Root/
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 | u32 mask = MONITOR_FLAG_COOK_FRAMES | |
77 | MONITOR_FLAG_ACTIVE; |
78 | |
79 | /* |
80 | * Prohibit MONITOR_FLAG_COOK_FRAMES and |
81 | * MONITOR_FLAG_ACTIVE to be changed while the |
82 | * interface is up. |
83 | * Else we would need to add a lot of cruft |
84 | * to update everything: |
85 | * cooked_mntrs, monitor and all fif_* counters |
86 | * reconfigure hardware |
87 | */ |
88 | if ((*flags & mask) != (sdata->u.mntr_flags & mask)) |
89 | return -EBUSY; |
90 | |
91 | ieee80211_adjust_monitor_flags(sdata, -1); |
92 | sdata->u.mntr_flags = *flags; |
93 | ieee80211_adjust_monitor_flags(sdata, 1); |
94 | |
95 | ieee80211_configure_filter(local); |
96 | } else { |
97 | /* |
98 | * Because the interface is down, ieee80211_do_stop |
99 | * and ieee80211_do_open take care of "everything" |
100 | * mentioned in the comment above. |
101 | */ |
102 | sdata->u.mntr_flags = *flags; |
103 | } |
104 | } |
105 | |
106 | return 0; |
107 | } |
108 | |
109 | static int ieee80211_start_p2p_device(struct wiphy *wiphy, |
110 | struct wireless_dev *wdev) |
111 | { |
112 | return ieee80211_do_open(wdev, true); |
113 | } |
114 | |
115 | static void ieee80211_stop_p2p_device(struct wiphy *wiphy, |
116 | struct wireless_dev *wdev) |
117 | { |
118 | ieee80211_sdata_stop(IEEE80211_WDEV_TO_SUB_IF(wdev)); |
119 | } |
120 | |
121 | static int ieee80211_set_noack_map(struct wiphy *wiphy, |
122 | struct net_device *dev, |
123 | u16 noack_map) |
124 | { |
125 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
126 | |
127 | sdata->noack_map = noack_map; |
128 | return 0; |
129 | } |
130 | |
131 | static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
132 | u8 key_idx, bool pairwise, const u8 *mac_addr, |
133 | struct key_params *params) |
134 | { |
135 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
136 | struct ieee80211_local *local = sdata->local; |
137 | struct sta_info *sta = NULL; |
138 | const struct ieee80211_cipher_scheme *cs = NULL; |
139 | struct ieee80211_key *key; |
140 | int err; |
141 | |
142 | if (!ieee80211_sdata_running(sdata)) |
143 | return -ENETDOWN; |
144 | |
145 | /* reject WEP and TKIP keys if WEP failed to initialize */ |
146 | switch (params->cipher) { |
147 | case WLAN_CIPHER_SUITE_WEP40: |
148 | case WLAN_CIPHER_SUITE_TKIP: |
149 | case WLAN_CIPHER_SUITE_WEP104: |
150 | if (IS_ERR(local->wep_tx_tfm)) |
151 | return -EINVAL; |
152 | break; |
153 | case WLAN_CIPHER_SUITE_CCMP: |
154 | case WLAN_CIPHER_SUITE_AES_CMAC: |
155 | case WLAN_CIPHER_SUITE_GCMP: |
156 | break; |
157 | default: |
158 | cs = ieee80211_cs_get(local, params->cipher, sdata->vif.type); |
159 | break; |
160 | } |
161 | |
162 | key = ieee80211_key_alloc(params->cipher, key_idx, params->key_len, |
163 | params->key, params->seq_len, params->seq, |
164 | cs); |
165 | if (IS_ERR(key)) |
166 | return PTR_ERR(key); |
167 | |
168 | if (pairwise) |
169 | key->conf.flags |= IEEE80211_KEY_FLAG_PAIRWISE; |
170 | |
171 | mutex_lock(&local->sta_mtx); |
172 | |
173 | if (mac_addr) { |
174 | if (ieee80211_vif_is_mesh(&sdata->vif)) |
175 | sta = sta_info_get(sdata, mac_addr); |
176 | else |
177 | sta = sta_info_get_bss(sdata, mac_addr); |
178 | /* |
179 | * The ASSOC test makes sure the driver is ready to |
180 | * receive the key. When wpa_supplicant has roamed |
181 | * using FT, it attempts to set the key before |
182 | * association has completed, this rejects that attempt |
183 | * so it will set the key again after assocation. |
184 | * |
185 | * TODO: accept the key if we have a station entry and |
186 | * add it to the device after the station. |
187 | */ |
188 | if (!sta || !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
189 | ieee80211_key_free_unused(key); |
190 | err = -ENOENT; |
191 | goto out_unlock; |
192 | } |
193 | } |
194 | |
195 | switch (sdata->vif.type) { |
196 | case NL80211_IFTYPE_STATION: |
197 | if (sdata->u.mgd.mfp != IEEE80211_MFP_DISABLED) |
198 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
199 | break; |
200 | case NL80211_IFTYPE_AP: |
201 | case NL80211_IFTYPE_AP_VLAN: |
202 | /* Keys without a station are used for TX only */ |
203 | if (key->sta && test_sta_flag(key->sta, WLAN_STA_MFP)) |
204 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
205 | break; |
206 | case NL80211_IFTYPE_ADHOC: |
207 | /* no MFP (yet) */ |
208 | break; |
209 | case NL80211_IFTYPE_MESH_POINT: |
210 | #ifdef CONFIG_MAC80211_MESH |
211 | if (sdata->u.mesh.security != IEEE80211_MESH_SEC_NONE) |
212 | key->conf.flags |= IEEE80211_KEY_FLAG_RX_MGMT; |
213 | break; |
214 | #endif |
215 | case NL80211_IFTYPE_WDS: |
216 | case NL80211_IFTYPE_MONITOR: |
217 | case NL80211_IFTYPE_P2P_DEVICE: |
218 | case NL80211_IFTYPE_UNSPECIFIED: |
219 | case NUM_NL80211_IFTYPES: |
220 | case NL80211_IFTYPE_P2P_CLIENT: |
221 | case NL80211_IFTYPE_P2P_GO: |
222 | /* shouldn't happen */ |
223 | WARN_ON_ONCE(1); |
224 | break; |
225 | } |
226 | |
227 | if (sta) |
228 | sta->cipher_scheme = cs; |
229 | |
230 | err = ieee80211_key_link(key, sdata, sta); |
231 | |
232 | out_unlock: |
233 | mutex_unlock(&local->sta_mtx); |
234 | |
235 | return err; |
236 | } |
237 | |
238 | static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, |
239 | u8 key_idx, bool pairwise, const u8 *mac_addr) |
240 | { |
241 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
242 | struct ieee80211_local *local = sdata->local; |
243 | struct sta_info *sta; |
244 | struct ieee80211_key *key = NULL; |
245 | int ret; |
246 | |
247 | mutex_lock(&local->sta_mtx); |
248 | mutex_lock(&local->key_mtx); |
249 | |
250 | if (mac_addr) { |
251 | ret = -ENOENT; |
252 | |
253 | sta = sta_info_get_bss(sdata, mac_addr); |
254 | if (!sta) |
255 | goto out_unlock; |
256 | |
257 | if (pairwise) |
258 | key = key_mtx_dereference(local, sta->ptk[key_idx]); |
259 | else |
260 | key = key_mtx_dereference(local, sta->gtk[key_idx]); |
261 | } else |
262 | key = key_mtx_dereference(local, sdata->keys[key_idx]); |
263 | |
264 | if (!key) { |
265 | ret = -ENOENT; |
266 | goto out_unlock; |
267 | } |
268 | |
269 | ieee80211_key_free(key, true); |
270 | |
271 | ret = 0; |
272 | out_unlock: |
273 | mutex_unlock(&local->key_mtx); |
274 | mutex_unlock(&local->sta_mtx); |
275 | |
276 | return ret; |
277 | } |
278 | |
279 | static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
280 | u8 key_idx, bool pairwise, const u8 *mac_addr, |
281 | void *cookie, |
282 | void (*callback)(void *cookie, |
283 | struct key_params *params)) |
284 | { |
285 | struct ieee80211_sub_if_data *sdata; |
286 | struct sta_info *sta = NULL; |
287 | u8 seq[6] = {0}; |
288 | struct key_params params; |
289 | struct ieee80211_key *key = NULL; |
290 | u64 pn64; |
291 | u32 iv32; |
292 | u16 iv16; |
293 | int err = -ENOENT; |
294 | |
295 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
296 | |
297 | rcu_read_lock(); |
298 | |
299 | if (mac_addr) { |
300 | sta = sta_info_get_bss(sdata, mac_addr); |
301 | if (!sta) |
302 | goto out; |
303 | |
304 | if (pairwise && key_idx < NUM_DEFAULT_KEYS) |
305 | key = rcu_dereference(sta->ptk[key_idx]); |
306 | else if (!pairwise && |
307 | key_idx < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) |
308 | key = rcu_dereference(sta->gtk[key_idx]); |
309 | } else |
310 | key = rcu_dereference(sdata->keys[key_idx]); |
311 | |
312 | if (!key) |
313 | goto out; |
314 | |
315 | memset(¶ms, 0, sizeof(params)); |
316 | |
317 | params.cipher = key->conf.cipher; |
318 | |
319 | switch (key->conf.cipher) { |
320 | case WLAN_CIPHER_SUITE_TKIP: |
321 | iv32 = key->u.tkip.tx.iv32; |
322 | iv16 = key->u.tkip.tx.iv16; |
323 | |
324 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) |
325 | drv_get_tkip_seq(sdata->local, |
326 | key->conf.hw_key_idx, |
327 | &iv32, &iv16); |
328 | |
329 | seq[0] = iv16 & 0xff; |
330 | seq[1] = (iv16 >> 8) & 0xff; |
331 | seq[2] = iv32 & 0xff; |
332 | seq[3] = (iv32 >> 8) & 0xff; |
333 | seq[4] = (iv32 >> 16) & 0xff; |
334 | seq[5] = (iv32 >> 24) & 0xff; |
335 | params.seq = seq; |
336 | params.seq_len = 6; |
337 | break; |
338 | case WLAN_CIPHER_SUITE_CCMP: |
339 | pn64 = atomic64_read(&key->u.ccmp.tx_pn); |
340 | seq[0] = pn64; |
341 | seq[1] = pn64 >> 8; |
342 | seq[2] = pn64 >> 16; |
343 | seq[3] = pn64 >> 24; |
344 | seq[4] = pn64 >> 32; |
345 | seq[5] = pn64 >> 40; |
346 | params.seq = seq; |
347 | params.seq_len = 6; |
348 | break; |
349 | case WLAN_CIPHER_SUITE_AES_CMAC: |
350 | pn64 = atomic64_read(&key->u.aes_cmac.tx_pn); |
351 | seq[0] = pn64; |
352 | seq[1] = pn64 >> 8; |
353 | seq[2] = pn64 >> 16; |
354 | seq[3] = pn64 >> 24; |
355 | seq[4] = pn64 >> 32; |
356 | seq[5] = pn64 >> 40; |
357 | params.seq = seq; |
358 | params.seq_len = 6; |
359 | break; |
360 | } |
361 | |
362 | params.key = key->conf.key; |
363 | params.key_len = key->conf.keylen; |
364 | |
365 | callback(cookie, ¶ms); |
366 | err = 0; |
367 | |
368 | out: |
369 | rcu_read_unlock(); |
370 | return err; |
371 | } |
372 | |
373 | static int ieee80211_config_default_key(struct wiphy *wiphy, |
374 | struct net_device *dev, |
375 | u8 key_idx, bool uni, |
376 | bool multi) |
377 | { |
378 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
379 | |
380 | ieee80211_set_default_key(sdata, key_idx, uni, multi); |
381 | |
382 | return 0; |
383 | } |
384 | |
385 | static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, |
386 | struct net_device *dev, |
387 | u8 key_idx) |
388 | { |
389 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
390 | |
391 | ieee80211_set_default_mgmt_key(sdata, key_idx); |
392 | |
393 | return 0; |
394 | } |
395 | |
396 | void sta_set_rate_info_tx(struct sta_info *sta, |
397 | const struct ieee80211_tx_rate *rate, |
398 | struct rate_info *rinfo) |
399 | { |
400 | rinfo->flags = 0; |
401 | if (rate->flags & IEEE80211_TX_RC_MCS) { |
402 | rinfo->flags |= RATE_INFO_FLAGS_MCS; |
403 | rinfo->mcs = rate->idx; |
404 | } else if (rate->flags & IEEE80211_TX_RC_VHT_MCS) { |
405 | rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
406 | rinfo->mcs = ieee80211_rate_get_vht_mcs(rate); |
407 | rinfo->nss = ieee80211_rate_get_vht_nss(rate); |
408 | } else { |
409 | struct ieee80211_supported_band *sband; |
410 | int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
411 | u16 brate; |
412 | |
413 | sband = sta->local->hw.wiphy->bands[ |
414 | ieee80211_get_sdata_band(sta->sdata)]; |
415 | brate = sband->bitrates[rate->idx].bitrate; |
416 | rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
417 | } |
418 | if (rate->flags & IEEE80211_TX_RC_40_MHZ_WIDTH) |
419 | rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
420 | if (rate->flags & IEEE80211_TX_RC_80_MHZ_WIDTH) |
421 | rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
422 | if (rate->flags & IEEE80211_TX_RC_160_MHZ_WIDTH) |
423 | rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
424 | if (rate->flags & IEEE80211_TX_RC_SHORT_GI) |
425 | rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
426 | } |
427 | |
428 | void sta_set_rate_info_rx(struct sta_info *sta, struct rate_info *rinfo) |
429 | { |
430 | rinfo->flags = 0; |
431 | |
432 | if (sta->last_rx_rate_flag & RX_FLAG_HT) { |
433 | rinfo->flags |= RATE_INFO_FLAGS_MCS; |
434 | rinfo->mcs = sta->last_rx_rate_idx; |
435 | } else if (sta->last_rx_rate_flag & RX_FLAG_VHT) { |
436 | rinfo->flags |= RATE_INFO_FLAGS_VHT_MCS; |
437 | rinfo->nss = sta->last_rx_rate_vht_nss; |
438 | rinfo->mcs = sta->last_rx_rate_idx; |
439 | } else { |
440 | struct ieee80211_supported_band *sband; |
441 | int shift = ieee80211_vif_get_shift(&sta->sdata->vif); |
442 | u16 brate; |
443 | |
444 | sband = sta->local->hw.wiphy->bands[ |
445 | ieee80211_get_sdata_band(sta->sdata)]; |
446 | brate = sband->bitrates[sta->last_rx_rate_idx].bitrate; |
447 | rinfo->legacy = DIV_ROUND_UP(brate, 1 << shift); |
448 | } |
449 | |
450 | if (sta->last_rx_rate_flag & RX_FLAG_40MHZ) |
451 | rinfo->flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; |
452 | if (sta->last_rx_rate_flag & RX_FLAG_SHORT_GI) |
453 | rinfo->flags |= RATE_INFO_FLAGS_SHORT_GI; |
454 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80MHZ) |
455 | rinfo->flags |= RATE_INFO_FLAGS_80_MHZ_WIDTH; |
456 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_80P80MHZ) |
457 | rinfo->flags |= RATE_INFO_FLAGS_80P80_MHZ_WIDTH; |
458 | if (sta->last_rx_rate_vht_flag & RX_VHT_FLAG_160MHZ) |
459 | rinfo->flags |= RATE_INFO_FLAGS_160_MHZ_WIDTH; |
460 | } |
461 | |
462 | static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) |
463 | { |
464 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
465 | struct ieee80211_local *local = sdata->local; |
466 | struct timespec uptime; |
467 | u64 packets = 0; |
468 | int i, ac; |
469 | |
470 | sinfo->generation = sdata->local->sta_generation; |
471 | |
472 | sinfo->filled = STATION_INFO_INACTIVE_TIME | |
473 | STATION_INFO_RX_BYTES64 | |
474 | STATION_INFO_TX_BYTES64 | |
475 | STATION_INFO_RX_PACKETS | |
476 | STATION_INFO_TX_PACKETS | |
477 | STATION_INFO_TX_RETRIES | |
478 | STATION_INFO_TX_FAILED | |
479 | STATION_INFO_TX_BITRATE | |
480 | STATION_INFO_RX_BITRATE | |
481 | STATION_INFO_RX_DROP_MISC | |
482 | STATION_INFO_BSS_PARAM | |
483 | STATION_INFO_CONNECTED_TIME | |
484 | STATION_INFO_STA_FLAGS | |
485 | STATION_INFO_BEACON_LOSS_COUNT; |
486 | |
487 | do_posix_clock_monotonic_gettime(&uptime); |
488 | sinfo->connected_time = uptime.tv_sec - sta->last_connected; |
489 | |
490 | sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); |
491 | sinfo->tx_bytes = 0; |
492 | for (ac = 0; ac < IEEE80211_NUM_ACS; ac++) { |
493 | sinfo->tx_bytes += sta->tx_bytes[ac]; |
494 | packets += sta->tx_packets[ac]; |
495 | } |
496 | sinfo->tx_packets = packets; |
497 | sinfo->rx_bytes = sta->rx_bytes; |
498 | sinfo->rx_packets = sta->rx_packets; |
499 | sinfo->tx_retries = sta->tx_retry_count; |
500 | sinfo->tx_failed = sta->tx_retry_failed; |
501 | sinfo->rx_dropped_misc = sta->rx_dropped; |
502 | sinfo->beacon_loss_count = sta->beacon_loss_count; |
503 | |
504 | if ((sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) || |
505 | (sta->local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC)) { |
506 | sinfo->filled |= STATION_INFO_SIGNAL | STATION_INFO_SIGNAL_AVG; |
507 | if (!local->ops->get_rssi || |
508 | drv_get_rssi(local, sdata, &sta->sta, &sinfo->signal)) |
509 | sinfo->signal = (s8)sta->last_signal; |
510 | sinfo->signal_avg = (s8) -ewma_read(&sta->avg_signal); |
511 | } |
512 | if (sta->chains) { |
513 | sinfo->filled |= STATION_INFO_CHAIN_SIGNAL | |
514 | STATION_INFO_CHAIN_SIGNAL_AVG; |
515 | |
516 | sinfo->chains = sta->chains; |
517 | for (i = 0; i < ARRAY_SIZE(sinfo->chain_signal); i++) { |
518 | sinfo->chain_signal[i] = sta->chain_signal_last[i]; |
519 | sinfo->chain_signal_avg[i] = |
520 | (s8) -ewma_read(&sta->chain_signal_avg[i]); |
521 | } |
522 | } |
523 | |
524 | sta_set_rate_info_tx(sta, &sta->last_tx_rate, &sinfo->txrate); |
525 | sta_set_rate_info_rx(sta, &sinfo->rxrate); |
526 | |
527 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
528 | #ifdef CONFIG_MAC80211_MESH |
529 | sinfo->filled |= STATION_INFO_LLID | |
530 | STATION_INFO_PLID | |
531 | STATION_INFO_PLINK_STATE | |
532 | STATION_INFO_LOCAL_PM | |
533 | STATION_INFO_PEER_PM | |
534 | STATION_INFO_NONPEER_PM; |
535 | |
536 | sinfo->llid = sta->llid; |
537 | sinfo->plid = sta->plid; |
538 | sinfo->plink_state = sta->plink_state; |
539 | if (test_sta_flag(sta, WLAN_STA_TOFFSET_KNOWN)) { |
540 | sinfo->filled |= STATION_INFO_T_OFFSET; |
541 | sinfo->t_offset = sta->t_offset; |
542 | } |
543 | sinfo->local_pm = sta->local_pm; |
544 | sinfo->peer_pm = sta->peer_pm; |
545 | sinfo->nonpeer_pm = sta->nonpeer_pm; |
546 | #endif |
547 | } |
548 | |
549 | sinfo->bss_param.flags = 0; |
550 | if (sdata->vif.bss_conf.use_cts_prot) |
551 | sinfo->bss_param.flags |= BSS_PARAM_FLAGS_CTS_PROT; |
552 | if (sdata->vif.bss_conf.use_short_preamble) |
553 | sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_PREAMBLE; |
554 | if (sdata->vif.bss_conf.use_short_slot) |
555 | sinfo->bss_param.flags |= BSS_PARAM_FLAGS_SHORT_SLOT_TIME; |
556 | sinfo->bss_param.dtim_period = sdata->local->hw.conf.ps_dtim_period; |
557 | sinfo->bss_param.beacon_interval = sdata->vif.bss_conf.beacon_int; |
558 | |
559 | sinfo->sta_flags.set = 0; |
560 | sinfo->sta_flags.mask = BIT(NL80211_STA_FLAG_AUTHORIZED) | |
561 | BIT(NL80211_STA_FLAG_SHORT_PREAMBLE) | |
562 | BIT(NL80211_STA_FLAG_WME) | |
563 | BIT(NL80211_STA_FLAG_MFP) | |
564 | BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
565 | BIT(NL80211_STA_FLAG_ASSOCIATED) | |
566 | BIT(NL80211_STA_FLAG_TDLS_PEER); |
567 | if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
568 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHORIZED); |
569 | if (test_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE)) |
570 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_SHORT_PREAMBLE); |
571 | if (test_sta_flag(sta, WLAN_STA_WME)) |
572 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_WME); |
573 | if (test_sta_flag(sta, WLAN_STA_MFP)) |
574 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_MFP); |
575 | if (test_sta_flag(sta, WLAN_STA_AUTH)) |
576 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_AUTHENTICATED); |
577 | if (test_sta_flag(sta, WLAN_STA_ASSOC)) |
578 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
579 | if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) |
580 | sinfo->sta_flags.set |= BIT(NL80211_STA_FLAG_TDLS_PEER); |
581 | } |
582 | |
583 | static const char ieee80211_gstrings_sta_stats[][ETH_GSTRING_LEN] = { |
584 | "rx_packets", "rx_bytes", "wep_weak_iv_count", |
585 | "rx_duplicates", "rx_fragments", "rx_dropped", |
586 | "tx_packets", "tx_bytes", "tx_fragments", |
587 | "tx_filtered", "tx_retry_failed", "tx_retries", |
588 | "beacon_loss", "sta_state", "txrate", "rxrate", "signal", |
589 | "channel", "noise", "ch_time", "ch_time_busy", |
590 | "ch_time_ext_busy", "ch_time_rx", "ch_time_tx" |
591 | }; |
592 | #define STA_STATS_LEN ARRAY_SIZE(ieee80211_gstrings_sta_stats) |
593 | |
594 | static int ieee80211_get_et_sset_count(struct wiphy *wiphy, |
595 | struct net_device *dev, |
596 | int sset) |
597 | { |
598 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
599 | int rv = 0; |
600 | |
601 | if (sset == ETH_SS_STATS) |
602 | rv += STA_STATS_LEN; |
603 | |
604 | rv += drv_get_et_sset_count(sdata, sset); |
605 | |
606 | if (rv == 0) |
607 | return -EOPNOTSUPP; |
608 | return rv; |
609 | } |
610 | |
611 | static void ieee80211_get_et_stats(struct wiphy *wiphy, |
612 | struct net_device *dev, |
613 | struct ethtool_stats *stats, |
614 | u64 *data) |
615 | { |
616 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
617 | struct ieee80211_chanctx_conf *chanctx_conf; |
618 | struct ieee80211_channel *channel; |
619 | struct sta_info *sta; |
620 | struct ieee80211_local *local = sdata->local; |
621 | struct station_info sinfo; |
622 | struct survey_info survey; |
623 | int i, q; |
624 | #define STA_STATS_SURVEY_LEN 7 |
625 | |
626 | memset(data, 0, sizeof(u64) * STA_STATS_LEN); |
627 | |
628 | #define ADD_STA_STATS(sta) \ |
629 | do { \ |
630 | data[i++] += sta->rx_packets; \ |
631 | data[i++] += sta->rx_bytes; \ |
632 | data[i++] += sta->wep_weak_iv_count; \ |
633 | data[i++] += sta->num_duplicates; \ |
634 | data[i++] += sta->rx_fragments; \ |
635 | data[i++] += sta->rx_dropped; \ |
636 | \ |
637 | data[i++] += sinfo.tx_packets; \ |
638 | data[i++] += sinfo.tx_bytes; \ |
639 | data[i++] += sta->tx_fragments; \ |
640 | data[i++] += sta->tx_filtered_count; \ |
641 | data[i++] += sta->tx_retry_failed; \ |
642 | data[i++] += sta->tx_retry_count; \ |
643 | data[i++] += sta->beacon_loss_count; \ |
644 | } while (0) |
645 | |
646 | /* For Managed stations, find the single station based on BSSID |
647 | * and use that. For interface types, iterate through all available |
648 | * stations and add stats for any station that is assigned to this |
649 | * network device. |
650 | */ |
651 | |
652 | mutex_lock(&local->sta_mtx); |
653 | |
654 | if (sdata->vif.type == NL80211_IFTYPE_STATION) { |
655 | sta = sta_info_get_bss(sdata, sdata->u.mgd.bssid); |
656 | |
657 | if (!(sta && !WARN_ON(sta->sdata->dev != dev))) |
658 | goto do_survey; |
659 | |
660 | sinfo.filled = 0; |
661 | sta_set_sinfo(sta, &sinfo); |
662 | |
663 | i = 0; |
664 | ADD_STA_STATS(sta); |
665 | |
666 | data[i++] = sta->sta_state; |
667 | |
668 | |
669 | if (sinfo.filled & STATION_INFO_TX_BITRATE) |
670 | data[i] = 100000 * |
671 | cfg80211_calculate_bitrate(&sinfo.txrate); |
672 | i++; |
673 | if (sinfo.filled & STATION_INFO_RX_BITRATE) |
674 | data[i] = 100000 * |
675 | cfg80211_calculate_bitrate(&sinfo.rxrate); |
676 | i++; |
677 | |
678 | if (sinfo.filled & STATION_INFO_SIGNAL_AVG) |
679 | data[i] = (u8)sinfo.signal_avg; |
680 | i++; |
681 | } else { |
682 | list_for_each_entry(sta, &local->sta_list, list) { |
683 | /* Make sure this station belongs to the proper dev */ |
684 | if (sta->sdata->dev != dev) |
685 | continue; |
686 | |
687 | sinfo.filled = 0; |
688 | sta_set_sinfo(sta, &sinfo); |
689 | i = 0; |
690 | ADD_STA_STATS(sta); |
691 | } |
692 | } |
693 | |
694 | do_survey: |
695 | i = STA_STATS_LEN - STA_STATS_SURVEY_LEN; |
696 | /* Get survey stats for current channel */ |
697 | survey.filled = 0; |
698 | |
699 | rcu_read_lock(); |
700 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
701 | if (chanctx_conf) |
702 | channel = chanctx_conf->def.chan; |
703 | else |
704 | channel = NULL; |
705 | rcu_read_unlock(); |
706 | |
707 | if (channel) { |
708 | q = 0; |
709 | do { |
710 | survey.filled = 0; |
711 | if (drv_get_survey(local, q, &survey) != 0) { |
712 | survey.filled = 0; |
713 | break; |
714 | } |
715 | q++; |
716 | } while (channel != survey.channel); |
717 | } |
718 | |
719 | if (survey.filled) |
720 | data[i++] = survey.channel->center_freq; |
721 | else |
722 | data[i++] = 0; |
723 | if (survey.filled & SURVEY_INFO_NOISE_DBM) |
724 | data[i++] = (u8)survey.noise; |
725 | else |
726 | data[i++] = -1LL; |
727 | if (survey.filled & SURVEY_INFO_CHANNEL_TIME) |
728 | data[i++] = survey.channel_time; |
729 | else |
730 | data[i++] = -1LL; |
731 | if (survey.filled & SURVEY_INFO_CHANNEL_TIME_BUSY) |
732 | data[i++] = survey.channel_time_busy; |
733 | else |
734 | data[i++] = -1LL; |
735 | if (survey.filled & SURVEY_INFO_CHANNEL_TIME_EXT_BUSY) |
736 | data[i++] = survey.channel_time_ext_busy; |
737 | else |
738 | data[i++] = -1LL; |
739 | if (survey.filled & SURVEY_INFO_CHANNEL_TIME_RX) |
740 | data[i++] = survey.channel_time_rx; |
741 | else |
742 | data[i++] = -1LL; |
743 | if (survey.filled & SURVEY_INFO_CHANNEL_TIME_TX) |
744 | data[i++] = survey.channel_time_tx; |
745 | else |
746 | data[i++] = -1LL; |
747 | |
748 | mutex_unlock(&local->sta_mtx); |
749 | |
750 | if (WARN_ON(i != STA_STATS_LEN)) |
751 | return; |
752 | |
753 | drv_get_et_stats(sdata, stats, &(data[STA_STATS_LEN])); |
754 | } |
755 | |
756 | static void ieee80211_get_et_strings(struct wiphy *wiphy, |
757 | struct net_device *dev, |
758 | u32 sset, u8 *data) |
759 | { |
760 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
761 | int sz_sta_stats = 0; |
762 | |
763 | if (sset == ETH_SS_STATS) { |
764 | sz_sta_stats = sizeof(ieee80211_gstrings_sta_stats); |
765 | memcpy(data, ieee80211_gstrings_sta_stats, sz_sta_stats); |
766 | } |
767 | drv_get_et_strings(sdata, sset, &(data[sz_sta_stats])); |
768 | } |
769 | |
770 | static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, |
771 | int idx, u8 *mac, struct station_info *sinfo) |
772 | { |
773 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
774 | struct ieee80211_local *local = sdata->local; |
775 | struct sta_info *sta; |
776 | int ret = -ENOENT; |
777 | |
778 | mutex_lock(&local->sta_mtx); |
779 | |
780 | sta = sta_info_get_by_idx(sdata, idx); |
781 | if (sta) { |
782 | ret = 0; |
783 | memcpy(mac, sta->sta.addr, ETH_ALEN); |
784 | sta_set_sinfo(sta, sinfo); |
785 | } |
786 | |
787 | mutex_unlock(&local->sta_mtx); |
788 | |
789 | return ret; |
790 | } |
791 | |
792 | static int ieee80211_dump_survey(struct wiphy *wiphy, struct net_device *dev, |
793 | int idx, struct survey_info *survey) |
794 | { |
795 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
796 | |
797 | return drv_get_survey(local, idx, survey); |
798 | } |
799 | |
800 | static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
801 | u8 *mac, struct station_info *sinfo) |
802 | { |
803 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
804 | struct ieee80211_local *local = sdata->local; |
805 | struct sta_info *sta; |
806 | int ret = -ENOENT; |
807 | |
808 | mutex_lock(&local->sta_mtx); |
809 | |
810 | sta = sta_info_get_bss(sdata, mac); |
811 | if (sta) { |
812 | ret = 0; |
813 | sta_set_sinfo(sta, sinfo); |
814 | } |
815 | |
816 | mutex_unlock(&local->sta_mtx); |
817 | |
818 | return ret; |
819 | } |
820 | |
821 | static int ieee80211_set_monitor_channel(struct wiphy *wiphy, |
822 | struct cfg80211_chan_def *chandef) |
823 | { |
824 | struct ieee80211_local *local = wiphy_priv(wiphy); |
825 | struct ieee80211_sub_if_data *sdata; |
826 | int ret = 0; |
827 | |
828 | if (cfg80211_chandef_identical(&local->monitor_chandef, chandef)) |
829 | return 0; |
830 | |
831 | mutex_lock(&local->mtx); |
832 | mutex_lock(&local->iflist_mtx); |
833 | if (local->use_chanctx) { |
834 | sdata = rcu_dereference_protected( |
835 | local->monitor_sdata, |
836 | lockdep_is_held(&local->iflist_mtx)); |
837 | if (sdata) { |
838 | ieee80211_vif_release_channel(sdata); |
839 | ret = ieee80211_vif_use_channel(sdata, chandef, |
840 | IEEE80211_CHANCTX_EXCLUSIVE); |
841 | } |
842 | } else if (local->open_count == local->monitors) { |
843 | local->_oper_chandef = *chandef; |
844 | ieee80211_hw_config(local, 0); |
845 | } |
846 | |
847 | if (ret == 0) |
848 | local->monitor_chandef = *chandef; |
849 | mutex_unlock(&local->iflist_mtx); |
850 | mutex_unlock(&local->mtx); |
851 | |
852 | return ret; |
853 | } |
854 | |
855 | static int ieee80211_set_probe_resp(struct ieee80211_sub_if_data *sdata, |
856 | const u8 *resp, size_t resp_len) |
857 | { |
858 | struct probe_resp *new, *old; |
859 | |
860 | if (!resp || !resp_len) |
861 | return 1; |
862 | |
863 | old = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
864 | |
865 | new = kzalloc(sizeof(struct probe_resp) + resp_len, GFP_KERNEL); |
866 | if (!new) |
867 | return -ENOMEM; |
868 | |
869 | new->len = resp_len; |
870 | memcpy(new->data, resp, resp_len); |
871 | |
872 | rcu_assign_pointer(sdata->u.ap.probe_resp, new); |
873 | if (old) |
874 | kfree_rcu(old, rcu_head); |
875 | |
876 | return 0; |
877 | } |
878 | |
879 | static int ieee80211_assign_beacon(struct ieee80211_sub_if_data *sdata, |
880 | struct cfg80211_beacon_data *params) |
881 | { |
882 | struct beacon_data *new, *old; |
883 | int new_head_len, new_tail_len; |
884 | int size, err; |
885 | u32 changed = BSS_CHANGED_BEACON; |
886 | |
887 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
888 | |
889 | |
890 | /* Need to have a beacon head if we don't have one yet */ |
891 | if (!params->head && !old) |
892 | return -EINVAL; |
893 | |
894 | /* new or old head? */ |
895 | if (params->head) |
896 | new_head_len = params->head_len; |
897 | else |
898 | new_head_len = old->head_len; |
899 | |
900 | /* new or old tail? */ |
901 | if (params->tail || !old) |
902 | /* params->tail_len will be zero for !params->tail */ |
903 | new_tail_len = params->tail_len; |
904 | else |
905 | new_tail_len = old->tail_len; |
906 | |
907 | size = sizeof(*new) + new_head_len + new_tail_len; |
908 | |
909 | new = kzalloc(size, GFP_KERNEL); |
910 | if (!new) |
911 | return -ENOMEM; |
912 | |
913 | /* start filling the new info now */ |
914 | |
915 | /* |
916 | * pointers go into the block we allocated, |
917 | * memory is | beacon_data | head | tail | |
918 | */ |
919 | new->head = ((u8 *) new) + sizeof(*new); |
920 | new->tail = new->head + new_head_len; |
921 | new->head_len = new_head_len; |
922 | new->tail_len = new_tail_len; |
923 | |
924 | /* copy in head */ |
925 | if (params->head) |
926 | memcpy(new->head, params->head, new_head_len); |
927 | else |
928 | memcpy(new->head, old->head, new_head_len); |
929 | |
930 | /* copy in optional tail */ |
931 | if (params->tail) |
932 | memcpy(new->tail, params->tail, new_tail_len); |
933 | else |
934 | if (old) |
935 | memcpy(new->tail, old->tail, new_tail_len); |
936 | |
937 | err = ieee80211_set_probe_resp(sdata, params->probe_resp, |
938 | params->probe_resp_len); |
939 | if (err < 0) |
940 | return err; |
941 | if (err == 0) |
942 | changed |= BSS_CHANGED_AP_PROBE_RESP; |
943 | |
944 | rcu_assign_pointer(sdata->u.ap.beacon, new); |
945 | |
946 | if (old) |
947 | kfree_rcu(old, rcu_head); |
948 | |
949 | return changed; |
950 | } |
951 | |
952 | static int ieee80211_start_ap(struct wiphy *wiphy, struct net_device *dev, |
953 | struct cfg80211_ap_settings *params) |
954 | { |
955 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
956 | struct ieee80211_local *local = sdata->local; |
957 | struct beacon_data *old; |
958 | struct ieee80211_sub_if_data *vlan; |
959 | u32 changed = BSS_CHANGED_BEACON_INT | |
960 | BSS_CHANGED_BEACON_ENABLED | |
961 | BSS_CHANGED_BEACON | |
962 | BSS_CHANGED_SSID | |
963 | BSS_CHANGED_P2P_PS; |
964 | int err; |
965 | |
966 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
967 | if (old) |
968 | return -EALREADY; |
969 | |
970 | /* TODO: make hostapd tell us what it wants */ |
971 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
972 | sdata->needed_rx_chains = sdata->local->rx_chains; |
973 | |
974 | mutex_lock(&local->mtx); |
975 | sdata->radar_required = params->radar_required; |
976 | err = ieee80211_vif_use_channel(sdata, ¶ms->chandef, |
977 | IEEE80211_CHANCTX_SHARED); |
978 | mutex_unlock(&local->mtx); |
979 | if (err) |
980 | return err; |
981 | ieee80211_vif_copy_chanctx_to_vlans(sdata, false); |
982 | |
983 | /* |
984 | * Apply control port protocol, this allows us to |
985 | * not encrypt dynamic WEP control frames. |
986 | */ |
987 | sdata->control_port_protocol = params->crypto.control_port_ethertype; |
988 | sdata->control_port_no_encrypt = params->crypto.control_port_no_encrypt; |
989 | sdata->encrypt_headroom = ieee80211_cs_headroom(sdata->local, |
990 | ¶ms->crypto, |
991 | sdata->vif.type); |
992 | |
993 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) { |
994 | vlan->control_port_protocol = |
995 | params->crypto.control_port_ethertype; |
996 | vlan->control_port_no_encrypt = |
997 | params->crypto.control_port_no_encrypt; |
998 | vlan->encrypt_headroom = |
999 | ieee80211_cs_headroom(sdata->local, |
1000 | ¶ms->crypto, |
1001 | vlan->vif.type); |
1002 | } |
1003 | |
1004 | sdata->vif.bss_conf.beacon_int = params->beacon_interval; |
1005 | sdata->vif.bss_conf.dtim_period = params->dtim_period; |
1006 | sdata->vif.bss_conf.enable_beacon = true; |
1007 | |
1008 | sdata->vif.bss_conf.ssid_len = params->ssid_len; |
1009 | if (params->ssid_len) |
1010 | memcpy(sdata->vif.bss_conf.ssid, params->ssid, |
1011 | params->ssid_len); |
1012 | sdata->vif.bss_conf.hidden_ssid = |
1013 | (params->hidden_ssid != NL80211_HIDDEN_SSID_NOT_IN_USE); |
1014 | |
1015 | memset(&sdata->vif.bss_conf.p2p_noa_attr, 0, |
1016 | sizeof(sdata->vif.bss_conf.p2p_noa_attr)); |
1017 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow = |
1018 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
1019 | if (params->p2p_opp_ps) |
1020 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
1021 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
1022 | |
1023 | err = ieee80211_assign_beacon(sdata, ¶ms->beacon); |
1024 | if (err < 0) { |
1025 | ieee80211_vif_release_channel(sdata); |
1026 | return err; |
1027 | } |
1028 | changed |= err; |
1029 | |
1030 | err = drv_start_ap(sdata->local, sdata); |
1031 | if (err) { |
1032 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
1033 | |
1034 | if (old) |
1035 | kfree_rcu(old, rcu_head); |
1036 | RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
1037 | ieee80211_vif_release_channel(sdata); |
1038 | return err; |
1039 | } |
1040 | |
1041 | ieee80211_recalc_dtim(local, sdata); |
1042 | ieee80211_bss_info_change_notify(sdata, changed); |
1043 | |
1044 | netif_carrier_on(dev); |
1045 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
1046 | netif_carrier_on(vlan->dev); |
1047 | |
1048 | return 0; |
1049 | } |
1050 | |
1051 | static int ieee80211_change_beacon(struct wiphy *wiphy, struct net_device *dev, |
1052 | struct cfg80211_beacon_data *params) |
1053 | { |
1054 | struct ieee80211_sub_if_data *sdata; |
1055 | struct beacon_data *old; |
1056 | int err; |
1057 | |
1058 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1059 | sdata_assert_lock(sdata); |
1060 | |
1061 | /* don't allow changing the beacon while CSA is in place - offset |
1062 | * of channel switch counter may change |
1063 | */ |
1064 | if (sdata->vif.csa_active) |
1065 | return -EBUSY; |
1066 | |
1067 | old = sdata_dereference(sdata->u.ap.beacon, sdata); |
1068 | if (!old) |
1069 | return -ENOENT; |
1070 | |
1071 | err = ieee80211_assign_beacon(sdata, params); |
1072 | if (err < 0) |
1073 | return err; |
1074 | ieee80211_bss_info_change_notify(sdata, err); |
1075 | return 0; |
1076 | } |
1077 | |
1078 | static int ieee80211_stop_ap(struct wiphy *wiphy, struct net_device *dev) |
1079 | { |
1080 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1081 | struct ieee80211_sub_if_data *vlan; |
1082 | struct ieee80211_local *local = sdata->local; |
1083 | struct beacon_data *old_beacon; |
1084 | struct probe_resp *old_probe_resp; |
1085 | struct cfg80211_chan_def chandef; |
1086 | |
1087 | sdata_assert_lock(sdata); |
1088 | |
1089 | old_beacon = sdata_dereference(sdata->u.ap.beacon, sdata); |
1090 | if (!old_beacon) |
1091 | return -ENOENT; |
1092 | old_probe_resp = sdata_dereference(sdata->u.ap.probe_resp, sdata); |
1093 | |
1094 | /* abort any running channel switch */ |
1095 | sdata->vif.csa_active = false; |
1096 | kfree(sdata->u.ap.next_beacon); |
1097 | sdata->u.ap.next_beacon = NULL; |
1098 | |
1099 | /* turn off carrier for this interface and dependent VLANs */ |
1100 | list_for_each_entry(vlan, &sdata->u.ap.vlans, u.vlan.list) |
1101 | netif_carrier_off(vlan->dev); |
1102 | netif_carrier_off(dev); |
1103 | |
1104 | /* remove beacon and probe response */ |
1105 | RCU_INIT_POINTER(sdata->u.ap.beacon, NULL); |
1106 | RCU_INIT_POINTER(sdata->u.ap.probe_resp, NULL); |
1107 | kfree_rcu(old_beacon, rcu_head); |
1108 | if (old_probe_resp) |
1109 | kfree_rcu(old_probe_resp, rcu_head); |
1110 | sdata->u.ap.driver_smps_mode = IEEE80211_SMPS_OFF; |
1111 | |
1112 | __sta_info_flush(sdata, true); |
1113 | ieee80211_free_keys(sdata, true); |
1114 | |
1115 | sdata->vif.bss_conf.enable_beacon = false; |
1116 | sdata->vif.bss_conf.ssid_len = 0; |
1117 | clear_bit(SDATA_STATE_OFFCHANNEL_BEACON_STOPPED, &sdata->state); |
1118 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); |
1119 | |
1120 | if (sdata->wdev.cac_started) { |
1121 | chandef = sdata->vif.bss_conf.chandef; |
1122 | cancel_delayed_work_sync(&sdata->dfs_cac_timer_work); |
1123 | cfg80211_cac_event(sdata->dev, &chandef, |
1124 | NL80211_RADAR_CAC_ABORTED, |
1125 | GFP_KERNEL); |
1126 | } |
1127 | |
1128 | drv_stop_ap(sdata->local, sdata); |
1129 | |
1130 | /* free all potentially still buffered bcast frames */ |
1131 | local->total_ps_buffered -= skb_queue_len(&sdata->u.ap.ps.bc_buf); |
1132 | skb_queue_purge(&sdata->u.ap.ps.bc_buf); |
1133 | |
1134 | ieee80211_vif_copy_chanctx_to_vlans(sdata, true); |
1135 | mutex_lock(&local->mtx); |
1136 | ieee80211_vif_release_channel(sdata); |
1137 | mutex_unlock(&local->mtx); |
1138 | |
1139 | return 0; |
1140 | } |
1141 | |
1142 | /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ |
1143 | struct iapp_layer2_update { |
1144 | u8 da[ETH_ALEN]; /* broadcast */ |
1145 | u8 sa[ETH_ALEN]; /* STA addr */ |
1146 | __be16 len; /* 6 */ |
1147 | u8 dsap; /* 0 */ |
1148 | u8 ssap; /* 0 */ |
1149 | u8 control; |
1150 | u8 xid_info[3]; |
1151 | } __packed; |
1152 | |
1153 | static void ieee80211_send_layer2_update(struct sta_info *sta) |
1154 | { |
1155 | struct iapp_layer2_update *msg; |
1156 | struct sk_buff *skb; |
1157 | |
1158 | /* Send Level 2 Update Frame to update forwarding tables in layer 2 |
1159 | * bridge devices */ |
1160 | |
1161 | skb = dev_alloc_skb(sizeof(*msg)); |
1162 | if (!skb) |
1163 | return; |
1164 | msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); |
1165 | |
1166 | /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) |
1167 | * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ |
1168 | |
1169 | eth_broadcast_addr(msg->da); |
1170 | memcpy(msg->sa, sta->sta.addr, ETH_ALEN); |
1171 | msg->len = htons(6); |
1172 | msg->dsap = 0; |
1173 | msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ |
1174 | msg->control = 0xaf; /* XID response lsb.1111F101. |
1175 | * F=0 (no poll command; unsolicited frame) */ |
1176 | msg->xid_info[0] = 0x81; /* XID format identifier */ |
1177 | msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ |
1178 | msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ |
1179 | |
1180 | skb->dev = sta->sdata->dev; |
1181 | skb->protocol = eth_type_trans(skb, sta->sdata->dev); |
1182 | memset(skb->cb, 0, sizeof(skb->cb)); |
1183 | netif_rx_ni(skb); |
1184 | } |
1185 | |
1186 | static int sta_apply_auth_flags(struct ieee80211_local *local, |
1187 | struct sta_info *sta, |
1188 | u32 mask, u32 set) |
1189 | { |
1190 | int ret; |
1191 | |
1192 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1193 | set & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1194 | !test_sta_flag(sta, WLAN_STA_AUTH)) { |
1195 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
1196 | if (ret) |
1197 | return ret; |
1198 | } |
1199 | |
1200 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1201 | set & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1202 | !test_sta_flag(sta, WLAN_STA_ASSOC)) { |
1203 | ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
1204 | if (ret) |
1205 | return ret; |
1206 | } |
1207 | |
1208 | if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
1209 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) |
1210 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTHORIZED); |
1211 | else if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
1212 | ret = sta_info_move_state(sta, IEEE80211_STA_ASSOC); |
1213 | else |
1214 | ret = 0; |
1215 | if (ret) |
1216 | return ret; |
1217 | } |
1218 | |
1219 | if (mask & BIT(NL80211_STA_FLAG_ASSOCIATED) && |
1220 | !(set & BIT(NL80211_STA_FLAG_ASSOCIATED)) && |
1221 | test_sta_flag(sta, WLAN_STA_ASSOC)) { |
1222 | ret = sta_info_move_state(sta, IEEE80211_STA_AUTH); |
1223 | if (ret) |
1224 | return ret; |
1225 | } |
1226 | |
1227 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED) && |
1228 | !(set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) && |
1229 | test_sta_flag(sta, WLAN_STA_AUTH)) { |
1230 | ret = sta_info_move_state(sta, IEEE80211_STA_NONE); |
1231 | if (ret) |
1232 | return ret; |
1233 | } |
1234 | |
1235 | return 0; |
1236 | } |
1237 | |
1238 | static int sta_apply_parameters(struct ieee80211_local *local, |
1239 | struct sta_info *sta, |
1240 | struct station_parameters *params) |
1241 | { |
1242 | int ret = 0; |
1243 | struct ieee80211_supported_band *sband; |
1244 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
1245 | enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
1246 | u32 mask, set; |
1247 | |
1248 | sband = local->hw.wiphy->bands[band]; |
1249 | |
1250 | mask = params->sta_flags_mask; |
1251 | set = params->sta_flags_set; |
1252 | |
1253 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
1254 | /* |
1255 | * In mesh mode, ASSOCIATED isn't part of the nl80211 |
1256 | * API but must follow AUTHENTICATED for driver state. |
1257 | */ |
1258 | if (mask & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
1259 | mask |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
1260 | if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED)) |
1261 | set |= BIT(NL80211_STA_FLAG_ASSOCIATED); |
1262 | } else if (test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
1263 | /* |
1264 | * TDLS -- everything follows authorized, but |
1265 | * only becoming authorized is possible, not |
1266 | * going back |
1267 | */ |
1268 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
1269 | set |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
1270 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
1271 | mask |= BIT(NL80211_STA_FLAG_AUTHENTICATED) | |
1272 | BIT(NL80211_STA_FLAG_ASSOCIATED); |
1273 | } |
1274 | } |
1275 | |
1276 | ret = sta_apply_auth_flags(local, sta, mask, set); |
1277 | if (ret) |
1278 | return ret; |
1279 | |
1280 | if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { |
1281 | if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) |
1282 | set_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
1283 | else |
1284 | clear_sta_flag(sta, WLAN_STA_SHORT_PREAMBLE); |
1285 | } |
1286 | |
1287 | if (mask & BIT(NL80211_STA_FLAG_WME)) { |
1288 | if (set & BIT(NL80211_STA_FLAG_WME)) { |
1289 | set_sta_flag(sta, WLAN_STA_WME); |
1290 | sta->sta.wme = true; |
1291 | } else { |
1292 | clear_sta_flag(sta, WLAN_STA_WME); |
1293 | sta->sta.wme = false; |
1294 | } |
1295 | } |
1296 | |
1297 | if (mask & BIT(NL80211_STA_FLAG_MFP)) { |
1298 | if (set & BIT(NL80211_STA_FLAG_MFP)) |
1299 | set_sta_flag(sta, WLAN_STA_MFP); |
1300 | else |
1301 | clear_sta_flag(sta, WLAN_STA_MFP); |
1302 | } |
1303 | |
1304 | if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) { |
1305 | if (set & BIT(NL80211_STA_FLAG_TDLS_PEER)) |
1306 | set_sta_flag(sta, WLAN_STA_TDLS_PEER); |
1307 | else |
1308 | clear_sta_flag(sta, WLAN_STA_TDLS_PEER); |
1309 | } |
1310 | |
1311 | if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) { |
1312 | sta->sta.uapsd_queues = params->uapsd_queues; |
1313 | sta->sta.max_sp = params->max_sp; |
1314 | } |
1315 | |
1316 | /* |
1317 | * cfg80211 validates this (1-2007) and allows setting the AID |
1318 | * only when creating a new station entry |
1319 | */ |
1320 | if (params->aid) |
1321 | sta->sta.aid = params->aid; |
1322 | |
1323 | /* |
1324 | * Some of the following updates would be racy if called on an |
1325 | * existing station, via ieee80211_change_station(). However, |
1326 | * all such changes are rejected by cfg80211 except for updates |
1327 | * changing the supported rates on an existing but not yet used |
1328 | * TDLS peer. |
1329 | */ |
1330 | |
1331 | if (params->listen_interval >= 0) |
1332 | sta->listen_interval = params->listen_interval; |
1333 | |
1334 | if (params->supported_rates) { |
1335 | ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
1336 | sband, params->supported_rates, |
1337 | params->supported_rates_len, |
1338 | &sta->sta.supp_rates[band]); |
1339 | } |
1340 | |
1341 | if (params->ht_capa) |
1342 | ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband, |
1343 | params->ht_capa, sta); |
1344 | |
1345 | if (params->vht_capa) |
1346 | ieee80211_vht_cap_ie_to_sta_vht_cap(sdata, sband, |
1347 | params->vht_capa, sta); |
1348 | |
1349 | if (params->opmode_notif_used) { |
1350 | /* returned value is only needed for rc update, but the |
1351 | * rc isn't initialized here yet, so ignore it |
1352 | */ |
1353 | __ieee80211_vht_handle_opmode(sdata, sta, |
1354 | params->opmode_notif, |
1355 | band, false); |
1356 | } |
1357 | |
1358 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
1359 | #ifdef CONFIG_MAC80211_MESH |
1360 | u32 changed = 0; |
1361 | |
1362 | if (params->sta_modify_mask & STATION_PARAM_APPLY_PLINK_STATE) { |
1363 | switch (params->plink_state) { |
1364 | case NL80211_PLINK_ESTAB: |
1365 | if (sta->plink_state != NL80211_PLINK_ESTAB) |
1366 | changed = mesh_plink_inc_estab_count( |
1367 | sdata); |
1368 | sta->plink_state = params->plink_state; |
1369 | |
1370 | ieee80211_mps_sta_status_update(sta); |
1371 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
1372 | sdata->u.mesh.mshcfg.power_mode); |
1373 | break; |
1374 | case NL80211_PLINK_LISTEN: |
1375 | case NL80211_PLINK_BLOCKED: |
1376 | case NL80211_PLINK_OPN_SNT: |
1377 | case NL80211_PLINK_OPN_RCVD: |
1378 | case NL80211_PLINK_CNF_RCVD: |
1379 | case NL80211_PLINK_HOLDING: |
1380 | if (sta->plink_state == NL80211_PLINK_ESTAB) |
1381 | changed = mesh_plink_dec_estab_count( |
1382 | sdata); |
1383 | sta->plink_state = params->plink_state; |
1384 | |
1385 | ieee80211_mps_sta_status_update(sta); |
1386 | changed |= ieee80211_mps_set_sta_local_pm(sta, |
1387 | NL80211_MESH_POWER_UNKNOWN); |
1388 | break; |
1389 | default: |
1390 | /* nothing */ |
1391 | break; |
1392 | } |
1393 | } |
1394 | |
1395 | switch (params->plink_action) { |
1396 | case NL80211_PLINK_ACTION_NO_ACTION: |
1397 | /* nothing */ |
1398 | break; |
1399 | case NL80211_PLINK_ACTION_OPEN: |
1400 | changed |= mesh_plink_open(sta); |
1401 | break; |
1402 | case NL80211_PLINK_ACTION_BLOCK: |
1403 | changed |= mesh_plink_block(sta); |
1404 | break; |
1405 | } |
1406 | |
1407 | if (params->local_pm) |
1408 | changed |= |
1409 | ieee80211_mps_set_sta_local_pm(sta, |
1410 | params->local_pm); |
1411 | ieee80211_mbss_info_change_notify(sdata, changed); |
1412 | #endif |
1413 | } |
1414 | |
1415 | return 0; |
1416 | } |
1417 | |
1418 | static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, |
1419 | u8 *mac, struct station_parameters *params) |
1420 | { |
1421 | struct ieee80211_local *local = wiphy_priv(wiphy); |
1422 | struct sta_info *sta; |
1423 | struct ieee80211_sub_if_data *sdata; |
1424 | int err; |
1425 | int layer2_update; |
1426 | |
1427 | if (params->vlan) { |
1428 | sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
1429 | |
1430 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && |
1431 | sdata->vif.type != NL80211_IFTYPE_AP) |
1432 | return -EINVAL; |
1433 | } else |
1434 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1435 | |
1436 | if (ether_addr_equal(mac, sdata->vif.addr)) |
1437 | return -EINVAL; |
1438 | |
1439 | if (is_multicast_ether_addr(mac)) |
1440 | return -EINVAL; |
1441 | |
1442 | sta = sta_info_alloc(sdata, mac, GFP_KERNEL); |
1443 | if (!sta) |
1444 | return -ENOMEM; |
1445 | |
1446 | /* |
1447 | * defaults -- if userspace wants something else we'll |
1448 | * change it accordingly in sta_apply_parameters() |
1449 | */ |
1450 | if (!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER))) { |
1451 | sta_info_pre_move_state(sta, IEEE80211_STA_AUTH); |
1452 | sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC); |
1453 | } |
1454 | |
1455 | err = sta_apply_parameters(local, sta, params); |
1456 | if (err) { |
1457 | sta_info_free(local, sta); |
1458 | return err; |
1459 | } |
1460 | |
1461 | /* |
1462 | * for TDLS, rate control should be initialized only when |
1463 | * rates are known and station is marked authorized |
1464 | */ |
1465 | if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) |
1466 | rate_control_rate_init(sta); |
1467 | |
1468 | layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || |
1469 | sdata->vif.type == NL80211_IFTYPE_AP; |
1470 | |
1471 | err = sta_info_insert_rcu(sta); |
1472 | if (err) { |
1473 | rcu_read_unlock(); |
1474 | return err; |
1475 | } |
1476 | |
1477 | if (layer2_update) |
1478 | ieee80211_send_layer2_update(sta); |
1479 | |
1480 | rcu_read_unlock(); |
1481 | |
1482 | return 0; |
1483 | } |
1484 | |
1485 | static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, |
1486 | u8 *mac) |
1487 | { |
1488 | struct ieee80211_sub_if_data *sdata; |
1489 | |
1490 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1491 | |
1492 | if (mac) |
1493 | return sta_info_destroy_addr_bss(sdata, mac); |
1494 | |
1495 | sta_info_flush(sdata); |
1496 | return 0; |
1497 | } |
1498 | |
1499 | static int ieee80211_change_station(struct wiphy *wiphy, |
1500 | struct net_device *dev, u8 *mac, |
1501 | struct station_parameters *params) |
1502 | { |
1503 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1504 | struct ieee80211_local *local = wiphy_priv(wiphy); |
1505 | struct sta_info *sta; |
1506 | struct ieee80211_sub_if_data *vlansdata; |
1507 | enum cfg80211_station_type statype; |
1508 | int err; |
1509 | |
1510 | mutex_lock(&local->sta_mtx); |
1511 | |
1512 | sta = sta_info_get_bss(sdata, mac); |
1513 | if (!sta) { |
1514 | err = -ENOENT; |
1515 | goto out_err; |
1516 | } |
1517 | |
1518 | switch (sdata->vif.type) { |
1519 | case NL80211_IFTYPE_MESH_POINT: |
1520 | if (sdata->u.mesh.user_mpm) |
1521 | statype = CFG80211_STA_MESH_PEER_USER; |
1522 | else |
1523 | statype = CFG80211_STA_MESH_PEER_KERNEL; |
1524 | break; |
1525 | case NL80211_IFTYPE_ADHOC: |
1526 | statype = CFG80211_STA_IBSS; |
1527 | break; |
1528 | case NL80211_IFTYPE_STATION: |
1529 | if (!test_sta_flag(sta, WLAN_STA_TDLS_PEER)) { |
1530 | statype = CFG80211_STA_AP_STA; |
1531 | break; |
1532 | } |
1533 | if (test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
1534 | statype = CFG80211_STA_TDLS_PEER_ACTIVE; |
1535 | else |
1536 | statype = CFG80211_STA_TDLS_PEER_SETUP; |
1537 | break; |
1538 | case NL80211_IFTYPE_AP: |
1539 | case NL80211_IFTYPE_AP_VLAN: |
1540 | statype = CFG80211_STA_AP_CLIENT; |
1541 | break; |
1542 | default: |
1543 | err = -EOPNOTSUPP; |
1544 | goto out_err; |
1545 | } |
1546 | |
1547 | err = cfg80211_check_station_change(wiphy, params, statype); |
1548 | if (err) |
1549 | goto out_err; |
1550 | |
1551 | if (params->vlan && params->vlan != sta->sdata->dev) { |
1552 | bool prev_4addr = false; |
1553 | bool new_4addr = false; |
1554 | |
1555 | vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
1556 | |
1557 | if (params->vlan->ieee80211_ptr->use_4addr) { |
1558 | if (vlansdata->u.vlan.sta) { |
1559 | err = -EBUSY; |
1560 | goto out_err; |
1561 | } |
1562 | |
1563 | rcu_assign_pointer(vlansdata->u.vlan.sta, sta); |
1564 | new_4addr = true; |
1565 | } |
1566 | |
1567 | if (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && |
1568 | sta->sdata->u.vlan.sta) { |
1569 | rcu_assign_pointer(sta->sdata->u.vlan.sta, NULL); |
1570 | prev_4addr = true; |
1571 | } |
1572 | |
1573 | sta->sdata = vlansdata; |
1574 | |
1575 | if (sta->sta_state == IEEE80211_STA_AUTHORIZED && |
1576 | prev_4addr != new_4addr) { |
1577 | if (new_4addr) |
1578 | atomic_dec(&sta->sdata->bss->num_mcast_sta); |
1579 | else |
1580 | atomic_inc(&sta->sdata->bss->num_mcast_sta); |
1581 | } |
1582 | |
1583 | ieee80211_send_layer2_update(sta); |
1584 | } |
1585 | |
1586 | err = sta_apply_parameters(local, sta, params); |
1587 | if (err) |
1588 | goto out_err; |
1589 | |
1590 | /* When peer becomes authorized, init rate control as well */ |
1591 | if (test_sta_flag(sta, WLAN_STA_TDLS_PEER) && |
1592 | test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
1593 | rate_control_rate_init(sta); |
1594 | |
1595 | mutex_unlock(&local->sta_mtx); |
1596 | |
1597 | if ((sdata->vif.type == NL80211_IFTYPE_AP || |
1598 | sdata->vif.type == NL80211_IFTYPE_AP_VLAN) && |
1599 | sta->known_smps_mode != sta->sdata->bss->req_smps && |
1600 | test_sta_flag(sta, WLAN_STA_AUTHORIZED) && |
1601 | sta_info_tx_streams(sta) != 1) { |
1602 | ht_dbg(sta->sdata, |
1603 | "%pM just authorized and MIMO capable - update SMPS\n", |
1604 | sta->sta.addr); |
1605 | ieee80211_send_smps_action(sta->sdata, |
1606 | sta->sdata->bss->req_smps, |
1607 | sta->sta.addr, |
1608 | sta->sdata->vif.bss_conf.bssid); |
1609 | } |
1610 | |
1611 | if (sdata->vif.type == NL80211_IFTYPE_STATION && |
1612 | params->sta_flags_mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { |
1613 | ieee80211_recalc_ps(local, -1); |
1614 | ieee80211_recalc_ps_vif(sdata); |
1615 | } |
1616 | |
1617 | return 0; |
1618 | out_err: |
1619 | mutex_unlock(&local->sta_mtx); |
1620 | return err; |
1621 | } |
1622 | |
1623 | #ifdef CONFIG_MAC80211_MESH |
1624 | static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, |
1625 | u8 *dst, u8 *next_hop) |
1626 | { |
1627 | struct ieee80211_sub_if_data *sdata; |
1628 | struct mesh_path *mpath; |
1629 | struct sta_info *sta; |
1630 | |
1631 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1632 | |
1633 | rcu_read_lock(); |
1634 | sta = sta_info_get(sdata, next_hop); |
1635 | if (!sta) { |
1636 | rcu_read_unlock(); |
1637 | return -ENOENT; |
1638 | } |
1639 | |
1640 | mpath = mesh_path_add(sdata, dst); |
1641 | if (IS_ERR(mpath)) { |
1642 | rcu_read_unlock(); |
1643 | return PTR_ERR(mpath); |
1644 | } |
1645 | |
1646 | mesh_path_fix_nexthop(mpath, sta); |
1647 | |
1648 | rcu_read_unlock(); |
1649 | return 0; |
1650 | } |
1651 | |
1652 | static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, |
1653 | u8 *dst) |
1654 | { |
1655 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1656 | |
1657 | if (dst) |
1658 | return mesh_path_del(sdata, dst); |
1659 | |
1660 | mesh_path_flush_by_iface(sdata); |
1661 | return 0; |
1662 | } |
1663 | |
1664 | static int ieee80211_change_mpath(struct wiphy *wiphy, |
1665 | struct net_device *dev, |
1666 | u8 *dst, u8 *next_hop) |
1667 | { |
1668 | struct ieee80211_sub_if_data *sdata; |
1669 | struct mesh_path *mpath; |
1670 | struct sta_info *sta; |
1671 | |
1672 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1673 | |
1674 | rcu_read_lock(); |
1675 | |
1676 | sta = sta_info_get(sdata, next_hop); |
1677 | if (!sta) { |
1678 | rcu_read_unlock(); |
1679 | return -ENOENT; |
1680 | } |
1681 | |
1682 | mpath = mesh_path_lookup(sdata, dst); |
1683 | if (!mpath) { |
1684 | rcu_read_unlock(); |
1685 | return -ENOENT; |
1686 | } |
1687 | |
1688 | mesh_path_fix_nexthop(mpath, sta); |
1689 | |
1690 | rcu_read_unlock(); |
1691 | return 0; |
1692 | } |
1693 | |
1694 | static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, |
1695 | struct mpath_info *pinfo) |
1696 | { |
1697 | struct sta_info *next_hop_sta = rcu_dereference(mpath->next_hop); |
1698 | |
1699 | if (next_hop_sta) |
1700 | memcpy(next_hop, next_hop_sta->sta.addr, ETH_ALEN); |
1701 | else |
1702 | memset(next_hop, 0, ETH_ALEN); |
1703 | |
1704 | memset(pinfo, 0, sizeof(*pinfo)); |
1705 | |
1706 | pinfo->generation = mesh_paths_generation; |
1707 | |
1708 | pinfo->filled = MPATH_INFO_FRAME_QLEN | |
1709 | MPATH_INFO_SN | |
1710 | MPATH_INFO_METRIC | |
1711 | MPATH_INFO_EXPTIME | |
1712 | MPATH_INFO_DISCOVERY_TIMEOUT | |
1713 | MPATH_INFO_DISCOVERY_RETRIES | |
1714 | MPATH_INFO_FLAGS; |
1715 | |
1716 | pinfo->frame_qlen = mpath->frame_queue.qlen; |
1717 | pinfo->sn = mpath->sn; |
1718 | pinfo->metric = mpath->metric; |
1719 | if (time_before(jiffies, mpath->exp_time)) |
1720 | pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); |
1721 | pinfo->discovery_timeout = |
1722 | jiffies_to_msecs(mpath->discovery_timeout); |
1723 | pinfo->discovery_retries = mpath->discovery_retries; |
1724 | if (mpath->flags & MESH_PATH_ACTIVE) |
1725 | pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; |
1726 | if (mpath->flags & MESH_PATH_RESOLVING) |
1727 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; |
1728 | if (mpath->flags & MESH_PATH_SN_VALID) |
1729 | pinfo->flags |= NL80211_MPATH_FLAG_SN_VALID; |
1730 | if (mpath->flags & MESH_PATH_FIXED) |
1731 | pinfo->flags |= NL80211_MPATH_FLAG_FIXED; |
1732 | if (mpath->flags & MESH_PATH_RESOLVED) |
1733 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVED; |
1734 | } |
1735 | |
1736 | static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, |
1737 | u8 *dst, u8 *next_hop, struct mpath_info *pinfo) |
1738 | |
1739 | { |
1740 | struct ieee80211_sub_if_data *sdata; |
1741 | struct mesh_path *mpath; |
1742 | |
1743 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1744 | |
1745 | rcu_read_lock(); |
1746 | mpath = mesh_path_lookup(sdata, dst); |
1747 | if (!mpath) { |
1748 | rcu_read_unlock(); |
1749 | return -ENOENT; |
1750 | } |
1751 | memcpy(dst, mpath->dst, ETH_ALEN); |
1752 | mpath_set_pinfo(mpath, next_hop, pinfo); |
1753 | rcu_read_unlock(); |
1754 | return 0; |
1755 | } |
1756 | |
1757 | static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, |
1758 | int idx, u8 *dst, u8 *next_hop, |
1759 | struct mpath_info *pinfo) |
1760 | { |
1761 | struct ieee80211_sub_if_data *sdata; |
1762 | struct mesh_path *mpath; |
1763 | |
1764 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1765 | |
1766 | rcu_read_lock(); |
1767 | mpath = mesh_path_lookup_by_idx(sdata, idx); |
1768 | if (!mpath) { |
1769 | rcu_read_unlock(); |
1770 | return -ENOENT; |
1771 | } |
1772 | memcpy(dst, mpath->dst, ETH_ALEN); |
1773 | mpath_set_pinfo(mpath, next_hop, pinfo); |
1774 | rcu_read_unlock(); |
1775 | return 0; |
1776 | } |
1777 | |
1778 | static int ieee80211_get_mesh_config(struct wiphy *wiphy, |
1779 | struct net_device *dev, |
1780 | struct mesh_config *conf) |
1781 | { |
1782 | struct ieee80211_sub_if_data *sdata; |
1783 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1784 | |
1785 | memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); |
1786 | return 0; |
1787 | } |
1788 | |
1789 | static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) |
1790 | { |
1791 | return (mask >> (parm-1)) & 0x1; |
1792 | } |
1793 | |
1794 | static int copy_mesh_setup(struct ieee80211_if_mesh *ifmsh, |
1795 | const struct mesh_setup *setup) |
1796 | { |
1797 | u8 *new_ie; |
1798 | const u8 *old_ie; |
1799 | struct ieee80211_sub_if_data *sdata = container_of(ifmsh, |
1800 | struct ieee80211_sub_if_data, u.mesh); |
1801 | |
1802 | /* allocate information elements */ |
1803 | new_ie = NULL; |
1804 | old_ie = ifmsh->ie; |
1805 | |
1806 | if (setup->ie_len) { |
1807 | new_ie = kmemdup(setup->ie, setup->ie_len, |
1808 | GFP_KERNEL); |
1809 | if (!new_ie) |
1810 | return -ENOMEM; |
1811 | } |
1812 | ifmsh->ie_len = setup->ie_len; |
1813 | ifmsh->ie = new_ie; |
1814 | kfree(old_ie); |
1815 | |
1816 | /* now copy the rest of the setup parameters */ |
1817 | ifmsh->mesh_id_len = setup->mesh_id_len; |
1818 | memcpy(ifmsh->mesh_id, setup->mesh_id, ifmsh->mesh_id_len); |
1819 | ifmsh->mesh_sp_id = setup->sync_method; |
1820 | ifmsh->mesh_pp_id = setup->path_sel_proto; |
1821 | ifmsh->mesh_pm_id = setup->path_metric; |
1822 | ifmsh->user_mpm = setup->user_mpm; |
1823 | ifmsh->mesh_auth_id = setup->auth_id; |
1824 | ifmsh->security = IEEE80211_MESH_SEC_NONE; |
1825 | if (setup->is_authenticated) |
1826 | ifmsh->security |= IEEE80211_MESH_SEC_AUTHED; |
1827 | if (setup->is_secure) |
1828 | ifmsh->security |= IEEE80211_MESH_SEC_SECURED; |
1829 | |
1830 | /* mcast rate setting in Mesh Node */ |
1831 | memcpy(sdata->vif.bss_conf.mcast_rate, setup->mcast_rate, |
1832 | sizeof(setup->mcast_rate)); |
1833 | sdata->vif.bss_conf.basic_rates = setup->basic_rates; |
1834 | |
1835 | sdata->vif.bss_conf.beacon_int = setup->beacon_interval; |
1836 | sdata->vif.bss_conf.dtim_period = setup->dtim_period; |
1837 | |
1838 | return 0; |
1839 | } |
1840 | |
1841 | static int ieee80211_update_mesh_config(struct wiphy *wiphy, |
1842 | struct net_device *dev, u32 mask, |
1843 | const struct mesh_config *nconf) |
1844 | { |
1845 | struct mesh_config *conf; |
1846 | struct ieee80211_sub_if_data *sdata; |
1847 | struct ieee80211_if_mesh *ifmsh; |
1848 | |
1849 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1850 | ifmsh = &sdata->u.mesh; |
1851 | |
1852 | /* Set the config options which we are interested in setting */ |
1853 | conf = &(sdata->u.mesh.mshcfg); |
1854 | if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) |
1855 | conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; |
1856 | if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) |
1857 | conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; |
1858 | if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) |
1859 | conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; |
1860 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) |
1861 | conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; |
1862 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) |
1863 | conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; |
1864 | if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) |
1865 | conf->dot11MeshTTL = nconf->dot11MeshTTL; |
1866 | if (_chg_mesh_attr(NL80211_MESHCONF_ELEMENT_TTL, mask)) |
1867 | conf->element_ttl = nconf->element_ttl; |
1868 | if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) { |
1869 | if (ifmsh->user_mpm) |
1870 | return -EBUSY; |
1871 | conf->auto_open_plinks = nconf->auto_open_plinks; |
1872 | } |
1873 | if (_chg_mesh_attr(NL80211_MESHCONF_SYNC_OFFSET_MAX_NEIGHBOR, mask)) |
1874 | conf->dot11MeshNbrOffsetMaxNeighbor = |
1875 | nconf->dot11MeshNbrOffsetMaxNeighbor; |
1876 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) |
1877 | conf->dot11MeshHWMPmaxPREQretries = |
1878 | nconf->dot11MeshHWMPmaxPREQretries; |
1879 | if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) |
1880 | conf->path_refresh_time = nconf->path_refresh_time; |
1881 | if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) |
1882 | conf->min_discovery_timeout = nconf->min_discovery_timeout; |
1883 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) |
1884 | conf->dot11MeshHWMPactivePathTimeout = |
1885 | nconf->dot11MeshHWMPactivePathTimeout; |
1886 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) |
1887 | conf->dot11MeshHWMPpreqMinInterval = |
1888 | nconf->dot11MeshHWMPpreqMinInterval; |
1889 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PERR_MIN_INTERVAL, mask)) |
1890 | conf->dot11MeshHWMPperrMinInterval = |
1891 | nconf->dot11MeshHWMPperrMinInterval; |
1892 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, |
1893 | mask)) |
1894 | conf->dot11MeshHWMPnetDiameterTraversalTime = |
1895 | nconf->dot11MeshHWMPnetDiameterTraversalTime; |
1896 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOTMODE, mask)) { |
1897 | conf->dot11MeshHWMPRootMode = nconf->dot11MeshHWMPRootMode; |
1898 | ieee80211_mesh_root_setup(ifmsh); |
1899 | } |
1900 | if (_chg_mesh_attr(NL80211_MESHCONF_GATE_ANNOUNCEMENTS, mask)) { |
1901 | /* our current gate announcement implementation rides on root |
1902 | * announcements, so require this ifmsh to also be a root node |
1903 | * */ |
1904 | if (nconf->dot11MeshGateAnnouncementProtocol && |
1905 | !(conf->dot11MeshHWMPRootMode > IEEE80211_ROOTMODE_ROOT)) { |
1906 | conf->dot11MeshHWMPRootMode = IEEE80211_PROACTIVE_RANN; |
1907 | ieee80211_mesh_root_setup(ifmsh); |
1908 | } |
1909 | conf->dot11MeshGateAnnouncementProtocol = |
1910 | nconf->dot11MeshGateAnnouncementProtocol; |
1911 | } |
1912 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_RANN_INTERVAL, mask)) |
1913 | conf->dot11MeshHWMPRannInterval = |
1914 | nconf->dot11MeshHWMPRannInterval; |
1915 | if (_chg_mesh_attr(NL80211_MESHCONF_FORWARDING, mask)) |
1916 | conf->dot11MeshForwarding = nconf->dot11MeshForwarding; |
1917 | if (_chg_mesh_attr(NL80211_MESHCONF_RSSI_THRESHOLD, mask)) { |
1918 | /* our RSSI threshold implementation is supported only for |
1919 | * devices that report signal in dBm. |
1920 | */ |
1921 | if (!(sdata->local->hw.flags & IEEE80211_HW_SIGNAL_DBM)) |
1922 | return -ENOTSUPP; |
1923 | conf->rssi_threshold = nconf->rssi_threshold; |
1924 | } |
1925 | if (_chg_mesh_attr(NL80211_MESHCONF_HT_OPMODE, mask)) { |
1926 | conf->ht_opmode = nconf->ht_opmode; |
1927 | sdata->vif.bss_conf.ht_operation_mode = nconf->ht_opmode; |
1928 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_HT); |
1929 | } |
1930 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PATH_TO_ROOT_TIMEOUT, mask)) |
1931 | conf->dot11MeshHWMPactivePathToRootTimeout = |
1932 | nconf->dot11MeshHWMPactivePathToRootTimeout; |
1933 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ROOT_INTERVAL, mask)) |
1934 | conf->dot11MeshHWMProotInterval = |
1935 | nconf->dot11MeshHWMProotInterval; |
1936 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_CONFIRMATION_INTERVAL, mask)) |
1937 | conf->dot11MeshHWMPconfirmationInterval = |
1938 | nconf->dot11MeshHWMPconfirmationInterval; |
1939 | if (_chg_mesh_attr(NL80211_MESHCONF_POWER_MODE, mask)) { |
1940 | conf->power_mode = nconf->power_mode; |
1941 | ieee80211_mps_local_status_update(sdata); |
1942 | } |
1943 | if (_chg_mesh_attr(NL80211_MESHCONF_AWAKE_WINDOW, mask)) |
1944 | conf->dot11MeshAwakeWindowDuration = |
1945 | nconf->dot11MeshAwakeWindowDuration; |
1946 | if (_chg_mesh_attr(NL80211_MESHCONF_PLINK_TIMEOUT, mask)) |
1947 | conf->plink_timeout = nconf->plink_timeout; |
1948 | ieee80211_mbss_info_change_notify(sdata, BSS_CHANGED_BEACON); |
1949 | return 0; |
1950 | } |
1951 | |
1952 | static int ieee80211_join_mesh(struct wiphy *wiphy, struct net_device *dev, |
1953 | const struct mesh_config *conf, |
1954 | const struct mesh_setup *setup) |
1955 | { |
1956 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1957 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
1958 | int err; |
1959 | |
1960 | memcpy(&ifmsh->mshcfg, conf, sizeof(struct mesh_config)); |
1961 | err = copy_mesh_setup(ifmsh, setup); |
1962 | if (err) |
1963 | return err; |
1964 | |
1965 | /* can mesh use other SMPS modes? */ |
1966 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
1967 | sdata->needed_rx_chains = sdata->local->rx_chains; |
1968 | |
1969 | mutex_lock(&sdata->local->mtx); |
1970 | err = ieee80211_vif_use_channel(sdata, &setup->chandef, |
1971 | IEEE80211_CHANCTX_SHARED); |
1972 | mutex_unlock(&sdata->local->mtx); |
1973 | if (err) |
1974 | return err; |
1975 | |
1976 | return ieee80211_start_mesh(sdata); |
1977 | } |
1978 | |
1979 | static int ieee80211_leave_mesh(struct wiphy *wiphy, struct net_device *dev) |
1980 | { |
1981 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1982 | |
1983 | ieee80211_stop_mesh(sdata); |
1984 | mutex_lock(&sdata->local->mtx); |
1985 | ieee80211_vif_release_channel(sdata); |
1986 | mutex_unlock(&sdata->local->mtx); |
1987 | |
1988 | return 0; |
1989 | } |
1990 | #endif |
1991 | |
1992 | static int ieee80211_change_bss(struct wiphy *wiphy, |
1993 | struct net_device *dev, |
1994 | struct bss_parameters *params) |
1995 | { |
1996 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
1997 | enum ieee80211_band band; |
1998 | u32 changed = 0; |
1999 | |
2000 | if (!sdata_dereference(sdata->u.ap.beacon, sdata)) |
2001 | return -ENOENT; |
2002 | |
2003 | band = ieee80211_get_sdata_band(sdata); |
2004 | |
2005 | if (params->use_cts_prot >= 0) { |
2006 | sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; |
2007 | changed |= BSS_CHANGED_ERP_CTS_PROT; |
2008 | } |
2009 | if (params->use_short_preamble >= 0) { |
2010 | sdata->vif.bss_conf.use_short_preamble = |
2011 | params->use_short_preamble; |
2012 | changed |= BSS_CHANGED_ERP_PREAMBLE; |
2013 | } |
2014 | |
2015 | if (!sdata->vif.bss_conf.use_short_slot && |
2016 | band == IEEE80211_BAND_5GHZ) { |
2017 | sdata->vif.bss_conf.use_short_slot = true; |
2018 | changed |= BSS_CHANGED_ERP_SLOT; |
2019 | } |
2020 | |
2021 | if (params->use_short_slot_time >= 0) { |
2022 | sdata->vif.bss_conf.use_short_slot = |
2023 | params->use_short_slot_time; |
2024 | changed |= BSS_CHANGED_ERP_SLOT; |
2025 | } |
2026 | |
2027 | if (params->basic_rates) { |
2028 | ieee80211_parse_bitrates(&sdata->vif.bss_conf.chandef, |
2029 | wiphy->bands[band], |
2030 | params->basic_rates, |
2031 | params->basic_rates_len, |
2032 | &sdata->vif.bss_conf.basic_rates); |
2033 | changed |= BSS_CHANGED_BASIC_RATES; |
2034 | } |
2035 | |
2036 | if (params->ap_isolate >= 0) { |
2037 | if (params->ap_isolate) |
2038 | sdata->flags |= IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
2039 | else |
2040 | sdata->flags &= ~IEEE80211_SDATA_DONT_BRIDGE_PACKETS; |
2041 | } |
2042 | |
2043 | if (params->ht_opmode >= 0) { |
2044 | sdata->vif.bss_conf.ht_operation_mode = |
2045 | (u16) params->ht_opmode; |
2046 | changed |= BSS_CHANGED_HT; |
2047 | } |
2048 | |
2049 | if (params->p2p_ctwindow >= 0) { |
2050 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= |
2051 | ~IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
2052 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
2053 | params->p2p_ctwindow & IEEE80211_P2P_OPPPS_CTWINDOW_MASK; |
2054 | changed |= BSS_CHANGED_P2P_PS; |
2055 | } |
2056 | |
2057 | if (params->p2p_opp_ps > 0) { |
2058 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow |= |
2059 | IEEE80211_P2P_OPPPS_ENABLE_BIT; |
2060 | changed |= BSS_CHANGED_P2P_PS; |
2061 | } else if (params->p2p_opp_ps == 0) { |
2062 | sdata->vif.bss_conf.p2p_noa_attr.oppps_ctwindow &= |
2063 | ~IEEE80211_P2P_OPPPS_ENABLE_BIT; |
2064 | changed |= BSS_CHANGED_P2P_PS; |
2065 | } |
2066 | |
2067 | ieee80211_bss_info_change_notify(sdata, changed); |
2068 | |
2069 | return 0; |
2070 | } |
2071 | |
2072 | static int ieee80211_set_txq_params(struct wiphy *wiphy, |
2073 | struct net_device *dev, |
2074 | struct ieee80211_txq_params *params) |
2075 | { |
2076 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2077 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2078 | struct ieee80211_tx_queue_params p; |
2079 | |
2080 | if (!local->ops->conf_tx) |
2081 | return -EOPNOTSUPP; |
2082 | |
2083 | if (local->hw.queues < IEEE80211_NUM_ACS) |
2084 | return -EOPNOTSUPP; |
2085 | |
2086 | memset(&p, 0, sizeof(p)); |
2087 | p.aifs = params->aifs; |
2088 | p.cw_max = params->cwmax; |
2089 | p.cw_min = params->cwmin; |
2090 | p.txop = params->txop; |
2091 | |
2092 | /* |
2093 | * Setting tx queue params disables u-apsd because it's only |
2094 | * called in master mode. |
2095 | */ |
2096 | p.uapsd = false; |
2097 | |
2098 | sdata->tx_conf[params->ac] = p; |
2099 | if (drv_conf_tx(local, sdata, params->ac, &p)) { |
2100 | wiphy_debug(local->hw.wiphy, |
2101 | "failed to set TX queue parameters for AC %d\n", |
2102 | params->ac); |
2103 | return -EINVAL; |
2104 | } |
2105 | |
2106 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS); |
2107 | |
2108 | return 0; |
2109 | } |
2110 | |
2111 | #ifdef CONFIG_PM |
2112 | static int ieee80211_suspend(struct wiphy *wiphy, |
2113 | struct cfg80211_wowlan *wowlan) |
2114 | { |
2115 | return __ieee80211_suspend(wiphy_priv(wiphy), wowlan); |
2116 | } |
2117 | |
2118 | static int ieee80211_resume(struct wiphy *wiphy) |
2119 | { |
2120 | return __ieee80211_resume(wiphy_priv(wiphy)); |
2121 | } |
2122 | #else |
2123 | #define ieee80211_suspend NULL |
2124 | #define ieee80211_resume NULL |
2125 | #endif |
2126 | |
2127 | static int ieee80211_scan(struct wiphy *wiphy, |
2128 | struct cfg80211_scan_request *req) |
2129 | { |
2130 | struct ieee80211_sub_if_data *sdata; |
2131 | |
2132 | sdata = IEEE80211_WDEV_TO_SUB_IF(req->wdev); |
2133 | |
2134 | switch (ieee80211_vif_type_p2p(&sdata->vif)) { |
2135 | case NL80211_IFTYPE_STATION: |
2136 | case NL80211_IFTYPE_ADHOC: |
2137 | case NL80211_IFTYPE_MESH_POINT: |
2138 | case NL80211_IFTYPE_P2P_CLIENT: |
2139 | case NL80211_IFTYPE_P2P_DEVICE: |
2140 | break; |
2141 | case NL80211_IFTYPE_P2P_GO: |
2142 | if (sdata->local->ops->hw_scan) |
2143 | break; |
2144 | /* |
2145 | * FIXME: implement NoA while scanning in software, |
2146 | * for now fall through to allow scanning only when |
2147 | * beaconing hasn't been configured yet |
2148 | */ |
2149 | case NL80211_IFTYPE_AP: |
2150 | /* |
2151 | * If the scan has been forced (and the driver supports |
2152 | * forcing), don't care about being beaconing already. |
2153 | * This will create problems to the attached stations (e.g. all |
2154 | * the frames sent while scanning on other channel will be |
2155 | * lost) |
2156 | */ |
2157 | if (sdata->u.ap.beacon && |
2158 | (!(wiphy->features & NL80211_FEATURE_AP_SCAN) || |
2159 | !(req->flags & NL80211_SCAN_FLAG_AP))) |
2160 | return -EOPNOTSUPP; |
2161 | break; |
2162 | default: |
2163 | return -EOPNOTSUPP; |
2164 | } |
2165 | |
2166 | return ieee80211_request_scan(sdata, req); |
2167 | } |
2168 | |
2169 | static int |
2170 | ieee80211_sched_scan_start(struct wiphy *wiphy, |
2171 | struct net_device *dev, |
2172 | struct cfg80211_sched_scan_request *req) |
2173 | { |
2174 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2175 | |
2176 | if (!sdata->local->ops->sched_scan_start) |
2177 | return -EOPNOTSUPP; |
2178 | |
2179 | return ieee80211_request_sched_scan_start(sdata, req); |
2180 | } |
2181 | |
2182 | static int |
2183 | ieee80211_sched_scan_stop(struct wiphy *wiphy, struct net_device *dev) |
2184 | { |
2185 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2186 | |
2187 | if (!sdata->local->ops->sched_scan_stop) |
2188 | return -EOPNOTSUPP; |
2189 | |
2190 | return ieee80211_request_sched_scan_stop(sdata); |
2191 | } |
2192 | |
2193 | static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, |
2194 | struct cfg80211_auth_request *req) |
2195 | { |
2196 | return ieee80211_mgd_auth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
2197 | } |
2198 | |
2199 | static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, |
2200 | struct cfg80211_assoc_request *req) |
2201 | { |
2202 | return ieee80211_mgd_assoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
2203 | } |
2204 | |
2205 | static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, |
2206 | struct cfg80211_deauth_request *req) |
2207 | { |
2208 | return ieee80211_mgd_deauth(IEEE80211_DEV_TO_SUB_IF(dev), req); |
2209 | } |
2210 | |
2211 | static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, |
2212 | struct cfg80211_disassoc_request *req) |
2213 | { |
2214 | return ieee80211_mgd_disassoc(IEEE80211_DEV_TO_SUB_IF(dev), req); |
2215 | } |
2216 | |
2217 | static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, |
2218 | struct cfg80211_ibss_params *params) |
2219 | { |
2220 | return ieee80211_ibss_join(IEEE80211_DEV_TO_SUB_IF(dev), params); |
2221 | } |
2222 | |
2223 | static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) |
2224 | { |
2225 | return ieee80211_ibss_leave(IEEE80211_DEV_TO_SUB_IF(dev)); |
2226 | } |
2227 | |
2228 | static int ieee80211_set_mcast_rate(struct wiphy *wiphy, struct net_device *dev, |
2229 | int rate[IEEE80211_NUM_BANDS]) |
2230 | { |
2231 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2232 | |
2233 | memcpy(sdata->vif.bss_conf.mcast_rate, rate, |
2234 | sizeof(int) * IEEE80211_NUM_BANDS); |
2235 | |
2236 | return 0; |
2237 | } |
2238 | |
2239 | static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) |
2240 | { |
2241 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2242 | int err; |
2243 | |
2244 | if (changed & WIPHY_PARAM_FRAG_THRESHOLD) { |
2245 | err = drv_set_frag_threshold(local, wiphy->frag_threshold); |
2246 | |
2247 | if (err) |
2248 | return err; |
2249 | } |
2250 | |
2251 | if (changed & WIPHY_PARAM_COVERAGE_CLASS) { |
2252 | err = drv_set_coverage_class(local, wiphy->coverage_class); |
2253 | |
2254 | if (err) |
2255 | return err; |
2256 | } |
2257 | |
2258 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { |
2259 | err = drv_set_rts_threshold(local, wiphy->rts_threshold); |
2260 | |
2261 | if (err) |
2262 | return err; |
2263 | } |
2264 | |
2265 | if (changed & WIPHY_PARAM_RETRY_SHORT) { |
2266 | if (wiphy->retry_short > IEEE80211_MAX_TX_RETRY) |
2267 | return -EINVAL; |
2268 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; |
2269 | } |
2270 | if (changed & WIPHY_PARAM_RETRY_LONG) { |
2271 | if (wiphy->retry_long > IEEE80211_MAX_TX_RETRY) |
2272 | return -EINVAL; |
2273 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; |
2274 | } |
2275 | if (changed & |
2276 | (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) |
2277 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); |
2278 | |
2279 | return 0; |
2280 | } |
2281 | |
2282 | static int ieee80211_set_tx_power(struct wiphy *wiphy, |
2283 | struct wireless_dev *wdev, |
2284 | enum nl80211_tx_power_setting type, int mbm) |
2285 | { |
2286 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2287 | struct ieee80211_sub_if_data *sdata; |
2288 | |
2289 | if (wdev) { |
2290 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2291 | |
2292 | switch (type) { |
2293 | case NL80211_TX_POWER_AUTOMATIC: |
2294 | sdata->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
2295 | break; |
2296 | case NL80211_TX_POWER_LIMITED: |
2297 | case NL80211_TX_POWER_FIXED: |
2298 | if (mbm < 0 || (mbm % 100)) |
2299 | return -EOPNOTSUPP; |
2300 | sdata->user_power_level = MBM_TO_DBM(mbm); |
2301 | break; |
2302 | } |
2303 | |
2304 | ieee80211_recalc_txpower(sdata); |
2305 | |
2306 | return 0; |
2307 | } |
2308 | |
2309 | switch (type) { |
2310 | case NL80211_TX_POWER_AUTOMATIC: |
2311 | local->user_power_level = IEEE80211_UNSET_POWER_LEVEL; |
2312 | break; |
2313 | case NL80211_TX_POWER_LIMITED: |
2314 | case NL80211_TX_POWER_FIXED: |
2315 | if (mbm < 0 || (mbm % 100)) |
2316 | return -EOPNOTSUPP; |
2317 | local->user_power_level = MBM_TO_DBM(mbm); |
2318 | break; |
2319 | } |
2320 | |
2321 | mutex_lock(&local->iflist_mtx); |
2322 | list_for_each_entry(sdata, &local->interfaces, list) |
2323 | sdata->user_power_level = local->user_power_level; |
2324 | list_for_each_entry(sdata, &local->interfaces, list) |
2325 | ieee80211_recalc_txpower(sdata); |
2326 | mutex_unlock(&local->iflist_mtx); |
2327 | |
2328 | return 0; |
2329 | } |
2330 | |
2331 | static int ieee80211_get_tx_power(struct wiphy *wiphy, |
2332 | struct wireless_dev *wdev, |
2333 | int *dbm) |
2334 | { |
2335 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2336 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2337 | |
2338 | if (!local->use_chanctx) |
2339 | *dbm = local->hw.conf.power_level; |
2340 | else |
2341 | *dbm = sdata->vif.bss_conf.txpower; |
2342 | |
2343 | return 0; |
2344 | } |
2345 | |
2346 | static int ieee80211_set_wds_peer(struct wiphy *wiphy, struct net_device *dev, |
2347 | const u8 *addr) |
2348 | { |
2349 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2350 | |
2351 | memcpy(&sdata->u.wds.remote_addr, addr, ETH_ALEN); |
2352 | |
2353 | return 0; |
2354 | } |
2355 | |
2356 | static void ieee80211_rfkill_poll(struct wiphy *wiphy) |
2357 | { |
2358 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2359 | |
2360 | drv_rfkill_poll(local); |
2361 | } |
2362 | |
2363 | #ifdef CONFIG_NL80211_TESTMODE |
2364 | static int ieee80211_testmode_cmd(struct wiphy *wiphy, |
2365 | struct wireless_dev *wdev, |
2366 | void *data, int len) |
2367 | { |
2368 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2369 | struct ieee80211_vif *vif = NULL; |
2370 | |
2371 | if (!local->ops->testmode_cmd) |
2372 | return -EOPNOTSUPP; |
2373 | |
2374 | if (wdev) { |
2375 | struct ieee80211_sub_if_data *sdata; |
2376 | |
2377 | sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2378 | if (sdata->flags & IEEE80211_SDATA_IN_DRIVER) |
2379 | vif = &sdata->vif; |
2380 | } |
2381 | |
2382 | return local->ops->testmode_cmd(&local->hw, vif, data, len); |
2383 | } |
2384 | |
2385 | static int ieee80211_testmode_dump(struct wiphy *wiphy, |
2386 | struct sk_buff *skb, |
2387 | struct netlink_callback *cb, |
2388 | void *data, int len) |
2389 | { |
2390 | struct ieee80211_local *local = wiphy_priv(wiphy); |
2391 | |
2392 | if (!local->ops->testmode_dump) |
2393 | return -EOPNOTSUPP; |
2394 | |
2395 | return local->ops->testmode_dump(&local->hw, skb, cb, data, len); |
2396 | } |
2397 | #endif |
2398 | |
2399 | int __ieee80211_request_smps_ap(struct ieee80211_sub_if_data *sdata, |
2400 | enum ieee80211_smps_mode smps_mode) |
2401 | { |
2402 | struct sta_info *sta; |
2403 | enum ieee80211_smps_mode old_req; |
2404 | int i; |
2405 | |
2406 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_AP)) |
2407 | return -EINVAL; |
2408 | |
2409 | if (sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
2410 | return 0; |
2411 | |
2412 | old_req = sdata->u.ap.req_smps; |
2413 | sdata->u.ap.req_smps = smps_mode; |
2414 | |
2415 | /* AUTOMATIC doesn't mean much for AP - don't allow it */ |
2416 | if (old_req == smps_mode || |
2417 | smps_mode == IEEE80211_SMPS_AUTOMATIC) |
2418 | return 0; |
2419 | |
2420 | /* If no associated stations, there's no need to do anything */ |
2421 | if (!atomic_read(&sdata->u.ap.num_mcast_sta)) { |
2422 | sdata->smps_mode = smps_mode; |
2423 | ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
2424 | return 0; |
2425 | } |
2426 | |
2427 | ht_dbg(sdata, |
2428 | "SMSP %d requested in AP mode, sending Action frame to %d stations\n", |
2429 | smps_mode, atomic_read(&sdata->u.ap.num_mcast_sta)); |
2430 | |
2431 | mutex_lock(&sdata->local->sta_mtx); |
2432 | for (i = 0; i < STA_HASH_SIZE; i++) { |
2433 | for (sta = rcu_dereference_protected(sdata->local->sta_hash[i], |
2434 | lockdep_is_held(&sdata->local->sta_mtx)); |
2435 | sta; |
2436 | sta = rcu_dereference_protected(sta->hnext, |
2437 | lockdep_is_held(&sdata->local->sta_mtx))) { |
2438 | /* |
2439 | * Only stations associated to our AP and |
2440 | * associated VLANs |
2441 | */ |
2442 | if (sta->sdata->bss != &sdata->u.ap) |
2443 | continue; |
2444 | |
2445 | /* This station doesn't support MIMO - skip it */ |
2446 | if (sta_info_tx_streams(sta) == 1) |
2447 | continue; |
2448 | |
2449 | /* |
2450 | * Don't wake up a STA just to send the action frame |
2451 | * unless we are getting more restrictive. |
2452 | */ |
2453 | if (test_sta_flag(sta, WLAN_STA_PS_STA) && |
2454 | !ieee80211_smps_is_restrictive(sta->known_smps_mode, |
2455 | smps_mode)) { |
2456 | ht_dbg(sdata, |
2457 | "Won't send SMPS to sleeping STA %pM\n", |
2458 | sta->sta.addr); |
2459 | continue; |
2460 | } |
2461 | |
2462 | /* |
2463 | * If the STA is not authorized, wait until it gets |
2464 | * authorized and the action frame will be sent then. |
2465 | */ |
2466 | if (!test_sta_flag(sta, WLAN_STA_AUTHORIZED)) |
2467 | continue; |
2468 | |
2469 | ht_dbg(sdata, "Sending SMPS to %pM\n", sta->sta.addr); |
2470 | ieee80211_send_smps_action(sdata, smps_mode, |
2471 | sta->sta.addr, |
2472 | sdata->vif.bss_conf.bssid); |
2473 | } |
2474 | } |
2475 | mutex_unlock(&sdata->local->sta_mtx); |
2476 | |
2477 | sdata->smps_mode = smps_mode; |
2478 | ieee80211_queue_work(&sdata->local->hw, &sdata->recalc_smps); |
2479 | |
2480 | return 0; |
2481 | } |
2482 | |
2483 | int __ieee80211_request_smps_mgd(struct ieee80211_sub_if_data *sdata, |
2484 | enum ieee80211_smps_mode smps_mode) |
2485 | { |
2486 | const u8 *ap; |
2487 | enum ieee80211_smps_mode old_req; |
2488 | int err; |
2489 | |
2490 | lockdep_assert_held(&sdata->wdev.mtx); |
2491 | |
2492 | if (WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION)) |
2493 | return -EINVAL; |
2494 | |
2495 | old_req = sdata->u.mgd.req_smps; |
2496 | sdata->u.mgd.req_smps = smps_mode; |
2497 | |
2498 | if (old_req == smps_mode && |
2499 | smps_mode != IEEE80211_SMPS_AUTOMATIC) |
2500 | return 0; |
2501 | |
2502 | /* |
2503 | * If not associated, or current association is not an HT |
2504 | * association, there's no need to do anything, just store |
2505 | * the new value until we associate. |
2506 | */ |
2507 | if (!sdata->u.mgd.associated || |
2508 | sdata->vif.bss_conf.chandef.width == NL80211_CHAN_WIDTH_20_NOHT) |
2509 | return 0; |
2510 | |
2511 | ap = sdata->u.mgd.associated->bssid; |
2512 | |
2513 | if (smps_mode == IEEE80211_SMPS_AUTOMATIC) { |
2514 | if (sdata->u.mgd.powersave) |
2515 | smps_mode = IEEE80211_SMPS_DYNAMIC; |
2516 | else |
2517 | smps_mode = IEEE80211_SMPS_OFF; |
2518 | } |
2519 | |
2520 | /* send SM PS frame to AP */ |
2521 | err = ieee80211_send_smps_action(sdata, smps_mode, |
2522 | ap, ap); |
2523 | if (err) |
2524 | sdata->u.mgd.req_smps = old_req; |
2525 | |
2526 | return err; |
2527 | } |
2528 | |
2529 | static int ieee80211_set_power_mgmt(struct wiphy *wiphy, struct net_device *dev, |
2530 | bool enabled, int timeout) |
2531 | { |
2532 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2533 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
2534 | |
2535 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
2536 | return -EOPNOTSUPP; |
2537 | |
2538 | if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) |
2539 | return -EOPNOTSUPP; |
2540 | |
2541 | if (enabled == sdata->u.mgd.powersave && |
2542 | timeout == local->dynamic_ps_forced_timeout) |
2543 | return 0; |
2544 | |
2545 | sdata->u.mgd.powersave = enabled; |
2546 | local->dynamic_ps_forced_timeout = timeout; |
2547 | |
2548 | /* no change, but if automatic follow powersave */ |
2549 | sdata_lock(sdata); |
2550 | __ieee80211_request_smps_mgd(sdata, sdata->u.mgd.req_smps); |
2551 | sdata_unlock(sdata); |
2552 | |
2553 | if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS) |
2554 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS); |
2555 | |
2556 | ieee80211_recalc_ps(local, -1); |
2557 | ieee80211_recalc_ps_vif(sdata); |
2558 | |
2559 | return 0; |
2560 | } |
2561 | |
2562 | static int ieee80211_set_cqm_rssi_config(struct wiphy *wiphy, |
2563 | struct net_device *dev, |
2564 | s32 rssi_thold, u32 rssi_hyst) |
2565 | { |
2566 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2567 | struct ieee80211_vif *vif = &sdata->vif; |
2568 | struct ieee80211_bss_conf *bss_conf = &vif->bss_conf; |
2569 | |
2570 | if (rssi_thold == bss_conf->cqm_rssi_thold && |
2571 | rssi_hyst == bss_conf->cqm_rssi_hyst) |
2572 | return 0; |
2573 | |
2574 | bss_conf->cqm_rssi_thold = rssi_thold; |
2575 | bss_conf->cqm_rssi_hyst = rssi_hyst; |
2576 | |
2577 | /* tell the driver upon association, unless already associated */ |
2578 | if (sdata->u.mgd.associated && |
2579 | sdata->vif.driver_flags & IEEE80211_VIF_SUPPORTS_CQM_RSSI) |
2580 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_CQM); |
2581 | |
2582 | return 0; |
2583 | } |
2584 | |
2585 | static int ieee80211_set_bitrate_mask(struct wiphy *wiphy, |
2586 | struct net_device *dev, |
2587 | const u8 *addr, |
2588 | const struct cfg80211_bitrate_mask *mask) |
2589 | { |
2590 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2591 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); |
2592 | int i, ret; |
2593 | |
2594 | if (!ieee80211_sdata_running(sdata)) |
2595 | return -ENETDOWN; |
2596 | |
2597 | if (local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL) { |
2598 | ret = drv_set_bitrate_mask(local, sdata, mask); |
2599 | if (ret) |
2600 | return ret; |
2601 | } |
2602 | |
2603 | for (i = 0; i < IEEE80211_NUM_BANDS; i++) { |
2604 | struct ieee80211_supported_band *sband = wiphy->bands[i]; |
2605 | int j; |
2606 | |
2607 | sdata->rc_rateidx_mask[i] = mask->control[i].legacy; |
2608 | memcpy(sdata->rc_rateidx_mcs_mask[i], mask->control[i].ht_mcs, |
2609 | sizeof(mask->control[i].ht_mcs)); |
2610 | |
2611 | sdata->rc_has_mcs_mask[i] = false; |
2612 | if (!sband) |
2613 | continue; |
2614 | |
2615 | for (j = 0; j < IEEE80211_HT_MCS_MASK_LEN; j++) |
2616 | if (~sdata->rc_rateidx_mcs_mask[i][j]) { |
2617 | sdata->rc_has_mcs_mask[i] = true; |
2618 | break; |
2619 | } |
2620 | } |
2621 | |
2622 | return 0; |
2623 | } |
2624 | |
2625 | static int ieee80211_start_roc_work(struct ieee80211_local *local, |
2626 | struct ieee80211_sub_if_data *sdata, |
2627 | struct ieee80211_channel *channel, |
2628 | unsigned int duration, u64 *cookie, |
2629 | struct sk_buff *txskb, |
2630 | enum ieee80211_roc_type type) |
2631 | { |
2632 | struct ieee80211_roc_work *roc, *tmp; |
2633 | bool queued = false; |
2634 | int ret; |
2635 | |
2636 | lockdep_assert_held(&local->mtx); |
2637 | |
2638 | if (local->use_chanctx && !local->ops->remain_on_channel) |
2639 | return -EOPNOTSUPP; |
2640 | |
2641 | roc = kzalloc(sizeof(*roc), GFP_KERNEL); |
2642 | if (!roc) |
2643 | return -ENOMEM; |
2644 | |
2645 | /* |
2646 | * If the duration is zero, then the driver |
2647 | * wouldn't actually do anything. Set it to |
2648 | * 10 for now. |
2649 | * |
2650 | * TODO: cancel the off-channel operation |
2651 | * when we get the SKB's TX status and |
2652 | * the wait time was zero before. |
2653 | */ |
2654 | if (!duration) |
2655 | duration = 10; |
2656 | |
2657 | roc->chan = channel; |
2658 | roc->duration = duration; |
2659 | roc->req_duration = duration; |
2660 | roc->frame = txskb; |
2661 | roc->type = type; |
2662 | roc->mgmt_tx_cookie = (unsigned long)txskb; |
2663 | roc->sdata = sdata; |
2664 | INIT_DELAYED_WORK(&roc->work, ieee80211_sw_roc_work); |
2665 | INIT_LIST_HEAD(&roc->dependents); |
2666 | |
2667 | /* |
2668 | * cookie is either the roc cookie (for normal roc) |
2669 | * or the SKB (for mgmt TX) |
2670 | */ |
2671 | if (!txskb) { |
2672 | /* local->mtx protects this */ |
2673 | local->roc_cookie_counter++; |
2674 | roc->cookie = local->roc_cookie_counter; |
2675 | /* wow, you wrapped 64 bits ... more likely a bug */ |
2676 | if (WARN_ON(roc->cookie == 0)) { |
2677 | roc->cookie = 1; |
2678 | local->roc_cookie_counter++; |
2679 | } |
2680 | *cookie = roc->cookie; |
2681 | } else { |
2682 | *cookie = (unsigned long)txskb; |
2683 | } |
2684 | |
2685 | /* if there's one pending or we're scanning, queue this one */ |
2686 | if (!list_empty(&local->roc_list) || |
2687 | local->scanning || local->radar_detect_enabled) |
2688 | goto out_check_combine; |
2689 | |
2690 | /* if not HW assist, just queue & schedule work */ |
2691 | if (!local->ops->remain_on_channel) { |
2692 | ieee80211_queue_delayed_work(&local->hw, &roc->work, 0); |
2693 | goto out_queue; |
2694 | } |
2695 | |
2696 | /* otherwise actually kick it off here (for error handling) */ |
2697 | |
2698 | ret = drv_remain_on_channel(local, sdata, channel, duration, type); |
2699 | if (ret) { |
2700 | kfree(roc); |
2701 | return ret; |
2702 | } |
2703 | |
2704 | roc->started = true; |
2705 | goto out_queue; |
2706 | |
2707 | out_check_combine: |
2708 | list_for_each_entry(tmp, &local->roc_list, list) { |
2709 | if (tmp->chan != channel || tmp->sdata != sdata) |
2710 | continue; |
2711 | |
2712 | /* |
2713 | * Extend this ROC if possible: |
2714 | * |
2715 | * If it hasn't started yet, just increase the duration |
2716 | * and add the new one to the list of dependents. |
2717 | * If the type of the new ROC has higher priority, modify the |
2718 | * type of the previous one to match that of the new one. |
2719 | */ |
2720 | if (!tmp->started) { |
2721 | list_add_tail(&roc->list, &tmp->dependents); |
2722 | tmp->duration = max(tmp->duration, roc->duration); |
2723 | tmp->type = max(tmp->type, roc->type); |
2724 | queued = true; |
2725 | break; |
2726 | } |
2727 | |
2728 | /* If it has already started, it's more difficult ... */ |
2729 | if (local->ops->remain_on_channel) { |
2730 | unsigned long j = jiffies; |
2731 | |
2732 | /* |
2733 | * In the offloaded ROC case, if it hasn't begun, add |
2734 | * this new one to the dependent list to be handled |
2735 | * when the master one begins. If it has begun, |
2736 | * check that there's still a minimum time left and |
2737 | * if so, start this one, transmitting the frame, but |
2738 | * add it to the list directly after this one with |
2739 | * a reduced time so we'll ask the driver to execute |
2740 | * it right after finishing the previous one, in the |
2741 | * hope that it'll also be executed right afterwards, |
2742 | * effectively extending the old one. |
2743 | * If there's no minimum time left, just add it to the |
2744 | * normal list. |
2745 | * TODO: the ROC type is ignored here, assuming that it |
2746 | * is better to immediately use the current ROC. |
2747 | */ |
2748 | if (!tmp->hw_begun) { |
2749 | list_add_tail(&roc->list, &tmp->dependents); |
2750 | queued = true; |
2751 | break; |
2752 | } |
2753 | |
2754 | if (time_before(j + IEEE80211_ROC_MIN_LEFT, |
2755 | tmp->hw_start_time + |
2756 | msecs_to_jiffies(tmp->duration))) { |
2757 | int new_dur; |
2758 | |
2759 | ieee80211_handle_roc_started(roc); |
2760 | |
2761 | new_dur = roc->duration - |
2762 | jiffies_to_msecs(tmp->hw_start_time + |
2763 | msecs_to_jiffies( |
2764 | tmp->duration) - |
2765 | j); |
2766 | |
2767 | if (new_dur > 0) { |
2768 | /* add right after tmp */ |
2769 | list_add(&roc->list, &tmp->list); |
2770 | } else { |
2771 | list_add_tail(&roc->list, |
2772 | &tmp->dependents); |
2773 | } |
2774 | queued = true; |
2775 | } |
2776 | } else if (del_timer_sync(&tmp->work.timer)) { |
2777 | unsigned long new_end; |
2778 | |
2779 | /* |
2780 | * In the software ROC case, cancel the timer, if |
2781 | * that fails then the finish work is already |
2782 | * queued/pending and thus we queue the new ROC |
2783 | * normally, if that succeeds then we can extend |
2784 | * the timer duration and TX the frame (if any.) |
2785 | */ |
2786 | |
2787 | list_add_tail(&roc->list, &tmp->dependents); |
2788 | queued = true; |
2789 | |
2790 | new_end = jiffies + msecs_to_jiffies(roc->duration); |
2791 | |
2792 | /* ok, it was started & we canceled timer */ |
2793 | if (time_after(new_end, tmp->work.timer.expires)) |
2794 | mod_timer(&tmp->work.timer, new_end); |
2795 | else |
2796 | add_timer(&tmp->work.timer); |
2797 | |
2798 | ieee80211_handle_roc_started(roc); |
2799 | } |
2800 | break; |
2801 | } |
2802 | |
2803 | out_queue: |
2804 | if (!queued) |
2805 | list_add_tail(&roc->list, &local->roc_list); |
2806 | |
2807 | return 0; |
2808 | } |
2809 | |
2810 | static int ieee80211_remain_on_channel(struct wiphy *wiphy, |
2811 | struct wireless_dev *wdev, |
2812 | struct ieee80211_channel *chan, |
2813 | unsigned int duration, |
2814 | u64 *cookie) |
2815 | { |
2816 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2817 | struct ieee80211_local *local = sdata->local; |
2818 | int ret; |
2819 | |
2820 | mutex_lock(&local->mtx); |
2821 | ret = ieee80211_start_roc_work(local, sdata, chan, |
2822 | duration, cookie, NULL, |
2823 | IEEE80211_ROC_TYPE_NORMAL); |
2824 | mutex_unlock(&local->mtx); |
2825 | |
2826 | return ret; |
2827 | } |
2828 | |
2829 | static int ieee80211_cancel_roc(struct ieee80211_local *local, |
2830 | u64 cookie, bool mgmt_tx) |
2831 | { |
2832 | struct ieee80211_roc_work *roc, *tmp, *found = NULL; |
2833 | int ret; |
2834 | |
2835 | mutex_lock(&local->mtx); |
2836 | list_for_each_entry_safe(roc, tmp, &local->roc_list, list) { |
2837 | struct ieee80211_roc_work *dep, *tmp2; |
2838 | |
2839 | list_for_each_entry_safe(dep, tmp2, &roc->dependents, list) { |
2840 | if (!mgmt_tx && dep->cookie != cookie) |
2841 | continue; |
2842 | else if (mgmt_tx && dep->mgmt_tx_cookie != cookie) |
2843 | continue; |
2844 | /* found dependent item -- just remove it */ |
2845 | list_del(&dep->list); |
2846 | mutex_unlock(&local->mtx); |
2847 | |
2848 | ieee80211_roc_notify_destroy(dep, true); |
2849 | return 0; |
2850 | } |
2851 | |
2852 | if (!mgmt_tx && roc->cookie != cookie) |
2853 | continue; |
2854 | else if (mgmt_tx && roc->mgmt_tx_cookie != cookie) |
2855 | continue; |
2856 | |
2857 | found = roc; |
2858 | break; |
2859 | } |
2860 | |
2861 | if (!found) { |
2862 | mutex_unlock(&local->mtx); |
2863 | return -ENOENT; |
2864 | } |
2865 | |
2866 | /* |
2867 | * We found the item to cancel, so do that. Note that it |
2868 | * may have dependents, which we also cancel (and send |
2869 | * the expired signal for.) Not doing so would be quite |
2870 | * tricky here, but we may need to fix it later. |
2871 | */ |
2872 | |
2873 | if (local->ops->remain_on_channel) { |
2874 | if (found->started) { |
2875 | ret = drv_cancel_remain_on_channel(local); |
2876 | if (WARN_ON_ONCE(ret)) { |
2877 | mutex_unlock(&local->mtx); |
2878 | return ret; |
2879 | } |
2880 | } |
2881 | |
2882 | list_del(&found->list); |
2883 | |
2884 | if (found->started) |
2885 | ieee80211_start_next_roc(local); |
2886 | mutex_unlock(&local->mtx); |
2887 | |
2888 | ieee80211_roc_notify_destroy(found, true); |
2889 | } else { |
2890 | /* work may be pending so use it all the time */ |
2891 | found->abort = true; |
2892 | ieee80211_queue_delayed_work(&local->hw, &found->work, 0); |
2893 | |
2894 | mutex_unlock(&local->mtx); |
2895 | |
2896 | /* work will clean up etc */ |
2897 | flush_delayed_work(&found->work); |
2898 | WARN_ON(!found->to_be_freed); |
2899 | kfree(found); |
2900 | } |
2901 | |
2902 | return 0; |
2903 | } |
2904 | |
2905 | static int ieee80211_cancel_remain_on_channel(struct wiphy *wiphy, |
2906 | struct wireless_dev *wdev, |
2907 | u64 cookie) |
2908 | { |
2909 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
2910 | struct ieee80211_local *local = sdata->local; |
2911 | |
2912 | return ieee80211_cancel_roc(local, cookie, false); |
2913 | } |
2914 | |
2915 | static int ieee80211_start_radar_detection(struct wiphy *wiphy, |
2916 | struct net_device *dev, |
2917 | struct cfg80211_chan_def *chandef, |
2918 | u32 cac_time_ms) |
2919 | { |
2920 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
2921 | struct ieee80211_local *local = sdata->local; |
2922 | int err; |
2923 | |
2924 | mutex_lock(&local->mtx); |
2925 | if (!list_empty(&local->roc_list) || local->scanning) { |
2926 | err = -EBUSY; |
2927 | goto out_unlock; |
2928 | } |
2929 | |
2930 | /* whatever, but channel contexts should not complain about that one */ |
2931 | sdata->smps_mode = IEEE80211_SMPS_OFF; |
2932 | sdata->needed_rx_chains = local->rx_chains; |
2933 | sdata->radar_required = true; |
2934 | |
2935 | err = ieee80211_vif_use_channel(sdata, chandef, |
2936 | IEEE80211_CHANCTX_SHARED); |
2937 | if (err) |
2938 | goto out_unlock; |
2939 | |
2940 | ieee80211_queue_delayed_work(&sdata->local->hw, |
2941 | &sdata->dfs_cac_timer_work, |
2942 | msecs_to_jiffies(cac_time_ms)); |
2943 | |
2944 | out_unlock: |
2945 | mutex_unlock(&local->mtx); |
2946 | return err; |
2947 | } |
2948 | |
2949 | static struct cfg80211_beacon_data * |
2950 | cfg80211_beacon_dup(struct cfg80211_beacon_data *beacon) |
2951 | { |
2952 | struct cfg80211_beacon_data *new_beacon; |
2953 | u8 *pos; |
2954 | int len; |
2955 | |
2956 | len = beacon->head_len + beacon->tail_len + beacon->beacon_ies_len + |
2957 | beacon->proberesp_ies_len + beacon->assocresp_ies_len + |
2958 | beacon->probe_resp_len; |
2959 | |
2960 | new_beacon = kzalloc(sizeof(*new_beacon) + len, GFP_KERNEL); |
2961 | if (!new_beacon) |
2962 | return NULL; |
2963 | |
2964 | pos = (u8 *)(new_beacon + 1); |
2965 | if (beacon->head_len) { |
2966 | new_beacon->head_len = beacon->head_len; |
2967 | new_beacon->head = pos; |
2968 | memcpy(pos, beacon->head, beacon->head_len); |
2969 | pos += beacon->head_len; |
2970 | } |
2971 | if (beacon->tail_len) { |
2972 | new_beacon->tail_len = beacon->tail_len; |
2973 | new_beacon->tail = pos; |
2974 | memcpy(pos, beacon->tail, beacon->tail_len); |
2975 | pos += beacon->tail_len; |
2976 | } |
2977 | if (beacon->beacon_ies_len) { |
2978 | new_beacon->beacon_ies_len = beacon->beacon_ies_len; |
2979 | new_beacon->beacon_ies = pos; |
2980 | memcpy(pos, beacon->beacon_ies, beacon->beacon_ies_len); |
2981 | pos += beacon->beacon_ies_len; |
2982 | } |
2983 | if (beacon->proberesp_ies_len) { |
2984 | new_beacon->proberesp_ies_len = beacon->proberesp_ies_len; |
2985 | new_beacon->proberesp_ies = pos; |
2986 | memcpy(pos, beacon->proberesp_ies, beacon->proberesp_ies_len); |
2987 | pos += beacon->proberesp_ies_len; |
2988 | } |
2989 | if (beacon->assocresp_ies_len) { |
2990 | new_beacon->assocresp_ies_len = beacon->assocresp_ies_len; |
2991 | new_beacon->assocresp_ies = pos; |
2992 | memcpy(pos, beacon->assocresp_ies, beacon->assocresp_ies_len); |
2993 | pos += beacon->assocresp_ies_len; |
2994 | } |
2995 | if (beacon->probe_resp_len) { |
2996 | new_beacon->probe_resp_len = beacon->probe_resp_len; |
2997 | beacon->probe_resp = pos; |
2998 | memcpy(pos, beacon->probe_resp, beacon->probe_resp_len); |
2999 | pos += beacon->probe_resp_len; |
3000 | } |
3001 | |
3002 | return new_beacon; |
3003 | } |
3004 | |
3005 | void ieee80211_csa_finish(struct ieee80211_vif *vif) |
3006 | { |
3007 | struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif); |
3008 | |
3009 | ieee80211_queue_work(&sdata->local->hw, |
3010 | &sdata->csa_finalize_work); |
3011 | } |
3012 | EXPORT_SYMBOL(ieee80211_csa_finish); |
3013 | |
3014 | static void ieee80211_csa_finalize(struct ieee80211_sub_if_data *sdata) |
3015 | { |
3016 | struct ieee80211_local *local = sdata->local; |
3017 | int err, changed = 0; |
3018 | |
3019 | sdata_assert_lock(sdata); |
3020 | |
3021 | mutex_lock(&local->mtx); |
3022 | sdata->radar_required = sdata->csa_radar_required; |
3023 | err = ieee80211_vif_change_channel(sdata, &changed); |
3024 | mutex_unlock(&local->mtx); |
3025 | if (WARN_ON(err < 0)) |
3026 | return; |
3027 | |
3028 | if (!local->use_chanctx) { |
3029 | local->_oper_chandef = sdata->csa_chandef; |
3030 | ieee80211_hw_config(local, 0); |
3031 | } |
3032 | |
3033 | sdata->vif.csa_active = false; |
3034 | switch (sdata->vif.type) { |
3035 | case NL80211_IFTYPE_AP: |
3036 | err = ieee80211_assign_beacon(sdata, sdata->u.ap.next_beacon); |
3037 | kfree(sdata->u.ap.next_beacon); |
3038 | sdata->u.ap.next_beacon = NULL; |
3039 | |
3040 | if (err < 0) |
3041 | return; |
3042 | changed |= err; |
3043 | break; |
3044 | case NL80211_IFTYPE_ADHOC: |
3045 | err = ieee80211_ibss_finish_csa(sdata); |
3046 | if (err < 0) |
3047 | return; |
3048 | changed |= err; |
3049 | break; |
3050 | #ifdef CONFIG_MAC80211_MESH |
3051 | case NL80211_IFTYPE_MESH_POINT: |
3052 | err = ieee80211_mesh_finish_csa(sdata); |
3053 | if (err < 0) |
3054 | return; |
3055 | changed |= err; |
3056 | break; |
3057 | #endif |
3058 | default: |
3059 | WARN_ON(1); |
3060 | return; |
3061 | } |
3062 | |
3063 | ieee80211_bss_info_change_notify(sdata, changed); |
3064 | |
3065 | ieee80211_wake_queues_by_reason(&sdata->local->hw, |
3066 | IEEE80211_MAX_QUEUE_MAP, |
3067 | IEEE80211_QUEUE_STOP_REASON_CSA); |
3068 | |
3069 | cfg80211_ch_switch_notify(sdata->dev, &sdata->csa_chandef); |
3070 | } |
3071 | |
3072 | void ieee80211_csa_finalize_work(struct work_struct *work) |
3073 | { |
3074 | struct ieee80211_sub_if_data *sdata = |
3075 | container_of(work, struct ieee80211_sub_if_data, |
3076 | csa_finalize_work); |
3077 | |
3078 | sdata_lock(sdata); |
3079 | /* AP might have been stopped while waiting for the lock. */ |
3080 | if (!sdata->vif.csa_active) |
3081 | goto unlock; |
3082 | |
3083 | if (!ieee80211_sdata_running(sdata)) |
3084 | goto unlock; |
3085 | |
3086 | ieee80211_csa_finalize(sdata); |
3087 | |
3088 | unlock: |
3089 | sdata_unlock(sdata); |
3090 | } |
3091 | |
3092 | static int ieee80211_set_csa_beacon(struct ieee80211_sub_if_data *sdata, |
3093 | struct cfg80211_csa_settings *params, |
3094 | u32 *changed) |
3095 | { |
3096 | int err; |
3097 | |
3098 | switch (sdata->vif.type) { |
3099 | case NL80211_IFTYPE_AP: |
3100 | sdata->u.ap.next_beacon = |
3101 | cfg80211_beacon_dup(¶ms->beacon_after); |
3102 | if (!sdata->u.ap.next_beacon) |
3103 | return -ENOMEM; |
3104 | |
3105 | /* |
3106 | * With a count of 0, we don't have to wait for any |
3107 | * TBTT before switching, so complete the CSA |
3108 | * immediately. In theory, with a count == 1 we |
3109 | * should delay the switch until just before the next |
3110 | * TBTT, but that would complicate things so we switch |
3111 | * immediately too. If we would delay the switch |
3112 | * until the next TBTT, we would have to set the probe |
3113 | * response here. |
3114 | * |
3115 | * TODO: A channel switch with count <= 1 without |
3116 | * sending a CSA action frame is kind of useless, |
3117 | * because the clients won't know we're changing |
3118 | * channels. The action frame must be implemented |
3119 | * either here or in the userspace. |
3120 | */ |
3121 | if (params->count <= 1) |
3122 | break; |
3123 | |
3124 | sdata->csa_counter_offset_beacon = |
3125 | params->counter_offset_beacon; |
3126 | sdata->csa_counter_offset_presp = params->counter_offset_presp; |
3127 | err = ieee80211_assign_beacon(sdata, ¶ms->beacon_csa); |
3128 | if (err < 0) { |
3129 | kfree(sdata->u.ap.next_beacon); |
3130 | return err; |
3131 | } |
3132 | *changed |= err; |
3133 | |
3134 | break; |
3135 | case NL80211_IFTYPE_ADHOC: |
3136 | if (!sdata->vif.bss_conf.ibss_joined) |
3137 | return -EINVAL; |
3138 | |
3139 | if (params->chandef.width != sdata->u.ibss.chandef.width) |
3140 | return -EINVAL; |
3141 | |
3142 | switch (params->chandef.width) { |
3143 | case NL80211_CHAN_WIDTH_40: |
3144 | if (cfg80211_get_chandef_type(¶ms->chandef) != |
3145 | cfg80211_get_chandef_type(&sdata->u.ibss.chandef)) |
3146 | return -EINVAL; |
3147 | case NL80211_CHAN_WIDTH_5: |
3148 | case NL80211_CHAN_WIDTH_10: |
3149 | case NL80211_CHAN_WIDTH_20_NOHT: |
3150 | case NL80211_CHAN_WIDTH_20: |
3151 | break; |
3152 | default: |
3153 | return -EINVAL; |
3154 | } |
3155 | |
3156 | /* changes into another band are not supported */ |
3157 | if (sdata->u.ibss.chandef.chan->band != |
3158 | params->chandef.chan->band) |
3159 | return -EINVAL; |
3160 | |
3161 | /* see comments in the NL80211_IFTYPE_AP block */ |
3162 | if (params->count > 1) { |
3163 | err = ieee80211_ibss_csa_beacon(sdata, params); |
3164 | if (err < 0) |
3165 | return err; |
3166 | *changed |= err; |
3167 | } |
3168 | |
3169 | ieee80211_send_action_csa(sdata, params); |
3170 | |
3171 | break; |
3172 | #ifdef CONFIG_MAC80211_MESH |
3173 | case NL80211_IFTYPE_MESH_POINT: { |
3174 | struct ieee80211_if_mesh *ifmsh = &sdata->u.mesh; |
3175 | |
3176 | if (params->chandef.width != sdata->vif.bss_conf.chandef.width) |
3177 | return -EINVAL; |
3178 | |
3179 | /* changes into another band are not supported */ |
3180 | if (sdata->vif.bss_conf.chandef.chan->band != |
3181 | params->chandef.chan->band) |
3182 | return -EINVAL; |
3183 | |
3184 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_NONE) { |
3185 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_INIT; |
3186 | if (!ifmsh->pre_value) |
3187 | ifmsh->pre_value = 1; |
3188 | else |
3189 | ifmsh->pre_value++; |
3190 | } |
3191 | |
3192 | /* see comments in the NL80211_IFTYPE_AP block */ |
3193 | if (params->count > 1) { |
3194 | err = ieee80211_mesh_csa_beacon(sdata, params); |
3195 | if (err < 0) { |
3196 | ifmsh->csa_role = IEEE80211_MESH_CSA_ROLE_NONE; |
3197 | return err; |
3198 | } |
3199 | *changed |= err; |
3200 | } |
3201 | |
3202 | if (ifmsh->csa_role == IEEE80211_MESH_CSA_ROLE_INIT) |
3203 | ieee80211_send_action_csa(sdata, params); |
3204 | |
3205 | break; |
3206 | } |
3207 | #endif |
3208 | default: |
3209 | return -EOPNOTSUPP; |
3210 | } |
3211 | |
3212 | return 0; |
3213 | } |
3214 | |
3215 | int ieee80211_channel_switch(struct wiphy *wiphy, struct net_device *dev, |
3216 | struct cfg80211_csa_settings *params) |
3217 | { |
3218 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3219 | struct ieee80211_local *local = sdata->local; |
3220 | struct ieee80211_chanctx_conf *chanctx_conf; |
3221 | struct ieee80211_chanctx *chanctx; |
3222 | int err, num_chanctx, changed = 0; |
3223 | |
3224 | sdata_assert_lock(sdata); |
3225 | |
3226 | if (!list_empty(&local->roc_list) || local->scanning) |
3227 | return -EBUSY; |
3228 | |
3229 | if (sdata->wdev.cac_started) |
3230 | return -EBUSY; |
3231 | |
3232 | if (cfg80211_chandef_identical(¶ms->chandef, |
3233 | &sdata->vif.bss_conf.chandef)) |
3234 | return -EINVAL; |
3235 | |
3236 | rcu_read_lock(); |
3237 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
3238 | if (!chanctx_conf) { |
3239 | rcu_read_unlock(); |
3240 | return -EBUSY; |
3241 | } |
3242 | |
3243 | /* don't handle for multi-VIF cases */ |
3244 | chanctx = container_of(chanctx_conf, struct ieee80211_chanctx, conf); |
3245 | if (chanctx->refcount > 1) { |
3246 | rcu_read_unlock(); |
3247 | return -EBUSY; |
3248 | } |
3249 | num_chanctx = 0; |
3250 | list_for_each_entry_rcu(chanctx, &local->chanctx_list, list) |
3251 | num_chanctx++; |
3252 | rcu_read_unlock(); |
3253 | |
3254 | if (num_chanctx > 1) |
3255 | return -EBUSY; |
3256 | |
3257 | /* don't allow another channel switch if one is already active. */ |
3258 | if (sdata->vif.csa_active) |
3259 | return -EBUSY; |
3260 | |
3261 | err = ieee80211_set_csa_beacon(sdata, params, &changed); |
3262 | if (err) |
3263 | return err; |
3264 | |
3265 | sdata->csa_radar_required = params->radar_required; |
3266 | |
3267 | if (params->block_tx) |
3268 | ieee80211_stop_queues_by_reason(&local->hw, |
3269 | IEEE80211_MAX_QUEUE_MAP, |
3270 | IEEE80211_QUEUE_STOP_REASON_CSA); |
3271 | |
3272 | sdata->csa_chandef = params->chandef; |
3273 | sdata->vif.csa_active = true; |
3274 | |
3275 | if (changed) { |
3276 | ieee80211_bss_info_change_notify(sdata, changed); |
3277 | drv_channel_switch_beacon(sdata, ¶ms->chandef); |
3278 | } else { |
3279 | /* if the beacon didn't change, we can finalize immediately */ |
3280 | ieee80211_csa_finalize(sdata); |
3281 | } |
3282 | |
3283 | return 0; |
3284 | } |
3285 | |
3286 | static int ieee80211_mgmt_tx(struct wiphy *wiphy, struct wireless_dev *wdev, |
3287 | struct cfg80211_mgmt_tx_params *params, |
3288 | u64 *cookie) |
3289 | { |
3290 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
3291 | struct ieee80211_local *local = sdata->local; |
3292 | struct sk_buff *skb; |
3293 | struct sta_info *sta; |
3294 | const struct ieee80211_mgmt *mgmt = (void *)params->buf; |
3295 | bool need_offchan = false; |
3296 | u32 flags; |
3297 | int ret; |
3298 | |
3299 | if (params->dont_wait_for_ack) |
3300 | flags = IEEE80211_TX_CTL_NO_ACK; |
3301 | else |
3302 | flags = IEEE80211_TX_INTFL_NL80211_FRAME_TX | |
3303 | IEEE80211_TX_CTL_REQ_TX_STATUS; |
3304 | |
3305 | if (params->no_cck) |
3306 | flags |= IEEE80211_TX_CTL_NO_CCK_RATE; |
3307 | |
3308 | switch (sdata->vif.type) { |
3309 | case NL80211_IFTYPE_ADHOC: |
3310 | if (!sdata->vif.bss_conf.ibss_joined) |
3311 | need_offchan = true; |
3312 | /* fall through */ |
3313 | #ifdef CONFIG_MAC80211_MESH |
3314 | case NL80211_IFTYPE_MESH_POINT: |
3315 | if (ieee80211_vif_is_mesh(&sdata->vif) && |
3316 | !sdata->u.mesh.mesh_id_len) |
3317 | need_offchan = true; |
3318 | /* fall through */ |
3319 | #endif |
3320 | case NL80211_IFTYPE_AP: |
3321 | case NL80211_IFTYPE_AP_VLAN: |
3322 | case NL80211_IFTYPE_P2P_GO: |
3323 | if (sdata->vif.type != NL80211_IFTYPE_ADHOC && |
3324 | !ieee80211_vif_is_mesh(&sdata->vif) && |
3325 | !rcu_access_pointer(sdata->bss->beacon)) |
3326 | need_offchan = true; |
3327 | if (!ieee80211_is_action(mgmt->frame_control) || |
3328 | mgmt->u.action.category == WLAN_CATEGORY_PUBLIC || |
3329 | mgmt->u.action.category == WLAN_CATEGORY_SELF_PROTECTED || |
3330 | mgmt->u.action.category == WLAN_CATEGORY_SPECTRUM_MGMT) |
3331 | break; |
3332 | rcu_read_lock(); |
3333 | sta = sta_info_get(sdata, mgmt->da); |
3334 | rcu_read_unlock(); |
3335 | if (!sta) |
3336 | return -ENOLINK; |
3337 | break; |
3338 | case NL80211_IFTYPE_STATION: |
3339 | case NL80211_IFTYPE_P2P_CLIENT: |
3340 | if (!sdata->u.mgd.associated) |
3341 | need_offchan = true; |
3342 | break; |
3343 | case NL80211_IFTYPE_P2P_DEVICE: |
3344 | need_offchan = true; |
3345 | break; |
3346 | default: |
3347 | return -EOPNOTSUPP; |
3348 | } |
3349 | |
3350 | /* configurations requiring offchan cannot work if no channel has been |
3351 | * specified |
3352 | */ |
3353 | if (need_offchan && !params->chan) |
3354 | return -EINVAL; |
3355 | |
3356 | mutex_lock(&local->mtx); |
3357 | |
3358 | /* Check if the operating channel is the requested channel */ |
3359 | if (!need_offchan) { |
3360 | struct ieee80211_chanctx_conf *chanctx_conf; |
3361 | |
3362 | rcu_read_lock(); |
3363 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
3364 | |
3365 | if (chanctx_conf) { |
3366 | need_offchan = params->chan && |
3367 | (params->chan != |
3368 | chanctx_conf->def.chan); |
3369 | } else if (!params->chan) { |
3370 | ret = -EINVAL; |
3371 | rcu_read_unlock(); |
3372 | goto out_unlock; |
3373 | } else { |
3374 | need_offchan = true; |
3375 | } |
3376 | rcu_read_unlock(); |
3377 | } |
3378 | |
3379 | if (need_offchan && !params->offchan) { |
3380 | ret = -EBUSY; |
3381 | goto out_unlock; |
3382 | } |
3383 | |
3384 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + params->len); |
3385 | if (!skb) { |
3386 | ret = -ENOMEM; |
3387 | goto out_unlock; |
3388 | } |
3389 | skb_reserve(skb, local->hw.extra_tx_headroom); |
3390 | |
3391 | memcpy(skb_put(skb, params->len), params->buf, params->len); |
3392 | |
3393 | IEEE80211_SKB_CB(skb)->flags = flags; |
3394 | |
3395 | skb->dev = sdata->dev; |
3396 | |
3397 | if (!need_offchan) { |
3398 | *cookie = (unsigned long) skb; |
3399 | ieee80211_tx_skb(sdata, skb); |
3400 | ret = 0; |
3401 | goto out_unlock; |
3402 | } |
3403 | |
3404 | IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_TX_OFFCHAN | |
3405 | IEEE80211_TX_INTFL_OFFCHAN_TX_OK; |
3406 | if (local->hw.flags & IEEE80211_HW_QUEUE_CONTROL) |
3407 | IEEE80211_SKB_CB(skb)->hw_queue = |
3408 | local->hw.offchannel_tx_hw_queue; |
3409 | |
3410 | /* This will handle all kinds of coalescing and immediate TX */ |
3411 | ret = ieee80211_start_roc_work(local, sdata, params->chan, |
3412 | params->wait, cookie, skb, |
3413 | IEEE80211_ROC_TYPE_MGMT_TX); |
3414 | if (ret) |
3415 | kfree_skb(skb); |
3416 | out_unlock: |
3417 | mutex_unlock(&local->mtx); |
3418 | return ret; |
3419 | } |
3420 | |
3421 | static int ieee80211_mgmt_tx_cancel_wait(struct wiphy *wiphy, |
3422 | struct wireless_dev *wdev, |
3423 | u64 cookie) |
3424 | { |
3425 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3426 | |
3427 | return ieee80211_cancel_roc(local, cookie, true); |
3428 | } |
3429 | |
3430 | static void ieee80211_mgmt_frame_register(struct wiphy *wiphy, |
3431 | struct wireless_dev *wdev, |
3432 | u16 frame_type, bool reg) |
3433 | { |
3434 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3435 | |
3436 | switch (frame_type) { |
3437 | case IEEE80211_FTYPE_MGMT | IEEE80211_STYPE_PROBE_REQ: |
3438 | if (reg) |
3439 | local->probe_req_reg++; |
3440 | else |
3441 | local->probe_req_reg--; |
3442 | |
3443 | if (!local->open_count) |
3444 | break; |
3445 | |
3446 | ieee80211_queue_work(&local->hw, &local->reconfig_filter); |
3447 | break; |
3448 | default: |
3449 | break; |
3450 | } |
3451 | } |
3452 | |
3453 | static int ieee80211_set_antenna(struct wiphy *wiphy, u32 tx_ant, u32 rx_ant) |
3454 | { |
3455 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3456 | |
3457 | if (local->started) |
3458 | return -EOPNOTSUPP; |
3459 | |
3460 | return drv_set_antenna(local, tx_ant, rx_ant); |
3461 | } |
3462 | |
3463 | static int ieee80211_get_antenna(struct wiphy *wiphy, u32 *tx_ant, u32 *rx_ant) |
3464 | { |
3465 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3466 | |
3467 | return drv_get_antenna(local, tx_ant, rx_ant); |
3468 | } |
3469 | |
3470 | static int ieee80211_set_ringparam(struct wiphy *wiphy, u32 tx, u32 rx) |
3471 | { |
3472 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3473 | |
3474 | return drv_set_ringparam(local, tx, rx); |
3475 | } |
3476 | |
3477 | static void ieee80211_get_ringparam(struct wiphy *wiphy, |
3478 | u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max) |
3479 | { |
3480 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3481 | |
3482 | drv_get_ringparam(local, tx, tx_max, rx, rx_max); |
3483 | } |
3484 | |
3485 | static int ieee80211_set_rekey_data(struct wiphy *wiphy, |
3486 | struct net_device *dev, |
3487 | struct cfg80211_gtk_rekey_data *data) |
3488 | { |
3489 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3490 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3491 | |
3492 | if (!local->ops->set_rekey_data) |
3493 | return -EOPNOTSUPP; |
3494 | |
3495 | drv_set_rekey_data(local, sdata, data); |
3496 | |
3497 | return 0; |
3498 | } |
3499 | |
3500 | static void ieee80211_tdls_add_ext_capab(struct sk_buff *skb) |
3501 | { |
3502 | u8 *pos = (void *)skb_put(skb, 7); |
3503 | |
3504 | *pos++ = WLAN_EID_EXT_CAPABILITY; |
3505 | *pos++ = 5; /* len */ |
3506 | *pos++ = 0x0; |
3507 | *pos++ = 0x0; |
3508 | *pos++ = 0x0; |
3509 | *pos++ = 0x0; |
3510 | *pos++ = WLAN_EXT_CAPA5_TDLS_ENABLED; |
3511 | } |
3512 | |
3513 | static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata) |
3514 | { |
3515 | struct ieee80211_local *local = sdata->local; |
3516 | u16 capab; |
3517 | |
3518 | capab = 0; |
3519 | if (ieee80211_get_sdata_band(sdata) != IEEE80211_BAND_2GHZ) |
3520 | return capab; |
3521 | |
3522 | if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE)) |
3523 | capab |= WLAN_CAPABILITY_SHORT_SLOT_TIME; |
3524 | if (!(local->hw.flags & IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE)) |
3525 | capab |= WLAN_CAPABILITY_SHORT_PREAMBLE; |
3526 | |
3527 | return capab; |
3528 | } |
3529 | |
3530 | static void ieee80211_tdls_add_link_ie(struct sk_buff *skb, u8 *src_addr, |
3531 | u8 *peer, u8 *bssid) |
3532 | { |
3533 | struct ieee80211_tdls_lnkie *lnkid; |
3534 | |
3535 | lnkid = (void *)skb_put(skb, sizeof(struct ieee80211_tdls_lnkie)); |
3536 | |
3537 | lnkid->ie_type = WLAN_EID_LINK_ID; |
3538 | lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) - 2; |
3539 | |
3540 | memcpy(lnkid->bssid, bssid, ETH_ALEN); |
3541 | memcpy(lnkid->init_sta, src_addr, ETH_ALEN); |
3542 | memcpy(lnkid->resp_sta, peer, ETH_ALEN); |
3543 | } |
3544 | |
3545 | static int |
3546 | ieee80211_prep_tdls_encap_data(struct wiphy *wiphy, struct net_device *dev, |
3547 | u8 *peer, u8 action_code, u8 dialog_token, |
3548 | u16 status_code, struct sk_buff *skb) |
3549 | { |
3550 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3551 | enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
3552 | struct ieee80211_tdls_data *tf; |
3553 | |
3554 | tf = (void *)skb_put(skb, offsetof(struct ieee80211_tdls_data, u)); |
3555 | |
3556 | memcpy(tf->da, peer, ETH_ALEN); |
3557 | memcpy(tf->sa, sdata->vif.addr, ETH_ALEN); |
3558 | tf->ether_type = cpu_to_be16(ETH_P_TDLS); |
3559 | tf->payload_type = WLAN_TDLS_SNAP_RFTYPE; |
3560 | |
3561 | switch (action_code) { |
3562 | case WLAN_TDLS_SETUP_REQUEST: |
3563 | tf->category = WLAN_CATEGORY_TDLS; |
3564 | tf->action_code = WLAN_TDLS_SETUP_REQUEST; |
3565 | |
3566 | skb_put(skb, sizeof(tf->u.setup_req)); |
3567 | tf->u.setup_req.dialog_token = dialog_token; |
3568 | tf->u.setup_req.capability = |
3569 | cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
3570 | |
3571 | ieee80211_add_srates_ie(sdata, skb, false, band); |
3572 | ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
3573 | ieee80211_tdls_add_ext_capab(skb); |
3574 | break; |
3575 | case WLAN_TDLS_SETUP_RESPONSE: |
3576 | tf->category = WLAN_CATEGORY_TDLS; |
3577 | tf->action_code = WLAN_TDLS_SETUP_RESPONSE; |
3578 | |
3579 | skb_put(skb, sizeof(tf->u.setup_resp)); |
3580 | tf->u.setup_resp.status_code = cpu_to_le16(status_code); |
3581 | tf->u.setup_resp.dialog_token = dialog_token; |
3582 | tf->u.setup_resp.capability = |
3583 | cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
3584 | |
3585 | ieee80211_add_srates_ie(sdata, skb, false, band); |
3586 | ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
3587 | ieee80211_tdls_add_ext_capab(skb); |
3588 | break; |
3589 | case WLAN_TDLS_SETUP_CONFIRM: |
3590 | tf->category = WLAN_CATEGORY_TDLS; |
3591 | tf->action_code = WLAN_TDLS_SETUP_CONFIRM; |
3592 | |
3593 | skb_put(skb, sizeof(tf->u.setup_cfm)); |
3594 | tf->u.setup_cfm.status_code = cpu_to_le16(status_code); |
3595 | tf->u.setup_cfm.dialog_token = dialog_token; |
3596 | break; |
3597 | case WLAN_TDLS_TEARDOWN: |
3598 | tf->category = WLAN_CATEGORY_TDLS; |
3599 | tf->action_code = WLAN_TDLS_TEARDOWN; |
3600 | |
3601 | skb_put(skb, sizeof(tf->u.teardown)); |
3602 | tf->u.teardown.reason_code = cpu_to_le16(status_code); |
3603 | break; |
3604 | case WLAN_TDLS_DISCOVERY_REQUEST: |
3605 | tf->category = WLAN_CATEGORY_TDLS; |
3606 | tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST; |
3607 | |
3608 | skb_put(skb, sizeof(tf->u.discover_req)); |
3609 | tf->u.discover_req.dialog_token = dialog_token; |
3610 | break; |
3611 | default: |
3612 | return -EINVAL; |
3613 | } |
3614 | |
3615 | return 0; |
3616 | } |
3617 | |
3618 | static int |
3619 | ieee80211_prep_tdls_direct(struct wiphy *wiphy, struct net_device *dev, |
3620 | u8 *peer, u8 action_code, u8 dialog_token, |
3621 | u16 status_code, struct sk_buff *skb) |
3622 | { |
3623 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3624 | enum ieee80211_band band = ieee80211_get_sdata_band(sdata); |
3625 | struct ieee80211_mgmt *mgmt; |
3626 | |
3627 | mgmt = (void *)skb_put(skb, 24); |
3628 | memset(mgmt, 0, 24); |
3629 | memcpy(mgmt->da, peer, ETH_ALEN); |
3630 | memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN); |
3631 | memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN); |
3632 | |
3633 | mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | |
3634 | IEEE80211_STYPE_ACTION); |
3635 | |
3636 | switch (action_code) { |
3637 | case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
3638 | skb_put(skb, 1 + sizeof(mgmt->u.action.u.tdls_discover_resp)); |
3639 | mgmt->u.action.category = WLAN_CATEGORY_PUBLIC; |
3640 | mgmt->u.action.u.tdls_discover_resp.action_code = |
3641 | WLAN_PUB_ACTION_TDLS_DISCOVER_RES; |
3642 | mgmt->u.action.u.tdls_discover_resp.dialog_token = |
3643 | dialog_token; |
3644 | mgmt->u.action.u.tdls_discover_resp.capability = |
3645 | cpu_to_le16(ieee80211_get_tdls_sta_capab(sdata)); |
3646 | |
3647 | ieee80211_add_srates_ie(sdata, skb, false, band); |
3648 | ieee80211_add_ext_srates_ie(sdata, skb, false, band); |
3649 | ieee80211_tdls_add_ext_capab(skb); |
3650 | break; |
3651 | default: |
3652 | return -EINVAL; |
3653 | } |
3654 | |
3655 | return 0; |
3656 | } |
3657 | |
3658 | static int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev, |
3659 | u8 *peer, u8 action_code, u8 dialog_token, |
3660 | u16 status_code, u32 peer_capability, |
3661 | const u8 *extra_ies, size_t extra_ies_len) |
3662 | { |
3663 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3664 | struct ieee80211_local *local = sdata->local; |
3665 | struct sk_buff *skb = NULL; |
3666 | bool send_direct; |
3667 | int ret; |
3668 | |
3669 | if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
3670 | return -ENOTSUPP; |
3671 | |
3672 | /* make sure we are in managed mode, and associated */ |
3673 | if (sdata->vif.type != NL80211_IFTYPE_STATION || |
3674 | !sdata->u.mgd.associated) |
3675 | return -EINVAL; |
3676 | |
3677 | tdls_dbg(sdata, "TDLS mgmt action %d peer %pM\n", |
3678 | action_code, peer); |
3679 | |
3680 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + |
3681 | max(sizeof(struct ieee80211_mgmt), |
3682 | sizeof(struct ieee80211_tdls_data)) + |
3683 | 50 + /* supported rates */ |
3684 | 7 + /* ext capab */ |
3685 | extra_ies_len + |
3686 | sizeof(struct ieee80211_tdls_lnkie)); |
3687 | if (!skb) |
3688 | return -ENOMEM; |
3689 | |
3690 | skb_reserve(skb, local->hw.extra_tx_headroom); |
3691 | |
3692 | switch (action_code) { |
3693 | case WLAN_TDLS_SETUP_REQUEST: |
3694 | case WLAN_TDLS_SETUP_RESPONSE: |
3695 | case WLAN_TDLS_SETUP_CONFIRM: |
3696 | case WLAN_TDLS_TEARDOWN: |
3697 | case WLAN_TDLS_DISCOVERY_REQUEST: |
3698 | ret = ieee80211_prep_tdls_encap_data(wiphy, dev, peer, |
3699 | action_code, dialog_token, |
3700 | status_code, skb); |
3701 | send_direct = false; |
3702 | break; |
3703 | case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
3704 | ret = ieee80211_prep_tdls_direct(wiphy, dev, peer, action_code, |
3705 | dialog_token, status_code, |
3706 | skb); |
3707 | send_direct = true; |
3708 | break; |
3709 | default: |
3710 | ret = -ENOTSUPP; |
3711 | break; |
3712 | } |
3713 | |
3714 | if (ret < 0) |
3715 | goto fail; |
3716 | |
3717 | if (extra_ies_len) |
3718 | memcpy(skb_put(skb, extra_ies_len), extra_ies, extra_ies_len); |
3719 | |
3720 | /* the TDLS link IE is always added last */ |
3721 | switch (action_code) { |
3722 | case WLAN_TDLS_SETUP_REQUEST: |
3723 | case WLAN_TDLS_SETUP_CONFIRM: |
3724 | case WLAN_TDLS_TEARDOWN: |
3725 | case WLAN_TDLS_DISCOVERY_REQUEST: |
3726 | /* we are the initiator */ |
3727 | ieee80211_tdls_add_link_ie(skb, sdata->vif.addr, peer, |
3728 | sdata->u.mgd.bssid); |
3729 | break; |
3730 | case WLAN_TDLS_SETUP_RESPONSE: |
3731 | case WLAN_PUB_ACTION_TDLS_DISCOVER_RES: |
3732 | /* we are the responder */ |
3733 | ieee80211_tdls_add_link_ie(skb, peer, sdata->vif.addr, |
3734 | sdata->u.mgd.bssid); |
3735 | break; |
3736 | default: |
3737 | ret = -ENOTSUPP; |
3738 | goto fail; |
3739 | } |
3740 | |
3741 | if (send_direct) { |
3742 | ieee80211_tx_skb(sdata, skb); |
3743 | return 0; |
3744 | } |
3745 | |
3746 | /* |
3747 | * According to 802.11z: Setup req/resp are sent in AC_BK, otherwise |
3748 | * we should default to AC_VI. |
3749 | */ |
3750 | switch (action_code) { |
3751 | case WLAN_TDLS_SETUP_REQUEST: |
3752 | case WLAN_TDLS_SETUP_RESPONSE: |
3753 | skb_set_queue_mapping(skb, IEEE80211_AC_BK); |
3754 | skb->priority = 2; |
3755 | break; |
3756 | default: |
3757 | skb_set_queue_mapping(skb, IEEE80211_AC_VI); |
3758 | skb->priority = 5; |
3759 | break; |
3760 | } |
3761 | |
3762 | /* disable bottom halves when entering the Tx path */ |
3763 | local_bh_disable(); |
3764 | ret = ieee80211_subif_start_xmit(skb, dev); |
3765 | local_bh_enable(); |
3766 | |
3767 | return ret; |
3768 | |
3769 | fail: |
3770 | dev_kfree_skb(skb); |
3771 | return ret; |
3772 | } |
3773 | |
3774 | static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, |
3775 | u8 *peer, enum nl80211_tdls_operation oper) |
3776 | { |
3777 | struct sta_info *sta; |
3778 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3779 | |
3780 | if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) |
3781 | return -ENOTSUPP; |
3782 | |
3783 | if (sdata->vif.type != NL80211_IFTYPE_STATION) |
3784 | return -EINVAL; |
3785 | |
3786 | tdls_dbg(sdata, "TDLS oper %d peer %pM\n", oper, peer); |
3787 | |
3788 | switch (oper) { |
3789 | case NL80211_TDLS_ENABLE_LINK: |
3790 | rcu_read_lock(); |
3791 | sta = sta_info_get(sdata, peer); |
3792 | if (!sta) { |
3793 | rcu_read_unlock(); |
3794 | return -ENOLINK; |
3795 | } |
3796 | |
3797 | set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH); |
3798 | rcu_read_unlock(); |
3799 | break; |
3800 | case NL80211_TDLS_DISABLE_LINK: |
3801 | return sta_info_destroy_addr(sdata, peer); |
3802 | case NL80211_TDLS_TEARDOWN: |
3803 | case NL80211_TDLS_SETUP: |
3804 | case NL80211_TDLS_DISCOVERY_REQ: |
3805 | /* We don't support in-driver setup/teardown/discovery */ |
3806 | return -ENOTSUPP; |
3807 | default: |
3808 | return -ENOTSUPP; |
3809 | } |
3810 | |
3811 | return 0; |
3812 | } |
3813 | |
3814 | static int ieee80211_probe_client(struct wiphy *wiphy, struct net_device *dev, |
3815 | const u8 *peer, u64 *cookie) |
3816 | { |
3817 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3818 | struct ieee80211_local *local = sdata->local; |
3819 | struct ieee80211_qos_hdr *nullfunc; |
3820 | struct sk_buff *skb; |
3821 | int size = sizeof(*nullfunc); |
3822 | __le16 fc; |
3823 | bool qos; |
3824 | struct ieee80211_tx_info *info; |
3825 | struct sta_info *sta; |
3826 | struct ieee80211_chanctx_conf *chanctx_conf; |
3827 | enum ieee80211_band band; |
3828 | |
3829 | rcu_read_lock(); |
3830 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
3831 | if (WARN_ON(!chanctx_conf)) { |
3832 | rcu_read_unlock(); |
3833 | return -EINVAL; |
3834 | } |
3835 | band = chanctx_conf->def.chan->band; |
3836 | sta = sta_info_get_bss(sdata, peer); |
3837 | if (sta) { |
3838 | qos = test_sta_flag(sta, WLAN_STA_WME); |
3839 | } else { |
3840 | rcu_read_unlock(); |
3841 | return -ENOLINK; |
3842 | } |
3843 | |
3844 | if (qos) { |
3845 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
3846 | IEEE80211_STYPE_QOS_NULLFUNC | |
3847 | IEEE80211_FCTL_FROMDS); |
3848 | } else { |
3849 | size -= 2; |
3850 | fc = cpu_to_le16(IEEE80211_FTYPE_DATA | |
3851 | IEEE80211_STYPE_NULLFUNC | |
3852 | IEEE80211_FCTL_FROMDS); |
3853 | } |
3854 | |
3855 | skb = dev_alloc_skb(local->hw.extra_tx_headroom + size); |
3856 | if (!skb) { |
3857 | rcu_read_unlock(); |
3858 | return -ENOMEM; |
3859 | } |
3860 | |
3861 | skb->dev = dev; |
3862 | |
3863 | skb_reserve(skb, local->hw.extra_tx_headroom); |
3864 | |
3865 | nullfunc = (void *) skb_put(skb, size); |
3866 | nullfunc->frame_control = fc; |
3867 | nullfunc->duration_id = 0; |
3868 | memcpy(nullfunc->addr1, sta->sta.addr, ETH_ALEN); |
3869 | memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN); |
3870 | memcpy(nullfunc->addr3, sdata->vif.addr, ETH_ALEN); |
3871 | nullfunc->seq_ctrl = 0; |
3872 | |
3873 | info = IEEE80211_SKB_CB(skb); |
3874 | |
3875 | info->flags |= IEEE80211_TX_CTL_REQ_TX_STATUS | |
3876 | IEEE80211_TX_INTFL_NL80211_FRAME_TX; |
3877 | |
3878 | skb_set_queue_mapping(skb, IEEE80211_AC_VO); |
3879 | skb->priority = 7; |
3880 | if (qos) |
3881 | nullfunc->qos_ctrl = cpu_to_le16(7); |
3882 | |
3883 | local_bh_disable(); |
3884 | ieee80211_xmit(sdata, skb, band); |
3885 | local_bh_enable(); |
3886 | rcu_read_unlock(); |
3887 | |
3888 | *cookie = (unsigned long) skb; |
3889 | return 0; |
3890 | } |
3891 | |
3892 | static int ieee80211_cfg_get_channel(struct wiphy *wiphy, |
3893 | struct wireless_dev *wdev, |
3894 | struct cfg80211_chan_def *chandef) |
3895 | { |
3896 | struct ieee80211_sub_if_data *sdata = IEEE80211_WDEV_TO_SUB_IF(wdev); |
3897 | struct ieee80211_local *local = wiphy_priv(wiphy); |
3898 | struct ieee80211_chanctx_conf *chanctx_conf; |
3899 | int ret = -ENODATA; |
3900 | |
3901 | rcu_read_lock(); |
3902 | chanctx_conf = rcu_dereference(sdata->vif.chanctx_conf); |
3903 | if (chanctx_conf) { |
3904 | *chandef = chanctx_conf->def; |
3905 | ret = 0; |
3906 | } else if (local->open_count > 0 && |
3907 | local->open_count == local->monitors && |
3908 | sdata->vif.type == NL80211_IFTYPE_MONITOR) { |
3909 | if (local->use_chanctx) |
3910 | *chandef = local->monitor_chandef; |
3911 | else |
3912 | *chandef = local->_oper_chandef; |
3913 | ret = 0; |
3914 | } |
3915 | rcu_read_unlock(); |
3916 | |
3917 | return ret; |
3918 | } |
3919 | |
3920 | #ifdef CONFIG_PM |
3921 | static void ieee80211_set_wakeup(struct wiphy *wiphy, bool enabled) |
3922 | { |
3923 | drv_set_wakeup(wiphy_priv(wiphy), enabled); |
3924 | } |
3925 | #endif |
3926 | |
3927 | static int ieee80211_set_qos_map(struct wiphy *wiphy, |
3928 | struct net_device *dev, |
3929 | struct cfg80211_qos_map *qos_map) |
3930 | { |
3931 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
3932 | struct mac80211_qos_map *new_qos_map, *old_qos_map; |
3933 | |
3934 | if (qos_map) { |
3935 | new_qos_map = kzalloc(sizeof(*new_qos_map), GFP_KERNEL); |
3936 | if (!new_qos_map) |
3937 | return -ENOMEM; |
3938 | memcpy(&new_qos_map->qos_map, qos_map, sizeof(*qos_map)); |
3939 | } else { |
3940 | /* A NULL qos_map was passed to disable QoS mapping */ |
3941 | new_qos_map = NULL; |
3942 | } |
3943 | |
3944 | old_qos_map = sdata_dereference(sdata->qos_map, sdata); |
3945 | rcu_assign_pointer(sdata->qos_map, new_qos_map); |
3946 | if (old_qos_map) |
3947 | kfree_rcu(old_qos_map, rcu_head); |
3948 | |
3949 | return 0; |
3950 | } |
3951 | |
3952 | const struct cfg80211_ops mac80211_config_ops = { |
3953 | .add_virtual_intf = ieee80211_add_iface, |
3954 | .del_virtual_intf = ieee80211_del_iface, |
3955 | .change_virtual_intf = ieee80211_change_iface, |
3956 | .start_p2p_device = ieee80211_start_p2p_device, |
3957 | .stop_p2p_device = ieee80211_stop_p2p_device, |
3958 | .add_key = ieee80211_add_key, |
3959 | .del_key = ieee80211_del_key, |
3960 | .get_key = ieee80211_get_key, |
3961 | .set_default_key = ieee80211_config_default_key, |
3962 | .set_default_mgmt_key = ieee80211_config_default_mgmt_key, |
3963 | .start_ap = ieee80211_start_ap, |
3964 | .change_beacon = ieee80211_change_beacon, |
3965 | .stop_ap = ieee80211_stop_ap, |
3966 | .add_station = ieee80211_add_station, |
3967 | .del_station = ieee80211_del_station, |
3968 | .change_station = ieee80211_change_station, |
3969 | .get_station = ieee80211_get_station, |
3970 | .dump_station = ieee80211_dump_station, |
3971 | .dump_survey = ieee80211_dump_survey, |
3972 | #ifdef CONFIG_MAC80211_MESH |
3973 | .add_mpath = ieee80211_add_mpath, |
3974 | .del_mpath = ieee80211_del_mpath, |
3975 | .change_mpath = ieee80211_change_mpath, |
3976 | .get_mpath = ieee80211_get_mpath, |
3977 | .dump_mpath = ieee80211_dump_mpath, |
3978 | .update_mesh_config = ieee80211_update_mesh_config, |
3979 | .get_mesh_config = ieee80211_get_mesh_config, |
3980 | .join_mesh = ieee80211_join_mesh, |
3981 | .leave_mesh = ieee80211_leave_mesh, |
3982 | #endif |
3983 | .change_bss = ieee80211_change_bss, |
3984 | .set_txq_params = ieee80211_set_txq_params, |
3985 | .set_monitor_channel = ieee80211_set_monitor_channel, |
3986 | .suspend = ieee80211_suspend, |
3987 | .resume = ieee80211_resume, |
3988 | .scan = ieee80211_scan, |
3989 | .sched_scan_start = ieee80211_sched_scan_start, |
3990 | .sched_scan_stop = ieee80211_sched_scan_stop, |
3991 | .auth = ieee80211_auth, |
3992 | .assoc = ieee80211_assoc, |
3993 | .deauth = ieee80211_deauth, |
3994 | .disassoc = ieee80211_disassoc, |
3995 | .join_ibss = ieee80211_join_ibss, |
3996 | .leave_ibss = ieee80211_leave_ibss, |
3997 | .set_mcast_rate = ieee80211_set_mcast_rate, |
3998 | .set_wiphy_params = ieee80211_set_wiphy_params, |
3999 | .set_tx_power = ieee80211_set_tx_power, |
4000 | .get_tx_power = ieee80211_get_tx_power, |
4001 | .set_wds_peer = ieee80211_set_wds_peer, |
4002 | .rfkill_poll = ieee80211_rfkill_poll, |
4003 | CFG80211_TESTMODE_CMD(ieee80211_testmode_cmd) |
4004 | CFG80211_TESTMODE_DUMP(ieee80211_testmode_dump) |
4005 | .set_power_mgmt = ieee80211_set_power_mgmt, |
4006 | .set_bitrate_mask = ieee80211_set_bitrate_mask, |
4007 | .remain_on_channel = ieee80211_remain_on_channel, |
4008 | .cancel_remain_on_channel = ieee80211_cancel_remain_on_channel, |
4009 | .mgmt_tx = ieee80211_mgmt_tx, |
4010 | .mgmt_tx_cancel_wait = ieee80211_mgmt_tx_cancel_wait, |
4011 | .set_cqm_rssi_config = ieee80211_set_cqm_rssi_config, |
4012 | .mgmt_frame_register = ieee80211_mgmt_frame_register, |
4013 | .set_antenna = ieee80211_set_antenna, |
4014 | .get_antenna = ieee80211_get_antenna, |
4015 | .set_ringparam = ieee80211_set_ringparam, |
4016 | .get_ringparam = ieee80211_get_ringparam, |
4017 | .set_rekey_data = ieee80211_set_rekey_data, |
4018 | .tdls_oper = ieee80211_tdls_oper, |
4019 | .tdls_mgmt = ieee80211_tdls_mgmt, |
4020 | .probe_client = ieee80211_probe_client, |
4021 | .set_noack_map = ieee80211_set_noack_map, |
4022 | #ifdef CONFIG_PM |
4023 | .set_wakeup = ieee80211_set_wakeup, |
4024 | #endif |
4025 | .get_et_sset_count = ieee80211_get_et_sset_count, |
4026 | .get_et_stats = ieee80211_get_et_stats, |
4027 | .get_et_strings = ieee80211_get_et_strings, |
4028 | .get_channel = ieee80211_cfg_get_channel, |
4029 | .start_radar_detection = ieee80211_start_radar_detection, |
4030 | .channel_switch = ieee80211_channel_switch, |
4031 | .set_qos_map = ieee80211_set_qos_map, |
4032 | }; |
4033 |
Branches:
ben-wpan
ben-wpan-stefan
javiroman/ks7010
jz-2.6.34
jz-2.6.34-rc5
jz-2.6.34-rc6
jz-2.6.34-rc7
jz-2.6.35
jz-2.6.36
jz-2.6.37
jz-2.6.38
jz-2.6.39
jz-3.0
jz-3.1
jz-3.11
jz-3.12
jz-3.13
jz-3.15
jz-3.16
jz-3.18-dt
jz-3.2
jz-3.3
jz-3.4
jz-3.5
jz-3.6
jz-3.6-rc2-pwm
jz-3.9
jz-3.9-clk
jz-3.9-rc8
jz47xx
jz47xx-2.6.38
master
Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
v2.6.34-rc6
v2.6.34-rc7
v3.9