct mpath_info *pinfo)
954{
a3836e02
JB		 955 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
956
957 if (next_hop_sta)
958 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 959 else
960 memset(next_hop, 0, ETH_ALEN);
961
f5ea9120
JB		 962 pinfo->generation = mesh_paths_generation;
963
c5dd9c2b 964 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 965 MPATH_INFO_SN |
c5dd9c2b
LCC		 966 MPATH_INFO_METRIC |
967 MPATH_INFO_EXPTIME |
968 MPATH_INFO_DISCOVERY_TIMEOUT |
969 MPATH_INFO_DISCOVERY_RETRIES |
970 MPATH_INFO_FLAGS;
971
972 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 973 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 974 pinfo->metric = mpath->metric;
975 if (time_before(jiffies, mpath->exp_time))
976 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
977 pinfo->discovery_timeout =
978 jiffies_to_msecs(mpath->discovery_timeout);
979 pinfo->discovery_retries = mpath->discovery_retries;
980 pinfo->flags = 0;
981 if (mpath->flags & MESH_PATH_ACTIVE)
982 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
983 if (mpath->flags & MESH_PATH_RESOLVING)
984 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 985 if (mpath->flags & MESH_PATH_SN_VALID)
986 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 987 if (mpath->flags & MESH_PATH_FIXED)
988 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
989 if (mpath->flags & MESH_PATH_RESOLVING)
990 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
991
992 pinfo->flags = mpath->flags;
993}
994
995static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
996 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
997
998{
14db74bc 999 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1000 struct mesh_path *mpath;
1001
14db74bc
JB		 1002 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1003
c5dd9c2b 1004 rcu_read_lock();
f698d856 1005 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 1006 if (!mpath) {
1007 rcu_read_unlock();
1008 return -ENOENT;
1009 }
1010 memcpy(dst, mpath->dst, ETH_ALEN);
1011 mpath_set_pinfo(mpath, next_hop, pinfo);
1012 rcu_read_unlock();
1013 return 0;
1014}
1015
1016static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1017 int idx, u8 *dst, u8 *next_hop,
1018 struct mpath_info *pinfo)
1019{
14db74bc 1020 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1021 struct mesh_path *mpath;
1022
14db74bc
JB		 1023 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1024
c5dd9c2b 1025 rcu_read_lock();
f698d856 1026 mpath = mesh_path_lookup_by_idx(idx, sdata);
c5dd9c2b
LCC		 1027 if (!mpath) {
1028 rcu_read_unlock();
1029 return -ENOENT;
1030 }
1031 memcpy(dst, mpath->dst, ETH_ALEN);
1032 mpath_set_pinfo(mpath, next_hop, pinfo);
1033 rcu_read_unlock();
1034 return 0;
1035}
93da9cc1 1036
24bdd9f4 1037static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1038 struct net_device *dev,
1039 struct mesh_config *conf)
1040{
1041 struct ieee80211_sub_if_data *sdata;
1042 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1043
93da9cc1 1044 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1045 return 0;
1046}
1047
1048static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1049{
1050 return (mask >> (parm-1)) & 0x1;
1051}
1052
c80d545d
JC		 1053static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1054 const struct mesh_setup *setup)
1055{
1056 u8 *new_ie;
1057 const u8 *old_ie;
1058
581a8b0f 1059 /* allocate information elements */
c80d545d 1060 new_ie = NULL;
581a8b0f 1061 old_ie = ifmsh->ie;
c80d545d 1062
581a8b0f
JC		 1063 if (setup->ie_len) {
1064 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1065 GFP_KERNEL);
1066 if (!new_ie)
1067 return -ENOMEM;
1068 }
581a8b0f
JC		 1069 ifmsh->ie_len = setup->ie_len;
1070 ifmsh->ie = new_ie;
1071 kfree(old_ie);
c80d545d
JC		 1072
1073 /* now copy the rest of the setup parameters */
1074 ifmsh->mesh_id_len = setup->mesh_id_len;
1075 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1076 ifmsh->mesh_pp_id = setup->path_sel_proto;
1077 ifmsh->mesh_pm_id = setup->path_metric;
b130e5ce
JC		 1078 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1079 if (setup->is_authenticated)
1080 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1081 if (setup->is_secure)
1082 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d
JC		 1083
1084 return 0;
1085}
1086
24bdd9f4 1087static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1088 struct net_device *dev, u32 mask,
1089 const struct mesh_config *nconf)
93da9cc1 1090{
1091 struct mesh_config *conf;
1092 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1093 struct ieee80211_if_mesh *ifmsh;
1094
93da9cc1 1095 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1096 ifmsh = &sdata->u.mesh;
93da9cc1 1097
93da9cc1 1098 /* Set the config options which we are interested in setting */
1099 conf = &(sdata->u.mesh.mshcfg);
1100 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1101 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1102 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1103 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1104 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1105 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1106 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1107 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1108 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1109 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1110 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1111 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21
JC		 1112 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1113 conf->dot11MeshTTL = nconf->element_ttl;
93da9cc1 1114 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1115 conf->auto_open_plinks = nconf->auto_open_plinks;
1116 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1117 conf->dot11MeshHWMPmaxPREQretries =
1118 nconf->dot11MeshHWMPmaxPREQretries;
1119 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1120 conf->path_refresh_time = nconf->path_refresh_time;
1121 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1122 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1123 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1124 conf->dot11MeshHWMPactivePathTimeout =
1125 nconf->dot11MeshHWMPactivePathTimeout;
1126 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1127 conf->dot11MeshHWMPpreqMinInterval =
1128 nconf->dot11MeshHWMPpreqMinInterval;
1129 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1130 mask))
1131 conf->dot11MeshHWMPnetDiameterTraversalTime =
1132 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1133 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1134 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1135 ieee80211_mesh_root_setup(ifmsh);
1136 }
93da9cc1 1137 return 0;
1138}
1139
29cbe68c
JB		 1140static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1141 const struct mesh_config *conf,
1142 const struct mesh_setup *setup)
1143{
1144 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1145 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1146 int err;
29cbe68c 1147
c80d545d
JC		 1148 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1149 err = copy_mesh_setup(ifmsh, setup);
1150 if (err)
1151 return err;
29cbe68c
JB		 1152 ieee80211_start_mesh(sdata);
1153
1154 return 0;
1155}
1156
1157static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1158{
1159 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1160
1161 ieee80211_stop_mesh(sdata);
1162
1163 return 0;
1164}
c5dd9c2b
LCC		 1165#endif
1166
9f1ba906
JM		 1167static int ieee80211_change_bss(struct wiphy *wiphy,
1168 struct net_device *dev,
1169 struct bss_parameters *params)
1170{
9f1ba906
JM		 1171 struct ieee80211_sub_if_data *sdata;
1172 u32 changed = 0;
1173
9f1ba906
JM		 1174 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1175
9f1ba906 1176 if (params->use_cts_prot >= 0) {
bda3933a 1177 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1178 changed |= BSS_CHANGED_ERP_CTS_PROT;
1179 }
1180 if (params->use_short_preamble >= 0) {
bda3933a 1181 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1182 params->use_short_preamble;
1183 changed |= BSS_CHANGED_ERP_PREAMBLE;
1184 }
43d35343
FF		 1185
1186 if (!sdata->vif.bss_conf.use_short_slot &&
1187 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1188 sdata->vif.bss_conf.use_short_slot = true;
1189 changed |= BSS_CHANGED_ERP_SLOT;
1190 }
1191
9f1ba906 1192 if (params->use_short_slot_time >= 0) {
bda3933a 1193 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1194 params->use_short_slot_time;
1195 changed |= BSS_CHANGED_ERP_SLOT;
1196 }
1197
90c97a04
JM		 1198 if (params->basic_rates) {
1199 int i, j;
1200 u32 rates = 0;
1201 struct ieee80211_local *local = wiphy_priv(wiphy);
1202 struct ieee80211_supported_band *sband =
1203 wiphy->bands[local->oper_channel->band];
1204
1205 for (i = 0; i < params->basic_rates_len; i++) {
1206 int rate = (params->basic_rates[i] & 0x7f) * 5;
1207 for (j = 0; j < sband->n_bitrates; j++) {
1208 if (sband->bitrates[j].bitrate == rate)
1209 rates |= BIT(j);
1210 }
1211 }
1212 sdata->vif.bss_conf.basic_rates = rates;
1213 changed |= BSS_CHANGED_BASIC_RATES;
1214 }
1215
7b7b5e56
FF		 1216 if (params->ap_isolate >= 0) {
1217 if (params->ap_isolate)
1218 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1219 else
1220 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1221 }
1222
80d7e403
HS		 1223 if (params->ht_opmode >= 0) {
1224 sdata->vif.bss_conf.ht_operation_mode =
1225 (u16) params->ht_opmode;
1226 changed |= BSS_CHANGED_HT;
1227 }
1228
9f1ba906
JM		 1229 ieee80211_bss_info_change_notify(sdata, changed);
1230
1231 return 0;
1232}
1233
31888487
JM		 1234static int ieee80211_set_txq_params(struct wiphy *wiphy,
1235 struct ieee80211_txq_params *params)
1236{
1237 struct ieee80211_local *local = wiphy_priv(wiphy);
1238 struct ieee80211_tx_queue_params p;
1239
1240 if (!local->ops->conf_tx)
1241 return -EOPNOTSUPP;
1242
1243 memset(&p, 0, sizeof(p));
1244 p.aifs = params->aifs;
1245 p.cw_max = params->cwmax;
1246 p.cw_min = params->cwmin;
1247 p.txop = params->txop;
ab13315a
KV		 1248
1249 /*
1250 * Setting tx queue params disables u-apsd because it's only
1251 * called in master mode.
1252 */
1253 p.uapsd = false;
1254
24487981 1255 if (drv_conf_tx(local, params->queue, &p)) {
0fb9a9ec
JP		 1256 wiphy_debug(local->hw.wiphy,
1257 "failed to set TX queue parameters for queue %d\n",
1258 params->queue);
31888487
JM		 1259 return -EINVAL;
1260 }
1261
1262 return 0;
1263}
1264
72bdcf34 1265static int ieee80211_set_channel(struct wiphy *wiphy,
f444de05 1266 struct net_device *netdev,
72bdcf34 1267 struct ieee80211_channel *chan,
094d05dc 1268 enum nl80211_channel_type channel_type)
72bdcf34
JM		 1269{
1270 struct ieee80211_local *local = wiphy_priv(wiphy);
0aaffa9b 1271 struct ieee80211_sub_if_data *sdata = NULL;
eeabee7e
BG		 1272 struct ieee80211_channel *old_oper;
1273 enum nl80211_channel_type old_oper_type;
1274 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
0aaffa9b
JB		 1275
1276 if (netdev)
1277 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
72bdcf34 1278
f444de05
JB		 1279 switch (ieee80211_get_channel_mode(local, NULL)) {
1280 case CHAN_MODE_HOPPING:
1281 return -EBUSY;
1282 case CHAN_MODE_FIXED:
0aaffa9b
JB		 1283 if (local->oper_channel != chan)
1284 return -EBUSY;
1285 if (!sdata && local->_oper_channel_type == channel_type)
f444de05 1286 return 0;
0aaffa9b 1287 break;
f444de05
JB		 1288 case CHAN_MODE_UNDEFINED:
1289 break;
1290 }
72bdcf34 1291
eeabee7e
BG		 1292 if (sdata)
1293 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1294 old_oper_type = local->_oper_channel_type;
72bdcf34 1295
0aaffa9b
JB		 1296 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1297 return -EBUSY;
1298
eeabee7e
BG		 1299 old_oper = local->oper_channel;
1300 local->oper_channel = chan;
1301
1302 /* Update driver if changes were actually made. */
1303 if ((old_oper != local->oper_channel) ||
1304 (old_oper_type != local->_oper_channel_type))
1305 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1306
1307 if ((sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR) &&
1308 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
0aaffa9b
JB		 1309 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1310
1311 return 0;
72bdcf34
JM		 1312}
1313
665af4fc 1314#ifdef CONFIG_PM
ff1b6e69
JB		 1315static int ieee80211_suspend(struct wiphy *wiphy,
1316 struct cfg80211_wowlan *wowlan)
665af4fc 1317{
eecc4800 1318 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1319}
1320
1321static int ieee80211_resume(struct wiphy *wiphy)
1322{
1323 return __ieee80211_resume(wiphy_priv(wiphy));
1324}
1325#else
1326#define ieee80211_suspend NULL
1327#define ieee80211_resume NULL
1328#endif
1329
2a519311
JB		 1330static int ieee80211_scan(struct wiphy *wiphy,
1331 struct net_device *dev,
1332 struct cfg80211_scan_request *req)
1333{
2ca27bcf 1334 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2a519311 1335
2ca27bcf
JB		 1336 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1337 case NL80211_IFTYPE_STATION:
1338 case NL80211_IFTYPE_ADHOC:
1339 case NL80211_IFTYPE_MESH_POINT:
1340 case NL80211_IFTYPE_P2P_CLIENT:
1341 break;
1342 case NL80211_IFTYPE_P2P_GO:
1343 if (sdata->local->ops->hw_scan)
1344 break;
e9d7732e
JB		 1345 /*
1346 * FIXME: implement NoA while scanning in software,
1347 * for now fall through to allow scanning only when
1348 * beaconing hasn't been configured yet
1349 */
2ca27bcf
JB		 1350 case NL80211_IFTYPE_AP:
1351 if (sdata->u.ap.beacon)
1352 return -EOPNOTSUPP;
1353 break;
1354 default:
1355 return -EOPNOTSUPP;
1356 }
2a519311
JB		 1357
1358 return ieee80211_request_scan(sdata, req);
1359}
1360
79f460ca
LC		 1361static int
1362ieee80211_sched_scan_start(struct wiphy *wiphy,
1363 struct net_device *dev,
1364 struct cfg80211_sched_scan_request *req)
1365{
1366 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1367
1368 if (!sdata->local->ops->sched_scan_start)
1369 return -EOPNOTSUPP;
1370
1371 return ieee80211_request_sched_scan_start(sdata, req);
1372}
1373
1374static int
85a9994a 1375ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1376{
1377 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1378
1379 if (!sdata->local->ops->sched_scan_stop)
1380 return -EOPNOTSUPP;
1381
85a9994a 1382 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1383}
1384
636a5d36
JM		 1385static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1386 struct cfg80211_auth_request *req)
1387{
77fdaa12 1388 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1389}
1390
1391static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1392 struct cfg80211_assoc_request *req)
1393{
f444de05
JB		 1394 struct ieee80211_local *local = wiphy_priv(wiphy);
1395 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1396
1397 switch (ieee80211_get_channel_mode(local, sdata)) {
1398 case CHAN_MODE_HOPPING:
1399 return -EBUSY;
1400 case CHAN_MODE_FIXED:
1401 if (local->oper_channel == req->bss->channel)
1402 break;
1403 return -EBUSY;
1404 case CHAN_MODE_UNDEFINED:
1405 break;
1406 }
1407
77fdaa12 1408 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1409}
1410
1411static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1412 struct cfg80211_deauth_request *req,
1413 void *cookie)
636a5d36 1414{
667503dd
JB		 1415 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1416 req, cookie);
636a5d36
JM		 1417}
1418
1419static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1420 struct cfg80211_disassoc_request *req,
1421 void *cookie)
636a5d36 1422{
667503dd
JB		 1423 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1424 req, cookie);
636a5d36
JM		 1425}
1426
af8cdcd8
JB		 1427static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1428 struct cfg80211_ibss_params *params)
1429{
f444de05 1430 struct ieee80211_local *local = wiphy_priv(wiphy);
af8cdcd8
JB		 1431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1432
f444de05
JB		 1433 switch (ieee80211_get_channel_mode(local, sdata)) {
1434 case CHAN_MODE_HOPPING:
1435 return -EBUSY;
1436 case CHAN_MODE_FIXED:
1437 if (!params->channel_fixed)
1438 return -EBUSY;
1439 if (local->oper_channel == params->channel)
1440 break;
1441 return -EBUSY;
1442 case CHAN_MODE_UNDEFINED:
1443 break;
1444 }
1445
af8cdcd8
JB		 1446 return ieee80211_ibss_join(sdata, params);
1447}
1448
1449static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1450{
1451 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1452
1453 return ieee80211_ibss_leave(sdata);
1454}
1455
b9a5f8ca
JM		 1456static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1457{
1458 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1459 int err;
b9a5f8ca 1460
f23a4780
AN		 1461 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1462 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1463
1464 if (err)
1465 return err;
1466 }
1467
310bc676
LT		 1468 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1469 err = drv_set_coverage_class(local, wiphy->coverage_class);
1470
1471 if (err)
1472 return err;
1473 }
1474
b9a5f8ca 1475 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1476 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1477
24487981
JB		 1478 if (err)
1479 return err;
b9a5f8ca
JM		 1480 }
1481
1482 if (changed & WIPHY_PARAM_RETRY_SHORT)
1483 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1484 if (changed & WIPHY_PARAM_RETRY_LONG)
1485 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1486 if (changed &
1487 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1488 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1489
1490 return 0;
1491}
1492
7643a2c3 1493static int ieee80211_set_tx_power(struct wiphy *wiphy,
fa61cf70 1494 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 1495{
1496 struct ieee80211_local *local = wiphy_priv(wiphy);
1497 struct ieee80211_channel *chan = local->hw.conf.channel;
1498 u32 changes = 0;
7643a2c3
JB		 1499
1500 switch (type) {
fa61cf70 1501 case NL80211_TX_POWER_AUTOMATIC:
7643a2c3
JB		 1502 local->user_power_level = -1;
1503 break;
fa61cf70
JO		 1504 case NL80211_TX_POWER_LIMITED:
1505 if (mbm < 0 || (mbm % 100))
1506 return -EOPNOTSUPP;
1507 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1508 break;
fa61cf70
JO		 1509 case NL80211_TX_POWER_FIXED:
1510 if (mbm < 0 || (mbm % 100))
1511 return -EOPNOTSUPP;
7643a2c3 1512 /* TODO: move to cfg80211 when it knows the channel */
fa61cf70 1513 if (MBM_TO_DBM(mbm) > chan->max_power)
7643a2c3 1514 return -EINVAL;
fa61cf70 1515 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1516 break;
7643a2c3
JB		 1517 }
1518
1519 ieee80211_hw_config(local, changes);
1520
1521 return 0;
1522}
1523
1524static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1525{
1526 struct ieee80211_local *local = wiphy_priv(wiphy);
1527
1528 *dbm = local->hw.conf.power_level;
1529
7643a2c3
JB		 1530 return 0;
1531}
1532
ab737a4f 1533static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 1534 const u8 *addr)
ab737a4f
JB		 1535{
1536 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1537
1538 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1539
1540 return 0;
1541}
1542
1f87f7d3
JB		 1543static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1544{
1545 struct ieee80211_local *local = wiphy_priv(wiphy);
1546
1547 drv_rfkill_poll(local);
1548}
1549
aff89a9b 1550#ifdef CONFIG_NL80211_TESTMODE
99783e2c 1551static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
aff89a9b
JB		 1552{
1553 struct ieee80211_local *local = wiphy_priv(wiphy);
1554
1555 if (!local->ops->testmode_cmd)
1556 return -EOPNOTSUPP;
1557
1558 return local->ops->testmode_cmd(&local->hw, data, len);
1559}
1560#endif
1561
0f78231b
JB		 1562int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1563 enum ieee80211_smps_mode smps_mode)
1564{
1565 const u8 *ap;
1566 enum ieee80211_smps_mode old_req;
1567 int err;
1568
243e6df4
JB		 1569 lockdep_assert_held(&sdata->u.mgd.mtx);
1570
0f78231b
JB		 1571 old_req = sdata->u.mgd.req_smps;
1572 sdata->u.mgd.req_smps = smps_mode;
1573
1574 if (old_req == smps_mode &&
1575 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1576 return 0;
1577
1578 /*
1579 * If not associated, or current association is not an HT
1580 * association, there's no need to send an action frame.
1581 */
1582 if (!sdata->u.mgd.associated ||
0aaffa9b 1583 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
0f78231b 1584 mutex_lock(&sdata->local->iflist_mtx);
025e6be2 1585 ieee80211_recalc_smps(sdata->local);
0f78231b
JB		 1586 mutex_unlock(&sdata->local->iflist_mtx);
1587 return 0;
1588 }
1589
0c1ad2ca 1590 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 1591
1592 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1593 if (sdata->u.mgd.powersave)
1594 smps_mode = IEEE80211_SMPS_DYNAMIC;
1595 else
1596 smps_mode = IEEE80211_SMPS_OFF;
1597 }
1598
1599 /* send SM PS frame to AP */
1600 err = ieee80211_send_smps_action(sdata, smps_mode,
1601 ap, ap);
1602 if (err)
1603 sdata->u.mgd.req_smps = old_req;
1604
1605 return err;
1606}
1607
bc92afd9
JB		 1608static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1609 bool enabled, int timeout)
1610{
1611 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1612 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 1613
e5de30c9
BP		 1614 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1615 return -EOPNOTSUPP;
1616
bc92afd9
JB		 1617 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1618 return -EOPNOTSUPP;
1619
1620 if (enabled == sdata->u.mgd.powersave &&
ff616381 1621 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 1622 return 0;
1623
1624 sdata->u.mgd.powersave = enabled;
ff616381 1625 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 1626
0f78231b
JB		 1627 /* no change, but if automatic follow powersave */
1628 mutex_lock(&sdata->u.mgd.mtx);
1629 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1630 mutex_unlock(&sdata->u.mgd.mtx);
1631
bc92afd9
JB		 1632 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1633 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1634
1635 ieee80211_recalc_ps(local, -1);
1636
1637 return 0;
1638}
1639
a97c13c3
JO		 1640static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1641 struct net_device *dev,
1642 s32 rssi_thold, u32 rssi_hyst)
1643{
1644 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1645 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1646 struct ieee80211_vif *vif = &sdata->vif;
1647 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1648
a97c13c3
JO		 1649 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1650 rssi_hyst == bss_conf->cqm_rssi_hyst)
1651 return 0;
1652
1653 bss_conf->cqm_rssi_thold = rssi_thold;
1654 bss_conf->cqm_rssi_hyst = rssi_hyst;
1655
17e4ec14
JM		 1656 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1657 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1658 return -EOPNOTSUPP;
1659 return 0;
1660 }
1661
a97c13c3
JO		 1662 /* tell the driver upon association, unless already associated */
1663 if (sdata->u.mgd.associated)
1664 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1665
1666 return 0;
1667}
1668
9930380f
JB		 1669static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1670 struct net_device *dev,
1671 const u8 *addr,
1672 const struct cfg80211_bitrate_mask *mask)
1673{
1674 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1675 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 1676 int i, ret;
2c7e6bc9 1677
bdbfd6b5
SM		 1678 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1679 ret = drv_set_bitrate_mask(local, sdata, mask);
1680 if (ret)
1681 return ret;
1682 }
9930380f 1683
37eb0b16
JM		 1684 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1685 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
9930380f 1686
37eb0b16 1687 return 0;
9930380f
JB		 1688}
1689
21f83589
JB		 1690static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1691 struct net_device *dev,
1692 struct ieee80211_channel *chan,
1693 enum nl80211_channel_type chantype,
1694 unsigned int duration, u64 *cookie)
1695{
1696 int ret;
1697 u32 random_cookie;
1698
1699 lockdep_assert_held(&local->mtx);
1700
1701 if (local->hw_roc_cookie)
1702 return -EBUSY;
1703 /* must be nonzero */
1704 random_cookie = random32() | 1;
1705
1706 *cookie = random_cookie;
1707 local->hw_roc_dev = dev;
1708 local->hw_roc_cookie = random_cookie;
1709 local->hw_roc_channel = chan;
1710 local->hw_roc_channel_type = chantype;
1711 local->hw_roc_duration = duration;
1712 ret = drv_remain_on_channel(local, chan, chantype, duration);
1713 if (ret) {
1714 local->hw_roc_channel = NULL;
1715 local->hw_roc_cookie = 0;
1716 }
1717
1718 return ret;
1719}
1720
b8bc4b0a
JB		 1721static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1722 struct net_device *dev,
1723 struct ieee80211_channel *chan,
1724 enum nl80211_channel_type channel_type,
1725 unsigned int duration,
1726 u64 *cookie)
1727{
1728 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1729 struct ieee80211_local *local = sdata->local;
1730
1731 if (local->ops->remain_on_channel) {
1732 int ret;
1733
1734 mutex_lock(&local->mtx);
1735 ret = ieee80211_remain_on_channel_hw(local, dev,
1736 chan, channel_type,
1737 duration, cookie);
90fc4b3a 1738 local->hw_roc_for_tx = false;
21f83589
JB		 1739 mutex_unlock(&local->mtx);
1740
1741 return ret;
1742 }
b8bc4b0a
JB		 1743
1744 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1745 duration, cookie);
1746}
1747
21f83589
JB		 1748static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1749 u64 cookie)
1750{
1751 int ret;
1752
1753 lockdep_assert_held(&local->mtx);
1754
1755 if (local->hw_roc_cookie != cookie)
1756 return -ENOENT;
1757
1758 ret = drv_cancel_remain_on_channel(local);
1759 if (ret)
1760 return ret;
1761
1762 local->hw_roc_cookie = 0;
1763 local->hw_roc_channel = NULL;
1764
1765 ieee80211_recalc_idle(local);
1766
1767 return 0;
1768}
1769
b8bc4b0a
JB		 1770static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1771 struct net_device *dev,
1772 u64 cookie)
1773{
1774 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1775 struct ieee80211_local *local = sdata->local;
1776
1777 if (local->ops->cancel_remain_on_channel) {
1778 int ret;
1779
1780 mutex_lock(&local->mtx);
1781 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1782 mutex_unlock(&local->mtx);
1783
1784 return ret;
1785 }
b8bc4b0a
JB		 1786
1787 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1788}
1789
f30221e4
JB		 1790static enum work_done_result
1791ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1792{
1793 /*
1794 * Use the data embedded in the work struct for reporting
1795 * here so if the driver mangled the SKB before dropping
1796 * it (which is the only way we really should get here)
1797 * then we don't report mangled data.
1798 *
1799 * If there was no wait time, then by the time we get here
1800 * the driver will likely not have reported the status yet,
1801 * so in that case userspace will have to deal with it.
1802 */
1803
1804 if (wk->offchan_tx.wait && wk->offchan_tx.frame)
1805 cfg80211_mgmt_tx_status(wk->sdata->dev,
1806 (unsigned long) wk->offchan_tx.frame,
1807 wk->ie, wk->ie_len, false, GFP_KERNEL);
1808
1809 return WORK_DONE_DESTROY;
1810}
1811
2e161f78 1812static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
f7ca38df 1813 struct ieee80211_channel *chan, bool offchan,
2e161f78 1814 enum nl80211_channel_type channel_type,
f7ca38df 1815 bool channel_type_valid, unsigned int wait,
2e161f78 1816 const u8 *buf, size_t len, u64 *cookie)
026331c4 1817{
9d38d85d
JB		 1818 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1819 struct ieee80211_local *local = sdata->local;
1820 struct sk_buff *skb;
1821 struct sta_info *sta;
f30221e4 1822 struct ieee80211_work *wk;
9d38d85d
JB		 1823 const struct ieee80211_mgmt *mgmt = (void *)buf;
1824 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1825 IEEE80211_TX_CTL_REQ_TX_STATUS;
f30221e4 1826 bool is_offchan = false;
f7ca38df 1827
9d38d85d
JB		 1828 /* Check that we are on the requested channel for transmission */
1829 if (chan != local->tmp_channel &&
1830 chan != local->oper_channel)
f30221e4 1831 is_offchan = true;
9d38d85d
JB		 1832 if (channel_type_valid &&
1833 (channel_type != local->tmp_channel_type &&
1834 channel_type != local->_oper_channel_type))
f30221e4
JB		 1835 is_offchan = true;
1836
21f83589
JB		 1837 if (chan == local->hw_roc_channel) {
1838 /* TODO: check channel type? */
1839 is_offchan = false;
1840 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1841 }
1842
f30221e4 1843 if (is_offchan && !offchan)
9d38d85d
JB		 1844 return -EBUSY;
1845
1846 switch (sdata->vif.type) {
1847 case NL80211_IFTYPE_ADHOC:
663fcafd
JB		 1848 case NL80211_IFTYPE_AP:
1849 case NL80211_IFTYPE_AP_VLAN:
1850 case NL80211_IFTYPE_P2P_GO:
c7108a71 1851 case NL80211_IFTYPE_MESH_POINT:
663fcafd
JB		 1852 if (!ieee80211_is_action(mgmt->frame_control) ||
1853 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
9d38d85d
JB		 1854 break;
1855 rcu_read_lock();
1856 sta = sta_info_get(sdata, mgmt->da);
1857 rcu_read_unlock();
1858 if (!sta)
1859 return -ENOLINK;
1860 break;
1861 case NL80211_IFTYPE_STATION:
663fcafd 1862 case NL80211_IFTYPE_P2P_CLIENT:
9d38d85d
JB		 1863 break;
1864 default:
1865 return -EOPNOTSUPP;
1866 }
1867
1868 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1869 if (!skb)
1870 return -ENOMEM;
1871 skb_reserve(skb, local->hw.extra_tx_headroom);
1872
1873 memcpy(skb_put(skb, len), buf, len);
1874
1875 IEEE80211_SKB_CB(skb)->flags = flags;
1876
1877 skb->dev = sdata->dev;
9d38d85d
JB		 1878
1879 *cookie = (unsigned long) skb;
f30221e4 1880
5f16a436
JB		 1881 if (is_offchan && local->ops->offchannel_tx) {
1882 int ret;
1883
1884 IEEE80211_SKB_CB(skb)->band = chan->band;
1885
1886 mutex_lock(&local->mtx);
1887
1888 if (local->hw_offchan_tx_cookie) {
1889 mutex_unlock(&local->mtx);
1890 return -EBUSY;
1891 }
1892
1893 /* TODO: bitrate control, TX processing? */
1894 ret = drv_offchannel_tx(local, skb, chan, channel_type, wait);
1895
1896 if (ret == 0)
1897 local->hw_offchan_tx_cookie = *cookie;
1898 mutex_unlock(&local->mtx);
1899
1900 /*
1901 * Allow driver to return 1 to indicate it wants to have the
1902 * frame transmitted with a remain_on_channel + regular TX.
1903 */
1904 if (ret != 1)
1905 return ret;
1906 }
1907
90fc4b3a
JB		 1908 if (is_offchan && local->ops->remain_on_channel) {
1909 unsigned int duration;
1910 int ret;
1911
1912 mutex_lock(&local->mtx);
1913 /*
1914 * If the duration is zero, then the driver
1915 * wouldn't actually do anything. Set it to
1916 * 100 for now.
1917 *
1918 * TODO: cancel the off-channel operation
1919 * when we get the SKB's TX status and
1920 * the wait time was zero before.
1921 */
1922 duration = 100;
1923 if (wait)
1924 duration = wait;
1925 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
1926 channel_type,
1927 duration, cookie);
1928 if (ret) {
1929 kfree_skb(skb);
1930 mutex_unlock(&local->mtx);
1931 return ret;
1932 }
1933
1934 local->hw_roc_for_tx = true;
1935 local->hw_roc_duration = wait;
1936
1937 /*
1938 * queue up frame for transmission after
1939 * ieee80211_ready_on_channel call
1940 */
1941
1942 /* modify cookie to prevent API mismatches */
1943 *cookie ^= 2;
1944 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1945 local->hw_roc_skb = skb;
4334ec85 1946 local->hw_roc_skb_for_status = skb;
90fc4b3a
JB		 1947 mutex_unlock(&local->mtx);
1948
1949 return 0;
1950 }
1951
f30221e4
JB		 1952 /*
1953 * Can transmit right away if the channel was the
1954 * right one and there's no wait involved... If a
1955 * wait is involved, we might otherwise not be on
1956 * the right channel for long enough!
1957 */
1958 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
1959 ieee80211_tx_skb(sdata, skb);
1960 return 0;
1961 }
1962
1963 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
1964 if (!wk) {
1965 kfree_skb(skb);
1966 return -ENOMEM;
1967 }
1968
1969 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
1970 wk->chan = chan;
4d51e149 1971 wk->chan_type = channel_type;
f30221e4
JB		 1972 wk->sdata = sdata;
1973 wk->done = ieee80211_offchan_tx_done;
1974 wk->offchan_tx.frame = skb;
1975 wk->offchan_tx.wait = wait;
1976 wk->ie_len = len;
1977 memcpy(wk->ie, buf, len);
1978
1979 ieee80211_add_work(wk);
9d38d85d 1980 return 0;
026331c4
JM		 1981}
1982
f30221e4
JB		 1983static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
1984 struct net_device *dev,
1985 u64 cookie)
1986{
1987 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1988 struct ieee80211_local *local = sdata->local;
1989 struct ieee80211_work *wk;
1990 int ret = -ENOENT;
1991
1992 mutex_lock(&local->mtx);
90fc4b3a 1993
5f16a436
JB		 1994 if (local->ops->offchannel_tx_cancel_wait &&
1995 local->hw_offchan_tx_cookie == cookie) {
1996 ret = drv_offchannel_tx_cancel_wait(local);
1997
1998 if (!ret)
1999 local->hw_offchan_tx_cookie = 0;
2000
2001 mutex_unlock(&local->mtx);
2002
2003 return ret;
2004 }
2005
90fc4b3a
JB		 2006 if (local->ops->cancel_remain_on_channel) {
2007 cookie ^= 2;
2008 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2009
2010 if (ret == 0) {
2011 kfree_skb(local->hw_roc_skb);
2012 local->hw_roc_skb = NULL;
4334ec85 2013 local->hw_roc_skb_for_status = NULL;
90fc4b3a
JB		 2014 }
2015
2016 mutex_unlock(&local->mtx);
2017
2018 return ret;
2019 }
2020
f30221e4
JB		 2021 list_for_each_entry(wk, &local->work_list, list) {
2022 if (wk->sdata != sdata)
2023 continue;
2024
2025 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2026 continue;
2027
2028 if (cookie != (unsigned long) wk->offchan_tx.frame)
2029 continue;
2030
2031 wk->timeout = jiffies;
2032
2033 ieee80211_queue_work(&local->hw, &local->work_work);
2034 ret = 0;
2035 break;
2036 }
2037 mutex_unlock(&local->mtx);
2038
2039 return ret;
2040}
2041
7be5086d
JB		 2042static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2043 struct net_device *dev,
2044 u16 frame_type, bool reg)
2045{
2046 struct ieee80211_local *local = wiphy_priv(wiphy);
2047
2048 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2049 return;
2050
2051 if (reg)
2052 local->probe_req_reg++;
2053 else
2054 local->probe_req_reg--;
2055
2056 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2057}
2058
15d96753
BR		 2059static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2060{
2061 struct ieee80211_local *local = wiphy_priv(wiphy);
2062
2063 if (local->started)
2064 return -EOPNOTSUPP;
2065
2066 return drv_set_antenna(local, tx_ant, rx_ant);
2067}
2068
2069static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2070{
2071 struct ieee80211_local *local = wiphy_priv(wiphy);
2072
2073 return drv_get_antenna(local, tx_ant, rx_ant);
2074}
2075
38c09159
JL		 2076static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2077{
2078 struct ieee80211_local *local = wiphy_priv(wiphy);
2079
2080 return drv_set_ringparam(local, tx, rx);
2081}
2082
2083static void ieee80211_get_ringparam(struct wiphy *wiphy,
2084 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2085{
2086 struct ieee80211_local *local = wiphy_priv(wiphy);
2087
2088 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2089}
2090
f0706e82
JB		 2091struct cfg80211_ops mac80211_config_ops = {
2092 .add_virtual_intf = ieee80211_add_iface,
2093 .del_virtual_intf = ieee80211_del_iface,
42613db7 2094 .change_virtual_intf = ieee80211_change_iface,
e8cbb4cb
JB		 2095 .add_key = ieee80211_add_key,
2096 .del_key = ieee80211_del_key,
62da92fb 2097 .get_key = ieee80211_get_key,
e8cbb4cb 2098 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 2099 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5dfdaf58
JB		 2100 .add_beacon = ieee80211_add_beacon,
2101 .set_beacon = ieee80211_set_beacon,
2102 .del_beacon = ieee80211_del_beacon,
4fd6931e
JB		 2103 .add_station = ieee80211_add_station,
2104 .del_station = ieee80211_del_station,
2105 .change_station = ieee80211_change_station,
7bbdd2d9 2106 .get_station = ieee80211_get_station,
c5dd9c2b 2107 .dump_station = ieee80211_dump_station,
1289723e 2108 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 2109#ifdef CONFIG_MAC80211_MESH
2110 .add_mpath = ieee80211_add_mpath,
2111 .del_mpath = ieee80211_del_mpath,
2112 .change_mpath = ieee80211_change_mpath,
2113 .get_mpath = ieee80211_get_mpath,
2114 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 2115 .update_mesh_config = ieee80211_update_mesh_config,
2116 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 2117 .join_mesh = ieee80211_join_mesh,
2118 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 2119#endif
9f1ba906 2120 .change_bss = ieee80211_change_bss,
31888487 2121 .set_txq_params = ieee80211_set_txq_params,
72bdcf34 2122 .set_channel = ieee80211_set_channel,
665af4fc
BC		 2123 .suspend = ieee80211_suspend,
2124 .resume = ieee80211_resume,
2a519311 2125 .scan = ieee80211_scan,
79f460ca
LC		 2126 .sched_scan_start = ieee80211_sched_scan_start,
2127 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 2128 .auth = ieee80211_auth,
2129 .assoc = ieee80211_assoc,
2130 .deauth = ieee80211_deauth,
2131 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 2132 .join_ibss = ieee80211_join_ibss,
2133 .leave_ibss = ieee80211_leave_ibss,
b9a5f8ca 2134 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 2135 .set_tx_power = ieee80211_set_tx_power,
2136 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 2137 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 2138 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 2139 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
bc92afd9 2140 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 2141 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 2142 .remain_on_channel = ieee80211_remain_on_channel,
2143 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 2144 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 2145 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 2146 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 2147 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 2148 .set_antenna = ieee80211_set_antenna,
2149 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 2150 .set_ringparam = ieee80211_set_ringparam,
2151 .get_ringparam = ieee80211_get_ringparam,
f0706e82 2152};
Linux kernel - Deliverables
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