]> git.proxmox.com Git - mirror_ubuntu-bionic-kernel.git/blob - net/mac80211/cfg.c
projects / mirror_ubuntu-bionic-kernel.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'x86/nuke386' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
[mirror_ubuntu-bionic-kernel.git] / net / mac80211 / cfg.c
1 /*
2 * mac80211 configuration hooks for cfg80211
3 *
4 * Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
5 *
6 * This file is GPLv2 as found in COPYING.
7 */
8
9 #include <linux/ieee80211.h>
10 #include <linux/nl80211.h>
11 #include <linux/rtnetlink.h>
12 #include <linux/slab.h>
13 #include <net/net_namespace.h>
14 #include <linux/rcupdate.h>
15 #include <linux/if_ether.h>
16 #include <net/cfg80211.h>
17 #include "ieee80211_i.h"
18 #include "driver-ops.h"
19 #include "cfg.h"
20 #include "rate.h"
21 #include "mesh.h"
22
23 static struct wireless_dev *ieee80211_add_iface(struct wiphy *wiphy,
24 const char *name,
25 enum nl80211_iftype type,
26 u32 *flags,
27 struct vif_params *params)
28 {
29 struct ieee80211_local *local = wiphy_priv(wiphy);
30 struct wireless_dev *wdev;
31 struct ieee80211_sub_if_data *sdata;
32 int err;
33
34 err = ieee80211_if_add(local, name, &wdev, type, params);
35 if (err)
36 return ERR_PTR(err);
37
38 if (type == NL80211_IFTYPE_MONITOR && flags) {
39 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
40 sdata->u.mntr_flags = *flags;
41 }
42
43 return wdev;
44 }
45
46 static int ieee80211_del_iface(struct wiphy *wiphy, struct wireless_dev *wdev)
47 {
48 ieee80211_if_remove(IEEE80211_WDEV_TO_SUB_IF(wdev));
49
50 return 0;
51 }
52
53 static int ieee80211_change_iface(struct wiphy *wiphy,
54 struct net_device *dev,
55 enum nl80211_iftype type, u32 *flags,
56 struct vif_params *params)
57 {
58 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
59 int ret;
60
61 ret = ieee80211_if_change_type(sdata, type);
62 if (ret)
63 return ret;
64
65 if (type == NL80211_IFTYPE_AP_VLAN &&
66 params && params->use_4addr == 0)
67 RCU_INIT_POINTER(sdata->u.vlan.sta, NULL);
68 else if (type == NL80211_IFTYPE_STATION &&
69 params && params->use_4addr >= 0)
70 sdata->u.mgd.use_4addr = params->use_4addr;
71
72 if (sdata->vif.type == NL80211_IFTYPE_MONITOR && flags) {
73 struct ieee80211_local *local = sdata->local;
74
75 if (ieee80211_sdata_running(sdata)) {
76 /*
77 * Prohibit MONITOR_FLAG_COOK_FRAMES to be
78 * changed while the interface is up.
79 * Else we would need to add a lot of cruft
80 * to update everything:
81 * cooked_mntrs, monitor and all fif_* counters
82 * reconfigure hardware
83 */
84 if ((*flags & MONITOR_FLAG_COOK_FRAMES) !=
85 (sdata->u.mntr_flags & MONITOR_FLAG_COOK_FRAMES))
86 return -EBUSY;
87
88 ieee80211_adjust_monitor_flags(sdata, -1);
89 sdata->u.mntr_flags = *flags;
90 ieee80211_adjust_monitor_flags(sdata, 1);
91
92 ieee80211_configure_filter(local);
93 } else {
94 /*
95 * Because the interface is down, ieee80211_do_stop
96 * and ieee80211_do_open take care of "everything"
97 * mentioned in the comment above.
98 */
99 sdata->u.mntr_flags = *flags;
100 }
101 }
102
103 return 0;
104 }
105
106 static int ieee80211_start_p2p_device(struct wiphy *wiphy,
107 struct wireless_dev *wdev)
108 {
109 return ieee80211_do_open(wdev, true);
110 }
111
112 static void ieee80211_stop_p2p_device(struct wiphy *wiphy,
113 struct wireless_dev *wdev)
114 {
115 ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev));
116 }
117
118 static int ieee80211_set_noack_map(struct wiphy *wiphy,
119 struct net_device *dev,
120 u16 noack_map)
121 {
122 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
123
124 sdata->noack_map = noack_map;
125 return 0;
126 }
127
128 static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev,
129 u8 key_idx, bool pairwise, const u8 *mac_addr,
130 struct key_params *params)
131 {
132 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
133 struct sta_info *sta = NULL;
134 struct ieee80211_key *key;
135 int err;
136
137 if (!ieee80211_sdata_running(sdata))
138 return -ENETDOWN;
139
140 /* reject WEP and TKIP keys if WEP failed to initialize */
141 switch (params->cipher) {
142 case WLAN_CIPHER_SUITE_WEP40:
143 case WLAN_CIPHER_SUITE_TKIP:
144 case WLAN_CIPHER_SUITE_WEP104:
145 if (IS_ERR(sdata->local->wep_tx_tfm))
146 return -EINVAL;
147 break;
148 default:
149 break;
150 }
151
152 key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len,
153 params->key, params->seq_len, params->seq);
154 if (IS_ERR(key))
155 return PTR_ERR(key);
156
157 if (pairwise)
158 key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE;
159
160 mutex_lock(&sdata->local->sta_mtx);
161
162 if (mac_addr) {
163 if (ieee80211_vif_is_mesh(&sdata->vif))
164 sta = sta_info_get(sdata, mac_addr);
165 else
166 sta = sta_info_get_bss(sdata, mac_addr);
167 if (!sta) {
168 ieee80211_key_free(sdata->local, key);
169 err = -ENOENT;
170 goto out_unlock;
171 }
172 }
173
174 switch (sdata->vif.type) {
175 case NL80211_IFTYPE_STATION:
176 if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED)
177 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
178 break;
179 case NL80211_IFTYPE_AP:
180 case NL80211_IFTYPE_AP_VLAN:
181 /* Keys without a station are used for TX only */
182 if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP))
183 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
184 break;
185 case NL80211_IFTYPE_ADHOC:
186 /* no MFP (yet) */
187 break;
188 case NL80211_IFTYPE_MESH_POINT:
189 #ifdef CONFIG_MAC80211_MESH
190 if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE)
191 key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT;
192 break;
193 #endif
194 case NL80211_IFTYPE_WDS:
195 case NL80211_IFTYPE_MONITOR:
196 case NL80211_IFTYPE_P2P_DEVICE:
197 case NL80211_IFTYPE_UNSPECIFIED:
198 case NUM_NL80211_IFTYPES:
199 case NL80211_IFTYPE_P2P_CLIENT:
200 case NL80211_IFTYPE_P2P_GO:
201 /* shouldn't happen */
202 WARN_ON_ONCE(1);
203 break;
204 }
205
206 err = ieee80211_key_link(key, sdata, sta);
207 if (err)
208 ieee80211_key_free(sdata->local, key);
209
210 out_unlock:
211 mutex_unlock(&sdata->local->sta_mtx);
212
213 return err;
214 }
215
216 static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev,
217 u8 key_idx, bool pairwise, const u8 *mac_addr)
218 {
219 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
220 struct ieee80211_local *local = sdata->local;
221 struct sta_info *sta;
222 struct ieee80211_key *key = NULL;
223 int ret;
224
225 mutex_lock(&local->sta_mtx);
226 mutex_lock(&local->key_mtx);
227
228 if (mac_addr) {
229 ret = -ENOENT;
230
231 sta = sta_info_get_bss(sdata, mac_addr);
232 if (!sta)
233 goto out_unlock;
234
235 if (pairwise)
236 key = key_mtx_dereference(local, sta->ptk);
237 else
238 key = key_mtx_dereference(local, sta->gtk[key_idx]);
239 } else
240 key = key_mtx_dereference(local, sdata->keys[key_idx]);
241
242 if (!key) {
243 ret = -ENOENT;
244 goto out_unlock;
245 }
246
247 __ieee80211_key_free(key);
248
249 ret = 0;
250 out_unlock:
251 mutex_unlock(&local->key_mtx);
252 mutex_unlock(&local->sta_mtx);
253
254 return ret;
255 }
256
257 static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev,
258 u8 key_idx, bool pairwise, const u8 *mac_addr,
259 void *cookie,
260 void (*callback)(void *cookie,
261 struct key_params *params))
262 {
263 struct ieee80211_sub_if_data *sdata;
264 struct sta_info *sta = NULL;
265 u8 seq[6] = {0};
266 struct key_params params;
267 struct ieee80211_key *key = NULL;
268 u64 pn64;
269 u32 iv32;
270 u16 iv16;
271 int err = -ENOENT;
272
273 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
274
275 rcu_read_lock();
276
277 if (mac_addr) {
278 sta = sta_info_get_bss(sdata, mac_addr);
279 if (!sta)
280 goto out;
281
282 if (pairwise)
283 key = rcu_dereference(sta->ptk);
284 else if (key_idx < NUM_DEFAULT_KEYS)
285 key = rcu_dereference(sta->gtk[key_idx]);
286 } else
287 key = rcu_dereference(sdata->keys[key_idx]);
288
289 if (!key)
290 goto out;
291
292 memset(&params, 0, sizeof(params));
293
294 params.cipher = key->conf.cipher;
295
296 switch (key->conf.cipher) {
297 case WLAN_CIPHER_SUITE_TKIP:
298 iv32 = key->u.tkip.tx.iv32;
299 iv16 = key->u.tkip.tx.iv16;
300
301 if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)
302 drv_get_tkip_seq(sdata->local,
303 key->conf.hw_key_idx,
304 &iv32, &iv16);
305
306 seq[0] = iv16 & 0xff;
307 seq[1] = (iv16 >> 8) & 0xff;
308 seq[2] = iv32 & 0xff;
309 seq[3] = (iv32 >> 8) & 0xff;
310 seq[4] = (iv32 >> 16) & 0xff;
311 seq[5] = (iv32 >> 24) & 0xff;
312 params.seq = seq;
313 params.seq_len = 6;
314 break;
315 case WLAN_CIPHER_SUITE_CCMP:
316 pn64 = atomic64_read(&key->u.ccmp.tx_pn);
317 seq[0] = pn64;
318 seq[1] = pn64 >> 8;
319 seq[2] = pn64 >> 16;
320 seq[3] = pn64 >> 24;
321 seq[4] = pn64 >> 32;
322 seq[5] = pn64 >> 40;
323 params.seq = seq;
324 params.seq_len = 6;
325 break;
326 case WLAN_CIPHER_SUITE_AES_CMAC:
327 pn64 = atomic64_read(&key->u.aes_cmac.tx_pn);
328 seq[0] = pn64;
329 seq[1] = pn64 >> 8;
330 seq[2] = pn64 >> 16;
331 seq[3] = pn64 >> 24;
332 seq[4] = pn64 >> 32;
333 seq[5] = pn64 >> 40;
334 params.seq = seq;
335 params.seq_len = 6;
336 break;
337 }
338
339 params.key = key->conf.key;
340 params.key_len = key->conf.keylen;
341
342 callback(cookie, &params);
343 err = 0;
344
345 out:
346 rcu_read_unlock();
347 return err;
348 }
349
350 static int ieee80211_config_default_key(struct wiphy *wiphy,
351 struct net_device *dev,
352 u8 key_idx, bool uni,
353 bool multi)
354 {
355 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
356
357 ieee80211_set_default_key(sdata, key_idx, uni, multi);
358
359 return 0;
360 }
361
362 static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy,
363 struct net_device *dev,
364 u8 key_idx)
365 {
366 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
367
368 ieee80211_set_default_mgmt_key(sdata, key_idx);
369
370 return 0;
371 }
372
373 void sta_set_rate_info_tx(struct sta_info *sta,
374 const struct ieee80211_tx_rate *rate,
375 struct rate_info *rinfo)
376 {
377 rinfo->flags = 0;
378 if (rate->flags & IEEE80211_TX_RC_MCS) {
379 rinfo->flags |= RATE_INFO_FLAGS_MCS;
380 rinfo->mcs = rate->idx;
381 } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) {
382 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
383 rinfo->mcs = ieee80211_rate_get_vht_mcs(rate);
384 rinfo->nss = ieee80211_rate_get_vht_nss(rate);
385 } else {
386 struct ieee80211_supported_band *sband;
387 sband = sta->local->hw.wiphy->bands[
388 ieee80211_get_sdata_band(sta->sdata)];
389 rinfo->legacy = sband->bitrates[rate->idx].bitrate;
390 }
391 if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH)
392 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
393 if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH)
394 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
395 if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH)
396 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
397 if (rate->flags & IEEE80211_TX_RC_SHORT_GI)
398 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
399 }
400
401 void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo)
402 {
403 rinfo->flags = 0;
404
405 if (sta->last_rx_rate_flag & RX_FLAG_HT) {
406 rinfo->flags |= RATE_INFO_FLAGS_MCS;
407 rinfo->mcs = sta->last_rx_rate_idx;
408 } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) {
409 rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS;
410 rinfo->nss = sta->last_rx_rate_vht_nss;
411 rinfo->mcs = sta->last_rx_rate_idx;
412 } else {
413 struct ieee80211_supported_band *sband;
414
415 sband = sta->local->hw.wiphy->bands[
416 ieee80211_get_sdata_band(sta->sdata)];
417 rinfo->legacy =
418 sband->bitrates[sta->last_rx_rate_idx].bitrate;
419 }
420
421 if (sta->last_rx_rate_flag & RX_FLAG_40MHZ)
422 rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH;
423 if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI)
424 rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI;
425 if (sta->last_rx_rate_flag & RX_FLAG_80MHZ)
426 rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH;
427 if (sta->last_rx_rate_flag & RX_FLAG_80P80MHZ)
428 rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH;
429 if (sta->last_rx_rate_flag & RX_FLAG_160MHZ)
430 rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH;
431 }
432
433 static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo)
434 {
435 struct ieee80211_sub_if_data *sdata = sta->sdata;
436 struct ieee80211_local *local = sdata->local;
437 struct timespec uptime;
438
439 sinfo->generation = sdata->local->sta_generation;
440
441 sinfo->filled = STATION_INFO_INACTIVE_TIME |
442 STATION_INFO_RX_BYTES |
443 STATION_INFO_TX_BYTES |
444 STATION_INFO_RX_PACKETS |
445 STATION_INFO_TX_PACKETS |
446 STATION_INFO_TX_RETRIES |
447 STATION_INFO_TX_FAILED |
448 STATION_INFO_TX_BITRATE |
449 STATION_INFO_RX_BITRATE |
450 STATION_INFO_RX_DROP_MISC |
451 STATION_INFO_BSS_PARAM |
452 STATION_INFO_CONNECTED_TIME |
453 STATION_INFO_STA_FLAGS |
454 STATION_INFO_BEACON_LOSS_COUNT;
455
456 do_posix_clock_monotonic_gettime(&uptime);
457 sinfo->connected_time = uptime.tv_sec - sta->last_connected;
458
459 sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx);
460 sinfo->rx_bytes = sta->rx_bytes;
461 sinfo->tx_bytes = sta->tx_bytes;
462 sinfo->rx_packets = sta->rx_packets;
463 sinfo->tx_packets = sta->tx_packets;
464 sinfo->tx_retries = sta->tx_retry_count;
465 sinfo->tx_failed = sta->tx_retry_failed;
466 sinfo->rx_dropped_misc = sta->rx_dropped;
467 sinfo->beacon_loss_count = sta->beacon_loss_count;
468
469 if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) ||
470 (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) {
471 sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG;
472 if (!local->ops->get_rssi ||
473 drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal))
474 sinfo->signal = (s8)sta->last_signal;
475 sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal);
476 }
477
478 sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate);
479 sta_set_rate_info_rx(sta, &sinfo->rxrate);
480
481 if (ieee80211_vif_is_mesh(&sdata->vif)) {
482 #ifdef CONFIG_MAC80211_MESH
483 sinfo->filled |= STATION_INFO_LLID |
484 STATION_INFO_PLID |
485 STATION_INFO_PLINK_STATE;
486
487 sinfo->llid = le16_to_cpu(sta->llid);
488 sinfo->plid = le16_to_cpu(sta->plid);
489 sinfo->plink_state = sta->plink_state;
490 if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) {
491 sinfo->filled |= STATION_INFO_T_OFFSET;
492 sinfo->t_offset = sta->t_offset;
493 }
494 #endif
495 }
496
497 sinfo->bss_param.flags = 0;
498 if (sdata->vif.bss_conf.use_cts_prot)
499 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT;
500 if (sdata->vif.bss_conf.use_short_preamble)
501 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE;
502 if (sdata->vif.bss_conf.use_short_slot)
503 sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME;
504 sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period;
505 sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int;
506
507 sinfo->sta_flags.set = 0;
508 sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) |
509 BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) |
510 BIT(NL80211_STA_FLAG_WME) |
511 BIT(NL80211_STA_FLAG_MFP) |
512 BIT(NL80211_STA_FLAG_AUTHENTICATED) |
513 BIT(NL80211_STA_FLAG_TDLS_PEER);
514 if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
515 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED);
516 if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE))
517 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE);
518 if (test_sta_flag(sta, WLAN_STA_WME))
519 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME);
520 if (test_sta_flag(sta, WLAN_STA_MFP))
521 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP);
522 if (test_sta_flag(sta, WLAN_STA_AUTH))
523 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED);
524 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER))
525 sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER);
526 }
527
528 static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = {
529 "rx_packets", "rx_bytes", "wep_weak_iv_count",
530 "rx_duplicates", "rx_fragments", "rx_dropped",
531 "tx_packets", "tx_bytes", "tx_fragments",
532 "tx_filtered", "tx_retry_failed", "tx_retries",
533 "beacon_loss", "sta_state", "txrate", "rxrate", "signal",
534 "channel", "noise", "ch_time", "ch_time_busy",
535 "ch_time_ext_busy", "ch_time_rx", "ch_time_tx"
536 };
537 #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats)
538
539 static int ieee80211_get_et_sset_count(struct wiphy *wiphy,
540 struct net_device *dev,
541 int sset)
542 {
543 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
544 int rv = 0;
545
546 if (sset == ETH_SS_STATS)
547 rv += STA_STATS_LEN;
548
549 rv += drv_get_et_sset_count(sdata, sset);
550
551 if (rv == 0)
552 return -EOPNOTSUPP;
553 return rv;
554 }
555
556 static void ieee80211_get_et_stats(struct wiphy *wiphy,
557 struct net_device *dev,
558 struct ethtool_stats *stats,
559 u64 *data)
560 {
561 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
562 struct ieee80211_chanctx_conf *chanctx_conf;
563 struct ieee80211_channel *channel;
564 struct sta_info *sta;
565 struct ieee80211_local *local = sdata->local;
566 struct station_info sinfo;
567 struct survey_info survey;
568 int i, q;
569 #define STA_STATS_SURVEY_LEN 7
570
571 memset(data, 0, sizeof(u64) * STA_STATS_LEN);
572
573 #define ADD_STA_STATS(sta) \
574 do { \
575 data[i++] += sta->rx_packets; \
576 data[i++] += sta->rx_bytes; \
577 data[i++] += sta->wep_weak_iv_count; \
578 data[i++] += sta->num_duplicates; \
579 data[i++] += sta->rx_fragments; \
580 data[i++] += sta->rx_dropped; \
581 \
582 data[i++] += sta->tx_packets; \
583 data[i++] += sta->tx_bytes; \
584 data[i++] += sta->tx_fragments; \
585 data[i++] += sta->tx_filtered_count; \
586 data[i++] += sta->tx_retry_failed; \
587 data[i++] += sta->tx_retry_count; \
588 data[i++] += sta->beacon_loss_count; \
589 } while (0)
590
591 /* For Managed stations, find the single station based on BSSID
592 * and use that. For interface types, iterate through all available
593 * stations and add stats for any station that is assigned to this
594 * network device.
595 */
596
597 mutex_lock(&local->sta_mtx);
598
599 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
600 sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid);
601
602 if (!(sta && !WARN_ON(sta->sdata->dev != dev)))
603 goto do_survey;
604
605 i = 0;
606 ADD_STA_STATS(sta);
607
608 data[i++] = sta->sta_state;
609
610 sinfo.filled = 0;
611 sta_set_sinfo(sta, &sinfo);
612
613 if (sinfo.filled & STATION_INFO_TX_BITRATE)
614 data[i] = 100000 *
615 cfg80211_calculate_bitrate(&sinfo.txrate);
616 i++;
617 if (sinfo.filled & STATION_INFO_RX_BITRATE)
618 data[i] = 100000 *
619 cfg80211_calculate_bitrate(&sinfo.rxrate);
620 i++;
621
622 if (sinfo.filled & STATION_INFO_SIGNAL_AVG)
623 data[i] = (u8)sinfo.signal_avg;
624 i++;
625 } else {
626 list_for_each_entry(sta, &local->sta_list, list) {
627 /* Make sure this station belongs to the proper dev */
628 if (sta->sdata->dev != dev)
629 continue;
630
631 i = 0;
632 ADD_STA_STATS(sta);
633 }
634 }
635
636 do_survey:
637 i = STA_STATS_LEN - STA_STATS_SURVEY_LEN;
638 /* Get survey stats for current channel */
639 survey.filled = 0;
640
641 rcu_read_lock();
642 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
643 if (chanctx_conf)
644 channel = chanctx_conf->def.chan;
645 else
646 channel = NULL;
647 rcu_read_unlock();
648
649 if (channel) {
650 q = 0;
651 do {
652 survey.filled = 0;
653 if (drv_get_survey(local, q, &survey) != 0) {
654 survey.filled = 0;
655 break;
656 }
657 q++;
658 } while (channel != survey.channel);
659 }
660
661 if (survey.filled)
662 data[i++] = survey.channel->center_freq;
663 else
664 data[i++] = 0;
665 if (survey.filled & SURVEY_INFO_NOISE_DBM)
666 data[i++] = (u8)survey.noise;
667 else
668 data[i++] = -1LL;
669 if (survey.filled & SURVEY_INFO_CHANNEL_TIME)
670 data[i++] = survey.channel_time;
671 else
672 data[i++] = -1LL;
673 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY)
674 data[i++] = survey.channel_time_busy;
675 else
676 data[i++] = -1LL;
677 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY)
678 data[i++] = survey.channel_time_ext_busy;
679 else
680 data[i++] = -1LL;
681 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX)
682 data[i++] = survey.channel_time_rx;
683 else
684 data[i++] = -1LL;
685 if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX)
686 data[i++] = survey.channel_time_tx;
687 else
688 data[i++] = -1LL;
689
690 mutex_unlock(&local->sta_mtx);
691
692 if (WARN_ON(i != STA_STATS_LEN))
693 return;
694
695 drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN]));
696 }
697
698 static void ieee80211_get_et_strings(struct wiphy *wiphy,
699 struct net_device *dev,
700 u32 sset, u8 *data)
701 {
702 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
703 int sz_sta_stats = 0;
704
705 if (sset == ETH_SS_STATS) {
706 sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats);
707 memcpy(data, *ieee80211_gstrings_sta_stats, sz_sta_stats);
708 }
709 drv_get_et_strings(sdata, sset, &(data[sz_sta_stats]));
710 }
711
712 static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev,
713 int idx, u8 *mac, struct station_info *sinfo)
714 {
715 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
716 struct ieee80211_local *local = sdata->local;
717 struct sta_info *sta;
718 int ret = -ENOENT;
719
720 mutex_lock(&local->sta_mtx);
721
722 sta = sta_info_get_by_idx(sdata, idx);
723 if (sta) {
724 ret = 0;
725 memcpy(mac, sta->sta.addr, ETH_ALEN);
726 sta_set_sinfo(sta, sinfo);
727 }
728
729 mutex_unlock(&local->sta_mtx);
730
731 return ret;
732 }
733
734 static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev,
735 int idx, struct survey_info *survey)
736 {
737 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
738
739 return drv_get_survey(local, idx, survey);
740 }
741
742 static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev,
743 u8 *mac, struct station_info *sinfo)
744 {
745 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
746 struct ieee80211_local *local = sdata->local;
747 struct sta_info *sta;
748 int ret = -ENOENT;
749
750 mutex_lock(&local->sta_mtx);
751
752 sta = sta_info_get_bss(sdata, mac);
753 if (sta) {
754 ret = 0;
755 sta_set_sinfo(sta, sinfo);
756 }
757
758 mutex_unlock(&local->sta_mtx);
759
760 return ret;
761 }
762
763 static int ieee80211_set_monitor_channel(struct wiphy *wiphy,
764 struct cfg80211_chan_def *chandef)
765 {
766 struct ieee80211_local *local = wiphy_priv(wiphy);
767 struct ieee80211_sub_if_data *sdata;
768 int ret = 0;
769
770 if (cfg80211_chandef_identical(&local->monitor_chandef, chandef))
771 return 0;
772
773 mutex_lock(&local->iflist_mtx);
774 if (local->use_chanctx) {
775 sdata = rcu_dereference_protected(
776 local->monitor_sdata,
777 lockdep_is_held(&local->iflist_mtx));
778 if (sdata) {
779 ieee80211_vif_release_channel(sdata);
780 ret = ieee80211_vif_use_channel(sdata, chandef,
781 IEEE80211_CHANCTX_EXCLUSIVE);
782 }
783 } else if (local->open_count == local->monitors) {
784 local->_oper_channel = chandef->chan;
785 local->_oper_channel_type = cfg80211_get_chandef_type(chandef);
786 ieee80211_hw_config(local, 0);
787 }
788
789 if (ret == 0)
790 local->monitor_chandef = *chandef;
791 mutex_unlock(&local->iflist_mtx);
792
793 return ret;
794 }
795
796 static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata,
797 const u8 *resp, size_t resp_len)
798 {
799 struct probe_resp *new, *old;
800
801 if (!resp || !resp_len)
802 return 1;
803
804 old = rtnl_dereference(sdata->u.ap.probe_resp);
805
806 new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL);
807 if (!new)
808 return -ENOMEM;
809
810 new->len = resp_len;
811 memcpy(new->data, resp, resp_len);
812
813 rcu_assign_pointer(sdata->u.ap.probe_resp, new);
814 if (old)
815 kfree_rcu(old, rcu_head);
816
817 return 0;
818 }
819
820 static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata,
821 struct cfg80211_beacon_data *params)
822 {
823 struct beacon_data *new, *old;
824 int new_head_len, new_tail_len;
825 int size, err;
826 u32 changed = BSS_CHANGED_BEACON;
827
828 old = rtnl_dereference(sdata->u.ap.beacon);
829
830 /* Need to have a beacon head if we don't have one yet */
831 if (!params->head && !old)
832 return -EINVAL;
833
834 /* new or old head? */
835 if (params->head)
836 new_head_len = params->head_len;
837 else
838 new_head_len = old->head_len;
839
840 /* new or old tail? */
841 if (params->tail || !old)
842 /* params->tail_len will be zero for !params->tail */
843 new_tail_len = params->tail_len;
844 else
845 new_tail_len = old->tail_len;
846
847 size = sizeof(*new) + new_head_len + new_tail_len;
848
849 new = kzalloc(size, GFP_KERNEL);
850 if (!new)
851 return -ENOMEM;
852
853 /* start filling the new info now */
854
855 /*
856 * pointers go into the block we allocated,
857 * memory is | beacon_data | head | tail |
858 */
859 new->head = ((u8 *) new) + sizeof(*new);
860 new->tail = new->head + new_head_len;
861 new->head_len = new_head_len;
862 new->tail_len = new_tail_len;
863
864 /* copy in head */
865 if (params->head)
866 memcpy(new->head, params->head, new_head_len);
867 else
868 memcpy(new->head, old->head, new_head_len);
869
870 /* copy in optional tail */
871 if (params->tail)
872 memcpy(new->tail, params->tail, new_tail_len);
873 else
874 if (old)
875 memcpy(new->tail, old->tail, new_tail_len);
876
877 err = ieee80211_set_probe_resp(sdata, params->probe_resp,
878 params->probe_resp_len);
879 if (err < 0)
880 return err;
881 if (err == 0)
882 changed |= BSS_CHANGED_AP_PROBE_RESP;
883
884 rcu_assign_pointer(sdata->u.ap.beacon, new);
885
886 if (old)
887 kfree_rcu(old, rcu_head);
888
889 return changed;
890 }
891
892 static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev,
893 struct cfg80211_ap_settings *params)
894 {
895 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
896 struct beacon_data *old;
897 struct ieee80211_sub_if_data *vlan;
898 u32 changed = BSS_CHANGED_BEACON_INT |
899 BSS_CHANGED_BEACON_ENABLED |
900 BSS_CHANGED_BEACON |
901 BSS_CHANGED_SSID |
902 BSS_CHANGED_P2P_PS;
903 int err;
904
905 old = rtnl_dereference(sdata->u.ap.beacon);
906 if (old)
907 return -EALREADY;
908
909 /* TODO: make hostapd tell us what it wants */
910 sdata->smps_mode = IEEE80211_SMPS_OFF;
911 sdata->needed_rx_chains = sdata->local->rx_chains;
912
913 err = ieee80211_vif_use_channel(sdata, &params->chandef,
914 IEEE80211_CHANCTX_SHARED);
915 if (err)
916 return err;
917
918 /*
919 * Apply control port protocol, this allows us to
920 * not encrypt dynamic WEP control frames.
921 */
922 sdata->control_port_protocol = params->crypto.control_port_ethertype;
923 sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt;
924 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) {
925 vlan->control_port_protocol =
926 params->crypto.control_port_ethertype;
927 vlan->control_port_no_encrypt =
928 params->crypto.control_port_no_encrypt;
929 }
930
931 sdata->vif.bss_conf.beacon_int = params->beacon_interval;
932 sdata->vif.bss_conf.dtim_period = params->dtim_period;
933
934 sdata->vif.bss_conf.ssid_len = params->ssid_len;
935 if (params->ssid_len)
936 memcpy(sdata->vif.bss_conf.ssid, params->ssid,
937 params->ssid_len);
938 sdata->vif.bss_conf.hidden_ssid =
939 (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE);
940
941 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
942 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
943
944 err = ieee80211_assign_beacon(sdata, &params->beacon);
945 if (err < 0)
946 return err;
947 changed |= err;
948
949 err = drv_start_ap(sdata->local, sdata);
950 if (err) {
951 old = rtnl_dereference(sdata->u.ap.beacon);
952 if (old)
953 kfree_rcu(old, rcu_head);
954 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
955 return err;
956 }
957
958 ieee80211_bss_info_change_notify(sdata, changed);
959
960 netif_carrier_on(dev);
961 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
962 netif_carrier_on(vlan->dev);
963
964 return 0;
965 }
966
967 static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev,
968 struct cfg80211_beacon_data *params)
969 {
970 struct ieee80211_sub_if_data *sdata;
971 struct beacon_data *old;
972 int err;
973
974 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
975
976 old = rtnl_dereference(sdata->u.ap.beacon);
977 if (!old)
978 return -ENOENT;
979
980 err = ieee80211_assign_beacon(sdata, params);
981 if (err < 0)
982 return err;
983 ieee80211_bss_info_change_notify(sdata, err);
984 return 0;
985 }
986
987 static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev)
988 {
989 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
990 struct ieee80211_sub_if_data *vlan;
991 struct ieee80211_local *local = sdata->local;
992 struct beacon_data *old_beacon;
993 struct probe_resp *old_probe_resp;
994
995 old_beacon = rtnl_dereference(sdata->u.ap.beacon);
996 if (!old_beacon)
997 return -ENOENT;
998 old_probe_resp = rtnl_dereference(sdata->u.ap.probe_resp);
999
1000 /* turn off carrier for this interface and dependent VLANs */
1001 list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list)
1002 netif_carrier_off(vlan->dev);
1003 netif_carrier_off(dev);
1004
1005 /* remove beacon and probe response */
1006 RCU_INIT_POINTER(sdata->u.ap.beacon, NULL);
1007 RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL);
1008 kfree_rcu(old_beacon, rcu_head);
1009 if (old_probe_resp)
1010 kfree_rcu(old_probe_resp, rcu_head);
1011
1012 sta_info_flush(local, sdata);
1013 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED);
1014
1015 drv_stop_ap(sdata->local, sdata);
1016
1017 /* free all potentially still buffered bcast frames */
1018 local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf);
1019 skb_queue_purge(&sdata->u.ap.ps.bc_buf);
1020
1021 ieee80211_vif_release_channel(sdata);
1022
1023 return 0;
1024 }
1025
1026 /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */
1027 struct iapp_layer2_update {
1028 u8 da[ETH_ALEN]; /* broadcast */
1029 u8 sa[ETH_ALEN]; /* STA addr */
1030 __be16 len; /* 6 */
1031 u8 dsap; /* 0 */
1032 u8 ssap; /* 0 */
1033 u8 control;
1034 u8 xid_info[3];
1035 } __packed;
1036
1037 static void ieee80211_send_layer2_update(struct sta_info *sta)
1038 {
1039 struct iapp_layer2_update *msg;
1040 struct sk_buff *skb;
1041
1042 /* Send Level 2 Update Frame to update forwarding tables in layer 2
1043 * bridge devices */
1044
1045 skb = dev_alloc_skb(sizeof(*msg));
1046 if (!skb)
1047 return;
1048 msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg));
1049
1050 /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID)
1051 * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */
1052
1053 eth_broadcast_addr(msg->da);
1054 memcpy(msg->sa, sta->sta.addr, ETH_ALEN);
1055 msg->len = htons(6);
1056 msg->dsap = 0;
1057 msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */
1058 msg->control = 0xaf; /* XID response lsb.1111F101.
1059 * F=0 (no poll command; unsolicited frame) */
1060 msg->xid_info[0] = 0x81; /* XID format identifier */
1061 msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */
1062 msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */
1063
1064 skb->dev = sta->sdata->dev;
1065 skb->protocol = eth_type_trans(skb, sta->sdata->dev);
1066 memset(skb->cb, 0, sizeof(skb->cb));
1067 netif_rx_ni(skb);
1068 }
1069
1070 static int sta_apply_parameters(struct ieee80211_local *local,
1071 struct sta_info *sta,
1072 struct station_parameters *params)
1073 {
1074 int ret = 0;
1075 u32 rates;
1076 int i, j;
1077 struct ieee80211_supported_band *sband;
1078 struct ieee80211_sub_if_data *sdata = sta->sdata;
1079 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
1080 u32 mask, set;
1081
1082 sband = local->hw.wiphy->bands[band];
1083
1084 mask = params->sta_flags_mask;
1085 set = params->sta_flags_set;
1086
1087 /*
1088 * In mesh mode, we can clear AUTHENTICATED flag but must
1089 * also make ASSOCIATED follow appropriately for the driver
1090 * API. See also below, after AUTHORIZED changes.
1091 */
1092 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1093 /* cfg80211 should not allow this in non-mesh modes */
1094 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1095 return -EINVAL;
1096
1097 if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED) &&
1098 !test_sta_flag(sta, WLAN_STA_AUTH)) {
1099 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1100 if (ret)
1101 return ret;
1102 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1103 if (ret)
1104 return ret;
1105 }
1106 }
1107
1108 if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1109 if (set & BIT(NL80211_STA_FLAG_AUTHORIZED))
1110 ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED);
1111 else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED))
1112 ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC);
1113 if (ret)
1114 return ret;
1115 }
1116
1117 if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) {
1118 /* cfg80211 should not allow this in non-mesh modes */
1119 if (WARN_ON(!ieee80211_vif_is_mesh(&sdata->vif)))
1120 return -EINVAL;
1121
1122 if (!(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) &&
1123 test_sta_flag(sta, WLAN_STA_AUTH)) {
1124 ret = sta_info_move_state(sta, IEEE80211_STA_AUTH);
1125 if (ret)
1126 return ret;
1127 ret = sta_info_move_state(sta, IEEE80211_STA_NONE);
1128 if (ret)
1129 return ret;
1130 }
1131 }
1132
1133
1134 if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) {
1135 if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE))
1136 set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1137 else
1138 clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE);
1139 }
1140
1141 if (mask & BIT(NL80211_STA_FLAG_WME)) {
1142 if (set & BIT(NL80211_STA_FLAG_WME)) {
1143 set_sta_flag(sta, WLAN_STA_WME);
1144 sta->sta.wme = true;
1145 } else {
1146 clear_sta_flag(sta, WLAN_STA_WME);
1147 sta->sta.wme = false;
1148 }
1149 }
1150
1151 if (mask & BIT(NL80211_STA_FLAG_MFP)) {
1152 if (set & BIT(NL80211_STA_FLAG_MFP))
1153 set_sta_flag(sta, WLAN_STA_MFP);
1154 else
1155 clear_sta_flag(sta, WLAN_STA_MFP);
1156 }
1157
1158 if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
1159 if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
1160 set_sta_flag(sta, WLAN_STA_TDLS_PEER);
1161 else
1162 clear_sta_flag(sta, WLAN_STA_TDLS_PEER);
1163 }
1164
1165 if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
1166 sta->sta.uapsd_queues = params->uapsd_queues;
1167 sta->sta.max_sp = params->max_sp;
1168 }
1169
1170 /*
1171 * cfg80211 validates this (1-2007) and allows setting the AID
1172 * only when creating a new station entry
1173 */
1174 if (params->aid)
1175 sta->sta.aid = params->aid;
1176
1177 /*
1178 * FIXME: updating the following information is racy when this
1179 * function is called from ieee80211_change_station().
1180 * However, all this information should be static so
1181 * maybe we should just reject attemps to change it.
1182 */
1183
1184 if (params->listen_interval >= 0)
1185 sta->listen_interval = params->listen_interval;
1186
1187 if (params->supported_rates) {
1188 rates = 0;
1189
1190 for (i = 0; i < params->supported_rates_len; i++) {
1191 int rate = (params->supported_rates[i] & 0x7f) * 5;
1192 for (j = 0; j < sband->n_bitrates; j++) {
1193 if (sband->bitrates[j].bitrate == rate)
1194 rates |= BIT(j);
1195 }
1196 }
1197 sta->sta.supp_rates[band] = rates;
1198 }
1199
1200 if (params->ht_capa)
1201 ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
1202 params->ht_capa,
1203 &sta->sta.ht_cap);
1204
1205 if (params->vht_capa)
1206 ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband,
1207 params->vht_capa,
1208 &sta->sta.vht_cap);
1209
1210 if (ieee80211_vif_is_mesh(&sdata->vif)) {
1211 #ifdef CONFIG_MAC80211_MESH
1212 if (sdata->u.mesh.security & IEEE80211_MESH_SEC_SECURED)
1213 switch (params->plink_state) {
1214 case NL80211_PLINK_LISTEN:
1215 case NL80211_PLINK_ESTAB:
1216 case NL80211_PLINK_BLOCKED:
1217 sta->plink_state = params->plink_state;
1218 break;
1219 default:
1220 /* nothing */
1221 break;
1222 }
1223 else
1224 switch (params->plink_action) {
1225 case PLINK_ACTION_OPEN:
1226 mesh_plink_open(sta);
1227 break;
1228 case PLINK_ACTION_BLOCK:
1229 mesh_plink_block(sta);
1230 break;
1231 }
1232 #endif
1233 }
1234
1235 return 0;
1236 }
1237
1238 static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
1239 u8 *mac, struct station_parameters *params)
1240 {
1241 struct ieee80211_local *local = wiphy_priv(wiphy);
1242 struct sta_info *sta;
1243 struct ieee80211_sub_if_data *sdata;
1244 int err;
1245 int layer2_update;
1246
1247 if (params->vlan) {
1248 sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1249
1250 if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1251 sdata->vif.type != NL80211_IFTYPE_AP)
1252 return -EINVAL;
1253 } else
1254 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1255
1256 if (ether_addr_equal(mac, sdata->vif.addr))
1257 return -EINVAL;
1258
1259 if (is_multicast_ether_addr(mac))
1260 return -EINVAL;
1261
1262 sta = sta_info_alloc(sdata, mac, GFP_KERNEL);
1263 if (!sta)
1264 return -ENOMEM;
1265
1266 sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
1267 sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
1268
1269 err = sta_apply_parameters(local, sta, params);
1270 if (err) {
1271 sta_info_free(local, sta);
1272 return err;
1273 }
1274
1275 /*
1276 * for TDLS, rate control should be initialized only when supported
1277 * rates are known.
1278 */
1279 if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER))
1280 rate_control_rate_init(sta);
1281
1282 layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
1283 sdata->vif.type == NL80211_IFTYPE_AP;
1284
1285 err = sta_info_insert_rcu(sta);
1286 if (err) {
1287 rcu_read_unlock();
1288 return err;
1289 }
1290
1291 if (layer2_update)
1292 ieee80211_send_layer2_update(sta);
1293
1294 rcu_read_unlock();
1295
1296 return 0;
1297 }
1298
1299 static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev,
1300 u8 *mac)
1301 {
1302 struct ieee80211_local *local = wiphy_priv(wiphy);
1303 struct ieee80211_sub_if_data *sdata;
1304
1305 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1306
1307 if (mac)
1308 return sta_info_destroy_addr_bss(sdata, mac);
1309
1310 sta_info_flush(local, sdata);
1311 return 0;
1312 }
1313
1314 static int ieee80211_change_station(struct wiphy *wiphy,
1315 struct net_device *dev,
1316 u8 *mac,
1317 struct station_parameters *params)
1318 {
1319 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1320 struct ieee80211_local *local = wiphy_priv(wiphy);
1321 struct sta_info *sta;
1322 struct ieee80211_sub_if_data *vlansdata;
1323 int err;
1324
1325 mutex_lock(&local->sta_mtx);
1326
1327 sta = sta_info_get_bss(sdata, mac);
1328 if (!sta) {
1329 mutex_unlock(&local->sta_mtx);
1330 return -ENOENT;
1331 }
1332
1333 /* in station mode, supported rates are only valid with TDLS */
1334 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1335 params->supported_rates &&
1336 !test_sta_flag(sta, WLAN_STA_TDLS_PEER)) {
1337 mutex_unlock(&local->sta_mtx);
1338 return -EINVAL;
1339 }
1340
1341 if (params->vlan && params->vlan != sta->sdata->dev) {
1342 bool prev_4addr = false;
1343 bool new_4addr = false;
1344
1345 vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);
1346
1347 if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
1348 vlansdata->vif.type != NL80211_IFTYPE_AP) {
1349 mutex_unlock(&local->sta_mtx);
1350 return -EINVAL;
1351 }
1352
1353 if (params->vlan->ieee80211_ptr->use_4addr) {
1354 if (vlansdata->u.vlan.sta) {
1355 mutex_unlock(&local->sta_mtx);
1356 return -EBUSY;
1357 }
1358
1359 rcu_assign_pointer(vlansdata->u.vlan.sta, sta);
1360 new_4addr = true;
1361 }
1362
1363 if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
1364 sta->sdata->u.vlan.sta) {
1365 rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL);
1366 prev_4addr = true;
1367 }
1368
1369 sta->sdata = vlansdata;
1370
1371 if (sta->sta_state == IEEE80211_STA_AUTHORIZED &&
1372 prev_4addr != new_4addr) {
1373 if (new_4addr)
1374 atomic_dec(&sta->sdata->bss->num_mcast_sta);
1375 else
1376 atomic_inc(&sta->sdata->bss->num_mcast_sta);
1377 }
1378
1379 ieee80211_send_layer2_update(sta);
1380 }
1381
1382 err = sta_apply_parameters(local, sta, params);
1383 if (err) {
1384 mutex_unlock(&local->sta_mtx);
1385 return err;
1386 }
1387
1388 if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && params->supported_rates)
1389 rate_control_rate_init(sta);
1390
1391 mutex_unlock(&local->sta_mtx);
1392
1393 if (sdata->vif.type == NL80211_IFTYPE_STATION &&
1394 params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) {
1395 ieee80211_recalc_ps(local, -1);
1396 ieee80211_recalc_ps_vif(sdata);
1397 }
1398 return 0;
1399 }
1400
1401 #ifdef CONFIG_MAC80211_MESH
1402 static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev,
1403 u8 *dst, u8 *next_hop)
1404 {
1405 struct ieee80211_sub_if_data *sdata;
1406 struct mesh_path *mpath;
1407 struct sta_info *sta;
1408 int err;
1409
1410 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1411
1412 rcu_read_lock();
1413 sta = sta_info_get(sdata, next_hop);
1414 if (!sta) {
1415 rcu_read_unlock();
1416 return -ENOENT;
1417 }
1418
1419 err = mesh_path_add(dst, sdata);
1420 if (err) {
1421 rcu_read_unlock();
1422 return err;
1423 }
1424
1425 mpath = mesh_path_lookup(dst, sdata);
1426 if (!mpath) {
1427 rcu_read_unlock();
1428 return -ENXIO;
1429 }
1430 mesh_path_fix_nexthop(mpath, sta);
1431
1432 rcu_read_unlock();
1433 return 0;
1434 }
1435
1436 static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev,
1437 u8 *dst)
1438 {
1439 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1440
1441 if (dst)
1442 return mesh_path_del(dst, sdata);
1443
1444 mesh_path_flush_by_iface(sdata);
1445 return 0;
1446 }
1447
1448 static int ieee80211_change_mpath(struct wiphy *wiphy,
1449 struct net_device *dev,
1450 u8 *dst, u8 *next_hop)
1451 {
1452 struct ieee80211_sub_if_data *sdata;
1453 struct mesh_path *mpath;
1454 struct sta_info *sta;
1455
1456 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1457
1458 rcu_read_lock();
1459
1460 sta = sta_info_get(sdata, next_hop);
1461 if (!sta) {
1462 rcu_read_unlock();
1463 return -ENOENT;
1464 }
1465
1466 mpath = mesh_path_lookup(dst, sdata);
1467 if (!mpath) {
1468 rcu_read_unlock();
1469 return -ENOENT;
1470 }
1471
1472 mesh_path_fix_nexthop(mpath, sta);
1473
1474 rcu_read_unlock();
1475 return 0;
1476 }
1477
1478 static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop,
1479 struct mpath_info *pinfo)
1480 {
1481 struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop);
1482
1483 if (next_hop_sta)
1484 memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN);
1485 else
1486 memset(next_hop, 0, ETH_ALEN);
1487
1488 memset(pinfo, 0, sizeof(*pinfo));
1489
1490 pinfo->generation = mesh_paths_generation;
1491
1492 pinfo->filled = MPATH_INFO_FRAME_QLEN |
1493 MPATH_INFO_SN |
1494 MPATH_INFO_METRIC |
1495 MPATH_INFO_EXPTIME |
1496 MPATH_INFO_DISCOVERY_TIMEOUT |
1497 MPATH_INFO_DISCOVERY_RETRIES |
1498 MPATH_INFO_FLAGS;
1499
1500 pinfo->frame_qlen = mpath->frame_queue.qlen;
1501 pinfo->sn = mpath->sn;
1502 pinfo->metric = mpath->metric;
1503 if (time_before(jiffies, mpath->exp_time))
1504 pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies);
1505 pinfo->discovery_timeout =
1506 jiffies_to_msecs(mpath->discovery_timeout);
1507 pinfo->discovery_retries = mpath->discovery_retries;
1508 if (mpath->flags & MESH_PATH_ACTIVE)
1509 pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE;
1510 if (mpath->flags & MESH_PATH_RESOLVING)
1511 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING;
1512 if (mpath->flags & MESH_PATH_SN_VALID)
1513 pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID;
1514 if (mpath->flags & MESH_PATH_FIXED)
1515 pinfo->flags |= NL80211_MPATH_FLAG_FIXED;
1516 if (mpath->flags & MESH_PATH_RESOLVED)
1517 pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED;
1518 }
1519
1520 static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev,
1521 u8 *dst, u8 *next_hop, struct mpath_info *pinfo)
1522
1523 {
1524 struct ieee80211_sub_if_data *sdata;
1525 struct mesh_path *mpath;
1526
1527 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1528
1529 rcu_read_lock();
1530 mpath = mesh_path_lookup(dst, sdata);
1531 if (!mpath) {
1532 rcu_read_unlock();
1533 return -ENOENT;
1534 }
1535 memcpy(dst, mpath->dst, ETH_ALEN);
1536 mpath_set_pinfo(mpath, next_hop, pinfo);
1537 rcu_read_unlock();
1538 return 0;
1539 }
1540
1541 static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev,
1542 int idx, u8 *dst, u8 *next_hop,
1543 struct mpath_info *pinfo)
1544 {
1545 struct ieee80211_sub_if_data *sdata;
1546 struct mesh_path *mpath;
1547
1548 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1549
1550 rcu_read_lock();
1551 mpath = mesh_path_lookup_by_idx(idx, sdata);
1552 if (!mpath) {
1553 rcu_read_unlock();
1554 return -ENOENT;
1555 }
1556 memcpy(dst, mpath->dst, ETH_ALEN);
1557 mpath_set_pinfo(mpath, next_hop, pinfo);
1558 rcu_read_unlock();
1559 return 0;
1560 }
1561
1562 static int ieee80211_get_mesh_config(struct wiphy *wiphy,
1563 struct net_device *dev,
1564 struct mesh_config *conf)
1565 {
1566 struct ieee80211_sub_if_data *sdata;
1567 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1568
1569 memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config));
1570 return 0;
1571 }
1572
1573 static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask)
1574 {
1575 return (mask >> (parm-1)) & 0x1;
1576 }
1577
1578 static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh,
1579 const struct mesh_setup *setup)
1580 {
1581 u8 *new_ie;
1582 const u8 *old_ie;
1583 struct ieee80211_sub_if_data *sdata = container_of(ifmsh,
1584 struct ieee80211_sub_if_data, u.mesh);
1585
1586 /* allocate information elements */
1587 new_ie = NULL;
1588 old_ie = ifmsh->ie;
1589
1590 if (setup->ie_len) {
1591 new_ie = kmemdup(setup->ie, setup->ie_len,
1592 GFP_KERNEL);
1593 if (!new_ie)
1594 return -ENOMEM;
1595 }
1596 ifmsh->ie_len = setup->ie_len;
1597 ifmsh->ie = new_ie;
1598 kfree(old_ie);
1599
1600 /* now copy the rest of the setup parameters */
1601 ifmsh->mesh_id_len = setup->mesh_id_len;
1602 memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len);
1603 ifmsh->mesh_sp_id = setup->sync_method;
1604 ifmsh->mesh_pp_id = setup->path_sel_proto;
1605 ifmsh->mesh_pm_id = setup->path_metric;
1606 ifmsh->security = IEEE80211_MESH_SEC_NONE;
1607 if (setup->is_authenticated)
1608 ifmsh->security |= IEEE80211_MESH_SEC_AUTHED;
1609 if (setup->is_secure)
1610 ifmsh->security |= IEEE80211_MESH_SEC_SECURED;
1611
1612 /* mcast rate setting in Mesh Node */
1613 memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate,
1614 sizeof(setup->mcast_rate));
1615
1616 return 0;
1617 }
1618
1619 static int ieee80211_update_mesh_config(struct wiphy *wiphy,
1620 struct net_device *dev, u32 mask,
1621 const struct mesh_config *nconf)
1622 {
1623 struct mesh_config *conf;
1624 struct ieee80211_sub_if_data *sdata;
1625 struct ieee80211_if_mesh *ifmsh;
1626
1627 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1628 ifmsh = &sdata->u.mesh;
1629
1630 /* Set the config options which we are interested in setting */
1631 conf = &(sdata->u.mesh.mshcfg);
1632 if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask))
1633 conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout;
1634 if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask))
1635 conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout;
1636 if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask))
1637 conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout;
1638 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask))
1639 conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks;
1640 if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask))
1641 conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries;
1642 if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask))
1643 conf->dot11MeshTTL = nconf->dot11MeshTTL;
1644 if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask))
1645 conf->element_ttl = nconf->element_ttl;
1646 if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask))
1647 conf->auto_open_plinks = nconf->auto_open_plinks;
1648 if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask))
1649 conf->dot11MeshNbrOffsetMaxNeighbor =
1650 nconf->dot11MeshNbrOffsetMaxNeighbor;
1651 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask))
1652 conf->dot11MeshHWMPmaxPREQretries =
1653 nconf->dot11MeshHWMPmaxPREQretries;
1654 if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask))
1655 conf->path_refresh_time = nconf->path_refresh_time;
1656 if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask))
1657 conf->min_discovery_timeout = nconf->min_discovery_timeout;
1658 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask))
1659 conf->dot11MeshHWMPactivePathTimeout =
1660 nconf->dot11MeshHWMPactivePathTimeout;
1661 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask))
1662 conf->dot11MeshHWMPpreqMinInterval =
1663 nconf->dot11MeshHWMPpreqMinInterval;
1664 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask))
1665 conf->dot11MeshHWMPperrMinInterval =
1666 nconf->dot11MeshHWMPperrMinInterval;
1667 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME,
1668 mask))
1669 conf->dot11MeshHWMPnetDiameterTraversalTime =
1670 nconf->dot11MeshHWMPnetDiameterTraversalTime;
1671 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) {
1672 conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode;
1673 ieee80211_mesh_root_setup(ifmsh);
1674 }
1675 if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) {
1676 /* our current gate announcement implementation rides on root
1677 * announcements, so require this ifmsh to also be a root node
1678 * */
1679 if (nconf->dot11MeshGateAnnouncementProtocol &&
1680 !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) {
1681 conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN;
1682 ieee80211_mesh_root_setup(ifmsh);
1683 }
1684 conf->dot11MeshGateAnnouncementProtocol =
1685 nconf->dot11MeshGateAnnouncementProtocol;
1686 }
1687 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask))
1688 conf->dot11MeshHWMPRannInterval =
1689 nconf->dot11MeshHWMPRannInterval;
1690 if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask))
1691 conf->dot11MeshForwarding = nconf->dot11MeshForwarding;
1692 if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) {
1693 /* our RSSI threshold implementation is supported only for
1694 * devices that report signal in dBm.
1695 */
1696 if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM))
1697 return -ENOTSUPP;
1698 conf->rssi_threshold = nconf->rssi_threshold;
1699 }
1700 if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) {
1701 conf->ht_opmode = nconf->ht_opmode;
1702 sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode;
1703 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT);
1704 }
1705 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask))
1706 conf->dot11MeshHWMPactivePathToRootTimeout =
1707 nconf->dot11MeshHWMPactivePathToRootTimeout;
1708 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask))
1709 conf->dot11MeshHWMProotInterval =
1710 nconf->dot11MeshHWMProotInterval;
1711 if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask))
1712 conf->dot11MeshHWMPconfirmationInterval =
1713 nconf->dot11MeshHWMPconfirmationInterval;
1714 return 0;
1715 }
1716
1717 static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev,
1718 const struct mesh_config *conf,
1719 const struct mesh_setup *setup)
1720 {
1721 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1722 struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh;
1723 int err;
1724
1725 memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config));
1726 err = copy_mesh_setup(ifmsh, setup);
1727 if (err)
1728 return err;
1729
1730 /* can mesh use other SMPS modes? */
1731 sdata->smps_mode = IEEE80211_SMPS_OFF;
1732 sdata->needed_rx_chains = sdata->local->rx_chains;
1733
1734 err = ieee80211_vif_use_channel(sdata, &setup->chandef,
1735 IEEE80211_CHANCTX_SHARED);
1736 if (err)
1737 return err;
1738
1739 ieee80211_start_mesh(sdata);
1740
1741 return 0;
1742 }
1743
1744 static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev)
1745 {
1746 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1747
1748 ieee80211_stop_mesh(sdata);
1749 ieee80211_vif_release_channel(sdata);
1750
1751 return 0;
1752 }
1753 #endif
1754
1755 static int ieee80211_change_bss(struct wiphy *wiphy,
1756 struct net_device *dev,
1757 struct bss_parameters *params)
1758 {
1759 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1760 enum ieee80211_band band;
1761 u32 changed = 0;
1762
1763 if (!rtnl_dereference(sdata->u.ap.beacon))
1764 return -ENOENT;
1765
1766 band = ieee80211_get_sdata_band(sdata);
1767
1768 if (params->use_cts_prot >= 0) {
1769 sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot;
1770 changed |= BSS_CHANGED_ERP_CTS_PROT;
1771 }
1772 if (params->use_short_preamble >= 0) {
1773 sdata->vif.bss_conf.use_short_preamble =
1774 params->use_short_preamble;
1775 changed |= BSS_CHANGED_ERP_PREAMBLE;
1776 }
1777
1778 if (!sdata->vif.bss_conf.use_short_slot &&
1779 band == IEEE80211_BAND_5GHZ) {
1780 sdata->vif.bss_conf.use_short_slot = true;
1781 changed |= BSS_CHANGED_ERP_SLOT;
1782 }
1783
1784 if (params->use_short_slot_time >= 0) {
1785 sdata->vif.bss_conf.use_short_slot =
1786 params->use_short_slot_time;
1787 changed |= BSS_CHANGED_ERP_SLOT;
1788 }
1789
1790 if (params->basic_rates) {
1791 int i, j;
1792 u32 rates = 0;
1793 struct ieee80211_supported_band *sband = wiphy->bands[band];
1794
1795 for (i = 0; i < params->basic_rates_len; i++) {
1796 int rate = (params->basic_rates[i] & 0x7f) * 5;
1797 for (j = 0; j < sband->n_bitrates; j++) {
1798 if (sband->bitrates[j].bitrate == rate)
1799 rates |= BIT(j);
1800 }
1801 }
1802 sdata->vif.bss_conf.basic_rates = rates;
1803 changed |= BSS_CHANGED_BASIC_RATES;
1804 }
1805
1806 if (params->ap_isolate >= 0) {
1807 if (params->ap_isolate)
1808 sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1809 else
1810 sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS;
1811 }
1812
1813 if (params->ht_opmode >= 0) {
1814 sdata->vif.bss_conf.ht_operation_mode =
1815 (u16) params->ht_opmode;
1816 changed |= BSS_CHANGED_HT;
1817 }
1818
1819 if (params->p2p_ctwindow >= 0) {
1820 sdata->vif.bss_conf.p2p_ctwindow = params->p2p_ctwindow;
1821 changed |= BSS_CHANGED_P2P_PS;
1822 }
1823
1824 if (params->p2p_opp_ps >= 0) {
1825 sdata->vif.bss_conf.p2p_oppps = params->p2p_opp_ps;
1826 changed |= BSS_CHANGED_P2P_PS;
1827 }
1828
1829 ieee80211_bss_info_change_notify(sdata, changed);
1830
1831 return 0;
1832 }
1833
1834 static int ieee80211_set_txq_params(struct wiphy *wiphy,
1835 struct net_device *dev,
1836 struct ieee80211_txq_params *params)
1837 {
1838 struct ieee80211_local *local = wiphy_priv(wiphy);
1839 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1840 struct ieee80211_tx_queue_params p;
1841
1842 if (!local->ops->conf_tx)
1843 return -EOPNOTSUPP;
1844
1845 if (local->hw.queues < IEEE80211_NUM_ACS)
1846 return -EOPNOTSUPP;
1847
1848 memset(&p, 0, sizeof(p));
1849 p.aifs = params->aifs;
1850 p.cw_max = params->cwmax;
1851 p.cw_min = params->cwmin;
1852 p.txop = params->txop;
1853
1854 /*
1855 * Setting tx queue params disables u-apsd because it's only
1856 * called in master mode.
1857 */
1858 p.uapsd = false;
1859
1860 sdata->tx_conf[params->ac] = p;
1861 if (drv_conf_tx(local, sdata, params->ac, &p)) {
1862 wiphy_debug(local->hw.wiphy,
1863 "failed to set TX queue parameters for AC %d\n",
1864 params->ac);
1865 return -EINVAL;
1866 }
1867
1868 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
1869
1870 return 0;
1871 }
1872
1873 #ifdef CONFIG_PM
1874 static int ieee80211_suspend(struct wiphy *wiphy,
1875 struct cfg80211_wowlan *wowlan)
1876 {
1877 return __ieee80211_suspend(wiphy_priv(wiphy), wowlan);
1878 }
1879
1880 static int ieee80211_resume(struct wiphy *wiphy)
1881 {
1882 return __ieee80211_resume(wiphy_priv(wiphy));
1883 }
1884 #else
1885 #define ieee80211_suspend NULL
1886 #define ieee80211_resume NULL
1887 #endif
1888
1889 static int ieee80211_scan(struct wiphy *wiphy,
1890 struct cfg80211_scan_request *req)
1891 {
1892 struct ieee80211_sub_if_data *sdata;
1893
1894 sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev);
1895
1896 switch (ieee80211_vif_type_p2p(&sdata->vif)) {
1897 case NL80211_IFTYPE_STATION:
1898 case NL80211_IFTYPE_ADHOC:
1899 case NL80211_IFTYPE_MESH_POINT:
1900 case NL80211_IFTYPE_P2P_CLIENT:
1901 case NL80211_IFTYPE_P2P_DEVICE:
1902 break;
1903 case NL80211_IFTYPE_P2P_GO:
1904 if (sdata->local->ops->hw_scan)
1905 break;
1906 /*
1907 * FIXME: implement NoA while scanning in software,
1908 * for now fall through to allow scanning only when
1909 * beaconing hasn't been configured yet
1910 */
1911 case NL80211_IFTYPE_AP:
1912 /*
1913 * If the scan has been forced (and the driver supports
1914 * forcing), don't care about being beaconing already.
1915 * This will create problems to the attached stations (e.g. all
1916 * the frames sent while scanning on other channel will be
1917 * lost)
1918 */
1919 if (sdata->u.ap.beacon &&
1920 (!(wiphy->features & NL80211_FEATURE_AP_SCAN) ||
1921 !(req->flags & NL80211_SCAN_FLAG_AP)))
1922 return -EOPNOTSUPP;
1923 break;
1924 default:
1925 return -EOPNOTSUPP;
1926 }
1927
1928 return ieee80211_request_scan(sdata, req);
1929 }
1930
1931 static int
1932 ieee80211_sched_scan_start(struct wiphy *wiphy,
1933 struct net_device *dev,
1934 struct cfg80211_sched_scan_request *req)
1935 {
1936 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1937
1938 if (!sdata->local->ops->sched_scan_start)
1939 return -EOPNOTSUPP;
1940
1941 return ieee80211_request_sched_scan_start(sdata, req);
1942 }
1943
1944 static int
1945 ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev)
1946 {
1947 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1948
1949 if (!sdata->local->ops->sched_scan_stop)
1950 return -EOPNOTSUPP;
1951
1952 return ieee80211_request_sched_scan_stop(sdata);
1953 }
1954
1955 static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev,
1956 struct cfg80211_auth_request *req)
1957 {
1958 return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1959 }
1960
1961 static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev,
1962 struct cfg80211_assoc_request *req)
1963 {
1964 return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1965 }
1966
1967 static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev,
1968 struct cfg80211_deauth_request *req)
1969 {
1970 return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req);
1971 }
1972
1973 static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev,
1974 struct cfg80211_disassoc_request *req)
1975 {
1976 return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req);
1977 }
1978
1979 static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev,
1980 struct cfg80211_ibss_params *params)
1981 {
1982 return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params);
1983 }
1984
1985 static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev)
1986 {
1987 return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev));
1988 }
1989
1990 static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev,
1991 int rate[IEEE80211_NUM_BANDS])
1992 {
1993 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1994
1995 memcpy(sdata->vif.bss_conf.mcast_rate, rate, sizeof(rate));
1996
1997 return 0;
1998 }
1999
2000 static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed)
2001 {
2002 struct ieee80211_local *local = wiphy_priv(wiphy);
2003 int err;
2004
2005 if (changed & WIPHY_PARAM_FRAG_THRESHOLD) {
2006 err = drv_set_frag_threshold(local, wiphy->frag_threshold);
2007
2008 if (err)
2009 return err;
2010 }
2011
2012 if (changed & WIPHY_PARAM_COVERAGE_CLASS) {
2013 err = drv_set_coverage_class(local, wiphy->coverage_class);
2014
2015 if (err)
2016 return err;
2017 }
2018
2019 if (changed & WIPHY_PARAM_RTS_THRESHOLD) {
2020 err = drv_set_rts_threshold(local, wiphy->rts_threshold);
2021
2022 if (err)
2023 return err;
2024 }
2025
2026 if (changed & WIPHY_PARAM_RETRY_SHORT) {
2027 if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY)
2028 return -EINVAL;
2029 local->hw.conf.short_frame_max_tx_count = wiphy->retry_short;
2030 }
2031 if (changed & WIPHY_PARAM_RETRY_LONG) {
2032 if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY)
2033 return -EINVAL;
2034 local->hw.conf.long_frame_max_tx_count = wiphy->retry_long;
2035 }
2036 if (changed &
2037 (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG))
2038 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
2039
2040 return 0;
2041 }
2042
2043 static int ieee80211_set_tx_power(struct wiphy *wiphy,
2044 struct wireless_dev *wdev,
2045 enum nl80211_tx_power_setting type, int mbm)
2046 {
2047 struct ieee80211_local *local = wiphy_priv(wiphy);
2048 struct ieee80211_sub_if_data *sdata;
2049
2050 if (wdev) {
2051 sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2052
2053 switch (type) {
2054 case NL80211_TX_POWER_AUTOMATIC:
2055 sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2056 break;
2057 case NL80211_TX_POWER_LIMITED:
2058 case NL80211_TX_POWER_FIXED:
2059 if (mbm < 0 || (mbm % 100))
2060 return -EOPNOTSUPP;
2061 sdata->user_power_level = MBM_TO_DBM(mbm);
2062 break;
2063 }
2064
2065 ieee80211_recalc_txpower(sdata);
2066
2067 return 0;
2068 }
2069
2070 switch (type) {
2071 case NL80211_TX_POWER_AUTOMATIC:
2072 local->user_power_level = IEEE80211_UNSET_POWER_LEVEL;
2073 break;
2074 case NL80211_TX_POWER_LIMITED:
2075 case NL80211_TX_POWER_FIXED:
2076 if (mbm < 0 || (mbm % 100))
2077 return -EOPNOTSUPP;
2078 local->user_power_level = MBM_TO_DBM(mbm);
2079 break;
2080 }
2081
2082 mutex_lock(&local->iflist_mtx);
2083 list_for_each_entry(sdata, &local->interfaces, list)
2084 sdata->user_power_level = local->user_power_level;
2085 list_for_each_entry(sdata, &local->interfaces, list)
2086 ieee80211_recalc_txpower(sdata);
2087 mutex_unlock(&local->iflist_mtx);
2088
2089 return 0;
2090 }
2091
2092 static int ieee80211_get_tx_power(struct wiphy *wiphy,
2093 struct wireless_dev *wdev,
2094 int *dbm)
2095 {
2096 struct ieee80211_local *local = wiphy_priv(wiphy);
2097 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2098
2099 if (!local->use_chanctx)
2100 *dbm = local->hw.conf.power_level;
2101 else
2102 *dbm = sdata->vif.bss_conf.txpower;
2103
2104 return 0;
2105 }
2106
2107 static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev,
2108 const u8 *addr)
2109 {
2110 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2111
2112 memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN);
2113
2114 return 0;
2115 }
2116
2117 static void ieee80211_rfkill_poll(struct wiphy *wiphy)
2118 {
2119 struct ieee80211_local *local = wiphy_priv(wiphy);
2120
2121 drv_rfkill_poll(local);
2122 }
2123
2124 #ifdef CONFIG_NL80211_TESTMODE
2125 static int ieee80211_testmode_cmd(struct wiphy *wiphy, void *data, int len)
2126 {
2127 struct ieee80211_local *local = wiphy_priv(wiphy);
2128
2129 if (!local->ops->testmode_cmd)
2130 return -EOPNOTSUPP;
2131
2132 return local->ops->testmode_cmd(&local->hw, data, len);
2133 }
2134
2135 static int ieee80211_testmode_dump(struct wiphy *wiphy,
2136 struct sk_buff *skb,
2137 struct netlink_callback *cb,
2138 void *data, int len)
2139 {
2140 struct ieee80211_local *local = wiphy_priv(wiphy);
2141
2142 if (!local->ops->testmode_dump)
2143 return -EOPNOTSUPP;
2144
2145 return local->ops->testmode_dump(&local->hw, skb, cb, data, len);
2146 }
2147 #endif
2148
2149 int __ieee80211_request_smps(struct ieee80211_sub_if_data *sdata,
2150 enum ieee80211_smps_mode smps_mode)
2151 {
2152 const u8 *ap;
2153 enum ieee80211_smps_mode old_req;
2154 int err;
2155
2156 lockdep_assert_held(&sdata->u.mgd.mtx);
2157
2158 old_req = sdata->u.mgd.req_smps;
2159 sdata->u.mgd.req_smps = smps_mode;
2160
2161 if (old_req == smps_mode &&
2162 smps_mode != IEEE80211_SMPS_AUTOMATIC)
2163 return 0;
2164
2165 /*
2166 * If not associated, or current association is not an HT
2167 * association, there's no need to do anything, just store
2168 * the new value until we associate.
2169 */
2170 if (!sdata->u.mgd.associated ||
2171 sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT)
2172 return 0;
2173
2174 ap = sdata->u.mgd.associated->bssid;
2175
2176 if (smps_mode == IEEE80211_SMPS_AUTOMATIC) {
2177 if (sdata->u.mgd.powersave)
2178 smps_mode = IEEE80211_SMPS_DYNAMIC;
2179 else
2180 smps_mode = IEEE80211_SMPS_OFF;
2181 }
2182
2183 /* send SM PS frame to AP */
2184 err = ieee80211_send_smps_action(sdata, smps_mode,
2185 ap, ap);
2186 if (err)
2187 sdata->u.mgd.req_smps = old_req;
2188
2189 return err;
2190 }
2191
2192 static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev,
2193 bool enabled, int timeout)
2194 {
2195 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2196 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2197
2198 if (sdata->vif.type != NL80211_IFTYPE_STATION)
2199 return -EOPNOTSUPP;
2200
2201 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
2202 return -EOPNOTSUPP;
2203
2204 if (enabled == sdata->u.mgd.powersave &&
2205 timeout == local->dynamic_ps_forced_timeout)
2206 return 0;
2207
2208 sdata->u.mgd.powersave = enabled;
2209 local->dynamic_ps_forced_timeout = timeout;
2210
2211 /* no change, but if automatic follow powersave */
2212 mutex_lock(&sdata->u.mgd.mtx);
2213 __ieee80211_request_smps(sdata, sdata->u.mgd.req_smps);
2214 mutex_unlock(&sdata->u.mgd.mtx);
2215
2216 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
2217 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
2218
2219 ieee80211_recalc_ps(local, -1);
2220 ieee80211_recalc_ps_vif(sdata);
2221
2222 return 0;
2223 }
2224
2225 static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy,
2226 struct net_device *dev,
2227 s32 rssi_thold, u32 rssi_hyst)
2228 {
2229 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2230 struct ieee80211_vif *vif = &sdata->vif;
2231 struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
2232
2233 if (rssi_thold == bss_conf->cqm_rssi_thold &&
2234 rssi_hyst == bss_conf->cqm_rssi_hyst)
2235 return 0;
2236
2237 bss_conf->cqm_rssi_thold = rssi_thold;
2238 bss_conf->cqm_rssi_hyst = rssi_hyst;
2239
2240 /* tell the driver upon association, unless already associated */
2241 if (sdata->u.mgd.associated &&
2242 sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI)
2243 ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM);
2244
2245 return 0;
2246 }
2247
2248 static int ieee80211_set_bitrate_mask(struct wiphy *wiphy,
2249 struct net_device *dev,
2250 const u8 *addr,
2251 const struct cfg80211_bitrate_mask *mask)
2252 {
2253 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2254 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
2255 int i, ret;
2256
2257 if (!ieee80211_sdata_running(sdata))
2258 return -ENETDOWN;
2259
2260 if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) {
2261 ret = drv_set_bitrate_mask(local, sdata, mask);
2262 if (ret)
2263 return ret;
2264 }
2265
2266 for (i = 0; i < IEEE80211_NUM_BANDS; i++) {
2267 sdata->rc_rateidx_mask[i] = mask->control[i].legacy;
2268 memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].mcs,
2269 sizeof(mask->control[i].mcs));
2270 }
2271
2272 return 0;
2273 }
2274
2275 static int ieee80211_start_roc_work(struct ieee80211_local *local,
2276 struct ieee80211_sub_if_data *sdata,
2277 struct ieee80211_channel *channel,
2278 unsigned int duration, u64 *cookie,
2279 struct sk_buff *txskb)
2280 {
2281 struct ieee80211_roc_work *roc, *tmp;
2282 bool queued = false;
2283 int ret;
2284
2285 lockdep_assert_held(&local->mtx);
2286
2287 if (local->use_chanctx && !local->ops->remain_on_channel)
2288 return -EOPNOTSUPP;
2289
2290 roc = kzalloc(sizeof(*roc), GFP_KERNEL);
2291 if (!roc)
2292 return -ENOMEM;
2293
2294 roc->chan = channel;
2295 roc->duration = duration;
2296 roc->req_duration = duration;
2297 roc->frame = txskb;
2298 roc->mgmt_tx_cookie = (unsigned long)txskb;
2299 roc->sdata = sdata;
2300 INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work);
2301 INIT_LIST_HEAD(&roc->dependents);
2302
2303 /* if there's one pending or we're scanning, queue this one */
2304 if (!list_empty(&local->roc_list) || local->scanning)
2305 goto out_check_combine;
2306
2307 /* if not HW assist, just queue & schedule work */
2308 if (!local->ops->remain_on_channel) {
2309 ieee80211_queue_delayed_work(&local->hw, &roc->work, 0);
2310 goto out_queue;
2311 }
2312
2313 /* otherwise actually kick it off here (for error handling) */
2314
2315 /*
2316 * If the duration is zero, then the driver
2317 * wouldn't actually do anything. Set it to
2318 * 10 for now.
2319 *
2320 * TODO: cancel the off-channel operation
2321 * when we get the SKB's TX status and
2322 * the wait time was zero before.
2323 */
2324 if (!duration)
2325 duration = 10;
2326
2327 ret = drv_remain_on_channel(local, sdata, channel, duration);
2328 if (ret) {
2329 kfree(roc);
2330 return ret;
2331 }
2332
2333 roc->started = true;
2334 goto out_queue;
2335
2336 out_check_combine:
2337 list_for_each_entry(tmp, &local->roc_list, list) {
2338 if (tmp->chan != channel || tmp->sdata != sdata)
2339 continue;
2340
2341 /*
2342 * Extend this ROC if possible:
2343 *
2344 * If it hasn't started yet, just increase the duration
2345 * and add the new one to the list of dependents.
2346 */
2347 if (!tmp->started) {
2348 list_add_tail(&roc->list, &tmp->dependents);
2349 tmp->duration = max(tmp->duration, roc->duration);
2350 queued = true;
2351 break;
2352 }
2353
2354 /* If it has already started, it's more difficult ... */
2355 if (local->ops->remain_on_channel) {
2356 unsigned long j = jiffies;
2357
2358 /*
2359 * In the offloaded ROC case, if it hasn't begun, add
2360 * this new one to the dependent list to be handled
2361 * when the the master one begins. If it has begun,
2362 * check that there's still a minimum time left and
2363 * if so, start this one, transmitting the frame, but
2364 * add it to the list directly after this one with a
2365 * a reduced time so we'll ask the driver to execute
2366 * it right after finishing the previous one, in the
2367 * hope that it'll also be executed right afterwards,
2368 * effectively extending the old one.
2369 * If there's no minimum time left, just add it to the
2370 * normal list.
2371 */
2372 if (!tmp->hw_begun) {
2373 list_add_tail(&roc->list, &tmp->dependents);
2374 queued = true;
2375 break;
2376 }
2377
2378 if (time_before(j + IEEE80211_ROC_MIN_LEFT,
2379 tmp->hw_start_time +
2380 msecs_to_jiffies(tmp->duration))) {
2381 int new_dur;
2382
2383 ieee80211_handle_roc_started(roc);
2384
2385 new_dur = roc->duration -
2386 jiffies_to_msecs(tmp->hw_start_time +
2387 msecs_to_jiffies(
2388 tmp->duration) -
2389 j);
2390
2391 if (new_dur > 0) {
2392 /* add right after tmp */
2393 list_add(&roc->list, &tmp->list);
2394 } else {
2395 list_add_tail(&roc->list,
2396 &tmp->dependents);
2397 }
2398 queued = true;
2399 }
2400 } else if (del_timer_sync(&tmp->work.timer)) {
2401 unsigned long new_end;
2402
2403 /*
2404 * In the software ROC case, cancel the timer, if
2405 * that fails then the finish work is already
2406 * queued/pending and thus we queue the new ROC
2407 * normally, if that succeeds then we can extend
2408 * the timer duration and TX the frame (if any.)
2409 */
2410
2411 list_add_tail(&roc->list, &tmp->dependents);
2412 queued = true;
2413
2414 new_end = jiffies + msecs_to_jiffies(roc->duration);
2415
2416 /* ok, it was started & we canceled timer */
2417 if (time_after(new_end, tmp->work.timer.expires))
2418 mod_timer(&tmp->work.timer, new_end);
2419 else
2420 add_timer(&tmp->work.timer);
2421
2422 ieee80211_handle_roc_started(roc);
2423 }
2424 break;
2425 }
2426
2427 out_queue:
2428 if (!queued)
2429 list_add_tail(&roc->list, &local->roc_list);
2430
2431 /*
2432 * cookie is either the roc cookie (for normal roc)
2433 * or the SKB (for mgmt TX)
2434 */
2435 if (!txskb) {
2436 /* local->mtx protects this */
2437 local->roc_cookie_counter++;
2438 roc->cookie = local->roc_cookie_counter;
2439 /* wow, you wrapped 64 bits ... more likely a bug */
2440 if (WARN_ON(roc->cookie == 0)) {
2441 roc->cookie = 1;
2442 local->roc_cookie_counter++;
2443 }
2444 *cookie = roc->cookie;
2445 } else {
2446 *cookie = (unsigned long)txskb;
2447 }
2448
2449 return 0;
2450 }
2451
2452 static int ieee80211_remain_on_channel(struct wiphy *wiphy,
2453 struct wireless_dev *wdev,
2454 struct ieee80211_channel *chan,
2455 unsigned int duration,
2456 u64 *cookie)
2457 {
2458 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2459 struct ieee80211_local *local = sdata->local;
2460 int ret;
2461
2462 mutex_lock(&local->mtx);
2463 ret = ieee80211_start_roc_work(local, sdata, chan,
2464 duration, cookie, NULL);
2465 mutex_unlock(&local->mtx);
2466
2467 return ret;
2468 }
2469
2470 static int ieee80211_cancel_roc(struct ieee80211_local *local,
2471 u64 cookie, bool mgmt_tx)
2472 {
2473 struct ieee80211_roc_work *roc, *tmp, *found = NULL;
2474 int ret;
2475
2476 mutex_lock(&local->mtx);
2477 list_for_each_entry_safe(roc, tmp, &local->roc_list, list) {
2478 struct ieee80211_roc_work *dep, *tmp2;
2479
2480 list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) {
2481 if (!mgmt_tx && dep->cookie != cookie)
2482 continue;
2483 else if (mgmt_tx && dep->mgmt_tx_cookie != cookie)
2484 continue;
2485 /* found dependent item -- just remove it */
2486 list_del(&dep->list);
2487 mutex_unlock(&local->mtx);
2488
2489 ieee80211_roc_notify_destroy(dep);
2490 return 0;
2491 }
2492
2493 if (!mgmt_tx && roc->cookie != cookie)
2494 continue;
2495 else if (mgmt_tx && roc->mgmt_tx_cookie != cookie)
2496 continue;
2497
2498 found = roc;
2499 break;
2500 }
2501
2502 if (!found) {
2503 mutex_unlock(&local->mtx);
2504 return -ENOENT;
2505 }
2506
2507 /*
2508 * We found the item to cancel, so do that. Note that it
2509 * may have dependents, which we also cancel (and send
2510 * the expired signal for.) Not doing so would be quite
2511 * tricky here, but we may need to fix it later.
2512 */
2513
2514 if (local->ops->remain_on_channel) {
2515 if (found->started) {
2516 ret = drv_cancel_remain_on_channel(local);
2517 if (WARN_ON_ONCE(ret)) {
2518 mutex_unlock(&local->mtx);
2519 return ret;
2520 }
2521 }
2522
2523 list_del(&found->list);
2524
2525 if (found->started)
2526 ieee80211_start_next_roc(local);
2527 mutex_unlock(&local->mtx);
2528
2529 ieee80211_roc_notify_destroy(found);
2530 } else {
2531 /* work may be pending so use it all the time */
2532 found->abort = true;
2533 ieee80211_queue_delayed_work(&local->hw, &found->work, 0);
2534
2535 mutex_unlock(&local->mtx);
2536
2537 /* work will clean up etc */
2538 flush_delayed_work(&found->work);
2539 }
2540
2541 return 0;
2542 }
2543
2544 static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy,
2545 struct wireless_dev *wdev,
2546 u64 cookie)
2547 {
2548 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2549 struct ieee80211_local *local = sdata->local;
2550
2551 return ieee80211_cancel_roc(local, cookie, false);
2552 }
2553
2554 static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev,
2555 struct ieee80211_channel *chan, bool offchan,
2556 unsigned int wait, const u8 *buf, size_t len,
2557 bool no_cck, bool dont_wait_for_ack, u64 *cookie)
2558 {
2559 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2560 struct ieee80211_local *local = sdata->local;
2561 struct sk_buff *skb;
2562 struct sta_info *sta;
2563 const struct ieee80211_mgmt *mgmt = (void *)buf;
2564 bool need_offchan = false;
2565 u32 flags;
2566 int ret;
2567
2568 if (dont_wait_for_ack)
2569 flags = IEEE80211_TX_CTL_NO_ACK;
2570 else
2571 flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX |
2572 IEEE80211_TX_CTL_REQ_TX_STATUS;
2573
2574 if (no_cck)
2575 flags |= IEEE80211_TX_CTL_NO_CCK_RATE;
2576
2577 switch (sdata->vif.type) {
2578 case NL80211_IFTYPE_ADHOC:
2579 if (!sdata->vif.bss_conf.ibss_joined)
2580 need_offchan = true;
2581 /* fall through */
2582 #ifdef CONFIG_MAC80211_MESH
2583 case NL80211_IFTYPE_MESH_POINT:
2584 if (ieee80211_vif_is_mesh(&sdata->vif) &&
2585 !sdata->u.mesh.mesh_id_len)
2586 need_offchan = true;
2587 /* fall through */
2588 #endif
2589 case NL80211_IFTYPE_AP:
2590 case NL80211_IFTYPE_AP_VLAN:
2591 case NL80211_IFTYPE_P2P_GO:
2592 if (sdata->vif.type != NL80211_IFTYPE_ADHOC &&
2593 !ieee80211_vif_is_mesh(&sdata->vif) &&
2594 !rcu_access_pointer(sdata->bss->beacon))
2595 need_offchan = true;
2596 if (!ieee80211_is_action(mgmt->frame_control) ||
2597 mgmt->u.action.category == WLAN_CATEGORY_PUBLIC)
2598 break;
2599 rcu_read_lock();
2600 sta = sta_info_get(sdata, mgmt->da);
2601 rcu_read_unlock();
2602 if (!sta)
2603 return -ENOLINK;
2604 break;
2605 case NL80211_IFTYPE_STATION:
2606 case NL80211_IFTYPE_P2P_CLIENT:
2607 if (!sdata->u.mgd.associated)
2608 need_offchan = true;
2609 break;
2610 case NL80211_IFTYPE_P2P_DEVICE:
2611 need_offchan = true;
2612 break;
2613 default:
2614 return -EOPNOTSUPP;
2615 }
2616
2617 mutex_lock(&local->mtx);
2618
2619 /* Check if the operating channel is the requested channel */
2620 if (!need_offchan) {
2621 struct ieee80211_chanctx_conf *chanctx_conf;
2622
2623 rcu_read_lock();
2624 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
2625
2626 if (chanctx_conf)
2627 need_offchan = chan != chanctx_conf->def.chan;
2628 else
2629 need_offchan = true;
2630 rcu_read_unlock();
2631 }
2632
2633 if (need_offchan && !offchan) {
2634 ret = -EBUSY;
2635 goto out_unlock;
2636 }
2637
2638 skb = dev_alloc_skb(local->hw.extra_tx_headroom + len);
2639 if (!skb) {
2640 ret = -ENOMEM;
2641 goto out_unlock;
2642 }
2643 skb_reserve(skb, local->hw.extra_tx_headroom);
2644
2645 memcpy(skb_put(skb, len), buf, len);
2646
2647 IEEE80211_SKB_CB(skb)->flags = flags;
2648
2649 skb->dev = sdata->dev;
2650
2651 if (!need_offchan) {
2652 *cookie = (unsigned long) skb;
2653 ieee80211_tx_skb(sdata, skb);
2654 ret = 0;
2655 goto out_unlock;
2656 }
2657
2658 IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN;
2659 if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL)
2660 IEEE80211_SKB_CB(skb)->hw_queue =
2661 local->hw.offchannel_tx_hw_queue;
2662
2663 /* This will handle all kinds of coalescing and immediate TX */
2664 ret = ieee80211_start_roc_work(local, sdata, chan,
2665 wait, cookie, skb);
2666 if (ret)
2667 kfree_skb(skb);
2668 out_unlock:
2669 mutex_unlock(&local->mtx);
2670 return ret;
2671 }
2672
2673 static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy,
2674 struct wireless_dev *wdev,
2675 u64 cookie)
2676 {
2677 struct ieee80211_local *local = wiphy_priv(wiphy);
2678
2679 return ieee80211_cancel_roc(local, cookie, true);
2680 }
2681
2682 static void ieee80211_mgmt_frame_register(struct wiphy *wiphy,
2683 struct wireless_dev *wdev,
2684 u16 frame_type, bool reg)
2685 {
2686 struct ieee80211_local *local = wiphy_priv(wiphy);
2687 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
2688
2689 switch (frame_type) {
2690 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_AUTH:
2691 if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
2692 struct ieee80211_if_ibss *ifibss = &sdata->u.ibss;
2693
2694 if (reg)
2695 ifibss->auth_frame_registrations++;
2696 else
2697 ifibss->auth_frame_registrations--;
2698 }
2699 break;
2700 case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ:
2701 if (reg)
2702 local->probe_req_reg++;
2703 else
2704 local->probe_req_reg--;
2705
2706 if (!local->open_count)
2707 break;
2708
2709 ieee80211_queue_work(&local->hw, &local->reconfig_filter);
2710 break;
2711 default:
2712 break;
2713 }
2714 }
2715
2716 static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant)
2717 {
2718 struct ieee80211_local *local = wiphy_priv(wiphy);
2719
2720 if (local->started)
2721 return -EOPNOTSUPP;
2722
2723 return drv_set_antenna(local, tx_ant, rx_ant);
2724 }
2725
2726 static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant)
2727 {
2728 struct ieee80211_local *local = wiphy_priv(wiphy);
2729
2730 return drv_get_antenna(local, tx_ant, rx_ant);
2731 }
2732
2733 static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx)
2734 {
2735 struct ieee80211_local *local = wiphy_priv(wiphy);
2736
2737 return drv_set_ringparam(local, tx, rx);
2738 }
2739
2740 static void ieee80211_get_ringparam(struct wiphy *wiphy,
2741 u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max)
2742 {
2743 struct ieee80211_local *local = wiphy_priv(wiphy);
2744
2745 drv_get_ringparam(local, tx, tx_max, rx, rx_max);
2746 }
2747
2748 static int ieee80211_set_rekey_data(struct wiphy *wiphy,
2749 struct net_device *dev,
2750 struct cfg80211_gtk_rekey_data *data)
2751 {
2752 struct ieee80211_local *local = wiphy_priv(wiphy);
2753 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2754
2755 if (!local->ops->set_rekey_data)
2756 return -EOPNOTSUPP;
2757
2758 drv_set_rekey_data(local, sdata, data);
2759
2760 return 0;
2761 }
2762
2763 static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb)
2764 {
2765 u8 *pos = (void *)skb_put(skb, 7);
2766
2767 *pos++ = WLAN_EID_EXT_CAPABILITY;
2768 *pos++ = 5; /* len */
2769 *pos++ = 0x0;
2770 *pos++ = 0x0;
2771 *pos++ = 0x0;
2772 *pos++ = 0x0;
2773 *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED;
2774 }
2775
2776 static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata)
2777 {
2778 struct ieee80211_local *local = sdata->local;
2779 u16 capab;
2780
2781 capab = 0;
2782 if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ)
2783 return capab;
2784
2785 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE))
2786 capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
2787 if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE))
2788 capab |= WLAN_CAPABILITY_SHORT_PREAMBLE;
2789
2790 return capab;
2791 }
2792
2793 static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr,
2794 u8 *peer, u8 *bssid)
2795 {
2796 struct ieee80211_tdls_lnkie *lnkid;
2797
2798 lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
2799
2800 lnkid->ie_type = WLAN_EID_LINK_ID;
2801 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2;
2802
2803 memcpy(lnkid->bssid, bssid, ETH_ALEN);
2804 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
2805 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
2806 }
2807
2808 static int
2809 ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev,
2810 u8 *peer, u8 action_code, u8 dialog_token,
2811 u16 status_code, struct sk_buff *skb)
2812 {
2813 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2814 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2815 struct ieee80211_tdls_data *tf;
2816
2817 tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
2818
2819 memcpy(tf->da, peer, ETH_ALEN);
2820 memcpy(tf->sa, sdata->vif.addr, ETH_ALEN);
2821 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
2822 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
2823
2824 switch (action_code) {
2825 case WLAN_TDLS_SETUP_REQUEST:
2826 tf->category = WLAN_CATEGORY_TDLS;
2827 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
2828
2829 skb_put(skb, sizeof(tf->u.setup_req));
2830 tf->u.setup_req.dialog_token = dialog_token;
2831 tf->u.setup_req.capability =
2832 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2833
2834 ieee80211_add_srates_ie(sdata, skb, false, band);
2835 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2836 ieee80211_tdls_add_ext_capab(skb);
2837 break;
2838 case WLAN_TDLS_SETUP_RESPONSE:
2839 tf->category = WLAN_CATEGORY_TDLS;
2840 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
2841
2842 skb_put(skb, sizeof(tf->u.setup_resp));
2843 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
2844 tf->u.setup_resp.dialog_token = dialog_token;
2845 tf->u.setup_resp.capability =
2846 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2847
2848 ieee80211_add_srates_ie(sdata, skb, false, band);
2849 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2850 ieee80211_tdls_add_ext_capab(skb);
2851 break;
2852 case WLAN_TDLS_SETUP_CONFIRM:
2853 tf->category = WLAN_CATEGORY_TDLS;
2854 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
2855
2856 skb_put(skb, sizeof(tf->u.setup_cfm));
2857 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
2858 tf->u.setup_cfm.dialog_token = dialog_token;
2859 break;
2860 case WLAN_TDLS_TEARDOWN:
2861 tf->category = WLAN_CATEGORY_TDLS;
2862 tf->action_code = WLAN_TDLS_TEARDOWN;
2863
2864 skb_put(skb, sizeof(tf->u.teardown));
2865 tf->u.teardown.reason_code = cpu_to_le16(status_code);
2866 break;
2867 case WLAN_TDLS_DISCOVERY_REQUEST:
2868 tf->category = WLAN_CATEGORY_TDLS;
2869 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
2870
2871 skb_put(skb, sizeof(tf->u.discover_req));
2872 tf->u.discover_req.dialog_token = dialog_token;
2873 break;
2874 default:
2875 return -EINVAL;
2876 }
2877
2878 return 0;
2879 }
2880
2881 static int
2882 ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev,
2883 u8 *peer, u8 action_code, u8 dialog_token,
2884 u16 status_code, struct sk_buff *skb)
2885 {
2886 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2887 enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
2888 struct ieee80211_mgmt *mgmt;
2889
2890 mgmt = (void *)skb_put(skb, 24);
2891 memset(mgmt, 0, 24);
2892 memcpy(mgmt->da, peer, ETH_ALEN);
2893 memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
2894 memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
2895
2896 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
2897 IEEE80211_STYPE_ACTION);
2898
2899 switch (action_code) {
2900 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2901 skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp));
2902 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
2903 mgmt->u.action.u.tdls_discover_resp.action_code =
2904 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
2905 mgmt->u.action.u.tdls_discover_resp.dialog_token =
2906 dialog_token;
2907 mgmt->u.action.u.tdls_discover_resp.capability =
2908 cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata));
2909
2910 ieee80211_add_srates_ie(sdata, skb, false, band);
2911 ieee80211_add_ext_srates_ie(sdata, skb, false, band);
2912 ieee80211_tdls_add_ext_capab(skb);
2913 break;
2914 default:
2915 return -EINVAL;
2916 }
2917
2918 return 0;
2919 }
2920
2921 static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
2922 u8 *peer, u8 action_code, u8 dialog_token,
2923 u16 status_code, const u8 *extra_ies,
2924 size_t extra_ies_len)
2925 {
2926 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
2927 struct ieee80211_local *local = sdata->local;
2928 struct sk_buff *skb = NULL;
2929 bool send_direct;
2930 int ret;
2931
2932 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
2933 return -ENOTSUPP;
2934
2935 /* make sure we are in managed mode, and associated */
2936 if (sdata->vif.type != NL80211_IFTYPE_STATION ||
2937 !sdata->u.mgd.associated)
2938 return -EINVAL;
2939
2940 tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n",
2941 action_code, peer);
2942
2943 skb = dev_alloc_skb(local->hw.extra_tx_headroom +
2944 max(sizeof(struct ieee80211_mgmt),
2945 sizeof(struct ieee80211_tdls_data)) +
2946 50 + /* supported rates */
2947 7 + /* ext capab */
2948 extra_ies_len +
2949 sizeof(struct ieee80211_tdls_lnkie));
2950 if (!skb)
2951 return -ENOMEM;
2952
2953 skb_reserve(skb, local->hw.extra_tx_headroom);
2954
2955 switch (action_code) {
2956 case WLAN_TDLS_SETUP_REQUEST:
2957 case WLAN_TDLS_SETUP_RESPONSE:
2958 case WLAN_TDLS_SETUP_CONFIRM:
2959 case WLAN_TDLS_TEARDOWN:
2960 case WLAN_TDLS_DISCOVERY_REQUEST:
2961 ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer,
2962 action_code, dialog_token,
2963 status_code, skb);
2964 send_direct = false;
2965 break;
2966 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2967 ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code,
2968 dialog_token, status_code,
2969 skb);
2970 send_direct = true;
2971 break;
2972 default:
2973 ret = -ENOTSUPP;
2974 break;
2975 }
2976
2977 if (ret < 0)
2978 goto fail;
2979
2980 if (extra_ies_len)
2981 memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len);
2982
2983 /* the TDLS link IE is always added last */
2984 switch (action_code) {
2985 case WLAN_TDLS_SETUP_REQUEST:
2986 case WLAN_TDLS_SETUP_CONFIRM:
2987 case WLAN_TDLS_TEARDOWN:
2988 case WLAN_TDLS_DISCOVERY_REQUEST:
2989 /* we are the initiator */
2990 ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer,
2991 sdata->u.mgd.bssid);
2992 break;
2993 case WLAN_TDLS_SETUP_RESPONSE:
2994 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
2995 /* we are the responder */
2996 ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr,
2997 sdata->u.mgd.bssid);
2998 break;
2999 default:
3000 ret = -ENOTSUPP;
3001 goto fail;
3002 }
3003
3004 if (send_direct) {
3005 ieee80211_tx_skb(sdata, skb);
3006 return 0;
3007 }
3008
3009 /*
3010 * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise
3011 * we should default to AC_VI.
3012 */
3013 switch (action_code) {
3014 case WLAN_TDLS_SETUP_REQUEST:
3015 case WLAN_TDLS_SETUP_RESPONSE:
3016 skb_set_queue_mapping(skb, IEEE80211_AC_BK);
3017 skb->priority = 2;
3018 break;
3019 default:
3020 skb_set_queue_mapping(skb, IEEE80211_AC_VI);
3021 skb->priority = 5;
3022 break;
3023 }
3024
3025 /* disable bottom halves when entering the Tx path */
3026 local_bh_disable();
3027 ret = ieee80211_subif_start_xmit(skb, dev);
3028 local_bh_enable();
3029
3030 return ret;
3031
3032 fail:
3033 dev_kfree_skb(skb);
3034 return ret;
3035 }
3036
3037 static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
3038 u8 *peer, enum nl80211_tdls_operation oper)
3039 {
3040 struct sta_info *sta;
3041 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3042
3043 if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS))
3044 return -ENOTSUPP;
3045
3046 if (sdata->vif.type != NL80211_IFTYPE_STATION)
3047 return -EINVAL;
3048
3049 tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer);
3050
3051 switch (oper) {
3052 case NL80211_TDLS_ENABLE_LINK:
3053 rcu_read_lock();
3054 sta = sta_info_get(sdata, peer);
3055 if (!sta) {
3056 rcu_read_unlock();
3057 return -ENOLINK;
3058 }
3059
3060 set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
3061 rcu_read_unlock();
3062 break;
3063 case NL80211_TDLS_DISABLE_LINK:
3064 return sta_info_destroy_addr(sdata, peer);
3065 case NL80211_TDLS_TEARDOWN:
3066 case NL80211_TDLS_SETUP:
3067 case NL80211_TDLS_DISCOVERY_REQ:
3068 /* We don't support in-driver setup/teardown/discovery */
3069 return -ENOTSUPP;
3070 default:
3071 return -ENOTSUPP;
3072 }
3073
3074 return 0;
3075 }
3076
3077 static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev,
3078 const u8 *peer, u64 *cookie)
3079 {
3080 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
3081 struct ieee80211_local *local = sdata->local;
3082 struct ieee80211_qos_hdr *nullfunc;
3083 struct sk_buff *skb;
3084 int size = sizeof(*nullfunc);
3085 __le16 fc;
3086 bool qos;
3087 struct ieee80211_tx_info *info;
3088 struct sta_info *sta;
3089 struct ieee80211_chanctx_conf *chanctx_conf;
3090 enum ieee80211_band band;
3091
3092 rcu_read_lock();
3093 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3094 if (WARN_ON(!chanctx_conf)) {
3095 rcu_read_unlock();
3096 return -EINVAL;
3097 }
3098 band = chanctx_conf->def.chan->band;
3099 sta = sta_info_get(sdata, peer);
3100 if (sta) {
3101 qos = test_sta_flag(sta, WLAN_STA_WME);
3102 } else {
3103 rcu_read_unlock();
3104 return -ENOLINK;
3105 }
3106
3107 if (qos) {
3108 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3109 IEEE80211_STYPE_QOS_NULLFUNC |
3110 IEEE80211_FCTL_FROMDS);
3111 } else {
3112 size -= 2;
3113 fc = cpu_to_le16(IEEE80211_FTYPE_DATA |
3114 IEEE80211_STYPE_NULLFUNC |
3115 IEEE80211_FCTL_FROMDS);
3116 }
3117
3118 skb = dev_alloc_skb(local->hw.extra_tx_headroom + size);
3119 if (!skb) {
3120 rcu_read_unlock();
3121 return -ENOMEM;
3122 }
3123
3124 skb->dev = dev;
3125
3126 skb_reserve(skb, local->hw.extra_tx_headroom);
3127
3128 nullfunc = (void *) skb_put(skb, size);
3129 nullfunc->frame_control = fc;
3130 nullfunc->duration_id = 0;
3131 memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN);
3132 memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
3133 memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN);
3134 nullfunc->seq_ctrl = 0;
3135
3136 info = IEEE80211_SKB_CB(skb);
3137
3138 info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS |
3139 IEEE80211_TX_INTFL_NL80211_FRAME_TX;
3140
3141 skb_set_queue_mapping(skb, IEEE80211_AC_VO);
3142 skb->priority = 7;
3143 if (qos)
3144 nullfunc->qos_ctrl = cpu_to_le16(7);
3145
3146 local_bh_disable();
3147 ieee80211_xmit(sdata, skb, band);
3148 local_bh_enable();
3149 rcu_read_unlock();
3150
3151 *cookie = (unsigned long) skb;
3152 return 0;
3153 }
3154
3155 static int ieee80211_cfg_get_channel(struct wiphy *wiphy,
3156 struct wireless_dev *wdev,
3157 struct cfg80211_chan_def *chandef)
3158 {
3159 struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev);
3160 struct ieee80211_chanctx_conf *chanctx_conf;
3161 int ret = -ENODATA;
3162
3163 rcu_read_lock();
3164 chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf);
3165 if (chanctx_conf) {
3166 *chandef = chanctx_conf->def;
3167 ret = 0;
3168 }
3169 rcu_read_unlock();
3170
3171 return ret;
3172 }
3173
3174 #ifdef CONFIG_PM
3175 static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled)
3176 {
3177 drv_set_wakeup(wiphy_priv(wiphy), enabled);
3178 }
3179 #endif
3180
3181 struct cfg80211_ops mac80211_config_ops = {
3182 .add_virtual_intf = ieee80211_add_iface,
3183 .del_virtual_intf = ieee80211_del_iface,
3184 .change_virtual_intf = ieee80211_change_iface,
3185 .start_p2p_device = ieee80211_start_p2p_device,
3186 .stop_p2p_device = ieee80211_stop_p2p_device,
3187 .add_key = ieee80211_add_key,
3188 .del_key = ieee80211_del_key,
3189 .get_key = ieee80211_get_key,
3190 .set_default_key = ieee80211_config_default_key,
3191 .set_default_mgmt_key = ieee80211_config_default_mgmt_key,
3192 .start_ap = ieee80211_start_ap,
3193 .change_beacon = ieee80211_change_beacon,
3194 .stop_ap = ieee80211_stop_ap,
3195 .add_station = ieee80211_add_station,
3196 .del_station = ieee80211_del_station,
3197 .change_station = ieee80211_change_station,
3198 .get_station = ieee80211_get_station,
3199 .dump_station = ieee80211_dump_station,
3200 .dump_survey = ieee80211_dump_survey,
3201 #ifdef CONFIG_MAC80211_MESH
3202 .add_mpath = ieee80211_add_mpath,
3203 .del_mpath = ieee80211_del_mpath,
3204 .change_mpath = ieee80211_change_mpath,
3205 .get_mpath = ieee80211_get_mpath,
3206 .dump_mpath = ieee80211_dump_mpath,
3207 .update_mesh_config = ieee80211_update_mesh_config,
3208 .get_mesh_config = ieee80211_get_mesh_config,
3209 .join_mesh = ieee80211_join_mesh,
3210 .leave_mesh = ieee80211_leave_mesh,
3211 #endif
3212 .change_bss = ieee80211_change_bss,
3213 .set_txq_params = ieee80211_set_txq_params,
3214 .set_monitor_channel = ieee80211_set_monitor_channel,
3215 .suspend = ieee80211_suspend,
3216 .resume = ieee80211_resume,
3217 .scan = ieee80211_scan,
3218 .sched_scan_start = ieee80211_sched_scan_start,
3219 .sched_scan_stop = ieee80211_sched_scan_stop,
3220 .auth = ieee80211_auth,
3221 .assoc = ieee80211_assoc,
3222 .deauth = ieee80211_deauth,
3223 .disassoc = ieee80211_disassoc,
3224 .join_ibss = ieee80211_join_ibss,
3225 .leave_ibss = ieee80211_leave_ibss,
3226 .set_mcast_rate = ieee80211_set_mcast_rate,
3227 .set_wiphy_params = ieee80211_set_wiphy_params,
3228 .set_tx_power = ieee80211_set_tx_power,
3229 .get_tx_power = ieee80211_get_tx_power,
3230 .set_wds_peer = ieee80211_set_wds_peer,
3231 .rfkill_poll = ieee80211_rfkill_poll,
3232 CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd)
3233 CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump)
3234 .set_power_mgmt = ieee80211_set_power_mgmt,
3235 .set_bitrate_mask = ieee80211_set_bitrate_mask,
3236 .remain_on_channel = ieee80211_remain_on_channel,
3237 .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel,
3238 .mgmt_tx = ieee80211_mgmt_tx,
3239 .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait,
3240 .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config,
3241 .mgmt_frame_register = ieee80211_mgmt_frame_register,
3242 .set_antenna = ieee80211_set_antenna,
3243 .get_antenna = ieee80211_get_antenna,
3244 .set_ringparam = ieee80211_set_ringparam,
3245 .get_ringparam = ieee80211_get_ringparam,
3246 .set_rekey_data = ieee80211_set_rekey_data,
3247 .tdls_oper = ieee80211_tdls_oper,
3248 .tdls_mgmt = ieee80211_tdls_mgmt,
3249 .probe_client = ieee80211_probe_client,
3250 .set_noack_map = ieee80211_set_noack_map,
3251 #ifdef CONFIG_PM
3252 .set_wakeup = ieee80211_set_wakeup,
3253 #endif
3254 .get_et_sset_count = ieee80211_get_et_sset_count,
3255 .get_et_stats = ieee80211_get_et_stats,
3256 .get_et_strings = ieee80211_get_et_strings,
3257 .get_channel = ieee80211_cfg_get_channel,
3258 };
ubuntu-bionic-kernel mirror