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1 | /* | |
2 | * mac80211 configuration hooks for cfg80211 | |
3 | * | |
4 | * Copyright 2006, 2007 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 <net/net_namespace.h> | |
13 | #include <linux/rcupdate.h> | |
14 | #include <net/cfg80211.h> | |
15 | #include "ieee80211_i.h" | |
16 | #include "driver-ops.h" | |
17 | #include "cfg.h" | |
18 | #include "rate.h" | |
19 | #include "mesh.h" | |
20 | ||
21 | static bool nl80211_type_check(enum nl80211_iftype type) | |
22 | { | |
23 | switch (type) { | |
24 | case NL80211_IFTYPE_ADHOC: | |
25 | case NL80211_IFTYPE_STATION: | |
26 | case NL80211_IFTYPE_MONITOR: | |
27 | #ifdef CONFIG_MAC80211_MESH | |
28 | case NL80211_IFTYPE_MESH_POINT: | |
29 | #endif | |
30 | case NL80211_IFTYPE_AP: | |
31 | case NL80211_IFTYPE_AP_VLAN: | |
32 | case NL80211_IFTYPE_WDS: | |
33 | return true; | |
34 | default: | |
35 | return false; | |
36 | } | |
37 | } | |
38 | ||
39 | static int ieee80211_add_iface(struct wiphy *wiphy, char *name, | |
40 | enum nl80211_iftype type, u32 *flags, | |
41 | struct vif_params *params) | |
42 | { | |
43 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
44 | struct net_device *dev; | |
45 | struct ieee80211_sub_if_data *sdata; | |
46 | int err; | |
47 | ||
48 | if (!nl80211_type_check(type)) | |
49 | return -EINVAL; | |
50 | ||
51 | err = ieee80211_if_add(local, name, &dev, type, params); | |
52 | if (err || type != NL80211_IFTYPE_MONITOR || !flags) | |
53 | return err; | |
54 | ||
55 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
56 | sdata->u.mntr_flags = *flags; | |
57 | return 0; | |
58 | } | |
59 | ||
60 | static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) | |
61 | { | |
62 | struct net_device *dev; | |
63 | struct ieee80211_sub_if_data *sdata; | |
64 | ||
65 | /* we're under RTNL */ | |
66 | dev = __dev_get_by_index(&init_net, ifindex); | |
67 | if (!dev) | |
68 | return -ENODEV; | |
69 | ||
70 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
71 | ||
72 | ieee80211_if_remove(sdata); | |
73 | ||
74 | return 0; | |
75 | } | |
76 | ||
77 | static int ieee80211_change_iface(struct wiphy *wiphy, | |
78 | struct net_device *dev, | |
79 | enum nl80211_iftype type, u32 *flags, | |
80 | struct vif_params *params) | |
81 | { | |
82 | struct ieee80211_sub_if_data *sdata; | |
83 | int ret; | |
84 | ||
85 | if (!nl80211_type_check(type)) | |
86 | return -EINVAL; | |
87 | ||
88 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
89 | ||
90 | ret = ieee80211_if_change_type(sdata, type); | |
91 | if (ret) | |
92 | return ret; | |
93 | ||
94 | if (netif_running(sdata->dev)) | |
95 | return -EBUSY; | |
96 | ||
97 | if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) | |
98 | ieee80211_sdata_set_mesh_id(sdata, | |
99 | params->mesh_id_len, | |
100 | params->mesh_id); | |
101 | ||
102 | if (sdata->vif.type != NL80211_IFTYPE_MONITOR || !flags) | |
103 | return 0; | |
104 | ||
105 | sdata->u.mntr_flags = *flags; | |
106 | return 0; | |
107 | } | |
108 | ||
109 | static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, | |
110 | u8 key_idx, const u8 *mac_addr, | |
111 | struct key_params *params) | |
112 | { | |
113 | struct ieee80211_sub_if_data *sdata; | |
114 | struct sta_info *sta = NULL; | |
115 | enum ieee80211_key_alg alg; | |
116 | struct ieee80211_key *key; | |
117 | int err; | |
118 | ||
119 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
120 | ||
121 | switch (params->cipher) { | |
122 | case WLAN_CIPHER_SUITE_WEP40: | |
123 | case WLAN_CIPHER_SUITE_WEP104: | |
124 | alg = ALG_WEP; | |
125 | break; | |
126 | case WLAN_CIPHER_SUITE_TKIP: | |
127 | alg = ALG_TKIP; | |
128 | break; | |
129 | case WLAN_CIPHER_SUITE_CCMP: | |
130 | alg = ALG_CCMP; | |
131 | break; | |
132 | case WLAN_CIPHER_SUITE_AES_CMAC: | |
133 | alg = ALG_AES_CMAC; | |
134 | break; | |
135 | default: | |
136 | return -EINVAL; | |
137 | } | |
138 | ||
139 | key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key, | |
140 | params->seq_len, params->seq); | |
141 | if (!key) | |
142 | return -ENOMEM; | |
143 | ||
144 | rcu_read_lock(); | |
145 | ||
146 | if (mac_addr) { | |
147 | sta = sta_info_get(sdata->local, mac_addr); | |
148 | if (!sta) { | |
149 | ieee80211_key_free(key); | |
150 | err = -ENOENT; | |
151 | goto out_unlock; | |
152 | } | |
153 | } | |
154 | ||
155 | ieee80211_key_link(key, sdata, sta); | |
156 | ||
157 | err = 0; | |
158 | out_unlock: | |
159 | rcu_read_unlock(); | |
160 | ||
161 | return err; | |
162 | } | |
163 | ||
164 | static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, | |
165 | u8 key_idx, const u8 *mac_addr) | |
166 | { | |
167 | struct ieee80211_sub_if_data *sdata; | |
168 | struct sta_info *sta; | |
169 | int ret; | |
170 | ||
171 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
172 | ||
173 | rcu_read_lock(); | |
174 | ||
175 | if (mac_addr) { | |
176 | ret = -ENOENT; | |
177 | ||
178 | sta = sta_info_get(sdata->local, mac_addr); | |
179 | if (!sta) | |
180 | goto out_unlock; | |
181 | ||
182 | if (sta->key) { | |
183 | ieee80211_key_free(sta->key); | |
184 | WARN_ON(sta->key); | |
185 | ret = 0; | |
186 | } | |
187 | ||
188 | goto out_unlock; | |
189 | } | |
190 | ||
191 | if (!sdata->keys[key_idx]) { | |
192 | ret = -ENOENT; | |
193 | goto out_unlock; | |
194 | } | |
195 | ||
196 | ieee80211_key_free(sdata->keys[key_idx]); | |
197 | WARN_ON(sdata->keys[key_idx]); | |
198 | ||
199 | ret = 0; | |
200 | out_unlock: | |
201 | rcu_read_unlock(); | |
202 | ||
203 | return ret; | |
204 | } | |
205 | ||
206 | static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, | |
207 | u8 key_idx, const u8 *mac_addr, void *cookie, | |
208 | void (*callback)(void *cookie, | |
209 | struct key_params *params)) | |
210 | { | |
211 | struct ieee80211_sub_if_data *sdata; | |
212 | struct sta_info *sta = NULL; | |
213 | u8 seq[6] = {0}; | |
214 | struct key_params params; | |
215 | struct ieee80211_key *key; | |
216 | u32 iv32; | |
217 | u16 iv16; | |
218 | int err = -ENOENT; | |
219 | ||
220 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
221 | ||
222 | rcu_read_lock(); | |
223 | ||
224 | if (mac_addr) { | |
225 | sta = sta_info_get(sdata->local, mac_addr); | |
226 | if (!sta) | |
227 | goto out; | |
228 | ||
229 | key = sta->key; | |
230 | } else | |
231 | key = sdata->keys[key_idx]; | |
232 | ||
233 | if (!key) | |
234 | goto out; | |
235 | ||
236 | memset(¶ms, 0, sizeof(params)); | |
237 | ||
238 | switch (key->conf.alg) { | |
239 | case ALG_TKIP: | |
240 | params.cipher = WLAN_CIPHER_SUITE_TKIP; | |
241 | ||
242 | iv32 = key->u.tkip.tx.iv32; | |
243 | iv16 = key->u.tkip.tx.iv16; | |
244 | ||
245 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) | |
246 | drv_get_tkip_seq(sdata->local, | |
247 | key->conf.hw_key_idx, | |
248 | &iv32, &iv16); | |
249 | ||
250 | seq[0] = iv16 & 0xff; | |
251 | seq[1] = (iv16 >> 8) & 0xff; | |
252 | seq[2] = iv32 & 0xff; | |
253 | seq[3] = (iv32 >> 8) & 0xff; | |
254 | seq[4] = (iv32 >> 16) & 0xff; | |
255 | seq[5] = (iv32 >> 24) & 0xff; | |
256 | params.seq = seq; | |
257 | params.seq_len = 6; | |
258 | break; | |
259 | case ALG_CCMP: | |
260 | params.cipher = WLAN_CIPHER_SUITE_CCMP; | |
261 | seq[0] = key->u.ccmp.tx_pn[5]; | |
262 | seq[1] = key->u.ccmp.tx_pn[4]; | |
263 | seq[2] = key->u.ccmp.tx_pn[3]; | |
264 | seq[3] = key->u.ccmp.tx_pn[2]; | |
265 | seq[4] = key->u.ccmp.tx_pn[1]; | |
266 | seq[5] = key->u.ccmp.tx_pn[0]; | |
267 | params.seq = seq; | |
268 | params.seq_len = 6; | |
269 | break; | |
270 | case ALG_WEP: | |
271 | if (key->conf.keylen == 5) | |
272 | params.cipher = WLAN_CIPHER_SUITE_WEP40; | |
273 | else | |
274 | params.cipher = WLAN_CIPHER_SUITE_WEP104; | |
275 | break; | |
276 | case ALG_AES_CMAC: | |
277 | params.cipher = WLAN_CIPHER_SUITE_AES_CMAC; | |
278 | seq[0] = key->u.aes_cmac.tx_pn[5]; | |
279 | seq[1] = key->u.aes_cmac.tx_pn[4]; | |
280 | seq[2] = key->u.aes_cmac.tx_pn[3]; | |
281 | seq[3] = key->u.aes_cmac.tx_pn[2]; | |
282 | seq[4] = key->u.aes_cmac.tx_pn[1]; | |
283 | seq[5] = key->u.aes_cmac.tx_pn[0]; | |
284 | params.seq = seq; | |
285 | params.seq_len = 6; | |
286 | break; | |
287 | } | |
288 | ||
289 | params.key = key->conf.key; | |
290 | params.key_len = key->conf.keylen; | |
291 | ||
292 | callback(cookie, ¶ms); | |
293 | err = 0; | |
294 | ||
295 | out: | |
296 | rcu_read_unlock(); | |
297 | return err; | |
298 | } | |
299 | ||
300 | static int ieee80211_config_default_key(struct wiphy *wiphy, | |
301 | struct net_device *dev, | |
302 | u8 key_idx) | |
303 | { | |
304 | struct ieee80211_sub_if_data *sdata; | |
305 | ||
306 | rcu_read_lock(); | |
307 | ||
308 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
309 | ieee80211_set_default_key(sdata, key_idx); | |
310 | ||
311 | rcu_read_unlock(); | |
312 | ||
313 | return 0; | |
314 | } | |
315 | ||
316 | static int ieee80211_config_default_mgmt_key(struct wiphy *wiphy, | |
317 | struct net_device *dev, | |
318 | u8 key_idx) | |
319 | { | |
320 | struct ieee80211_sub_if_data *sdata; | |
321 | ||
322 | rcu_read_lock(); | |
323 | ||
324 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
325 | ieee80211_set_default_mgmt_key(sdata, key_idx); | |
326 | ||
327 | rcu_read_unlock(); | |
328 | ||
329 | return 0; | |
330 | } | |
331 | ||
332 | static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) | |
333 | { | |
334 | struct ieee80211_sub_if_data *sdata = sta->sdata; | |
335 | ||
336 | sinfo->filled = STATION_INFO_INACTIVE_TIME | | |
337 | STATION_INFO_RX_BYTES | | |
338 | STATION_INFO_TX_BYTES | | |
339 | STATION_INFO_RX_PACKETS | | |
340 | STATION_INFO_TX_PACKETS | | |
341 | STATION_INFO_TX_BITRATE; | |
342 | ||
343 | sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); | |
344 | sinfo->rx_bytes = sta->rx_bytes; | |
345 | sinfo->tx_bytes = sta->tx_bytes; | |
346 | sinfo->rx_packets = sta->rx_packets; | |
347 | sinfo->tx_packets = sta->tx_packets; | |
348 | ||
349 | if (sta->local->hw.flags & IEEE80211_HW_SIGNAL_DBM) { | |
350 | sinfo->filled |= STATION_INFO_SIGNAL; | |
351 | sinfo->signal = (s8)sta->last_signal; | |
352 | } | |
353 | ||
354 | sinfo->txrate.flags = 0; | |
355 | if (sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS) | |
356 | sinfo->txrate.flags |= RATE_INFO_FLAGS_MCS; | |
357 | if (sta->last_tx_rate.flags & IEEE80211_TX_RC_40_MHZ_WIDTH) | |
358 | sinfo->txrate.flags |= RATE_INFO_FLAGS_40_MHZ_WIDTH; | |
359 | if (sta->last_tx_rate.flags & IEEE80211_TX_RC_SHORT_GI) | |
360 | sinfo->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI; | |
361 | ||
362 | if (!(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS)) { | |
363 | struct ieee80211_supported_band *sband; | |
364 | sband = sta->local->hw.wiphy->bands[ | |
365 | sta->local->hw.conf.channel->band]; | |
366 | sinfo->txrate.legacy = | |
367 | sband->bitrates[sta->last_tx_rate.idx].bitrate; | |
368 | } else | |
369 | sinfo->txrate.mcs = sta->last_tx_rate.idx; | |
370 | ||
371 | if (ieee80211_vif_is_mesh(&sdata->vif)) { | |
372 | #ifdef CONFIG_MAC80211_MESH | |
373 | sinfo->filled |= STATION_INFO_LLID | | |
374 | STATION_INFO_PLID | | |
375 | STATION_INFO_PLINK_STATE; | |
376 | ||
377 | sinfo->llid = le16_to_cpu(sta->llid); | |
378 | sinfo->plid = le16_to_cpu(sta->plid); | |
379 | sinfo->plink_state = sta->plink_state; | |
380 | #endif | |
381 | } | |
382 | } | |
383 | ||
384 | ||
385 | static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, | |
386 | int idx, u8 *mac, struct station_info *sinfo) | |
387 | { | |
388 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
389 | struct sta_info *sta; | |
390 | int ret = -ENOENT; | |
391 | ||
392 | rcu_read_lock(); | |
393 | ||
394 | sta = sta_info_get_by_idx(local, idx, dev); | |
395 | if (sta) { | |
396 | ret = 0; | |
397 | memcpy(mac, sta->sta.addr, ETH_ALEN); | |
398 | sta_set_sinfo(sta, sinfo); | |
399 | } | |
400 | ||
401 | rcu_read_unlock(); | |
402 | ||
403 | return ret; | |
404 | } | |
405 | ||
406 | static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, | |
407 | u8 *mac, struct station_info *sinfo) | |
408 | { | |
409 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
410 | struct sta_info *sta; | |
411 | int ret = -ENOENT; | |
412 | ||
413 | rcu_read_lock(); | |
414 | ||
415 | /* XXX: verify sta->dev == dev */ | |
416 | ||
417 | sta = sta_info_get(local, mac); | |
418 | if (sta) { | |
419 | ret = 0; | |
420 | sta_set_sinfo(sta, sinfo); | |
421 | } | |
422 | ||
423 | rcu_read_unlock(); | |
424 | ||
425 | return ret; | |
426 | } | |
427 | ||
428 | /* | |
429 | * This handles both adding a beacon and setting new beacon info | |
430 | */ | |
431 | static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, | |
432 | struct beacon_parameters *params) | |
433 | { | |
434 | struct beacon_data *new, *old; | |
435 | int new_head_len, new_tail_len; | |
436 | int size; | |
437 | int err = -EINVAL; | |
438 | ||
439 | old = sdata->u.ap.beacon; | |
440 | ||
441 | /* head must not be zero-length */ | |
442 | if (params->head && !params->head_len) | |
443 | return -EINVAL; | |
444 | ||
445 | /* | |
446 | * This is a kludge. beacon interval should really be part | |
447 | * of the beacon information. | |
448 | */ | |
449 | if (params->interval && | |
450 | (sdata->vif.bss_conf.beacon_int != params->interval)) { | |
451 | sdata->vif.bss_conf.beacon_int = params->interval; | |
452 | ieee80211_bss_info_change_notify(sdata, | |
453 | BSS_CHANGED_BEACON_INT); | |
454 | } | |
455 | ||
456 | /* Need to have a beacon head if we don't have one yet */ | |
457 | if (!params->head && !old) | |
458 | return err; | |
459 | ||
460 | /* sorry, no way to start beaconing without dtim period */ | |
461 | if (!params->dtim_period && !old) | |
462 | return err; | |
463 | ||
464 | /* new or old head? */ | |
465 | if (params->head) | |
466 | new_head_len = params->head_len; | |
467 | else | |
468 | new_head_len = old->head_len; | |
469 | ||
470 | /* new or old tail? */ | |
471 | if (params->tail || !old) | |
472 | /* params->tail_len will be zero for !params->tail */ | |
473 | new_tail_len = params->tail_len; | |
474 | else | |
475 | new_tail_len = old->tail_len; | |
476 | ||
477 | size = sizeof(*new) + new_head_len + new_tail_len; | |
478 | ||
479 | new = kzalloc(size, GFP_KERNEL); | |
480 | if (!new) | |
481 | return -ENOMEM; | |
482 | ||
483 | /* start filling the new info now */ | |
484 | ||
485 | /* new or old dtim period? */ | |
486 | if (params->dtim_period) | |
487 | new->dtim_period = params->dtim_period; | |
488 | else | |
489 | new->dtim_period = old->dtim_period; | |
490 | ||
491 | /* | |
492 | * pointers go into the block we allocated, | |
493 | * memory is | beacon_data | head | tail | | |
494 | */ | |
495 | new->head = ((u8 *) new) + sizeof(*new); | |
496 | new->tail = new->head + new_head_len; | |
497 | new->head_len = new_head_len; | |
498 | new->tail_len = new_tail_len; | |
499 | ||
500 | /* copy in head */ | |
501 | if (params->head) | |
502 | memcpy(new->head, params->head, new_head_len); | |
503 | else | |
504 | memcpy(new->head, old->head, new_head_len); | |
505 | ||
506 | /* copy in optional tail */ | |
507 | if (params->tail) | |
508 | memcpy(new->tail, params->tail, new_tail_len); | |
509 | else | |
510 | if (old) | |
511 | memcpy(new->tail, old->tail, new_tail_len); | |
512 | ||
513 | rcu_assign_pointer(sdata->u.ap.beacon, new); | |
514 | ||
515 | synchronize_rcu(); | |
516 | ||
517 | kfree(old); | |
518 | ||
519 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED | | |
520 | BSS_CHANGED_BEACON); | |
521 | return 0; | |
522 | } | |
523 | ||
524 | static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, | |
525 | struct beacon_parameters *params) | |
526 | { | |
527 | struct ieee80211_sub_if_data *sdata; | |
528 | struct beacon_data *old; | |
529 | ||
530 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
531 | ||
532 | old = sdata->u.ap.beacon; | |
533 | ||
534 | if (old) | |
535 | return -EALREADY; | |
536 | ||
537 | return ieee80211_config_beacon(sdata, params); | |
538 | } | |
539 | ||
540 | static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, | |
541 | struct beacon_parameters *params) | |
542 | { | |
543 | struct ieee80211_sub_if_data *sdata; | |
544 | struct beacon_data *old; | |
545 | ||
546 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
547 | ||
548 | old = sdata->u.ap.beacon; | |
549 | ||
550 | if (!old) | |
551 | return -ENOENT; | |
552 | ||
553 | return ieee80211_config_beacon(sdata, params); | |
554 | } | |
555 | ||
556 | static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) | |
557 | { | |
558 | struct ieee80211_sub_if_data *sdata; | |
559 | struct beacon_data *old; | |
560 | ||
561 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
562 | ||
563 | old = sdata->u.ap.beacon; | |
564 | ||
565 | if (!old) | |
566 | return -ENOENT; | |
567 | ||
568 | rcu_assign_pointer(sdata->u.ap.beacon, NULL); | |
569 | synchronize_rcu(); | |
570 | kfree(old); | |
571 | ||
572 | ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_BEACON_ENABLED); | |
573 | return 0; | |
574 | } | |
575 | ||
576 | /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ | |
577 | struct iapp_layer2_update { | |
578 | u8 da[ETH_ALEN]; /* broadcast */ | |
579 | u8 sa[ETH_ALEN]; /* STA addr */ | |
580 | __be16 len; /* 6 */ | |
581 | u8 dsap; /* 0 */ | |
582 | u8 ssap; /* 0 */ | |
583 | u8 control; | |
584 | u8 xid_info[3]; | |
585 | } __attribute__ ((packed)); | |
586 | ||
587 | static void ieee80211_send_layer2_update(struct sta_info *sta) | |
588 | { | |
589 | struct iapp_layer2_update *msg; | |
590 | struct sk_buff *skb; | |
591 | ||
592 | /* Send Level 2 Update Frame to update forwarding tables in layer 2 | |
593 | * bridge devices */ | |
594 | ||
595 | skb = dev_alloc_skb(sizeof(*msg)); | |
596 | if (!skb) | |
597 | return; | |
598 | msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); | |
599 | ||
600 | /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) | |
601 | * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ | |
602 | ||
603 | memset(msg->da, 0xff, ETH_ALEN); | |
604 | memcpy(msg->sa, sta->sta.addr, ETH_ALEN); | |
605 | msg->len = htons(6); | |
606 | msg->dsap = 0; | |
607 | msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ | |
608 | msg->control = 0xaf; /* XID response lsb.1111F101. | |
609 | * F=0 (no poll command; unsolicited frame) */ | |
610 | msg->xid_info[0] = 0x81; /* XID format identifier */ | |
611 | msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ | |
612 | msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ | |
613 | ||
614 | skb->dev = sta->sdata->dev; | |
615 | skb->protocol = eth_type_trans(skb, sta->sdata->dev); | |
616 | memset(skb->cb, 0, sizeof(skb->cb)); | |
617 | netif_rx(skb); | |
618 | } | |
619 | ||
620 | static void sta_apply_parameters(struct ieee80211_local *local, | |
621 | struct sta_info *sta, | |
622 | struct station_parameters *params) | |
623 | { | |
624 | u32 rates; | |
625 | int i, j; | |
626 | struct ieee80211_supported_band *sband; | |
627 | struct ieee80211_sub_if_data *sdata = sta->sdata; | |
628 | u32 mask, set; | |
629 | ||
630 | sband = local->hw.wiphy->bands[local->oper_channel->band]; | |
631 | ||
632 | spin_lock_bh(&sta->lock); | |
633 | mask = params->sta_flags_mask; | |
634 | set = params->sta_flags_set; | |
635 | ||
636 | if (mask & BIT(NL80211_STA_FLAG_AUTHORIZED)) { | |
637 | sta->flags &= ~WLAN_STA_AUTHORIZED; | |
638 | if (set & BIT(NL80211_STA_FLAG_AUTHORIZED)) | |
639 | sta->flags |= WLAN_STA_AUTHORIZED; | |
640 | } | |
641 | ||
642 | if (mask & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) { | |
643 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
644 | if (set & BIT(NL80211_STA_FLAG_SHORT_PREAMBLE)) | |
645 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
646 | } | |
647 | ||
648 | if (mask & BIT(NL80211_STA_FLAG_WME)) { | |
649 | sta->flags &= ~WLAN_STA_WME; | |
650 | if (set & BIT(NL80211_STA_FLAG_WME)) | |
651 | sta->flags |= WLAN_STA_WME; | |
652 | } | |
653 | ||
654 | if (mask & BIT(NL80211_STA_FLAG_MFP)) { | |
655 | sta->flags &= ~WLAN_STA_MFP; | |
656 | if (set & BIT(NL80211_STA_FLAG_MFP)) | |
657 | sta->flags |= WLAN_STA_MFP; | |
658 | } | |
659 | spin_unlock_bh(&sta->lock); | |
660 | ||
661 | /* | |
662 | * cfg80211 validates this (1-2007) and allows setting the AID | |
663 | * only when creating a new station entry | |
664 | */ | |
665 | if (params->aid) | |
666 | sta->sta.aid = params->aid; | |
667 | ||
668 | /* | |
669 | * FIXME: updating the following information is racy when this | |
670 | * function is called from ieee80211_change_station(). | |
671 | * However, all this information should be static so | |
672 | * maybe we should just reject attemps to change it. | |
673 | */ | |
674 | ||
675 | if (params->listen_interval >= 0) | |
676 | sta->listen_interval = params->listen_interval; | |
677 | ||
678 | if (params->supported_rates) { | |
679 | rates = 0; | |
680 | ||
681 | for (i = 0; i < params->supported_rates_len; i++) { | |
682 | int rate = (params->supported_rates[i] & 0x7f) * 5; | |
683 | for (j = 0; j < sband->n_bitrates; j++) { | |
684 | if (sband->bitrates[j].bitrate == rate) | |
685 | rates |= BIT(j); | |
686 | } | |
687 | } | |
688 | sta->sta.supp_rates[local->oper_channel->band] = rates; | |
689 | } | |
690 | ||
691 | if (params->ht_capa) | |
692 | ieee80211_ht_cap_ie_to_sta_ht_cap(sband, | |
693 | params->ht_capa, | |
694 | &sta->sta.ht_cap); | |
695 | ||
696 | if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { | |
697 | switch (params->plink_action) { | |
698 | case PLINK_ACTION_OPEN: | |
699 | mesh_plink_open(sta); | |
700 | break; | |
701 | case PLINK_ACTION_BLOCK: | |
702 | mesh_plink_block(sta); | |
703 | break; | |
704 | } | |
705 | } | |
706 | } | |
707 | ||
708 | static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, | |
709 | u8 *mac, struct station_parameters *params) | |
710 | { | |
711 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
712 | struct sta_info *sta; | |
713 | struct ieee80211_sub_if_data *sdata; | |
714 | int err; | |
715 | int layer2_update; | |
716 | ||
717 | if (params->vlan) { | |
718 | sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); | |
719 | ||
720 | if (sdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
721 | sdata->vif.type != NL80211_IFTYPE_AP) | |
722 | return -EINVAL; | |
723 | } else | |
724 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
725 | ||
726 | if (compare_ether_addr(mac, dev->dev_addr) == 0) | |
727 | return -EINVAL; | |
728 | ||
729 | if (is_multicast_ether_addr(mac)) | |
730 | return -EINVAL; | |
731 | ||
732 | sta = sta_info_alloc(sdata, mac, GFP_KERNEL); | |
733 | if (!sta) | |
734 | return -ENOMEM; | |
735 | ||
736 | sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; | |
737 | ||
738 | sta_apply_parameters(local, sta, params); | |
739 | ||
740 | rate_control_rate_init(sta); | |
741 | ||
742 | layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN || | |
743 | sdata->vif.type == NL80211_IFTYPE_AP; | |
744 | ||
745 | rcu_read_lock(); | |
746 | ||
747 | err = sta_info_insert(sta); | |
748 | if (err) { | |
749 | /* STA has been freed */ | |
750 | if (err == -EEXIST && layer2_update) { | |
751 | /* Need to update layer 2 devices on reassociation */ | |
752 | sta = sta_info_get(local, mac); | |
753 | if (sta) | |
754 | ieee80211_send_layer2_update(sta); | |
755 | } | |
756 | rcu_read_unlock(); | |
757 | return err; | |
758 | } | |
759 | ||
760 | if (layer2_update) | |
761 | ieee80211_send_layer2_update(sta); | |
762 | ||
763 | rcu_read_unlock(); | |
764 | ||
765 | return 0; | |
766 | } | |
767 | ||
768 | static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, | |
769 | u8 *mac) | |
770 | { | |
771 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
772 | struct ieee80211_sub_if_data *sdata; | |
773 | struct sta_info *sta; | |
774 | ||
775 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
776 | ||
777 | if (mac) { | |
778 | rcu_read_lock(); | |
779 | ||
780 | /* XXX: get sta belonging to dev */ | |
781 | sta = sta_info_get(local, mac); | |
782 | if (!sta) { | |
783 | rcu_read_unlock(); | |
784 | return -ENOENT; | |
785 | } | |
786 | ||
787 | sta_info_unlink(&sta); | |
788 | rcu_read_unlock(); | |
789 | ||
790 | sta_info_destroy(sta); | |
791 | } else | |
792 | sta_info_flush(local, sdata); | |
793 | ||
794 | return 0; | |
795 | } | |
796 | ||
797 | static int ieee80211_change_station(struct wiphy *wiphy, | |
798 | struct net_device *dev, | |
799 | u8 *mac, | |
800 | struct station_parameters *params) | |
801 | { | |
802 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
803 | struct sta_info *sta; | |
804 | struct ieee80211_sub_if_data *vlansdata; | |
805 | ||
806 | rcu_read_lock(); | |
807 | ||
808 | /* XXX: get sta belonging to dev */ | |
809 | sta = sta_info_get(local, mac); | |
810 | if (!sta) { | |
811 | rcu_read_unlock(); | |
812 | return -ENOENT; | |
813 | } | |
814 | ||
815 | if (params->vlan && params->vlan != sta->sdata->dev) { | |
816 | vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); | |
817 | ||
818 | if (vlansdata->vif.type != NL80211_IFTYPE_AP_VLAN && | |
819 | vlansdata->vif.type != NL80211_IFTYPE_AP) { | |
820 | rcu_read_unlock(); | |
821 | return -EINVAL; | |
822 | } | |
823 | ||
824 | sta->sdata = vlansdata; | |
825 | ieee80211_send_layer2_update(sta); | |
826 | } | |
827 | ||
828 | sta_apply_parameters(local, sta, params); | |
829 | ||
830 | rcu_read_unlock(); | |
831 | ||
832 | return 0; | |
833 | } | |
834 | ||
835 | #ifdef CONFIG_MAC80211_MESH | |
836 | static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, | |
837 | u8 *dst, u8 *next_hop) | |
838 | { | |
839 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
840 | struct ieee80211_sub_if_data *sdata; | |
841 | struct mesh_path *mpath; | |
842 | struct sta_info *sta; | |
843 | int err; | |
844 | ||
845 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
846 | ||
847 | rcu_read_lock(); | |
848 | sta = sta_info_get(local, next_hop); | |
849 | if (!sta) { | |
850 | rcu_read_unlock(); | |
851 | return -ENOENT; | |
852 | } | |
853 | ||
854 | err = mesh_path_add(dst, sdata); | |
855 | if (err) { | |
856 | rcu_read_unlock(); | |
857 | return err; | |
858 | } | |
859 | ||
860 | mpath = mesh_path_lookup(dst, sdata); | |
861 | if (!mpath) { | |
862 | rcu_read_unlock(); | |
863 | return -ENXIO; | |
864 | } | |
865 | mesh_path_fix_nexthop(mpath, sta); | |
866 | ||
867 | rcu_read_unlock(); | |
868 | return 0; | |
869 | } | |
870 | ||
871 | static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, | |
872 | u8 *dst) | |
873 | { | |
874 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
875 | ||
876 | if (dst) | |
877 | return mesh_path_del(dst, sdata); | |
878 | ||
879 | mesh_path_flush(sdata); | |
880 | return 0; | |
881 | } | |
882 | ||
883 | static int ieee80211_change_mpath(struct wiphy *wiphy, | |
884 | struct net_device *dev, | |
885 | u8 *dst, u8 *next_hop) | |
886 | { | |
887 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
888 | struct ieee80211_sub_if_data *sdata; | |
889 | struct mesh_path *mpath; | |
890 | struct sta_info *sta; | |
891 | ||
892 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
893 | ||
894 | rcu_read_lock(); | |
895 | ||
896 | sta = sta_info_get(local, next_hop); | |
897 | if (!sta) { | |
898 | rcu_read_unlock(); | |
899 | return -ENOENT; | |
900 | } | |
901 | ||
902 | mpath = mesh_path_lookup(dst, sdata); | |
903 | if (!mpath) { | |
904 | rcu_read_unlock(); | |
905 | return -ENOENT; | |
906 | } | |
907 | ||
908 | mesh_path_fix_nexthop(mpath, sta); | |
909 | ||
910 | rcu_read_unlock(); | |
911 | return 0; | |
912 | } | |
913 | ||
914 | static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, | |
915 | struct mpath_info *pinfo) | |
916 | { | |
917 | if (mpath->next_hop) | |
918 | memcpy(next_hop, mpath->next_hop->sta.addr, ETH_ALEN); | |
919 | else | |
920 | memset(next_hop, 0, ETH_ALEN); | |
921 | ||
922 | pinfo->filled = MPATH_INFO_FRAME_QLEN | | |
923 | MPATH_INFO_DSN | | |
924 | MPATH_INFO_METRIC | | |
925 | MPATH_INFO_EXPTIME | | |
926 | MPATH_INFO_DISCOVERY_TIMEOUT | | |
927 | MPATH_INFO_DISCOVERY_RETRIES | | |
928 | MPATH_INFO_FLAGS; | |
929 | ||
930 | pinfo->frame_qlen = mpath->frame_queue.qlen; | |
931 | pinfo->dsn = mpath->dsn; | |
932 | pinfo->metric = mpath->metric; | |
933 | if (time_before(jiffies, mpath->exp_time)) | |
934 | pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); | |
935 | pinfo->discovery_timeout = | |
936 | jiffies_to_msecs(mpath->discovery_timeout); | |
937 | pinfo->discovery_retries = mpath->discovery_retries; | |
938 | pinfo->flags = 0; | |
939 | if (mpath->flags & MESH_PATH_ACTIVE) | |
940 | pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; | |
941 | if (mpath->flags & MESH_PATH_RESOLVING) | |
942 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; | |
943 | if (mpath->flags & MESH_PATH_DSN_VALID) | |
944 | pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID; | |
945 | if (mpath->flags & MESH_PATH_FIXED) | |
946 | pinfo->flags |= NL80211_MPATH_FLAG_FIXED; | |
947 | if (mpath->flags & MESH_PATH_RESOLVING) | |
948 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; | |
949 | ||
950 | pinfo->flags = mpath->flags; | |
951 | } | |
952 | ||
953 | static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, | |
954 | u8 *dst, u8 *next_hop, struct mpath_info *pinfo) | |
955 | ||
956 | { | |
957 | struct ieee80211_sub_if_data *sdata; | |
958 | struct mesh_path *mpath; | |
959 | ||
960 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
961 | ||
962 | rcu_read_lock(); | |
963 | mpath = mesh_path_lookup(dst, sdata); | |
964 | if (!mpath) { | |
965 | rcu_read_unlock(); | |
966 | return -ENOENT; | |
967 | } | |
968 | memcpy(dst, mpath->dst, ETH_ALEN); | |
969 | mpath_set_pinfo(mpath, next_hop, pinfo); | |
970 | rcu_read_unlock(); | |
971 | return 0; | |
972 | } | |
973 | ||
974 | static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, | |
975 | int idx, u8 *dst, u8 *next_hop, | |
976 | struct mpath_info *pinfo) | |
977 | { | |
978 | struct ieee80211_sub_if_data *sdata; | |
979 | struct mesh_path *mpath; | |
980 | ||
981 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
982 | ||
983 | rcu_read_lock(); | |
984 | mpath = mesh_path_lookup_by_idx(idx, sdata); | |
985 | if (!mpath) { | |
986 | rcu_read_unlock(); | |
987 | return -ENOENT; | |
988 | } | |
989 | memcpy(dst, mpath->dst, ETH_ALEN); | |
990 | mpath_set_pinfo(mpath, next_hop, pinfo); | |
991 | rcu_read_unlock(); | |
992 | return 0; | |
993 | } | |
994 | ||
995 | static int ieee80211_get_mesh_params(struct wiphy *wiphy, | |
996 | struct net_device *dev, | |
997 | struct mesh_config *conf) | |
998 | { | |
999 | struct ieee80211_sub_if_data *sdata; | |
1000 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1001 | ||
1002 | memcpy(conf, &(sdata->u.mesh.mshcfg), sizeof(struct mesh_config)); | |
1003 | return 0; | |
1004 | } | |
1005 | ||
1006 | static inline bool _chg_mesh_attr(enum nl80211_meshconf_params parm, u32 mask) | |
1007 | { | |
1008 | return (mask >> (parm-1)) & 0x1; | |
1009 | } | |
1010 | ||
1011 | static int ieee80211_set_mesh_params(struct wiphy *wiphy, | |
1012 | struct net_device *dev, | |
1013 | const struct mesh_config *nconf, u32 mask) | |
1014 | { | |
1015 | struct mesh_config *conf; | |
1016 | struct ieee80211_sub_if_data *sdata; | |
1017 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1018 | ||
1019 | /* Set the config options which we are interested in setting */ | |
1020 | conf = &(sdata->u.mesh.mshcfg); | |
1021 | if (_chg_mesh_attr(NL80211_MESHCONF_RETRY_TIMEOUT, mask)) | |
1022 | conf->dot11MeshRetryTimeout = nconf->dot11MeshRetryTimeout; | |
1023 | if (_chg_mesh_attr(NL80211_MESHCONF_CONFIRM_TIMEOUT, mask)) | |
1024 | conf->dot11MeshConfirmTimeout = nconf->dot11MeshConfirmTimeout; | |
1025 | if (_chg_mesh_attr(NL80211_MESHCONF_HOLDING_TIMEOUT, mask)) | |
1026 | conf->dot11MeshHoldingTimeout = nconf->dot11MeshHoldingTimeout; | |
1027 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_PEER_LINKS, mask)) | |
1028 | conf->dot11MeshMaxPeerLinks = nconf->dot11MeshMaxPeerLinks; | |
1029 | if (_chg_mesh_attr(NL80211_MESHCONF_MAX_RETRIES, mask)) | |
1030 | conf->dot11MeshMaxRetries = nconf->dot11MeshMaxRetries; | |
1031 | if (_chg_mesh_attr(NL80211_MESHCONF_TTL, mask)) | |
1032 | conf->dot11MeshTTL = nconf->dot11MeshTTL; | |
1033 | if (_chg_mesh_attr(NL80211_MESHCONF_AUTO_OPEN_PLINKS, mask)) | |
1034 | conf->auto_open_plinks = nconf->auto_open_plinks; | |
1035 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_MAX_PREQ_RETRIES, mask)) | |
1036 | conf->dot11MeshHWMPmaxPREQretries = | |
1037 | nconf->dot11MeshHWMPmaxPREQretries; | |
1038 | if (_chg_mesh_attr(NL80211_MESHCONF_PATH_REFRESH_TIME, mask)) | |
1039 | conf->path_refresh_time = nconf->path_refresh_time; | |
1040 | if (_chg_mesh_attr(NL80211_MESHCONF_MIN_DISCOVERY_TIMEOUT, mask)) | |
1041 | conf->min_discovery_timeout = nconf->min_discovery_timeout; | |
1042 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_ACTIVE_PATH_TIMEOUT, mask)) | |
1043 | conf->dot11MeshHWMPactivePathTimeout = | |
1044 | nconf->dot11MeshHWMPactivePathTimeout; | |
1045 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_PREQ_MIN_INTERVAL, mask)) | |
1046 | conf->dot11MeshHWMPpreqMinInterval = | |
1047 | nconf->dot11MeshHWMPpreqMinInterval; | |
1048 | if (_chg_mesh_attr(NL80211_MESHCONF_HWMP_NET_DIAM_TRVS_TIME, | |
1049 | mask)) | |
1050 | conf->dot11MeshHWMPnetDiameterTraversalTime = | |
1051 | nconf->dot11MeshHWMPnetDiameterTraversalTime; | |
1052 | return 0; | |
1053 | } | |
1054 | ||
1055 | #endif | |
1056 | ||
1057 | static int ieee80211_change_bss(struct wiphy *wiphy, | |
1058 | struct net_device *dev, | |
1059 | struct bss_parameters *params) | |
1060 | { | |
1061 | struct ieee80211_sub_if_data *sdata; | |
1062 | u32 changed = 0; | |
1063 | ||
1064 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1065 | ||
1066 | if (params->use_cts_prot >= 0) { | |
1067 | sdata->vif.bss_conf.use_cts_prot = params->use_cts_prot; | |
1068 | changed |= BSS_CHANGED_ERP_CTS_PROT; | |
1069 | } | |
1070 | if (params->use_short_preamble >= 0) { | |
1071 | sdata->vif.bss_conf.use_short_preamble = | |
1072 | params->use_short_preamble; | |
1073 | changed |= BSS_CHANGED_ERP_PREAMBLE; | |
1074 | } | |
1075 | if (params->use_short_slot_time >= 0) { | |
1076 | sdata->vif.bss_conf.use_short_slot = | |
1077 | params->use_short_slot_time; | |
1078 | changed |= BSS_CHANGED_ERP_SLOT; | |
1079 | } | |
1080 | ||
1081 | if (params->basic_rates) { | |
1082 | int i, j; | |
1083 | u32 rates = 0; | |
1084 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1085 | struct ieee80211_supported_band *sband = | |
1086 | wiphy->bands[local->oper_channel->band]; | |
1087 | ||
1088 | for (i = 0; i < params->basic_rates_len; i++) { | |
1089 | int rate = (params->basic_rates[i] & 0x7f) * 5; | |
1090 | for (j = 0; j < sband->n_bitrates; j++) { | |
1091 | if (sband->bitrates[j].bitrate == rate) | |
1092 | rates |= BIT(j); | |
1093 | } | |
1094 | } | |
1095 | sdata->vif.bss_conf.basic_rates = rates; | |
1096 | changed |= BSS_CHANGED_BASIC_RATES; | |
1097 | } | |
1098 | ||
1099 | ieee80211_bss_info_change_notify(sdata, changed); | |
1100 | ||
1101 | return 0; | |
1102 | } | |
1103 | ||
1104 | static int ieee80211_set_txq_params(struct wiphy *wiphy, | |
1105 | struct ieee80211_txq_params *params) | |
1106 | { | |
1107 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1108 | struct ieee80211_tx_queue_params p; | |
1109 | ||
1110 | if (!local->ops->conf_tx) | |
1111 | return -EOPNOTSUPP; | |
1112 | ||
1113 | memset(&p, 0, sizeof(p)); | |
1114 | p.aifs = params->aifs; | |
1115 | p.cw_max = params->cwmax; | |
1116 | p.cw_min = params->cwmin; | |
1117 | p.txop = params->txop; | |
1118 | if (drv_conf_tx(local, params->queue, &p)) { | |
1119 | printk(KERN_DEBUG "%s: failed to set TX queue " | |
1120 | "parameters for queue %d\n", | |
1121 | wiphy_name(local->hw.wiphy), params->queue); | |
1122 | return -EINVAL; | |
1123 | } | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int ieee80211_set_channel(struct wiphy *wiphy, | |
1129 | struct ieee80211_channel *chan, | |
1130 | enum nl80211_channel_type channel_type) | |
1131 | { | |
1132 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1133 | ||
1134 | local->oper_channel = chan; | |
1135 | local->oper_channel_type = channel_type; | |
1136 | ||
1137 | return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL); | |
1138 | } | |
1139 | ||
1140 | #ifdef CONFIG_PM | |
1141 | static int ieee80211_suspend(struct wiphy *wiphy) | |
1142 | { | |
1143 | return __ieee80211_suspend(wiphy_priv(wiphy)); | |
1144 | } | |
1145 | ||
1146 | static int ieee80211_resume(struct wiphy *wiphy) | |
1147 | { | |
1148 | return __ieee80211_resume(wiphy_priv(wiphy)); | |
1149 | } | |
1150 | #else | |
1151 | #define ieee80211_suspend NULL | |
1152 | #define ieee80211_resume NULL | |
1153 | #endif | |
1154 | ||
1155 | static int ieee80211_scan(struct wiphy *wiphy, | |
1156 | struct net_device *dev, | |
1157 | struct cfg80211_scan_request *req) | |
1158 | { | |
1159 | struct ieee80211_sub_if_data *sdata; | |
1160 | ||
1161 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1162 | ||
1163 | if (sdata->vif.type != NL80211_IFTYPE_STATION && | |
1164 | sdata->vif.type != NL80211_IFTYPE_ADHOC && | |
1165 | sdata->vif.type != NL80211_IFTYPE_MESH_POINT && | |
1166 | (sdata->vif.type != NL80211_IFTYPE_AP || sdata->u.ap.beacon)) | |
1167 | return -EOPNOTSUPP; | |
1168 | ||
1169 | return ieee80211_request_scan(sdata, req); | |
1170 | } | |
1171 | ||
1172 | static int ieee80211_auth(struct wiphy *wiphy, struct net_device *dev, | |
1173 | struct cfg80211_auth_request *req) | |
1174 | { | |
1175 | struct ieee80211_sub_if_data *sdata; | |
1176 | ||
1177 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1178 | ||
1179 | switch (req->auth_type) { | |
1180 | case NL80211_AUTHTYPE_OPEN_SYSTEM: | |
1181 | sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_OPEN; | |
1182 | break; | |
1183 | case NL80211_AUTHTYPE_SHARED_KEY: | |
1184 | sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_SHARED_KEY; | |
1185 | break; | |
1186 | case NL80211_AUTHTYPE_FT: | |
1187 | sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_FT; | |
1188 | break; | |
1189 | case NL80211_AUTHTYPE_NETWORK_EAP: | |
1190 | sdata->u.mgd.auth_algs = IEEE80211_AUTH_ALG_LEAP; | |
1191 | break; | |
1192 | default: | |
1193 | return -EOPNOTSUPP; | |
1194 | } | |
1195 | ||
1196 | memcpy(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN); | |
1197 | sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; | |
1198 | sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET; | |
1199 | ||
1200 | /* TODO: req->chan */ | |
1201 | sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; | |
1202 | ||
1203 | if (req->ssid) { | |
1204 | sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET; | |
1205 | memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len); | |
1206 | sdata->u.mgd.ssid_len = req->ssid_len; | |
1207 | sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; | |
1208 | } | |
1209 | ||
1210 | kfree(sdata->u.mgd.sme_auth_ie); | |
1211 | sdata->u.mgd.sme_auth_ie = NULL; | |
1212 | sdata->u.mgd.sme_auth_ie_len = 0; | |
1213 | if (req->ie) { | |
1214 | sdata->u.mgd.sme_auth_ie = kmalloc(req->ie_len, GFP_KERNEL); | |
1215 | if (sdata->u.mgd.sme_auth_ie == NULL) | |
1216 | return -ENOMEM; | |
1217 | memcpy(sdata->u.mgd.sme_auth_ie, req->ie, req->ie_len); | |
1218 | sdata->u.mgd.sme_auth_ie_len = req->ie_len; | |
1219 | } | |
1220 | ||
1221 | sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME; | |
1222 | sdata->u.mgd.state = IEEE80211_STA_MLME_DIRECT_PROBE; | |
1223 | ieee80211_sta_req_auth(sdata); | |
1224 | return 0; | |
1225 | } | |
1226 | ||
1227 | static int ieee80211_assoc(struct wiphy *wiphy, struct net_device *dev, | |
1228 | struct cfg80211_assoc_request *req) | |
1229 | { | |
1230 | struct ieee80211_sub_if_data *sdata; | |
1231 | int ret; | |
1232 | ||
1233 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1234 | ||
1235 | if (memcmp(sdata->u.mgd.bssid, req->peer_addr, ETH_ALEN) != 0 || | |
1236 | !(sdata->u.mgd.flags & IEEE80211_STA_AUTHENTICATED)) | |
1237 | return -ENOLINK; /* not authenticated */ | |
1238 | ||
1239 | sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL; | |
1240 | sdata->u.mgd.flags |= IEEE80211_STA_BSSID_SET; | |
1241 | ||
1242 | /* TODO: req->chan */ | |
1243 | sdata->u.mgd.flags |= IEEE80211_STA_AUTO_CHANNEL_SEL; | |
1244 | ||
1245 | if (req->ssid) { | |
1246 | sdata->u.mgd.flags |= IEEE80211_STA_SSID_SET; | |
1247 | memcpy(sdata->u.mgd.ssid, req->ssid, req->ssid_len); | |
1248 | sdata->u.mgd.ssid_len = req->ssid_len; | |
1249 | sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL; | |
1250 | } else | |
1251 | sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL; | |
1252 | ||
1253 | ret = ieee80211_sta_set_extra_ie(sdata, req->ie, req->ie_len); | |
1254 | if (ret && ret != -EALREADY) | |
1255 | return ret; | |
1256 | ||
1257 | if (req->use_mfp) { | |
1258 | sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED; | |
1259 | sdata->u.mgd.flags |= IEEE80211_STA_MFP_ENABLED; | |
1260 | } else { | |
1261 | sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED; | |
1262 | sdata->u.mgd.flags &= ~IEEE80211_STA_MFP_ENABLED; | |
1263 | } | |
1264 | ||
1265 | if (req->control_port) | |
1266 | sdata->u.mgd.flags |= IEEE80211_STA_CONTROL_PORT; | |
1267 | else | |
1268 | sdata->u.mgd.flags &= ~IEEE80211_STA_CONTROL_PORT; | |
1269 | ||
1270 | sdata->u.mgd.flags |= IEEE80211_STA_EXT_SME; | |
1271 | sdata->u.mgd.state = IEEE80211_STA_MLME_ASSOCIATE; | |
1272 | ieee80211_sta_req_auth(sdata); | |
1273 | return 0; | |
1274 | } | |
1275 | ||
1276 | static int ieee80211_deauth(struct wiphy *wiphy, struct net_device *dev, | |
1277 | struct cfg80211_deauth_request *req) | |
1278 | { | |
1279 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1280 | ||
1281 | /* TODO: req->ie, req->peer_addr */ | |
1282 | return ieee80211_sta_deauthenticate(sdata, req->reason_code); | |
1283 | } | |
1284 | ||
1285 | static int ieee80211_disassoc(struct wiphy *wiphy, struct net_device *dev, | |
1286 | struct cfg80211_disassoc_request *req) | |
1287 | { | |
1288 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1289 | ||
1290 | /* TODO: req->ie, req->peer_addr */ | |
1291 | return ieee80211_sta_disassociate(sdata, req->reason_code); | |
1292 | } | |
1293 | ||
1294 | static int ieee80211_join_ibss(struct wiphy *wiphy, struct net_device *dev, | |
1295 | struct cfg80211_ibss_params *params) | |
1296 | { | |
1297 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1298 | ||
1299 | return ieee80211_ibss_join(sdata, params); | |
1300 | } | |
1301 | ||
1302 | static int ieee80211_leave_ibss(struct wiphy *wiphy, struct net_device *dev) | |
1303 | { | |
1304 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
1305 | ||
1306 | return ieee80211_ibss_leave(sdata); | |
1307 | } | |
1308 | ||
1309 | static int ieee80211_set_wiphy_params(struct wiphy *wiphy, u32 changed) | |
1310 | { | |
1311 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1312 | int err; | |
1313 | ||
1314 | if (changed & WIPHY_PARAM_RTS_THRESHOLD) { | |
1315 | err = drv_set_rts_threshold(local, wiphy->rts_threshold); | |
1316 | ||
1317 | if (err) | |
1318 | return err; | |
1319 | } | |
1320 | ||
1321 | if (changed & WIPHY_PARAM_RETRY_SHORT) | |
1322 | local->hw.conf.short_frame_max_tx_count = wiphy->retry_short; | |
1323 | if (changed & WIPHY_PARAM_RETRY_LONG) | |
1324 | local->hw.conf.long_frame_max_tx_count = wiphy->retry_long; | |
1325 | if (changed & | |
1326 | (WIPHY_PARAM_RETRY_SHORT | WIPHY_PARAM_RETRY_LONG)) | |
1327 | ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS); | |
1328 | ||
1329 | return 0; | |
1330 | } | |
1331 | ||
1332 | static int ieee80211_set_tx_power(struct wiphy *wiphy, | |
1333 | enum tx_power_setting type, int dbm) | |
1334 | { | |
1335 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1336 | struct ieee80211_channel *chan = local->hw.conf.channel; | |
1337 | u32 changes = 0; | |
1338 | ||
1339 | switch (type) { | |
1340 | case TX_POWER_AUTOMATIC: | |
1341 | local->user_power_level = -1; | |
1342 | break; | |
1343 | case TX_POWER_LIMITED: | |
1344 | if (dbm < 0) | |
1345 | return -EINVAL; | |
1346 | local->user_power_level = dbm; | |
1347 | break; | |
1348 | case TX_POWER_FIXED: | |
1349 | if (dbm < 0) | |
1350 | return -EINVAL; | |
1351 | /* TODO: move to cfg80211 when it knows the channel */ | |
1352 | if (dbm > chan->max_power) | |
1353 | return -EINVAL; | |
1354 | local->user_power_level = dbm; | |
1355 | break; | |
1356 | } | |
1357 | ||
1358 | ieee80211_hw_config(local, changes); | |
1359 | ||
1360 | return 0; | |
1361 | } | |
1362 | ||
1363 | static int ieee80211_get_tx_power(struct wiphy *wiphy, int *dbm) | |
1364 | { | |
1365 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1366 | ||
1367 | *dbm = local->hw.conf.power_level; | |
1368 | ||
1369 | return 0; | |
1370 | } | |
1371 | ||
1372 | static void ieee80211_rfkill_poll(struct wiphy *wiphy) | |
1373 | { | |
1374 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
1375 | ||
1376 | drv_rfkill_poll(local); | |
1377 | } | |
1378 | ||
1379 | struct cfg80211_ops mac80211_config_ops = { | |
1380 | .add_virtual_intf = ieee80211_add_iface, | |
1381 | .del_virtual_intf = ieee80211_del_iface, | |
1382 | .change_virtual_intf = ieee80211_change_iface, | |
1383 | .add_key = ieee80211_add_key, | |
1384 | .del_key = ieee80211_del_key, | |
1385 | .get_key = ieee80211_get_key, | |
1386 | .set_default_key = ieee80211_config_default_key, | |
1387 | .set_default_mgmt_key = ieee80211_config_default_mgmt_key, | |
1388 | .add_beacon = ieee80211_add_beacon, | |
1389 | .set_beacon = ieee80211_set_beacon, | |
1390 | .del_beacon = ieee80211_del_beacon, | |
1391 | .add_station = ieee80211_add_station, | |
1392 | .del_station = ieee80211_del_station, | |
1393 | .change_station = ieee80211_change_station, | |
1394 | .get_station = ieee80211_get_station, | |
1395 | .dump_station = ieee80211_dump_station, | |
1396 | #ifdef CONFIG_MAC80211_MESH | |
1397 | .add_mpath = ieee80211_add_mpath, | |
1398 | .del_mpath = ieee80211_del_mpath, | |
1399 | .change_mpath = ieee80211_change_mpath, | |
1400 | .get_mpath = ieee80211_get_mpath, | |
1401 | .dump_mpath = ieee80211_dump_mpath, | |
1402 | .set_mesh_params = ieee80211_set_mesh_params, | |
1403 | .get_mesh_params = ieee80211_get_mesh_params, | |
1404 | #endif | |
1405 | .change_bss = ieee80211_change_bss, | |
1406 | .set_txq_params = ieee80211_set_txq_params, | |
1407 | .set_channel = ieee80211_set_channel, | |
1408 | .suspend = ieee80211_suspend, | |
1409 | .resume = ieee80211_resume, | |
1410 | .scan = ieee80211_scan, | |
1411 | .auth = ieee80211_auth, | |
1412 | .assoc = ieee80211_assoc, | |
1413 | .deauth = ieee80211_deauth, | |
1414 | .disassoc = ieee80211_disassoc, | |
1415 | .join_ibss = ieee80211_join_ibss, | |
1416 | .leave_ibss = ieee80211_leave_ibss, | |
1417 | .set_wiphy_params = ieee80211_set_wiphy_params, | |
1418 | .set_tx_power = ieee80211_set_tx_power, | |
1419 | .get_tx_power = ieee80211_get_tx_power, | |
1420 | .rfkill_poll = ieee80211_rfkill_poll, | |
1421 | }; |