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mac80211: add helper to free TX skb
[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>
dfe018bf 15#include <linux/if_ether.h>
f0706e82
JB		 16#include <net/cfg80211.h>
17#include "ieee80211_i.h"
24487981 18#include "driver-ops.h"
e0eb6859 19#include "cfg.h"
2c8dccc7 20#include "rate.h"
c5dd9c2b 21#include "mesh.h"
c5dd9c2b 22
f9e10ce4
JB		 23static struct net_device *ieee80211_add_iface(struct wiphy *wiphy, char *name,
24 enum nl80211_iftype type,
25 u32 *flags,
26 struct vif_params *params)
f0706e82
JB		 27{
28 struct ieee80211_local *local = wiphy_priv(wiphy);
8cc9a739
MW		 29 struct net_device *dev;
30 struct ieee80211_sub_if_data *sdata;
31 int err;
f0706e82 32
05c914fe 33 err = ieee80211_if_add(local, name, &dev, type, params);
f9e10ce4
JB		 34 if (err)
35 return ERR_PTR(err);
8cc9a739 36
f9e10ce4
JB		 37 if (type == NL80211_IFTYPE_MONITOR && flags) {
38 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
39 sdata->u.mntr_flags = *flags;
40 }
41
42 return dev;
f0706e82
JB		 43}
44
463d0183 45static int ieee80211_del_iface(struct wiphy *wiphy, struct net_device *dev)
f0706e82 46{
463d0183 47 ieee80211_if_remove(IEEE80211_DEV_TO_SUB_IF(dev));
f0706e82 48
75636525 49 return 0;
f0706e82
JB		 50}
51
e36d56b6
JB		 52static int ieee80211_change_iface(struct wiphy *wiphy,
53 struct net_device *dev,
2ec600d6
LCC		 54 enum nl80211_iftype type, u32 *flags,
55 struct vif_params *params)
42613db7 56{
9607e6b6 57 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
f3947e2d 58 int ret;
42613db7 59
05c914fe 60 ret = ieee80211_if_change_type(sdata, type);
f3947e2d
JB		 61 if (ret)
62 return ret;
42613db7 63
9bc383de
JB		 64 if (type == NL80211_IFTYPE_AP_VLAN &&
65 params && params->use_4addr == 0)
a9b3cd7f 66 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
9bc383de
JB		 67 else if (type == NL80211_IFTYPE_STATION &&
68 params && params->use_4addr >= 0)
69 sdata->u.mgd.use_4addr = params->use_4addr;
70
85416a4f
CL		 71 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
72 struct ieee80211_local *local = sdata->local;
73
74 if (ieee80211_sdata_running(sdata)) {
75 /*
76 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
77 * changed while the interface is up.
78 * Else we would need to add a lot of cruft
79 * to update everything:
80 * cooked_mntrs, monitor and all fif_* counters
81 * reconfigure hardware
82 */
83 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
84 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
85 return -EBUSY;
86
87 ieee80211_adjust_monitor_flags(sdata, -1);
88 sdata->u.mntr_flags = *flags;
89 ieee80211_adjust_monitor_flags(sdata, 1);
90
91 ieee80211_configure_filter(local);
92 } else {
93 /*
94 * Because the interface is down, ieee80211_do_stop
95 * and ieee80211_do_open take care of "everything"
96 * mentioned in the comment above.
97 */
98 sdata->u.mntr_flags = *flags;
99 }
100 }
f7917af9 101
42613db7
JB		 102 return 0;
103}
104
e8cbb4cb 105static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 106 u8 key_idx, bool pairwise, const u8 *mac_addr,
e8cbb4cb
JB		 107 struct key_params *params)
108{
26a58456 109 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
e8cbb4cb 110 struct sta_info *sta = NULL;
db4d1169 111 struct ieee80211_key *key;
3b96766f 112 int err;
e8cbb4cb 113
26a58456 114 if (!ieee80211_sdata_running(sdata))
ad0e2b5a
JB		 115 return -ENETDOWN;
116
97359d12 117 /* reject WEP and TKIP keys if WEP failed to initialize */
e8cbb4cb
JB		 118 switch (params->cipher) {
119 case WLAN_CIPHER_SUITE_WEP40:
e8cbb4cb 120 case WLAN_CIPHER_SUITE_TKIP:
97359d12
JB		 121 case WLAN_CIPHER_SUITE_WEP104:
122 if (IS_ERR(sdata->local->wep_tx_tfm))
123 return -EINVAL;
3cfcf6ac 124 break;
e8cbb4cb 125 default:
97359d12 126 break;
e8cbb4cb
JB		 127 }
128
97359d12
JB		 129 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
130 params->key, params->seq_len, params->seq);
1ac62ba7
BH		 131 if (IS_ERR(key))
132 return PTR_ERR(key);
db4d1169 133
e31b8213
JB		 134 if (pairwise)
135 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
136
ad0e2b5a 137 mutex_lock(&sdata->local->sta_mtx);
3b96766f 138
e8cbb4cb 139 if (mac_addr) {
ff973af7
TP		 140 if (ieee80211_vif_is_mesh(&sdata->vif))
141 sta = sta_info_get(sdata, mac_addr);
142 else
143 sta = sta_info_get_bss(sdata, mac_addr);
db4d1169 144 if (!sta) {
32162a4d 145 ieee80211_key_free(sdata->local, key);
3b96766f
JB		 146 err = -ENOENT;
147 goto out_unlock;
db4d1169 148 }
e8cbb4cb
JB		 149 }
150
3ffc2a90
JB		 151 err = ieee80211_key_link(key, sdata, sta);
152 if (err)
153 ieee80211_key_free(sdata->local, key);
db4d1169 154
3b96766f 155 out_unlock:
ad0e2b5a 156 mutex_unlock(&sdata->local->sta_mtx);
3b96766f
JB		 157
158 return err;
e8cbb4cb
JB		 159}
160
161static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213 162 u8 key_idx, bool pairwise, const u8 *mac_addr)
e8cbb4cb 163{
5c0c3641
JB		 164 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
165 struct ieee80211_local *local = sdata->local;
e8cbb4cb 166 struct sta_info *sta;
5c0c3641 167 struct ieee80211_key *key = NULL;
e8cbb4cb
JB		 168 int ret;
169
5c0c3641
JB		 170 mutex_lock(&local->sta_mtx);
171 mutex_lock(&local->key_mtx);
3b96766f 172
e8cbb4cb 173 if (mac_addr) {
3b96766f
JB		 174 ret = -ENOENT;
175
0e5ded5a 176 sta = sta_info_get_bss(sdata, mac_addr);
e8cbb4cb 177 if (!sta)
3b96766f 178 goto out_unlock;
e8cbb4cb 179
5c0c3641 180 if (pairwise)
40b275b6 181 key = key_mtx_dereference(local, sta->ptk);
5c0c3641 182 else
40b275b6 183 key = key_mtx_dereference(local, sta->gtk[key_idx]);
5c0c3641 184 } else
40b275b6 185 key = key_mtx_dereference(local, sdata->keys[key_idx]);
e8cbb4cb 186
5c0c3641 187 if (!key) {
3b96766f
JB		 188 ret = -ENOENT;
189 goto out_unlock;
190 }
e8cbb4cb 191
5c0c3641 192 __ieee80211_key_free(key);
e8cbb4cb 193
3b96766f
JB		 194 ret = 0;
195 out_unlock:
5c0c3641
JB		 196 mutex_unlock(&local->key_mtx);
197 mutex_unlock(&local->sta_mtx);
3b96766f
JB		 198
199 return ret;
e8cbb4cb
JB		 200}
201
62da92fb 202static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
e31b8213
JB		 203 u8 key_idx, bool pairwise, const u8 *mac_addr,
204 void *cookie,
62da92fb
JB		 205 void (*callback)(void *cookie,
206 struct key_params *params))
207{
14db74bc 208 struct ieee80211_sub_if_data *sdata;
62da92fb
JB		 209 struct sta_info *sta = NULL;
210 u8 seq[6] = {0};
211 struct key_params params;
e31b8213 212 struct ieee80211_key *key = NULL;
aba83a0b 213 u64 pn64;
62da92fb
JB		 214 u32 iv32;
215 u16 iv16;
216 int err = -ENOENT;
217
14db74bc
JB		 218 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
219
3b96766f
JB		 220 rcu_read_lock();
221
62da92fb 222 if (mac_addr) {
0e5ded5a 223 sta = sta_info_get_bss(sdata, mac_addr);
62da92fb
JB		 224 if (!sta)
225 goto out;
226
e31b8213 227 if (pairwise)
a3836e02 228 key = rcu_dereference(sta->ptk);
e31b8213 229 else if (key_idx < NUM_DEFAULT_KEYS)
a3836e02 230 key = rcu_dereference(sta->gtk[key_idx]);
62da92fb 231 } else
a3836e02 232 key = rcu_dereference(sdata->keys[key_idx]);
62da92fb
JB		 233
234 if (!key)
235 goto out;
236
237 memset(&params, 0, sizeof(params));
238
97359d12 239 params.cipher = key->conf.cipher;
62da92fb 240
97359d12
JB		 241 switch (key->conf.cipher) {
242 case WLAN_CIPHER_SUITE_TKIP:
b0f76b33
HH		 243 iv32 = key->u.tkip.tx.iv32;
244 iv16 = key->u.tkip.tx.iv16;
62da92fb 245
24487981
JB		 246 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
247 drv_get_tkip_seq(sdata->local,
248 key->conf.hw_key_idx,
249 &iv32, &iv16);
62da92fb
JB		 250
251 seq[0] = iv16 & 0xff;
252 seq[1] = (iv16 >> 8) & 0xff;
253 seq[2] = iv32 & 0xff;
254 seq[3] = (iv32 >> 8) & 0xff;
255 seq[4] = (iv32 >> 16) & 0xff;
256 seq[5] = (iv32 >> 24) & 0xff;
257 params.seq = seq;
258 params.seq_len = 6;
259 break;
97359d12 260 case WLAN_CIPHER_SUITE_CCMP:
aba83a0b
JB		 261 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
262 seq[0] = pn64;
263 seq[1] = pn64 >> 8;
264 seq[2] = pn64 >> 16;
265 seq[3] = pn64 >> 24;
266 seq[4] = pn64 >> 32;
267 seq[5] = pn64 >> 40;
62da92fb
JB		 268 params.seq = seq;
269 params.seq_len = 6;
270 break;
97359d12 271 case WLAN_CIPHER_SUITE_AES_CMAC:
75396ae6
JB		 272 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
273 seq[0] = pn64;
274 seq[1] = pn64 >> 8;
275 seq[2] = pn64 >> 16;
276 seq[3] = pn64 >> 24;
277 seq[4] = pn64 >> 32;
278 seq[5] = pn64 >> 40;
3cfcf6ac
JM		 279 params.seq = seq;
280 params.seq_len = 6;
281 break;
62da92fb
JB		 282 }
283
284 params.key = key->conf.key;
285 params.key_len = key->conf.keylen;
286
287 callback(cookie, &params);
288 err = 0;
289
290 out:
3b96766f 291 rcu_read_unlock();
62da92fb
JB		 292 return err;
293}
294
e8cbb4cb
JB		 295static int ieee80211_config_default_key(struct wiphy *wiphy,
296 struct net_device *dev,
dbd2fd65
JB		 297 u8 key_idx, bool uni,
298 bool multi)
e8cbb4cb 299{
ad0e2b5a 300 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3b96766f 301
f7e0104c 302 ieee80211_set_default_key(sdata, key_idx, uni, multi);
e8cbb4cb
JB		 303
304 return 0;
305}
306
3cfcf6ac
JM		 307static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
308 struct net_device *dev,
309 u8 key_idx)
310{
66c52421 311 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3cfcf6ac 312
3cfcf6ac
JM		 313 ieee80211_set_default_mgmt_key(sdata, key_idx);
314
3cfcf6ac
JM		 315 return 0;
316}
317
3af6334c
FF		 318static void rate_idx_to_bitrate(struct rate_info *rate, struct sta_info *sta, int idx)
319{
320 if (!(rate->flags & RATE_INFO_FLAGS_MCS)) {
321 struct ieee80211_supported_band *sband;
322 sband = sta->local->hw.wiphy->bands[
323 sta->local->hw.conf.channel->band];
324 rate->legacy = sband->bitrates[idx].bitrate;
325 } else
326 rate->mcs = idx;
327}
328
c5dd9c2b
LCC		 329static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
330{
d0709a65 331 struct ieee80211_sub_if_data *sdata = sta->sdata;
ebe27c91 332 struct timespec uptime;
c5dd9c2b 333
f5ea9120
JB		 334 sinfo->generation = sdata->local->sta_generation;
335
c5dd9c2b
LCC		 336 sinfo->filled = STATION_INFO_INACTIVE_TIME |
337 STATION_INFO_RX_BYTES |
420e7fab 338 STATION_INFO_TX_BYTES |
98c8a60a
JM		 339 STATION_INFO_RX_PACKETS |
340 STATION_INFO_TX_PACKETS |
b206b4ef
BR		 341 STATION_INFO_TX_RETRIES |
342 STATION_INFO_TX_FAILED |
5a5c731a 343 STATION_INFO_TX_BITRATE |
3af6334c 344 STATION_INFO_RX_BITRATE |
f4263c98 345 STATION_INFO_RX_DROP_MISC |
ebe27c91 346 STATION_INFO_BSS_PARAM |
7a724767
HS		 347 STATION_INFO_CONNECTED_TIME |
348 STATION_INFO_STA_FLAGS;
ebe27c91
MSS		 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;
7a724767
HS		 408
409 sinfo->sta_flags.set = 0;
410 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
411 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
412 BIT(NL80211_STA_FLAG_WME) |
413 BIT(NL80211_STA_FLAG_MFP) |
414 BIT(NL80211_STA_FLAG_AUTHENTICATED);
415 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
416 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
417 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
418 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
419 if (test_sta_flag(sta, WLAN_STA_WME))
420 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
421 if (test_sta_flag(sta, WLAN_STA_MFP))
422 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
423 if (test_sta_flag(sta, WLAN_STA_AUTH))
424 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
c5dd9c2b
LCC		 425}
426
427
428static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
429 int idx, u8 *mac, struct station_info *sinfo)
430{
3b53fde8 431 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
c5dd9c2b 432 struct sta_info *sta;
d0709a65
JB		 433 int ret = -ENOENT;
434
435 rcu_read_lock();
c5dd9c2b 436
3b53fde8 437 sta = sta_info_get_by_idx(sdata, idx);
d0709a65
JB		 438 if (sta) {
439 ret = 0;
17741cdc 440 memcpy(mac, sta->sta.addr, ETH_ALEN);
d0709a65
JB		 441 sta_set_sinfo(sta, sinfo);
442 }
c5dd9c2b 443
d0709a65 444 rcu_read_unlock();
c5dd9c2b 445
d0709a65 446 return ret;
c5dd9c2b
LCC		 447}
448
1289723e
HS		 449static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
450 int idx, struct survey_info *survey)
451{
452 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
453
1289723e
HS		 454 return drv_get_survey(local, idx, survey);
455}
456
7bbdd2d9 457static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
2ec600d6 458 u8 *mac, struct station_info *sinfo)
7bbdd2d9 459{
abe60632 460 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
7bbdd2d9 461 struct sta_info *sta;
d0709a65 462 int ret = -ENOENT;
7bbdd2d9 463
d0709a65 464 rcu_read_lock();
7bbdd2d9 465
0e5ded5a 466 sta = sta_info_get_bss(sdata, mac);
d0709a65
JB		 467 if (sta) {
468 ret = 0;
469 sta_set_sinfo(sta, sinfo);
470 }
471
472 rcu_read_unlock();
473
474 return ret;
7bbdd2d9
JB		 475}
476
7827493b
AN		 477static void ieee80211_config_ap_ssid(struct ieee80211_sub_if_data *sdata,
478 struct beacon_parameters *params)
479{
480 struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
481
482 bss_conf->ssid_len = params->ssid_len;
483
484 if (params->ssid_len)
485 memcpy(bss_conf->ssid, params->ssid, params->ssid_len);
486
487 bss_conf->hidden_ssid =
488 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
489}
490
5dfdaf58
JB		 491/*
492 * This handles both adding a beacon and setting new beacon info
493 */
494static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata,
495 struct beacon_parameters *params)
496{
497 struct beacon_data *new, *old;
498 int new_head_len, new_tail_len;
499 int size;
500 int err = -EINVAL;
501
40b275b6 502 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 503
504 /* head must not be zero-length */
505 if (params->head && !params->head_len)
506 return -EINVAL;
507
508 /*
509 * This is a kludge. beacon interval should really be part
510 * of the beacon information.
511 */
57c4d7b4
JB		 512 if (params->interval &&
513 (sdata->vif.bss_conf.beacon_int != params->interval)) {
514 sdata->vif.bss_conf.beacon_int = params->interval;
515 ieee80211_bss_info_change_notify(sdata,
516 BSS_CHANGED_BEACON_INT);
5dfdaf58
JB		 517 }
518
519 /* Need to have a beacon head if we don't have one yet */
520 if (!params->head && !old)
521 return err;
522
523 /* sorry, no way to start beaconing without dtim period */
524 if (!params->dtim_period && !old)
525 return err;
526
527 /* new or old head? */
528 if (params->head)
529 new_head_len = params->head_len;
530 else
531 new_head_len = old->head_len;
532
533 /* new or old tail? */
534 if (params->tail || !old)
535 /* params->tail_len will be zero for !params->tail */
536 new_tail_len = params->tail_len;
537 else
538 new_tail_len = old->tail_len;
539
540 size = sizeof(*new) + new_head_len + new_tail_len;
541
542 new = kzalloc(size, GFP_KERNEL);
543 if (!new)
544 return -ENOMEM;
545
546 /* start filling the new info now */
547
548 /* new or old dtim period? */
549 if (params->dtim_period)
550 new->dtim_period = params->dtim_period;
551 else
552 new->dtim_period = old->dtim_period;
553
554 /*
555 * pointers go into the block we allocated,
556 * memory is | beacon_data | head | tail |
557 */
558 new->head = ((u8 *) new) + sizeof(*new);
559 new->tail = new->head + new_head_len;
560 new->head_len = new_head_len;
561 new->tail_len = new_tail_len;
562
563 /* copy in head */
564 if (params->head)
565 memcpy(new->head, params->head, new_head_len);
566 else
567 memcpy(new->head, old->head, new_head_len);
568
569 /* copy in optional tail */
570 if (params->tail)
571 memcpy(new->tail, params->tail, new_tail_len);
572 else
573 if (old)
574 memcpy(new->tail, old->tail, new_tail_len);
575
19885c4f
JB		 576 sdata->vif.bss_conf.dtim_period = new->dtim_period;
577
a9b3cd7f 578 RCU_INIT_POINTER(sdata->u.ap.beacon, new);
5dfdaf58
JB		 579
580 synchronize_rcu();
581
582 kfree(old);
583
7827493b
AN		 584 ieee80211_config_ap_ssid(sdata, params);
585
2d0ddec5 586 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED |
7827493b
AN		 587 BSS_CHANGED_BEACON |
588 BSS_CHANGED_SSID);
2d0ddec5 589 return 0;
5dfdaf58
JB		 590}
591
592static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev,
593 struct beacon_parameters *params)
594{
14db74bc 595 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 596 struct beacon_data *old;
597
14db74bc
JB		 598 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
599
40b275b6 600 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 601 if (old)
602 return -EALREADY;
603
604 return ieee80211_config_beacon(sdata, params);
605}
606
607static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev,
608 struct beacon_parameters *params)
609{
14db74bc 610 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 611 struct beacon_data *old;
612
14db74bc
JB		 613 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
614
40b275b6 615 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 616 if (!old)
617 return -ENOENT;
618
619 return ieee80211_config_beacon(sdata, params);
620}
621
622static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev)
623{
14db74bc 624 struct ieee80211_sub_if_data *sdata;
5dfdaf58
JB		 625 struct beacon_data *old;
626
14db74bc
JB		 627 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
628
40b275b6 629 old = rtnl_dereference(sdata->u.ap.beacon);
5dfdaf58
JB		 630 if (!old)
631 return -ENOENT;
632
a9b3cd7f 633 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
5dfdaf58
JB		 634 synchronize_rcu();
635 kfree(old);
636
2d0ddec5
JB		 637 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
638 return 0;
5dfdaf58
JB		 639}
640
4fd6931e
JB		 641/* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
642struct iapp_layer2_update {
643 u8 da[ETH_ALEN]; /* broadcast */
644 u8 sa[ETH_ALEN]; /* STA addr */
645 __be16 len; /* 6 */
646 u8 dsap; /* 0 */
647 u8 ssap; /* 0 */
648 u8 control;
649 u8 xid_info[3];
bc10502d 650} __packed;
4fd6931e
JB		 651
652static void ieee80211_send_layer2_update(struct sta_info *sta)
653{
654 struct iapp_layer2_update *msg;
655 struct sk_buff *skb;
656
657 /* Send Level 2 Update Frame to update forwarding tables in layer 2
658 * bridge devices */
659
660 skb = dev_alloc_skb(sizeof(*msg));
661 if (!skb)
662 return;
663 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
664
665 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
666 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
667
668 memset(msg->da, 0xff, ETH_ALEN);
17741cdc 669 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
4fd6931e
JB		 670 msg->len = htons(6);
671 msg->dsap = 0;
672 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
673 msg->control = 0xaf; /* XID response lsb.1111F101.
674 * F=0 (no poll command; unsolicited frame) */
675 msg->xid_info[0] = 0x81; /* XID format identifier */
676 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
677 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
678
d0709a65
JB		 679 skb->dev = sta->sdata->dev;
680 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
4fd6931e 681 memset(skb->cb, 0, sizeof(skb->cb));
06ee1c26 682 netif_rx_ni(skb);
4fd6931e
JB		 683}
684
685static void sta_apply_parameters(struct ieee80211_local *local,
686 struct sta_info *sta,
687 struct station_parameters *params)
688{
689 u32 rates;
690 int i, j;
8318d78a 691 struct ieee80211_supported_band *sband;
d0709a65 692 struct ieee80211_sub_if_data *sdata = sta->sdata;
eccb8e8f 693 u32 mask, set;
4fd6931e 694
ae5eb026
JB		 695 sband = local->hw.wiphy->bands[local->oper_channel->band];
696
eccb8e8f
JB		 697 mask = params->sta_flags_mask;
698 set = params->sta_flags_set;
73651ee6 699
eccb8e8f 700 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
eccb8e8f 701 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
c2c98fde
JB		 702 set_sta_flag(sta, WLAN_STA_AUTHORIZED);
703 else
704 clear_sta_flag(sta, WLAN_STA_AUTHORIZED);
eccb8e8f 705 }
4fd6931e 706
eccb8e8f 707 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
eccb8e8f 708 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
c2c98fde
JB		 709 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
710 else
711 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
eccb8e8f 712 }
4fd6931e 713
eccb8e8f 714 if (mask & BIT(NL80211_STA_FLAG_WME)) {
39df600a 715 if (set & BIT(NL80211_STA_FLAG_WME)) {
c2c98fde 716 set_sta_flag(sta, WLAN_STA_WME);
39df600a 717 sta->sta.wme = true;
c2c98fde
JB		 718 } else {
719 clear_sta_flag(sta, WLAN_STA_WME);
720 sta->sta.wme = false;
39df600a 721 }
eccb8e8f 722 }
5394af4d 723
eccb8e8f 724 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
eccb8e8f 725 if (set & BIT(NL80211_STA_FLAG_MFP))
c2c98fde
JB		 726 set_sta_flag(sta, WLAN_STA_MFP);
727 else
728 clear_sta_flag(sta, WLAN_STA_MFP);
4fd6931e 729 }
b39c48fa
JC		 730
731 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
b39c48fa 732 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
c2c98fde
JB		 733 set_sta_flag(sta, WLAN_STA_AUTH);
734 else
735 clear_sta_flag(sta, WLAN_STA_AUTH);
b39c48fa 736 }
4fd6931e 737
07ba55d7 738 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
07ba55d7 739 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
c2c98fde
JB		 740 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
741 else
742 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
07ba55d7 743 }
4fd6931e 744
3b9ce80c
JB		 745 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
746 sta->sta.uapsd_queues = params->uapsd_queues;
747 sta->sta.max_sp = params->max_sp;
748 }
9533b4ac 749
51b50fbe
JB		 750 /*
751 * cfg80211 validates this (1-2007) and allows setting the AID
752 * only when creating a new station entry
753 */
754 if (params->aid)
755 sta->sta.aid = params->aid;
756
73651ee6
JB		 757 /*
758 * FIXME: updating the following information is racy when this
759 * function is called from ieee80211_change_station().
760 * However, all this information should be static so
761 * maybe we should just reject attemps to change it.
762 */
763
4fd6931e
JB		 764 if (params->listen_interval >= 0)
765 sta->listen_interval = params->listen_interval;
766
767 if (params->supported_rates) {
768 rates = 0;
8318d78a 769
4fd6931e
JB		 770 for (i = 0; i < params->supported_rates_len; i++) {
771 int rate = (params->supported_rates[i] & 0x7f) * 5;
8318d78a
JB		 772 for (j = 0; j < sband->n_bitrates; j++) {
773 if (sband->bitrates[j].bitrate == rate)
4fd6931e
JB		 774 rates |= BIT(j);
775 }
776 }
323ce79a 777 sta->sta.supp_rates[local->oper_channel->band] = rates;
4fd6931e 778 }
c5dd9c2b 779
d9fe60de 780 if (params->ht_capa)
ae5eb026
JB		 781 ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
782 params->ht_capa,
d9fe60de 783 &sta->sta.ht_cap);
36aedc90 784
9c3990aa 785 if (ieee80211_vif_is_mesh(&sdata->vif)) {
4daf50f2 786#ifdef CONFIG_MAC80211_MESH
9c3990aa
JC		 787 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
788 switch (params->plink_state) {
57cf8043
JC		 789 case NL80211_PLINK_LISTEN:
790 case NL80211_PLINK_ESTAB:
791 case NL80211_PLINK_BLOCKED:
9c3990aa
JC		 792 sta->plink_state = params->plink_state;
793 break;
794 default:
795 /* nothing */
796 break;
797 }
798 else
799 switch (params->plink_action) {
800 case PLINK_ACTION_OPEN:
801 mesh_plink_open(sta);
802 break;
803 case PLINK_ACTION_BLOCK:
804 mesh_plink_block(sta);
805 break;
806 }
4daf50f2 807#endif
902acc78 808 }
4fd6931e
JB		 809}
810
811static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
812 u8 *mac, struct station_parameters *params)
813{
14db74bc 814 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 815 struct sta_info *sta;
816 struct ieee80211_sub_if_data *sdata;
73651ee6 817 int err;
b8d476c8 818 int layer2_update;
4fd6931e 819
4fd6931e
JB		 820 if (params->vlan) {
821 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
822
05c914fe
JB		 823 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
824 sdata->vif.type != NL80211_IFTYPE_AP)
4fd6931e
JB		 825 return -EINVAL;
826 } else
827 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
828
47846c9b 829 if (compare_ether_addr(mac, sdata->vif.addr) == 0)
03e4497e
JB		 830 return -EINVAL;
831
832 if (is_multicast_ether_addr(mac))
833 return -EINVAL;
834
e3a4cc2f
JM		 835 /* Only TDLS-supporting stations can add TDLS peers */
836 if ((params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
837 !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
838 sdata->vif.type == NL80211_IFTYPE_STATION))
839 return -ENOTSUPP;
840
03e4497e 841 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
73651ee6
JB		 842 if (!sta)
843 return -ENOMEM;
4fd6931e 844
c2c98fde
JB		 845 set_sta_flag(sta, WLAN_STA_AUTH);
846 set_sta_flag(sta, WLAN_STA_ASSOC);
4fd6931e
JB		 847
848 sta_apply_parameters(local, sta, params);
849
4b7679a5 850 rate_control_rate_init(sta);
4fd6931e 851
b8d476c8
JM		 852 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
853 sdata->vif.type == NL80211_IFTYPE_AP;
854
34e89507 855 err = sta_info_insert_rcu(sta);
73651ee6 856 if (err) {
73651ee6
JB		 857 rcu_read_unlock();
858 return err;
859 }
860
b8d476c8 861 if (layer2_update)
73651ee6
JB		 862 ieee80211_send_layer2_update(sta);
863
864 rcu_read_unlock();
865
4fd6931e
JB		 866 return 0;
867}
868
869static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
870 u8 *mac)
871{
14db74bc
JB		 872 struct ieee80211_local *local = wiphy_priv(wiphy);
873 struct ieee80211_sub_if_data *sdata;
4fd6931e 874
14db74bc
JB		 875 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
876
34e89507
JB		 877 if (mac)
878 return sta_info_destroy_addr_bss(sdata, mac);
4fd6931e 879
34e89507 880 sta_info_flush(local, sdata);
4fd6931e
JB		 881 return 0;
882}
883
884static int ieee80211_change_station(struct wiphy *wiphy,
885 struct net_device *dev,
886 u8 *mac,
887 struct station_parameters *params)
888{
abe60632 889 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
14db74bc 890 struct ieee80211_local *local = wiphy_priv(wiphy);
4fd6931e
JB		 891 struct sta_info *sta;
892 struct ieee80211_sub_if_data *vlansdata;
893
98dd6a57
JB		 894 rcu_read_lock();
895
0e5ded5a 896 sta = sta_info_get_bss(sdata, mac);
98dd6a57
JB		 897 if (!sta) {
898 rcu_read_unlock();
4fd6931e 899 return -ENOENT;
98dd6a57 900 }
4fd6931e 901
07ba55d7
AN		 902 /* The TDLS bit cannot be toggled after the STA was added */
903 if ((params->sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
904 !!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) !=
c2c98fde 905 !!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
07ba55d7
AN		 906 rcu_read_unlock();
907 return -EINVAL;
908 }
909
d0709a65 910 if (params->vlan && params->vlan != sta->sdata->dev) {
4fd6931e
JB		 911 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
912
05c914fe
JB		 913 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
914 vlansdata->vif.type != NL80211_IFTYPE_AP) {
98dd6a57 915 rcu_read_unlock();
4fd6931e 916 return -EINVAL;
98dd6a57 917 }
4fd6931e 918
9bc383de 919 if (params->vlan->ieee80211_ptr->use_4addr) {
3305443c
JB		 920 if (vlansdata->u.vlan.sta) {
921 rcu_read_unlock();
f14543ee 922 return -EBUSY;
3305443c 923 }
f14543ee 924
a9b3cd7f 925 RCU_INIT_POINTER(vlansdata->u.vlan.sta, sta);
f14543ee
FF		 926 }
927
14db74bc 928 sta->sdata = vlansdata;
4fd6931e
JB		 929 ieee80211_send_layer2_update(sta);
930 }
931
932 sta_apply_parameters(local, sta, params);
933
98dd6a57
JB		 934 rcu_read_unlock();
935
808118cb
JY		 936 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
937 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED))
938 ieee80211_recalc_ps(local, -1);
939
4fd6931e
JB		 940 return 0;
941}
942
c5dd9c2b
LCC		 943#ifdef CONFIG_MAC80211_MESH
944static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
945 u8 *dst, u8 *next_hop)
946{
14db74bc 947 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 948 struct mesh_path *mpath;
949 struct sta_info *sta;
950 int err;
951
14db74bc
JB		 952 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
953
d0709a65 954 rcu_read_lock();
abe60632 955 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 956 if (!sta) {
957 rcu_read_unlock();
c5dd9c2b 958 return -ENOENT;
d0709a65 959 }
c5dd9c2b 960
f698d856 961 err = mesh_path_add(dst, sdata);
d0709a65
JB		 962 if (err) {
963 rcu_read_unlock();
c5dd9c2b 964 return err;
d0709a65 965 }
c5dd9c2b 966
f698d856 967 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 968 if (!mpath) {
969 rcu_read_unlock();
c5dd9c2b
LCC		 970 return -ENXIO;
971 }
972 mesh_path_fix_nexthop(mpath, sta);
d0709a65 973
c5dd9c2b
LCC		 974 rcu_read_unlock();
975 return 0;
976}
977
978static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
979 u8 *dst)
980{
f698d856
JBG		 981 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
982
c5dd9c2b 983 if (dst)
f698d856 984 return mesh_path_del(dst, sdata);
c5dd9c2b 985
ece1a2e7 986 mesh_path_flush_by_iface(sdata);
c5dd9c2b
LCC		 987 return 0;
988}
989
990static int ieee80211_change_mpath(struct wiphy *wiphy,
991 struct net_device *dev,
992 u8 *dst, u8 *next_hop)
993{
14db74bc 994 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 995 struct mesh_path *mpath;
996 struct sta_info *sta;
997
14db74bc
JB		 998 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
999
d0709a65
JB		 1000 rcu_read_lock();
1001
abe60632 1002 sta = sta_info_get(sdata, next_hop);
d0709a65
JB		 1003 if (!sta) {
1004 rcu_read_unlock();
c5dd9c2b 1005 return -ENOENT;
d0709a65 1006 }
c5dd9c2b 1007
f698d856 1008 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 1009 if (!mpath) {
1010 rcu_read_unlock();
c5dd9c2b
LCC		 1011 return -ENOENT;
1012 }
1013
1014 mesh_path_fix_nexthop(mpath, sta);
d0709a65 1015
c5dd9c2b
LCC		 1016 rcu_read_unlock();
1017 return 0;
1018}
1019
1020static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1021 struct mpath_info *pinfo)
1022{
a3836e02
JB		 1023 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1024
1025 if (next_hop_sta)
1026 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
c5dd9c2b
LCC		 1027 else
1028 memset(next_hop, 0, ETH_ALEN);
1029
f5ea9120
JB		 1030 pinfo->generation = mesh_paths_generation;
1031
c5dd9c2b 1032 pinfo->filled = MPATH_INFO_FRAME_QLEN |
d19b3bf6 1033 MPATH_INFO_SN |
c5dd9c2b
LCC		 1034 MPATH_INFO_METRIC |
1035 MPATH_INFO_EXPTIME |
1036 MPATH_INFO_DISCOVERY_TIMEOUT |
1037 MPATH_INFO_DISCOVERY_RETRIES |
1038 MPATH_INFO_FLAGS;
1039
1040 pinfo->frame_qlen = mpath->frame_queue.qlen;
d19b3bf6 1041 pinfo->sn = mpath->sn;
c5dd9c2b
LCC		 1042 pinfo->metric = mpath->metric;
1043 if (time_before(jiffies, mpath->exp_time))
1044 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1045 pinfo->discovery_timeout =
1046 jiffies_to_msecs(mpath->discovery_timeout);
1047 pinfo->discovery_retries = mpath->discovery_retries;
1048 pinfo->flags = 0;
1049 if (mpath->flags & MESH_PATH_ACTIVE)
1050 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1051 if (mpath->flags & MESH_PATH_RESOLVING)
1052 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
d19b3bf6
RP		 1053 if (mpath->flags & MESH_PATH_SN_VALID)
1054 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
c5dd9c2b
LCC		 1055 if (mpath->flags & MESH_PATH_FIXED)
1056 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1057 if (mpath->flags & MESH_PATH_RESOLVING)
1058 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1059
1060 pinfo->flags = mpath->flags;
1061}
1062
1063static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1064 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1065
1066{
14db74bc 1067 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1068 struct mesh_path *mpath;
1069
14db74bc
JB		 1070 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1071
c5dd9c2b 1072 rcu_read_lock();
f698d856 1073 mpath = mesh_path_lookup(dst, sdata);
c5dd9c2b
LCC		 1074 if (!mpath) {
1075 rcu_read_unlock();
1076 return -ENOENT;
1077 }
1078 memcpy(dst, mpath->dst, ETH_ALEN);
1079 mpath_set_pinfo(mpath, next_hop, pinfo);
1080 rcu_read_unlock();
1081 return 0;
1082}
1083
1084static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1085 int idx, u8 *dst, u8 *next_hop,
1086 struct mpath_info *pinfo)
1087{
14db74bc 1088 struct ieee80211_sub_if_data *sdata;
c5dd9c2b
LCC		 1089 struct mesh_path *mpath;
1090
14db74bc
JB		 1091 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1092
c5dd9c2b 1093 rcu_read_lock();
f698d856 1094 mpath = mesh_path_lookup_by_idx(idx, sdata);
c5dd9c2b
LCC		 1095 if (!mpath) {
1096 rcu_read_unlock();
1097 return -ENOENT;
1098 }
1099 memcpy(dst, mpath->dst, ETH_ALEN);
1100 mpath_set_pinfo(mpath, next_hop, pinfo);
1101 rcu_read_unlock();
1102 return 0;
1103}
93da9cc1 1104
24bdd9f4 1105static int ieee80211_get_mesh_config(struct wiphy *wiphy,
93da9cc1 1106 struct net_device *dev,
1107 struct mesh_config *conf)
1108{
1109 struct ieee80211_sub_if_data *sdata;
1110 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1111
93da9cc1 1112 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1113 return 0;
1114}
1115
1116static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1117{
1118 return (mask >> (parm-1)) & 0x1;
1119}
1120
c80d545d
JC		 1121static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1122 const struct mesh_setup *setup)
1123{
1124 u8 *new_ie;
1125 const u8 *old_ie;
1126
581a8b0f 1127 /* allocate information elements */
c80d545d 1128 new_ie = NULL;
581a8b0f 1129 old_ie = ifmsh->ie;
c80d545d 1130
581a8b0f
JC		 1131 if (setup->ie_len) {
1132 new_ie = kmemdup(setup->ie, setup->ie_len,
c80d545d
JC		 1133 GFP_KERNEL);
1134 if (!new_ie)
1135 return -ENOMEM;
1136 }
581a8b0f
JC		 1137 ifmsh->ie_len = setup->ie_len;
1138 ifmsh->ie = new_ie;
1139 kfree(old_ie);
c80d545d
JC		 1140
1141 /* now copy the rest of the setup parameters */
1142 ifmsh->mesh_id_len = setup->mesh_id_len;
1143 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1144 ifmsh->mesh_pp_id = setup->path_sel_proto;
1145 ifmsh->mesh_pm_id = setup->path_metric;
b130e5ce
JC		 1146 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1147 if (setup->is_authenticated)
1148 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1149 if (setup->is_secure)
1150 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
c80d545d
JC		 1151
1152 return 0;
1153}
1154
24bdd9f4 1155static int ieee80211_update_mesh_config(struct wiphy *wiphy,
29cbe68c
JB		 1156 struct net_device *dev, u32 mask,
1157 const struct mesh_config *nconf)
93da9cc1 1158{
1159 struct mesh_config *conf;
1160 struct ieee80211_sub_if_data *sdata;
63c5723b
RP		 1161 struct ieee80211_if_mesh *ifmsh;
1162
93da9cc1 1163 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
63c5723b 1164 ifmsh = &sdata->u.mesh;
93da9cc1 1165
93da9cc1 1166 /* Set the config options which we are interested in setting */
1167 conf = &(sdata->u.mesh.mshcfg);
1168 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1169 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1170 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1171 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1172 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1173 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1174 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1175 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1176 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1177 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1178 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1179 conf->dot11MeshTTL = nconf->dot11MeshTTL;
45904f21
JC		 1180 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1181 conf->dot11MeshTTL = nconf->element_ttl;
93da9cc1 1182 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1183 conf->auto_open_plinks = nconf->auto_open_plinks;
1184 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1185 conf->dot11MeshHWMPmaxPREQretries =
1186 nconf->dot11MeshHWMPmaxPREQretries;
1187 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1188 conf->path_refresh_time = nconf->path_refresh_time;
1189 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1190 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1191 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1192 conf->dot11MeshHWMPactivePathTimeout =
1193 nconf->dot11MeshHWMPactivePathTimeout;
1194 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1195 conf->dot11MeshHWMPpreqMinInterval =
1196 nconf->dot11MeshHWMPpreqMinInterval;
1197 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1198 mask))
1199 conf->dot11MeshHWMPnetDiameterTraversalTime =
1200 nconf->dot11MeshHWMPnetDiameterTraversalTime;
63c5723b
RP		 1201 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1202 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1203 ieee80211_mesh_root_setup(ifmsh);
1204 }
16dd7267 1205 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
c6133661
TP		 1206 /* our current gate announcement implementation rides on root
1207 * announcements, so require this ifmsh to also be a root node
1208 * */
1209 if (nconf->dot11MeshGateAnnouncementProtocol &&
1210 !conf->dot11MeshHWMPRootMode) {
1211 conf->dot11MeshHWMPRootMode = 1;
1212 ieee80211_mesh_root_setup(ifmsh);
1213 }
16dd7267
JC		 1214 conf->dot11MeshGateAnnouncementProtocol =
1215 nconf->dot11MeshGateAnnouncementProtocol;
1216 }
0507e159
JC		 1217 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) {
1218 conf->dot11MeshHWMPRannInterval =
1219 nconf->dot11MeshHWMPRannInterval;
1220 }
93da9cc1 1221 return 0;
1222}
1223
29cbe68c
JB		 1224static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1225 const struct mesh_config *conf,
1226 const struct mesh_setup *setup)
1227{
1228 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1229 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
c80d545d 1230 int err;
29cbe68c 1231
c80d545d
JC		 1232 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1233 err = copy_mesh_setup(ifmsh, setup);
1234 if (err)
1235 return err;
29cbe68c
JB		 1236 ieee80211_start_mesh(sdata);
1237
1238 return 0;
1239}
1240
1241static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1242{
1243 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1244
1245 ieee80211_stop_mesh(sdata);
1246
1247 return 0;
1248}
c5dd9c2b
LCC		 1249#endif
1250
9f1ba906
JM		 1251static int ieee80211_change_bss(struct wiphy *wiphy,
1252 struct net_device *dev,
1253 struct bss_parameters *params)
1254{
9f1ba906
JM		 1255 struct ieee80211_sub_if_data *sdata;
1256 u32 changed = 0;
1257
9f1ba906
JM		 1258 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1259
9f1ba906 1260 if (params->use_cts_prot >= 0) {
bda3933a 1261 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
9f1ba906
JM		 1262 changed |= BSS_CHANGED_ERP_CTS_PROT;
1263 }
1264 if (params->use_short_preamble >= 0) {
bda3933a 1265 sdata->vif.bss_conf.use_short_preamble =
9f1ba906
JM		 1266 params->use_short_preamble;
1267 changed |= BSS_CHANGED_ERP_PREAMBLE;
1268 }
43d35343
FF		 1269
1270 if (!sdata->vif.bss_conf.use_short_slot &&
1271 sdata->local->hw.conf.channel->band == IEEE80211_BAND_5GHZ) {
1272 sdata->vif.bss_conf.use_short_slot = true;
1273 changed |= BSS_CHANGED_ERP_SLOT;
1274 }
1275
9f1ba906 1276 if (params->use_short_slot_time >= 0) {
bda3933a 1277 sdata->vif.bss_conf.use_short_slot =
9f1ba906
JM		 1278 params->use_short_slot_time;
1279 changed |= BSS_CHANGED_ERP_SLOT;
1280 }
1281
90c97a04
JM		 1282 if (params->basic_rates) {
1283 int i, j;
1284 u32 rates = 0;
1285 struct ieee80211_local *local = wiphy_priv(wiphy);
1286 struct ieee80211_supported_band *sband =
1287 wiphy->bands[local->oper_channel->band];
1288
1289 for (i = 0; i < params->basic_rates_len; i++) {
1290 int rate = (params->basic_rates[i] & 0x7f) * 5;
1291 for (j = 0; j < sband->n_bitrates; j++) {
1292 if (sband->bitrates[j].bitrate == rate)
1293 rates |= BIT(j);
1294 }
1295 }
1296 sdata->vif.bss_conf.basic_rates = rates;
1297 changed |= BSS_CHANGED_BASIC_RATES;
1298 }
1299
7b7b5e56
FF		 1300 if (params->ap_isolate >= 0) {
1301 if (params->ap_isolate)
1302 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1303 else
1304 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1305 }
1306
80d7e403
HS		 1307 if (params->ht_opmode >= 0) {
1308 sdata->vif.bss_conf.ht_operation_mode =
1309 (u16) params->ht_opmode;
1310 changed |= BSS_CHANGED_HT;
1311 }
1312
9f1ba906
JM		 1313 ieee80211_bss_info_change_notify(sdata, changed);
1314
1315 return 0;
1316}
1317
31888487 1318static int ieee80211_set_txq_params(struct wiphy *wiphy,
f70f01c2 1319 struct net_device *dev,
31888487
JM		 1320 struct ieee80211_txq_params *params)
1321{
1322 struct ieee80211_local *local = wiphy_priv(wiphy);
f6f3def3 1323 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
31888487
JM		 1324 struct ieee80211_tx_queue_params p;
1325
1326 if (!local->ops->conf_tx)
1327 return -EOPNOTSUPP;
1328
1329 memset(&p, 0, sizeof(p));
1330 p.aifs = params->aifs;
1331 p.cw_max = params->cwmax;
1332 p.cw_min = params->cwmin;
1333 p.txop = params->txop;
ab13315a
KV		 1334
1335 /*
1336 * Setting tx queue params disables u-apsd because it's only
1337 * called in master mode.
1338 */
1339 p.uapsd = false;
1340
2683d65b
EP		 1341 if (params->queue >= local->hw.queues)
1342 return -EINVAL;
1343
f6f3def3
EP		 1344 sdata->tx_conf[params->queue] = p;
1345 if (drv_conf_tx(local, sdata, params->queue, &p)) {
0fb9a9ec
JP		 1346 wiphy_debug(local->hw.wiphy,
1347 "failed to set TX queue parameters for queue %d\n",
1348 params->queue);
31888487
JM		 1349 return -EINVAL;
1350 }
1351
1352 return 0;
1353}
1354
72bdcf34 1355static int ieee80211_set_channel(struct wiphy *wiphy,
f444de05 1356 struct net_device *netdev,
72bdcf34 1357 struct ieee80211_channel *chan,
094d05dc 1358 enum nl80211_channel_type channel_type)
72bdcf34
JM		 1359{
1360 struct ieee80211_local *local = wiphy_priv(wiphy);
0aaffa9b 1361 struct ieee80211_sub_if_data *sdata = NULL;
eeabee7e
BG		 1362 struct ieee80211_channel *old_oper;
1363 enum nl80211_channel_type old_oper_type;
1364 enum nl80211_channel_type old_vif_oper_type= NL80211_CHAN_NO_HT;
0aaffa9b
JB		 1365
1366 if (netdev)
1367 sdata = IEEE80211_DEV_TO_SUB_IF(netdev);
72bdcf34 1368
f444de05
JB		 1369 switch (ieee80211_get_channel_mode(local, NULL)) {
1370 case CHAN_MODE_HOPPING:
1371 return -EBUSY;
1372 case CHAN_MODE_FIXED:
0aaffa9b
JB		 1373 if (local->oper_channel != chan)
1374 return -EBUSY;
1375 if (!sdata && local->_oper_channel_type == channel_type)
f444de05 1376 return 0;
0aaffa9b 1377 break;
f444de05
JB		 1378 case CHAN_MODE_UNDEFINED:
1379 break;
1380 }
72bdcf34 1381
eeabee7e
BG		 1382 if (sdata)
1383 old_vif_oper_type = sdata->vif.bss_conf.channel_type;
1384 old_oper_type = local->_oper_channel_type;
72bdcf34 1385
0aaffa9b
JB		 1386 if (!ieee80211_set_channel_type(local, sdata, channel_type))
1387 return -EBUSY;
1388
eeabee7e
BG		 1389 old_oper = local->oper_channel;
1390 local->oper_channel = chan;
1391
1392 /* Update driver if changes were actually made. */
1393 if ((old_oper != local->oper_channel) ||
1394 (old_oper_type != local->_oper_channel_type))
1395 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
1396
ef5af747 1397 if (sdata && sdata->vif.type != NL80211_IFTYPE_MONITOR &&
eeabee7e 1398 old_vif_oper_type != sdata->vif.bss_conf.channel_type)
0aaffa9b
JB		 1399 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1400
1401 return 0;
72bdcf34
JM		 1402}
1403
665af4fc 1404#ifdef CONFIG_PM
ff1b6e69
JB		 1405static int ieee80211_suspend(struct wiphy *wiphy,
1406 struct cfg80211_wowlan *wowlan)
665af4fc 1407{
eecc4800 1408 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
665af4fc
BC		 1409}
1410
1411static int ieee80211_resume(struct wiphy *wiphy)
1412{
1413 return __ieee80211_resume(wiphy_priv(wiphy));
1414}
1415#else
1416#define ieee80211_suspend NULL
1417#define ieee80211_resume NULL
1418#endif
1419
2a519311
JB		 1420static int ieee80211_scan(struct wiphy *wiphy,
1421 struct net_device *dev,
1422 struct cfg80211_scan_request *req)
1423{
2ca27bcf 1424 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2a519311 1425
2ca27bcf
JB		 1426 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1427 case NL80211_IFTYPE_STATION:
1428 case NL80211_IFTYPE_ADHOC:
1429 case NL80211_IFTYPE_MESH_POINT:
1430 case NL80211_IFTYPE_P2P_CLIENT:
1431 break;
1432 case NL80211_IFTYPE_P2P_GO:
1433 if (sdata->local->ops->hw_scan)
1434 break;
e9d7732e
JB		 1435 /*
1436 * FIXME: implement NoA while scanning in software,
1437 * for now fall through to allow scanning only when
1438 * beaconing hasn't been configured yet
1439 */
2ca27bcf
JB		 1440 case NL80211_IFTYPE_AP:
1441 if (sdata->u.ap.beacon)
1442 return -EOPNOTSUPP;
1443 break;
1444 default:
1445 return -EOPNOTSUPP;
1446 }
2a519311
JB		 1447
1448 return ieee80211_request_scan(sdata, req);
1449}
1450
79f460ca
LC		 1451static int
1452ieee80211_sched_scan_start(struct wiphy *wiphy,
1453 struct net_device *dev,
1454 struct cfg80211_sched_scan_request *req)
1455{
1456 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1457
1458 if (!sdata->local->ops->sched_scan_start)
1459 return -EOPNOTSUPP;
1460
1461 return ieee80211_request_sched_scan_start(sdata, req);
1462}
1463
1464static int
85a9994a 1465ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
79f460ca
LC		 1466{
1467 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1468
1469 if (!sdata->local->ops->sched_scan_stop)
1470 return -EOPNOTSUPP;
1471
85a9994a 1472 return ieee80211_request_sched_scan_stop(sdata);
79f460ca
LC		 1473}
1474
636a5d36
JM		 1475static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1476 struct cfg80211_auth_request *req)
1477{
77fdaa12 1478 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1479}
1480
1481static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1482 struct cfg80211_assoc_request *req)
1483{
f444de05
JB		 1484 struct ieee80211_local *local = wiphy_priv(wiphy);
1485 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1486
1487 switch (ieee80211_get_channel_mode(local, sdata)) {
1488 case CHAN_MODE_HOPPING:
1489 return -EBUSY;
1490 case CHAN_MODE_FIXED:
1491 if (local->oper_channel == req->bss->channel)
1492 break;
1493 return -EBUSY;
1494 case CHAN_MODE_UNDEFINED:
1495 break;
1496 }
1497
77fdaa12 1498 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
636a5d36
JM		 1499}
1500
1501static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1502 struct cfg80211_deauth_request *req,
1503 void *cookie)
636a5d36 1504{
667503dd
JB		 1505 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev),
1506 req, cookie);
636a5d36
JM		 1507}
1508
1509static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
667503dd
JB		 1510 struct cfg80211_disassoc_request *req,
1511 void *cookie)
636a5d36 1512{
667503dd
JB		 1513 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev),
1514 req, cookie);
636a5d36
JM		 1515}
1516
af8cdcd8
JB		 1517static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1518 struct cfg80211_ibss_params *params)
1519{
f444de05 1520 struct ieee80211_local *local = wiphy_priv(wiphy);
af8cdcd8
JB		 1521 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1522
f444de05
JB		 1523 switch (ieee80211_get_channel_mode(local, sdata)) {
1524 case CHAN_MODE_HOPPING:
1525 return -EBUSY;
1526 case CHAN_MODE_FIXED:
1527 if (!params->channel_fixed)
1528 return -EBUSY;
1529 if (local->oper_channel == params->channel)
1530 break;
1531 return -EBUSY;
1532 case CHAN_MODE_UNDEFINED:
1533 break;
1534 }
1535
af8cdcd8
JB		 1536 return ieee80211_ibss_join(sdata, params);
1537}
1538
1539static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1540{
1541 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1542
1543 return ieee80211_ibss_leave(sdata);
1544}
1545
b9a5f8ca
JM		 1546static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
1547{
1548 struct ieee80211_local *local = wiphy_priv(wiphy);
24487981 1549 int err;
b9a5f8ca 1550
f23a4780
AN		 1551 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
1552 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
1553
1554 if (err)
1555 return err;
1556 }
1557
310bc676
LT		 1558 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
1559 err = drv_set_coverage_class(local, wiphy->coverage_class);
1560
1561 if (err)
1562 return err;
1563 }
1564
b9a5f8ca 1565 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
24487981 1566 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
b9a5f8ca 1567
24487981
JB		 1568 if (err)
1569 return err;
b9a5f8ca
JM		 1570 }
1571
1572 if (changed & WIPHY_PARAM_RETRY_SHORT)
1573 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
1574 if (changed & WIPHY_PARAM_RETRY_LONG)
1575 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
1576 if (changed &
1577 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
1578 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
1579
1580 return 0;
1581}
1582
7643a2c3 1583static int ieee80211_set_tx_power(struct wiphy *wiphy,
fa61cf70 1584 enum nl80211_tx_power_setting type, int mbm)
7643a2c3
JB		 1585{
1586 struct ieee80211_local *local = wiphy_priv(wiphy);
1587 struct ieee80211_channel *chan = local->hw.conf.channel;
1588 u32 changes = 0;
7643a2c3
JB		 1589
1590 switch (type) {
fa61cf70 1591 case NL80211_TX_POWER_AUTOMATIC:
7643a2c3
JB		 1592 local->user_power_level = -1;
1593 break;
fa61cf70
JO		 1594 case NL80211_TX_POWER_LIMITED:
1595 if (mbm < 0 || (mbm % 100))
1596 return -EOPNOTSUPP;
1597 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1598 break;
fa61cf70
JO		 1599 case NL80211_TX_POWER_FIXED:
1600 if (mbm < 0 || (mbm % 100))
1601 return -EOPNOTSUPP;
7643a2c3 1602 /* TODO: move to cfg80211 when it knows the channel */
fa61cf70 1603 if (MBM_TO_DBM(mbm) > chan->max_power)
7643a2c3 1604 return -EINVAL;
fa61cf70 1605 local->user_power_level = MBM_TO_DBM(mbm);
7643a2c3 1606 break;
7643a2c3
JB		 1607 }
1608
1609 ieee80211_hw_config(local, changes);
1610
1611 return 0;
1612}
1613
1614static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm)
1615{
1616 struct ieee80211_local *local = wiphy_priv(wiphy);
1617
1618 *dbm = local->hw.conf.power_level;
1619
7643a2c3
JB		 1620 return 0;
1621}
1622
ab737a4f 1623static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
388ac775 1624 const u8 *addr)
ab737a4f
JB		 1625{
1626 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1627
1628 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
1629
1630 return 0;
1631}
1632
1f87f7d3
JB		 1633static void ieee80211_rfkill_poll(struct wiphy *wiphy)
1634{
1635 struct ieee80211_local *local = wiphy_priv(wiphy);
1636
1637 drv_rfkill_poll(local);
1638}
1639
aff89a9b 1640#ifdef CONFIG_NL80211_TESTMODE
99783e2c 1641static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
aff89a9b
JB		 1642{
1643 struct ieee80211_local *local = wiphy_priv(wiphy);
1644
1645 if (!local->ops->testmode_cmd)
1646 return -EOPNOTSUPP;
1647
1648 return local->ops->testmode_cmd(&local->hw, data, len);
1649}
71063f0e
WYG		 1650
1651static int ieee80211_testmode_dump(struct wiphy *wiphy,
1652 struct sk_buff *skb,
1653 struct netlink_callback *cb,
1654 void *data, int len)
1655{
1656 struct ieee80211_local *local = wiphy_priv(wiphy);
1657
1658 if (!local->ops->testmode_dump)
1659 return -EOPNOTSUPP;
1660
1661 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
1662}
aff89a9b
JB		 1663#endif
1664
0f78231b
JB		 1665int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
1666 enum ieee80211_smps_mode smps_mode)
1667{
1668 const u8 *ap;
1669 enum ieee80211_smps_mode old_req;
1670 int err;
1671
243e6df4
JB		 1672 lockdep_assert_held(&sdata->u.mgd.mtx);
1673
0f78231b
JB		 1674 old_req = sdata->u.mgd.req_smps;
1675 sdata->u.mgd.req_smps = smps_mode;
1676
1677 if (old_req == smps_mode &&
1678 smps_mode != IEEE80211_SMPS_AUTOMATIC)
1679 return 0;
1680
1681 /*
1682 * If not associated, or current association is not an HT
1683 * association, there's no need to send an action frame.
1684 */
1685 if (!sdata->u.mgd.associated ||
0aaffa9b 1686 sdata->vif.bss_conf.channel_type == NL80211_CHAN_NO_HT) {
0f78231b 1687 mutex_lock(&sdata->local->iflist_mtx);
025e6be2 1688 ieee80211_recalc_smps(sdata->local);
0f78231b
JB		 1689 mutex_unlock(&sdata->local->iflist_mtx);
1690 return 0;
1691 }
1692
0c1ad2ca 1693 ap = sdata->u.mgd.associated->bssid;
0f78231b
JB		 1694
1695 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
1696 if (sdata->u.mgd.powersave)
1697 smps_mode = IEEE80211_SMPS_DYNAMIC;
1698 else
1699 smps_mode = IEEE80211_SMPS_OFF;
1700 }
1701
1702 /* send SM PS frame to AP */
1703 err = ieee80211_send_smps_action(sdata, smps_mode,
1704 ap, ap);
1705 if (err)
1706 sdata->u.mgd.req_smps = old_req;
1707
1708 return err;
1709}
1710
bc92afd9
JB		 1711static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
1712 bool enabled, int timeout)
1713{
1714 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1715 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bc92afd9 1716
e5de30c9
BP		 1717 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1718 return -EOPNOTSUPP;
1719
bc92afd9
JB		 1720 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
1721 return -EOPNOTSUPP;
1722
1723 if (enabled == sdata->u.mgd.powersave &&
ff616381 1724 timeout == local->dynamic_ps_forced_timeout)
bc92afd9
JB		 1725 return 0;
1726
1727 sdata->u.mgd.powersave = enabled;
ff616381 1728 local->dynamic_ps_forced_timeout = timeout;
bc92afd9 1729
0f78231b
JB		 1730 /* no change, but if automatic follow powersave */
1731 mutex_lock(&sdata->u.mgd.mtx);
1732 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
1733 mutex_unlock(&sdata->u.mgd.mtx);
1734
bc92afd9
JB		 1735 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
1736 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
1737
1738 ieee80211_recalc_ps(local, -1);
1739
1740 return 0;
1741}
1742
a97c13c3
JO		 1743static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
1744 struct net_device *dev,
1745 s32 rssi_thold, u32 rssi_hyst)
1746{
1747 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1748 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1749 struct ieee80211_vif *vif = &sdata->vif;
1750 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
1751
a97c13c3
JO		 1752 if (rssi_thold == bss_conf->cqm_rssi_thold &&
1753 rssi_hyst == bss_conf->cqm_rssi_hyst)
1754 return 0;
1755
1756 bss_conf->cqm_rssi_thold = rssi_thold;
1757 bss_conf->cqm_rssi_hyst = rssi_hyst;
1758
17e4ec14
JM		 1759 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
1760 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1761 return -EOPNOTSUPP;
1762 return 0;
1763 }
1764
a97c13c3
JO		 1765 /* tell the driver upon association, unless already associated */
1766 if (sdata->u.mgd.associated)
1767 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
1768
1769 return 0;
1770}
1771
9930380f
JB		 1772static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
1773 struct net_device *dev,
1774 const u8 *addr,
1775 const struct cfg80211_bitrate_mask *mask)
1776{
1777 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1778 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
bdbfd6b5 1779 int i, ret;
2c7e6bc9 1780
bdbfd6b5
SM		 1781 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
1782 ret = drv_set_bitrate_mask(local, sdata, mask);
1783 if (ret)
1784 return ret;
1785 }
9930380f 1786
37eb0b16
JM		 1787 for (i = 0; i < IEEE80211_NUM_BANDS; i++)
1788 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
9930380f 1789
37eb0b16 1790 return 0;
9930380f
JB		 1791}
1792
21f83589
JB		 1793static int ieee80211_remain_on_channel_hw(struct ieee80211_local *local,
1794 struct net_device *dev,
1795 struct ieee80211_channel *chan,
1796 enum nl80211_channel_type chantype,
1797 unsigned int duration, u64 *cookie)
1798{
1799 int ret;
1800 u32 random_cookie;
1801
1802 lockdep_assert_held(&local->mtx);
1803
1804 if (local->hw_roc_cookie)
1805 return -EBUSY;
1806 /* must be nonzero */
1807 random_cookie = random32() | 1;
1808
1809 *cookie = random_cookie;
1810 local->hw_roc_dev = dev;
1811 local->hw_roc_cookie = random_cookie;
1812 local->hw_roc_channel = chan;
1813 local->hw_roc_channel_type = chantype;
1814 local->hw_roc_duration = duration;
1815 ret = drv_remain_on_channel(local, chan, chantype, duration);
1816 if (ret) {
1817 local->hw_roc_channel = NULL;
1818 local->hw_roc_cookie = 0;
1819 }
1820
1821 return ret;
1822}
1823
b8bc4b0a
JB		 1824static int ieee80211_remain_on_channel(struct wiphy *wiphy,
1825 struct net_device *dev,
1826 struct ieee80211_channel *chan,
1827 enum nl80211_channel_type channel_type,
1828 unsigned int duration,
1829 u64 *cookie)
1830{
1831 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1832 struct ieee80211_local *local = sdata->local;
1833
1834 if (local->ops->remain_on_channel) {
1835 int ret;
1836
1837 mutex_lock(&local->mtx);
1838 ret = ieee80211_remain_on_channel_hw(local, dev,
1839 chan, channel_type,
1840 duration, cookie);
90fc4b3a 1841 local->hw_roc_for_tx = false;
21f83589
JB		 1842 mutex_unlock(&local->mtx);
1843
1844 return ret;
1845 }
b8bc4b0a
JB		 1846
1847 return ieee80211_wk_remain_on_channel(sdata, chan, channel_type,
1848 duration, cookie);
1849}
1850
21f83589
JB		 1851static int ieee80211_cancel_remain_on_channel_hw(struct ieee80211_local *local,
1852 u64 cookie)
1853{
1854 int ret;
1855
1856 lockdep_assert_held(&local->mtx);
1857
1858 if (local->hw_roc_cookie != cookie)
1859 return -ENOENT;
1860
1861 ret = drv_cancel_remain_on_channel(local);
1862 if (ret)
1863 return ret;
1864
1865 local->hw_roc_cookie = 0;
1866 local->hw_roc_channel = NULL;
1867
1868 ieee80211_recalc_idle(local);
1869
1870 return 0;
1871}
1872
b8bc4b0a
JB		 1873static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
1874 struct net_device *dev,
1875 u64 cookie)
1876{
1877 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
21f83589
JB		 1878 struct ieee80211_local *local = sdata->local;
1879
1880 if (local->ops->cancel_remain_on_channel) {
1881 int ret;
1882
1883 mutex_lock(&local->mtx);
1884 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
1885 mutex_unlock(&local->mtx);
1886
1887 return ret;
1888 }
b8bc4b0a
JB		 1889
1890 return ieee80211_wk_cancel_remain_on_channel(sdata, cookie);
1891}
1892
f30221e4
JB		 1893static enum work_done_result
1894ieee80211_offchan_tx_done(struct ieee80211_work *wk, struct sk_buff *skb)
1895{
1896 /*
1897 * Use the data embedded in the work struct for reporting
1898 * here so if the driver mangled the SKB before dropping
1899 * it (which is the only way we really should get here)
1900 * then we don't report mangled data.
1901 *
1902 * If there was no wait time, then by the time we get here
1903 * the driver will likely not have reported the status yet,
1904 * so in that case userspace will have to deal with it.
1905 */
1906
28a1bcdb 1907 if (wk->offchan_tx.wait && !wk->offchan_tx.status)
f30221e4
JB		 1908 cfg80211_mgmt_tx_status(wk->sdata->dev,
1909 (unsigned long) wk->offchan_tx.frame,
1910 wk->ie, wk->ie_len, false, GFP_KERNEL);
1911
1912 return WORK_DONE_DESTROY;
1913}
1914
2e161f78 1915static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct net_device *dev,
f7ca38df 1916 struct ieee80211_channel *chan, bool offchan,
2e161f78 1917 enum nl80211_channel_type channel_type,
f7ca38df 1918 bool channel_type_valid, unsigned int wait,
e9f935e3
RM		 1919 const u8 *buf, size_t len, bool no_cck,
1920 u64 *cookie)
026331c4 1921{
9d38d85d
JB		 1922 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1923 struct ieee80211_local *local = sdata->local;
1924 struct sk_buff *skb;
1925 struct sta_info *sta;
f30221e4 1926 struct ieee80211_work *wk;
9d38d85d
JB		 1927 const struct ieee80211_mgmt *mgmt = (void *)buf;
1928 u32 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
1929 IEEE80211_TX_CTL_REQ_TX_STATUS;
f30221e4 1930 bool is_offchan = false;
f7ca38df 1931
9d38d85d
JB		 1932 /* Check that we are on the requested channel for transmission */
1933 if (chan != local->tmp_channel &&
1934 chan != local->oper_channel)
f30221e4 1935 is_offchan = true;
9d38d85d
JB		 1936 if (channel_type_valid &&
1937 (channel_type != local->tmp_channel_type &&
1938 channel_type != local->_oper_channel_type))
f30221e4
JB		 1939 is_offchan = true;
1940
21f83589
JB		 1941 if (chan == local->hw_roc_channel) {
1942 /* TODO: check channel type? */
1943 is_offchan = false;
1944 flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
1945 }
1946
aad14ceb
RM		 1947 if (no_cck)
1948 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
1949
f30221e4 1950 if (is_offchan && !offchan)
9d38d85d
JB		 1951 return -EBUSY;
1952
1953 switch (sdata->vif.type) {
1954 case NL80211_IFTYPE_ADHOC:
663fcafd
JB		 1955 case NL80211_IFTYPE_AP:
1956 case NL80211_IFTYPE_AP_VLAN:
1957 case NL80211_IFTYPE_P2P_GO:
c7108a71 1958 case NL80211_IFTYPE_MESH_POINT:
663fcafd
JB		 1959 if (!ieee80211_is_action(mgmt->frame_control) ||
1960 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
9d38d85d
JB		 1961 break;
1962 rcu_read_lock();
1963 sta = sta_info_get(sdata, mgmt->da);
1964 rcu_read_unlock();
1965 if (!sta)
1966 return -ENOLINK;
1967 break;
1968 case NL80211_IFTYPE_STATION:
663fcafd 1969 case NL80211_IFTYPE_P2P_CLIENT:
9d38d85d
JB		 1970 break;
1971 default:
1972 return -EOPNOTSUPP;
1973 }
1974
1975 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
1976 if (!skb)
1977 return -ENOMEM;
1978 skb_reserve(skb, local->hw.extra_tx_headroom);
1979
1980 memcpy(skb_put(skb, len), buf, len);
1981
1982 IEEE80211_SKB_CB(skb)->flags = flags;
1983
1984 skb->dev = sdata->dev;
9d38d85d
JB		 1985
1986 *cookie = (unsigned long) skb;
f30221e4 1987
90fc4b3a
JB		 1988 if (is_offchan && local->ops->remain_on_channel) {
1989 unsigned int duration;
1990 int ret;
1991
1992 mutex_lock(&local->mtx);
1993 /*
1994 * If the duration is zero, then the driver
1995 * wouldn't actually do anything. Set it to
1996 * 100 for now.
1997 *
1998 * TODO: cancel the off-channel operation
1999 * when we get the SKB's TX status and
2000 * the wait time was zero before.
2001 */
2002 duration = 100;
2003 if (wait)
2004 duration = wait;
2005 ret = ieee80211_remain_on_channel_hw(local, dev, chan,
2006 channel_type,
2007 duration, cookie);
2008 if (ret) {
2009 kfree_skb(skb);
2010 mutex_unlock(&local->mtx);
2011 return ret;
2012 }
2013
2014 local->hw_roc_for_tx = true;
2015 local->hw_roc_duration = wait;
2016
2017 /*
2018 * queue up frame for transmission after
2019 * ieee80211_ready_on_channel call
2020 */
2021
2022 /* modify cookie to prevent API mismatches */
2023 *cookie ^= 2;
2024 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2025 local->hw_roc_skb = skb;
4334ec85 2026 local->hw_roc_skb_for_status = skb;
90fc4b3a
JB		 2027 mutex_unlock(&local->mtx);
2028
2029 return 0;
2030 }
2031
f30221e4
JB		 2032 /*
2033 * Can transmit right away if the channel was the
2034 * right one and there's no wait involved... If a
2035 * wait is involved, we might otherwise not be on
2036 * the right channel for long enough!
2037 */
2038 if (!is_offchan && !wait && !sdata->vif.bss_conf.idle) {
2039 ieee80211_tx_skb(sdata, skb);
2040 return 0;
2041 }
2042
2043 wk = kzalloc(sizeof(*wk) + len, GFP_KERNEL);
2044 if (!wk) {
2045 kfree_skb(skb);
2046 return -ENOMEM;
2047 }
2048
2049 wk->type = IEEE80211_WORK_OFFCHANNEL_TX;
2050 wk->chan = chan;
4d51e149 2051 wk->chan_type = channel_type;
f30221e4
JB		 2052 wk->sdata = sdata;
2053 wk->done = ieee80211_offchan_tx_done;
2054 wk->offchan_tx.frame = skb;
2055 wk->offchan_tx.wait = wait;
2056 wk->ie_len = len;
2057 memcpy(wk->ie, buf, len);
2058
2059 ieee80211_add_work(wk);
9d38d85d 2060 return 0;
026331c4
JM		 2061}
2062
f30221e4
JB		 2063static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2064 struct net_device *dev,
2065 u64 cookie)
2066{
2067 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2068 struct ieee80211_local *local = sdata->local;
2069 struct ieee80211_work *wk;
2070 int ret = -ENOENT;
2071
2072 mutex_lock(&local->mtx);
90fc4b3a
JB		 2073
2074 if (local->ops->cancel_remain_on_channel) {
2075 cookie ^= 2;
2076 ret = ieee80211_cancel_remain_on_channel_hw(local, cookie);
2077
2078 if (ret == 0) {
2079 kfree_skb(local->hw_roc_skb);
2080 local->hw_roc_skb = NULL;
4334ec85 2081 local->hw_roc_skb_for_status = NULL;
90fc4b3a
JB		 2082 }
2083
2084 mutex_unlock(&local->mtx);
2085
2086 return ret;
2087 }
2088
f30221e4
JB		 2089 list_for_each_entry(wk, &local->work_list, list) {
2090 if (wk->sdata != sdata)
2091 continue;
2092
2093 if (wk->type != IEEE80211_WORK_OFFCHANNEL_TX)
2094 continue;
2095
2096 if (cookie != (unsigned long) wk->offchan_tx.frame)
2097 continue;
2098
2099 wk->timeout = jiffies;
2100
2101 ieee80211_queue_work(&local->hw, &local->work_work);
2102 ret = 0;
2103 break;
2104 }
2105 mutex_unlock(&local->mtx);
2106
2107 return ret;
2108}
2109
7be5086d
JB		 2110static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2111 struct net_device *dev,
2112 u16 frame_type, bool reg)
2113{
2114 struct ieee80211_local *local = wiphy_priv(wiphy);
2115
2116 if (frame_type != (IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ))
2117 return;
2118
2119 if (reg)
2120 local->probe_req_reg++;
2121 else
2122 local->probe_req_reg--;
2123
2124 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2125}
2126
15d96753
BR		 2127static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2128{
2129 struct ieee80211_local *local = wiphy_priv(wiphy);
2130
2131 if (local->started)
2132 return -EOPNOTSUPP;
2133
2134 return drv_set_antenna(local, tx_ant, rx_ant);
2135}
2136
2137static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2138{
2139 struct ieee80211_local *local = wiphy_priv(wiphy);
2140
2141 return drv_get_antenna(local, tx_ant, rx_ant);
2142}
2143
38c09159
JL		 2144static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2145{
2146 struct ieee80211_local *local = wiphy_priv(wiphy);
2147
2148 return drv_set_ringparam(local, tx, rx);
2149}
2150
2151static void ieee80211_get_ringparam(struct wiphy *wiphy,
2152 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2153{
2154 struct ieee80211_local *local = wiphy_priv(wiphy);
2155
2156 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2157}
2158
c68f4b89
JB		 2159static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2160 struct net_device *dev,
2161 struct cfg80211_gtk_rekey_data *data)
2162{
2163 struct ieee80211_local *local = wiphy_priv(wiphy);
2164 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2165
2166 if (!local->ops->set_rekey_data)
2167 return -EOPNOTSUPP;
2168
2169 drv_set_rekey_data(local, sdata, data);
2170
2171 return 0;
2172}
2173
dfe018bf
AN		 2174static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2175{
2176 u8 *pos = (void *)skb_put(skb, 7);
2177
2178 *pos++ = WLAN_EID_EXT_CAPABILITY;
2179 *pos++ = 5; /* len */
2180 *pos++ = 0x0;
2181 *pos++ = 0x0;
2182 *pos++ = 0x0;
2183 *pos++ = 0x0;
2184 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2185}
2186
2187static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2188{
2189 struct ieee80211_local *local = sdata->local;
2190 u16 capab;
2191
2192 capab = 0;
2193 if (local->oper_channel->band != IEEE80211_BAND_2GHZ)
2194 return capab;
2195
2196 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2197 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2198 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2199 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2200
2201 return capab;
2202}
2203
2204static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2205 u8 *peer, u8 *bssid)
2206{
2207 struct ieee80211_tdls_lnkie *lnkid;
2208
2209 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2210
2211 lnkid->ie_type = WLAN_EID_LINK_ID;
2212 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2213
2214 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2215 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2216 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2217}
2218
2219static int
2220ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2221 u8 *peer, u8 action_code, u8 dialog_token,
2222 u16 status_code, struct sk_buff *skb)
2223{
2224 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2225 struct ieee80211_tdls_data *tf;
2226
2227 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2228
2229 memcpy(tf->da, peer, ETH_ALEN);
2230 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2231 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2232 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2233
2234 switch (action_code) {
2235 case WLAN_TDLS_SETUP_REQUEST:
2236 tf->category = WLAN_CATEGORY_TDLS;
2237 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2238
2239 skb_put(skb, sizeof(tf->u.setup_req));
2240 tf->u.setup_req.dialog_token = dialog_token;
2241 tf->u.setup_req.capability =
2242 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2243
2244 ieee80211_add_srates_ie(&sdata->vif, skb);
2245 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2246 ieee80211_tdls_add_ext_capab(skb);
2247 break;
2248 case WLAN_TDLS_SETUP_RESPONSE:
2249 tf->category = WLAN_CATEGORY_TDLS;
2250 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2251
2252 skb_put(skb, sizeof(tf->u.setup_resp));
2253 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2254 tf->u.setup_resp.dialog_token = dialog_token;
2255 tf->u.setup_resp.capability =
2256 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2257
2258 ieee80211_add_srates_ie(&sdata->vif, skb);
2259 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2260 ieee80211_tdls_add_ext_capab(skb);
2261 break;
2262 case WLAN_TDLS_SETUP_CONFIRM:
2263 tf->category = WLAN_CATEGORY_TDLS;
2264 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2265
2266 skb_put(skb, sizeof(tf->u.setup_cfm));
2267 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2268 tf->u.setup_cfm.dialog_token = dialog_token;
2269 break;
2270 case WLAN_TDLS_TEARDOWN:
2271 tf->category = WLAN_CATEGORY_TDLS;
2272 tf->action_code = WLAN_TDLS_TEARDOWN;
2273
2274 skb_put(skb, sizeof(tf->u.teardown));
2275 tf->u.teardown.reason_code = cpu_to_le16(status_code);
2276 break;
2277 case WLAN_TDLS_DISCOVERY_REQUEST:
2278 tf->category = WLAN_CATEGORY_TDLS;
2279 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2280
2281 skb_put(skb, sizeof(tf->u.discover_req));
2282 tf->u.discover_req.dialog_token = dialog_token;
2283 break;
2284 default:
2285 return -EINVAL;
2286 }
2287
2288 return 0;
2289}
2290
2291static int
2292ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2293 u8 *peer, u8 action_code, u8 dialog_token,
2294 u16 status_code, struct sk_buff *skb)
2295{
2296 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2297 struct ieee80211_mgmt *mgmt;
2298
2299 mgmt = (void *)skb_put(skb, 24);
2300 memset(mgmt, 0, 24);
2301 memcpy(mgmt->da, peer, ETH_ALEN);
2302 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2303 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2304
2305 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2306 IEEE80211_STYPE_ACTION);
2307
2308 switch (action_code) {
2309 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2310 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2311 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2312 mgmt->u.action.u.tdls_discover_resp.action_code =
2313 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2314 mgmt->u.action.u.tdls_discover_resp.dialog_token =
2315 dialog_token;
2316 mgmt->u.action.u.tdls_discover_resp.capability =
2317 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2318
2319 ieee80211_add_srates_ie(&sdata->vif, skb);
2320 ieee80211_add_ext_srates_ie(&sdata->vif, skb);
2321 ieee80211_tdls_add_ext_capab(skb);
2322 break;
2323 default:
2324 return -EINVAL;
2325 }
2326
2327 return 0;
2328}
2329
2330static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2331 u8 *peer, u8 action_code, u8 dialog_token,
2332 u16 status_code, const u8 *extra_ies,
2333 size_t extra_ies_len)
2334{
2335 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2336 struct ieee80211_local *local = sdata->local;
2337 struct ieee80211_tx_info *info;
2338 struct sk_buff *skb = NULL;
2339 bool send_direct;
2340 int ret;
2341
2342 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2343 return -ENOTSUPP;
2344
2345 /* make sure we are in managed mode, and associated */
2346 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2347 !sdata->u.mgd.associated)
2348 return -EINVAL;
2349
2350#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
2351 printk(KERN_DEBUG "TDLS mgmt action %d peer %pM\n", action_code, peer);
2352#endif
2353
2354 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2355 max(sizeof(struct ieee80211_mgmt),
2356 sizeof(struct ieee80211_tdls_data)) +
2357 50 + /* supported rates */
2358 7 + /* ext capab */
2359 extra_ies_len +
2360 sizeof(struct ieee80211_tdls_lnkie));
2361 if (!skb)
2362 return -ENOMEM;
2363
2364 info = IEEE80211_SKB_CB(skb);
2365 skb_reserve(skb, local->hw.extra_tx_headroom);
2366
2367 switch (action_code) {
2368 case WLAN_TDLS_SETUP_REQUEST:
2369 case WLAN_TDLS_SETUP_RESPONSE:
2370 case WLAN_TDLS_SETUP_CONFIRM:
2371 case WLAN_TDLS_TEARDOWN:
2372 case WLAN_TDLS_DISCOVERY_REQUEST:
2373 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2374 action_code, dialog_token,
2375 status_code, skb);
2376 send_direct = false;
2377 break;
2378 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2379 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2380 dialog_token, status_code,
2381 skb);
2382 send_direct = true;
2383 break;
2384 default:
2385 ret = -ENOTSUPP;
2386 break;
2387 }
2388
2389 if (ret < 0)
2390 goto fail;
2391
2392 if (extra_ies_len)
2393 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2394
2395 /* the TDLS link IE is always added last */
2396 switch (action_code) {
2397 case WLAN_TDLS_SETUP_REQUEST:
2398 case WLAN_TDLS_SETUP_CONFIRM:
2399 case WLAN_TDLS_TEARDOWN:
2400 case WLAN_TDLS_DISCOVERY_REQUEST:
2401 /* we are the initiator */
2402 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
2403 sdata->u.mgd.bssid);
2404 break;
2405 case WLAN_TDLS_SETUP_RESPONSE:
2406 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2407 /* we are the responder */
2408 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
2409 sdata->u.mgd.bssid);
2410 break;
2411 default:
2412 ret = -ENOTSUPP;
2413 goto fail;
2414 }
2415
2416 if (send_direct) {
2417 ieee80211_tx_skb(sdata, skb);
2418 return 0;
2419 }
2420
2421 /*
2422 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
2423 * we should default to AC_VI.
2424 */
2425 switch (action_code) {
2426 case WLAN_TDLS_SETUP_REQUEST:
2427 case WLAN_TDLS_SETUP_RESPONSE:
2428 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
2429 skb->priority = 2;
2430 break;
2431 default:
2432 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
2433 skb->priority = 5;
2434 break;
2435 }
2436
2437 /* disable bottom halves when entering the Tx path */
2438 local_bh_disable();
2439 ret = ieee80211_subif_start_xmit(skb, dev);
2440 local_bh_enable();
2441
2442 return ret;
2443
2444fail:
2445 dev_kfree_skb(skb);
2446 return ret;
2447}
2448
2449static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
2450 u8 *peer, enum nl80211_tdls_operation oper)
2451{
941c93cd 2452 struct sta_info *sta;
dfe018bf
AN		 2453 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2454
2455 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2456 return -ENOTSUPP;
2457
2458 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2459 return -EINVAL;
2460
2461#ifdef CONFIG_MAC80211_VERBOSE_TDLS_DEBUG
2462 printk(KERN_DEBUG "TDLS oper %d peer %pM\n", oper, peer);
2463#endif
2464
2465 switch (oper) {
2466 case NL80211_TDLS_ENABLE_LINK:
941c93cd
AN		 2467 rcu_read_lock();
2468 sta = sta_info_get(sdata, peer);
2469 if (!sta) {
2470 rcu_read_unlock();
2471 return -ENOLINK;
2472 }
2473
c2c98fde 2474 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
941c93cd 2475 rcu_read_unlock();
dfe018bf
AN		 2476 break;
2477 case NL80211_TDLS_DISABLE_LINK:
2478 return sta_info_destroy_addr(sdata, peer);
2479 case NL80211_TDLS_TEARDOWN:
2480 case NL80211_TDLS_SETUP:
2481 case NL80211_TDLS_DISCOVERY_REQ:
2482 /* We don't support in-driver setup/teardown/discovery */
2483 return -ENOTSUPP;
2484 default:
2485 return -ENOTSUPP;
2486 }
2487
2488 return 0;
2489}
2490
f0706e82
JB		 2491struct cfg80211_ops mac80211_config_ops = {
2492 .add_virtual_intf = ieee80211_add_iface,
2493 .del_virtual_intf = ieee80211_del_iface,
42613db7 2494 .change_virtual_intf = ieee80211_change_iface,
e8cbb4cb
JB		 2495 .add_key = ieee80211_add_key,
2496 .del_key = ieee80211_del_key,
62da92fb 2497 .get_key = ieee80211_get_key,
e8cbb4cb 2498 .set_default_key = ieee80211_config_default_key,
3cfcf6ac 2499 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
5dfdaf58
JB		 2500 .add_beacon = ieee80211_add_beacon,
2501 .set_beacon = ieee80211_set_beacon,
2502 .del_beacon = ieee80211_del_beacon,
4fd6931e
JB		 2503 .add_station = ieee80211_add_station,
2504 .del_station = ieee80211_del_station,
2505 .change_station = ieee80211_change_station,
7bbdd2d9 2506 .get_station = ieee80211_get_station,
c5dd9c2b 2507 .dump_station = ieee80211_dump_station,
1289723e 2508 .dump_survey = ieee80211_dump_survey,
c5dd9c2b
LCC		 2509#ifdef CONFIG_MAC80211_MESH
2510 .add_mpath = ieee80211_add_mpath,
2511 .del_mpath = ieee80211_del_mpath,
2512 .change_mpath = ieee80211_change_mpath,
2513 .get_mpath = ieee80211_get_mpath,
2514 .dump_mpath = ieee80211_dump_mpath,
24bdd9f4
JC		 2515 .update_mesh_config = ieee80211_update_mesh_config,
2516 .get_mesh_config = ieee80211_get_mesh_config,
29cbe68c
JB		 2517 .join_mesh = ieee80211_join_mesh,
2518 .leave_mesh = ieee80211_leave_mesh,
c5dd9c2b 2519#endif
9f1ba906 2520 .change_bss = ieee80211_change_bss,
31888487 2521 .set_txq_params = ieee80211_set_txq_params,
72bdcf34 2522 .set_channel = ieee80211_set_channel,
665af4fc
BC		 2523 .suspend = ieee80211_suspend,
2524 .resume = ieee80211_resume,
2a519311 2525 .scan = ieee80211_scan,
79f460ca
LC		 2526 .sched_scan_start = ieee80211_sched_scan_start,
2527 .sched_scan_stop = ieee80211_sched_scan_stop,
636a5d36
JM		 2528 .auth = ieee80211_auth,
2529 .assoc = ieee80211_assoc,
2530 .deauth = ieee80211_deauth,
2531 .disassoc = ieee80211_disassoc,
af8cdcd8
JB		 2532 .join_ibss = ieee80211_join_ibss,
2533 .leave_ibss = ieee80211_leave_ibss,
b9a5f8ca 2534 .set_wiphy_params = ieee80211_set_wiphy_params,
7643a2c3
JB		 2535 .set_tx_power = ieee80211_set_tx_power,
2536 .get_tx_power = ieee80211_get_tx_power,
ab737a4f 2537 .set_wds_peer = ieee80211_set_wds_peer,
1f87f7d3 2538 .rfkill_poll = ieee80211_rfkill_poll,
aff89a9b 2539 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
71063f0e 2540 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
bc92afd9 2541 .set_power_mgmt = ieee80211_set_power_mgmt,
9930380f 2542 .set_bitrate_mask = ieee80211_set_bitrate_mask,
b8bc4b0a
JB		 2543 .remain_on_channel = ieee80211_remain_on_channel,
2544 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
2e161f78 2545 .mgmt_tx = ieee80211_mgmt_tx,
f30221e4 2546 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
a97c13c3 2547 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
7be5086d 2548 .mgmt_frame_register = ieee80211_mgmt_frame_register,
15d96753
BR		 2549 .set_antenna = ieee80211_set_antenna,
2550 .get_antenna = ieee80211_get_antenna,
38c09159
JL		 2551 .set_ringparam = ieee80211_set_ringparam,
2552 .get_ringparam = ieee80211_get_ringparam,
c68f4b89 2553 .set_rekey_data = ieee80211_set_rekey_data,
dfe018bf
AN		 2554 .tdls_oper = ieee80211_tdls_oper,
2555 .tdls_mgmt = ieee80211_tdls_mgmt,
f0706e82 2556};
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