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Commit | Line | Data |
---|---|---|
f0706e82 JB |
1 | /* |
2 | * mac80211 configuration hooks for cfg80211 | |
3 | * | |
62da92fb | 4 | * Copyright 2006, 2007 Johannes Berg <johannes@sipsolutions.net> |
f0706e82 JB |
5 | * |
6 | * This file is GPLv2 as found in COPYING. | |
7 | */ | |
8 | ||
e8cbb4cb | 9 | #include <linux/ieee80211.h> |
f0706e82 JB |
10 | #include <linux/nl80211.h> |
11 | #include <linux/rtnetlink.h> | |
881d966b | 12 | #include <net/net_namespace.h> |
5dfdaf58 | 13 | #include <linux/rcupdate.h> |
f0706e82 JB |
14 | #include <net/cfg80211.h> |
15 | #include "ieee80211_i.h" | |
e0eb6859 | 16 | #include "cfg.h" |
4fd6931e | 17 | #include "ieee80211_rate.h" |
c5dd9c2b | 18 | #include "mesh.h" |
c5dd9c2b | 19 | |
42613db7 JB |
20 | static enum ieee80211_if_types |
21 | nl80211_type_to_mac80211_type(enum nl80211_iftype type) | |
22 | { | |
23 | switch (type) { | |
24 | case NL80211_IFTYPE_UNSPECIFIED: | |
25 | return IEEE80211_IF_TYPE_STA; | |
26 | case NL80211_IFTYPE_ADHOC: | |
27 | return IEEE80211_IF_TYPE_IBSS; | |
28 | case NL80211_IFTYPE_STATION: | |
29 | return IEEE80211_IF_TYPE_STA; | |
30 | case NL80211_IFTYPE_MONITOR: | |
31 | return IEEE80211_IF_TYPE_MNTR; | |
c5dd9c2b LCC |
32 | #ifdef CONFIG_MAC80211_MESH |
33 | case NL80211_IFTYPE_MESH_POINT: | |
34 | return IEEE80211_IF_TYPE_MESH_POINT; | |
35 | #endif | |
42613db7 JB |
36 | default: |
37 | return IEEE80211_IF_TYPE_INVALID; | |
38 | } | |
39 | } | |
40 | ||
f0706e82 | 41 | static int ieee80211_add_iface(struct wiphy *wiphy, char *name, |
2ec600d6 LCC |
42 | enum nl80211_iftype type, u32 *flags, |
43 | struct vif_params *params) | |
f0706e82 JB |
44 | { |
45 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
42613db7 | 46 | enum ieee80211_if_types itype; |
8cc9a739 MW |
47 | struct net_device *dev; |
48 | struct ieee80211_sub_if_data *sdata; | |
49 | int err; | |
f0706e82 JB |
50 | |
51 | if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) | |
52 | return -ENODEV; | |
53 | ||
42613db7 JB |
54 | itype = nl80211_type_to_mac80211_type(type); |
55 | if (itype == IEEE80211_IF_TYPE_INVALID) | |
f0706e82 | 56 | return -EINVAL; |
f0706e82 | 57 | |
ee385855 | 58 | err = ieee80211_if_add(local->mdev, name, &dev, itype, params); |
8cc9a739 MW |
59 | if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags) |
60 | return err; | |
61 | ||
62 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
63 | sdata->u.mntr_flags = *flags; | |
64 | return 0; | |
f0706e82 JB |
65 | } |
66 | ||
67 | static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex) | |
68 | { | |
69 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
70 | struct net_device *dev; | |
71 | char *name; | |
72 | ||
73 | if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) | |
74 | return -ENODEV; | |
75 | ||
42613db7 JB |
76 | /* we're under RTNL */ |
77 | dev = __dev_get_by_index(&init_net, ifindex); | |
f0706e82 JB |
78 | if (!dev) |
79 | return 0; | |
80 | ||
81 | name = dev->name; | |
f0706e82 JB |
82 | |
83 | return ieee80211_if_remove(local->mdev, name, -1); | |
84 | } | |
85 | ||
42613db7 | 86 | static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex, |
2ec600d6 LCC |
87 | enum nl80211_iftype type, u32 *flags, |
88 | struct vif_params *params) | |
42613db7 JB |
89 | { |
90 | struct ieee80211_local *local = wiphy_priv(wiphy); | |
91 | struct net_device *dev; | |
92 | enum ieee80211_if_types itype; | |
93 | struct ieee80211_sub_if_data *sdata; | |
94 | ||
95 | if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED)) | |
96 | return -ENODEV; | |
97 | ||
98 | /* we're under RTNL */ | |
99 | dev = __dev_get_by_index(&init_net, ifindex); | |
100 | if (!dev) | |
101 | return -ENODEV; | |
102 | ||
103 | if (netif_running(dev)) | |
104 | return -EBUSY; | |
105 | ||
106 | itype = nl80211_type_to_mac80211_type(type); | |
107 | if (itype == IEEE80211_IF_TYPE_INVALID) | |
108 | return -EINVAL; | |
109 | ||
110 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
111 | ||
51fb61e7 | 112 | if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN) |
42613db7 JB |
113 | return -EOPNOTSUPP; |
114 | ||
115 | ieee80211_if_reinit(dev); | |
116 | ieee80211_if_set_type(dev, itype); | |
117 | ||
902acc78 JB |
118 | if (ieee80211_vif_is_mesh(&sdata->vif) && params->mesh_id_len) |
119 | ieee80211_if_sta_set_mesh_id(&sdata->u.sta, | |
120 | params->mesh_id_len, | |
121 | params->mesh_id); | |
c5dd9c2b | 122 | |
8cc9a739 MW |
123 | if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags) |
124 | return 0; | |
125 | ||
126 | sdata->u.mntr_flags = *flags; | |
42613db7 JB |
127 | return 0; |
128 | } | |
129 | ||
e8cbb4cb JB |
130 | static int ieee80211_add_key(struct wiphy *wiphy, struct net_device *dev, |
131 | u8 key_idx, u8 *mac_addr, | |
132 | struct key_params *params) | |
133 | { | |
134 | struct ieee80211_sub_if_data *sdata; | |
135 | struct sta_info *sta = NULL; | |
136 | enum ieee80211_key_alg alg; | |
db4d1169 | 137 | struct ieee80211_key *key; |
e8cbb4cb JB |
138 | |
139 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
140 | ||
141 | switch (params->cipher) { | |
142 | case WLAN_CIPHER_SUITE_WEP40: | |
143 | case WLAN_CIPHER_SUITE_WEP104: | |
144 | alg = ALG_WEP; | |
145 | break; | |
146 | case WLAN_CIPHER_SUITE_TKIP: | |
147 | alg = ALG_TKIP; | |
148 | break; | |
149 | case WLAN_CIPHER_SUITE_CCMP: | |
150 | alg = ALG_CCMP; | |
151 | break; | |
152 | default: | |
153 | return -EINVAL; | |
154 | } | |
155 | ||
db4d1169 JB |
156 | key = ieee80211_key_alloc(alg, key_idx, params->key_len, params->key); |
157 | if (!key) | |
158 | return -ENOMEM; | |
159 | ||
e8cbb4cb JB |
160 | if (mac_addr) { |
161 | sta = sta_info_get(sdata->local, mac_addr); | |
db4d1169 JB |
162 | if (!sta) { |
163 | ieee80211_key_free(key); | |
e8cbb4cb | 164 | return -ENOENT; |
db4d1169 | 165 | } |
e8cbb4cb JB |
166 | } |
167 | ||
db4d1169 JB |
168 | ieee80211_key_link(key, sdata, sta); |
169 | ||
d0709a65 | 170 | return 0; |
e8cbb4cb JB |
171 | } |
172 | ||
173 | static int ieee80211_del_key(struct wiphy *wiphy, struct net_device *dev, | |
174 | u8 key_idx, u8 *mac_addr) | |
175 | { | |
176 | struct ieee80211_sub_if_data *sdata; | |
177 | struct sta_info *sta; | |
178 | int ret; | |
179 | ||
180 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
181 | ||
182 | if (mac_addr) { | |
183 | sta = sta_info_get(sdata->local, mac_addr); | |
184 | if (!sta) | |
185 | return -ENOENT; | |
186 | ||
187 | ret = 0; | |
db4d1169 | 188 | if (sta->key) { |
d0709a65 | 189 | ieee80211_key_free(sta->key); |
db4d1169 JB |
190 | WARN_ON(sta->key); |
191 | } else | |
e8cbb4cb JB |
192 | ret = -ENOENT; |
193 | ||
e8cbb4cb JB |
194 | return ret; |
195 | } | |
196 | ||
197 | if (!sdata->keys[key_idx]) | |
198 | return -ENOENT; | |
199 | ||
d0709a65 | 200 | ieee80211_key_free(sdata->keys[key_idx]); |
db4d1169 | 201 | WARN_ON(sdata->keys[key_idx]); |
e8cbb4cb JB |
202 | |
203 | return 0; | |
204 | } | |
205 | ||
62da92fb JB |
206 | static int ieee80211_get_key(struct wiphy *wiphy, struct net_device *dev, |
207 | u8 key_idx, u8 *mac_addr, void *cookie, | |
208 | void (*callback)(void *cookie, | |
209 | struct key_params *params)) | |
210 | { | |
211 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
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 | if (mac_addr) { | |
221 | sta = sta_info_get(sdata->local, mac_addr); | |
222 | if (!sta) | |
223 | goto out; | |
224 | ||
225 | key = sta->key; | |
226 | } else | |
227 | key = sdata->keys[key_idx]; | |
228 | ||
229 | if (!key) | |
230 | goto out; | |
231 | ||
232 | memset(¶ms, 0, sizeof(params)); | |
233 | ||
234 | switch (key->conf.alg) { | |
235 | case ALG_TKIP: | |
236 | params.cipher = WLAN_CIPHER_SUITE_TKIP; | |
237 | ||
238 | iv32 = key->u.tkip.iv32; | |
239 | iv16 = key->u.tkip.iv16; | |
240 | ||
241 | if (key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE && | |
242 | sdata->local->ops->get_tkip_seq) | |
243 | sdata->local->ops->get_tkip_seq( | |
244 | local_to_hw(sdata->local), | |
245 | key->conf.hw_key_idx, | |
246 | &iv32, &iv16); | |
247 | ||
248 | seq[0] = iv16 & 0xff; | |
249 | seq[1] = (iv16 >> 8) & 0xff; | |
250 | seq[2] = iv32 & 0xff; | |
251 | seq[3] = (iv32 >> 8) & 0xff; | |
252 | seq[4] = (iv32 >> 16) & 0xff; | |
253 | seq[5] = (iv32 >> 24) & 0xff; | |
254 | params.seq = seq; | |
255 | params.seq_len = 6; | |
256 | break; | |
257 | case ALG_CCMP: | |
258 | params.cipher = WLAN_CIPHER_SUITE_CCMP; | |
259 | seq[0] = key->u.ccmp.tx_pn[5]; | |
260 | seq[1] = key->u.ccmp.tx_pn[4]; | |
261 | seq[2] = key->u.ccmp.tx_pn[3]; | |
262 | seq[3] = key->u.ccmp.tx_pn[2]; | |
263 | seq[4] = key->u.ccmp.tx_pn[1]; | |
264 | seq[5] = key->u.ccmp.tx_pn[0]; | |
265 | params.seq = seq; | |
266 | params.seq_len = 6; | |
267 | break; | |
268 | case ALG_WEP: | |
269 | if (key->conf.keylen == 5) | |
270 | params.cipher = WLAN_CIPHER_SUITE_WEP40; | |
271 | else | |
272 | params.cipher = WLAN_CIPHER_SUITE_WEP104; | |
273 | break; | |
274 | } | |
275 | ||
276 | params.key = key->conf.key; | |
277 | params.key_len = key->conf.keylen; | |
278 | ||
279 | callback(cookie, ¶ms); | |
280 | err = 0; | |
281 | ||
282 | out: | |
62da92fb JB |
283 | return err; |
284 | } | |
285 | ||
e8cbb4cb JB |
286 | static int ieee80211_config_default_key(struct wiphy *wiphy, |
287 | struct net_device *dev, | |
288 | u8 key_idx) | |
289 | { | |
290 | struct ieee80211_sub_if_data *sdata; | |
291 | ||
292 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
293 | ieee80211_set_default_key(sdata, key_idx); | |
294 | ||
295 | return 0; | |
296 | } | |
297 | ||
c5dd9c2b LCC |
298 | static void sta_set_sinfo(struct sta_info *sta, struct station_info *sinfo) |
299 | { | |
d0709a65 | 300 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
c5dd9c2b LCC |
301 | |
302 | sinfo->filled = STATION_INFO_INACTIVE_TIME | | |
303 | STATION_INFO_RX_BYTES | | |
304 | STATION_INFO_TX_BYTES; | |
305 | ||
306 | sinfo->inactive_time = jiffies_to_msecs(jiffies - sta->last_rx); | |
307 | sinfo->rx_bytes = sta->rx_bytes; | |
308 | sinfo->tx_bytes = sta->tx_bytes; | |
309 | ||
902acc78 | 310 | if (ieee80211_vif_is_mesh(&sdata->vif)) { |
c5dd9c2b | 311 | #ifdef CONFIG_MAC80211_MESH |
c5dd9c2b LCC |
312 | sinfo->filled |= STATION_INFO_LLID | |
313 | STATION_INFO_PLID | | |
314 | STATION_INFO_PLINK_STATE; | |
315 | ||
316 | sinfo->llid = le16_to_cpu(sta->llid); | |
317 | sinfo->plid = le16_to_cpu(sta->plid); | |
318 | sinfo->plink_state = sta->plink_state; | |
c5dd9c2b | 319 | #endif |
902acc78 | 320 | } |
c5dd9c2b LCC |
321 | } |
322 | ||
323 | ||
324 | static int ieee80211_dump_station(struct wiphy *wiphy, struct net_device *dev, | |
325 | int idx, u8 *mac, struct station_info *sinfo) | |
326 | { | |
327 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
328 | struct sta_info *sta; | |
d0709a65 JB |
329 | int ret = -ENOENT; |
330 | ||
331 | rcu_read_lock(); | |
c5dd9c2b LCC |
332 | |
333 | sta = sta_info_get_by_idx(local, idx, dev); | |
d0709a65 JB |
334 | if (sta) { |
335 | ret = 0; | |
336 | memcpy(mac, sta->addr, ETH_ALEN); | |
337 | sta_set_sinfo(sta, sinfo); | |
338 | } | |
c5dd9c2b | 339 | |
d0709a65 | 340 | rcu_read_unlock(); |
c5dd9c2b | 341 | |
d0709a65 | 342 | return ret; |
c5dd9c2b LCC |
343 | } |
344 | ||
7bbdd2d9 | 345 | static int ieee80211_get_station(struct wiphy *wiphy, struct net_device *dev, |
2ec600d6 | 346 | u8 *mac, struct station_info *sinfo) |
7bbdd2d9 JB |
347 | { |
348 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
349 | struct sta_info *sta; | |
d0709a65 | 350 | int ret = -ENOENT; |
7bbdd2d9 | 351 | |
d0709a65 | 352 | rcu_read_lock(); |
7bbdd2d9 JB |
353 | |
354 | /* XXX: verify sta->dev == dev */ | |
7bbdd2d9 | 355 | |
d0709a65 JB |
356 | sta = sta_info_get(local, mac); |
357 | if (sta) { | |
358 | ret = 0; | |
359 | sta_set_sinfo(sta, sinfo); | |
360 | } | |
361 | ||
362 | rcu_read_unlock(); | |
363 | ||
364 | return ret; | |
7bbdd2d9 JB |
365 | } |
366 | ||
5dfdaf58 JB |
367 | /* |
368 | * This handles both adding a beacon and setting new beacon info | |
369 | */ | |
370 | static int ieee80211_config_beacon(struct ieee80211_sub_if_data *sdata, | |
371 | struct beacon_parameters *params) | |
372 | { | |
373 | struct beacon_data *new, *old; | |
374 | int new_head_len, new_tail_len; | |
375 | int size; | |
376 | int err = -EINVAL; | |
377 | ||
378 | old = sdata->u.ap.beacon; | |
379 | ||
380 | /* head must not be zero-length */ | |
381 | if (params->head && !params->head_len) | |
382 | return -EINVAL; | |
383 | ||
384 | /* | |
385 | * This is a kludge. beacon interval should really be part | |
386 | * of the beacon information. | |
387 | */ | |
388 | if (params->interval) { | |
389 | sdata->local->hw.conf.beacon_int = params->interval; | |
390 | if (ieee80211_hw_config(sdata->local)) | |
391 | return -EINVAL; | |
392 | /* | |
393 | * We updated some parameter so if below bails out | |
394 | * it's not an error. | |
395 | */ | |
396 | err = 0; | |
397 | } | |
398 | ||
399 | /* Need to have a beacon head if we don't have one yet */ | |
400 | if (!params->head && !old) | |
401 | return err; | |
402 | ||
403 | /* sorry, no way to start beaconing without dtim period */ | |
404 | if (!params->dtim_period && !old) | |
405 | return err; | |
406 | ||
407 | /* new or old head? */ | |
408 | if (params->head) | |
409 | new_head_len = params->head_len; | |
410 | else | |
411 | new_head_len = old->head_len; | |
412 | ||
413 | /* new or old tail? */ | |
414 | if (params->tail || !old) | |
415 | /* params->tail_len will be zero for !params->tail */ | |
416 | new_tail_len = params->tail_len; | |
417 | else | |
418 | new_tail_len = old->tail_len; | |
419 | ||
420 | size = sizeof(*new) + new_head_len + new_tail_len; | |
421 | ||
422 | new = kzalloc(size, GFP_KERNEL); | |
423 | if (!new) | |
424 | return -ENOMEM; | |
425 | ||
426 | /* start filling the new info now */ | |
427 | ||
428 | /* new or old dtim period? */ | |
429 | if (params->dtim_period) | |
430 | new->dtim_period = params->dtim_period; | |
431 | else | |
432 | new->dtim_period = old->dtim_period; | |
433 | ||
434 | /* | |
435 | * pointers go into the block we allocated, | |
436 | * memory is | beacon_data | head | tail | | |
437 | */ | |
438 | new->head = ((u8 *) new) + sizeof(*new); | |
439 | new->tail = new->head + new_head_len; | |
440 | new->head_len = new_head_len; | |
441 | new->tail_len = new_tail_len; | |
442 | ||
443 | /* copy in head */ | |
444 | if (params->head) | |
445 | memcpy(new->head, params->head, new_head_len); | |
446 | else | |
447 | memcpy(new->head, old->head, new_head_len); | |
448 | ||
449 | /* copy in optional tail */ | |
450 | if (params->tail) | |
451 | memcpy(new->tail, params->tail, new_tail_len); | |
452 | else | |
453 | if (old) | |
454 | memcpy(new->tail, old->tail, new_tail_len); | |
455 | ||
456 | rcu_assign_pointer(sdata->u.ap.beacon, new); | |
457 | ||
458 | synchronize_rcu(); | |
459 | ||
460 | kfree(old); | |
461 | ||
462 | return ieee80211_if_config_beacon(sdata->dev); | |
463 | } | |
464 | ||
465 | static int ieee80211_add_beacon(struct wiphy *wiphy, struct net_device *dev, | |
466 | struct beacon_parameters *params) | |
467 | { | |
468 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
469 | struct beacon_data *old; | |
470 | ||
471 | if (sdata->vif.type != IEEE80211_IF_TYPE_AP) | |
472 | return -EINVAL; | |
473 | ||
474 | old = sdata->u.ap.beacon; | |
475 | ||
476 | if (old) | |
477 | return -EALREADY; | |
478 | ||
479 | return ieee80211_config_beacon(sdata, params); | |
480 | } | |
481 | ||
482 | static int ieee80211_set_beacon(struct wiphy *wiphy, struct net_device *dev, | |
483 | struct beacon_parameters *params) | |
484 | { | |
485 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
486 | struct beacon_data *old; | |
487 | ||
488 | if (sdata->vif.type != IEEE80211_IF_TYPE_AP) | |
489 | return -EINVAL; | |
490 | ||
491 | old = sdata->u.ap.beacon; | |
492 | ||
493 | if (!old) | |
494 | return -ENOENT; | |
495 | ||
496 | return ieee80211_config_beacon(sdata, params); | |
497 | } | |
498 | ||
499 | static int ieee80211_del_beacon(struct wiphy *wiphy, struct net_device *dev) | |
500 | { | |
501 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
502 | struct beacon_data *old; | |
503 | ||
504 | if (sdata->vif.type != IEEE80211_IF_TYPE_AP) | |
505 | return -EINVAL; | |
506 | ||
507 | old = sdata->u.ap.beacon; | |
508 | ||
509 | if (!old) | |
510 | return -ENOENT; | |
511 | ||
512 | rcu_assign_pointer(sdata->u.ap.beacon, NULL); | |
513 | synchronize_rcu(); | |
514 | kfree(old); | |
515 | ||
516 | return ieee80211_if_config_beacon(dev); | |
517 | } | |
518 | ||
4fd6931e JB |
519 | /* Layer 2 Update frame (802.2 Type 1 LLC XID Update response) */ |
520 | struct iapp_layer2_update { | |
521 | u8 da[ETH_ALEN]; /* broadcast */ | |
522 | u8 sa[ETH_ALEN]; /* STA addr */ | |
523 | __be16 len; /* 6 */ | |
524 | u8 dsap; /* 0 */ | |
525 | u8 ssap; /* 0 */ | |
526 | u8 control; | |
527 | u8 xid_info[3]; | |
528 | } __attribute__ ((packed)); | |
529 | ||
530 | static void ieee80211_send_layer2_update(struct sta_info *sta) | |
531 | { | |
532 | struct iapp_layer2_update *msg; | |
533 | struct sk_buff *skb; | |
534 | ||
535 | /* Send Level 2 Update Frame to update forwarding tables in layer 2 | |
536 | * bridge devices */ | |
537 | ||
538 | skb = dev_alloc_skb(sizeof(*msg)); | |
539 | if (!skb) | |
540 | return; | |
541 | msg = (struct iapp_layer2_update *)skb_put(skb, sizeof(*msg)); | |
542 | ||
543 | /* 802.2 Type 1 Logical Link Control (LLC) Exchange Identifier (XID) | |
544 | * Update response frame; IEEE Std 802.2-1998, 5.4.1.2.1 */ | |
545 | ||
546 | memset(msg->da, 0xff, ETH_ALEN); | |
547 | memcpy(msg->sa, sta->addr, ETH_ALEN); | |
548 | msg->len = htons(6); | |
549 | msg->dsap = 0; | |
550 | msg->ssap = 0x01; /* NULL LSAP, CR Bit: Response */ | |
551 | msg->control = 0xaf; /* XID response lsb.1111F101. | |
552 | * F=0 (no poll command; unsolicited frame) */ | |
553 | msg->xid_info[0] = 0x81; /* XID format identifier */ | |
554 | msg->xid_info[1] = 1; /* LLC types/classes: Type 1 LLC */ | |
555 | msg->xid_info[2] = 0; /* XID sender's receive window size (RW) */ | |
556 | ||
d0709a65 JB |
557 | skb->dev = sta->sdata->dev; |
558 | skb->protocol = eth_type_trans(skb, sta->sdata->dev); | |
4fd6931e JB |
559 | memset(skb->cb, 0, sizeof(skb->cb)); |
560 | netif_rx(skb); | |
561 | } | |
562 | ||
563 | static void sta_apply_parameters(struct ieee80211_local *local, | |
564 | struct sta_info *sta, | |
565 | struct station_parameters *params) | |
566 | { | |
567 | u32 rates; | |
568 | int i, j; | |
8318d78a | 569 | struct ieee80211_supported_band *sband; |
d0709a65 | 570 | struct ieee80211_sub_if_data *sdata = sta->sdata; |
4fd6931e | 571 | |
73651ee6 JB |
572 | /* |
573 | * FIXME: updating the flags is racy when this function is | |
574 | * called from ieee80211_change_station(), this will | |
575 | * be resolved in a future patch. | |
576 | */ | |
577 | ||
4fd6931e JB |
578 | if (params->station_flags & STATION_FLAG_CHANGED) { |
579 | sta->flags &= ~WLAN_STA_AUTHORIZED; | |
580 | if (params->station_flags & STATION_FLAG_AUTHORIZED) | |
581 | sta->flags |= WLAN_STA_AUTHORIZED; | |
582 | ||
583 | sta->flags &= ~WLAN_STA_SHORT_PREAMBLE; | |
584 | if (params->station_flags & STATION_FLAG_SHORT_PREAMBLE) | |
585 | sta->flags |= WLAN_STA_SHORT_PREAMBLE; | |
586 | ||
587 | sta->flags &= ~WLAN_STA_WME; | |
588 | if (params->station_flags & STATION_FLAG_WME) | |
589 | sta->flags |= WLAN_STA_WME; | |
590 | } | |
591 | ||
73651ee6 JB |
592 | /* |
593 | * FIXME: updating the following information is racy when this | |
594 | * function is called from ieee80211_change_station(). | |
595 | * However, all this information should be static so | |
596 | * maybe we should just reject attemps to change it. | |
597 | */ | |
598 | ||
4fd6931e JB |
599 | if (params->aid) { |
600 | sta->aid = params->aid; | |
601 | if (sta->aid > IEEE80211_MAX_AID) | |
602 | sta->aid = 0; /* XXX: should this be an error? */ | |
603 | } | |
604 | ||
605 | if (params->listen_interval >= 0) | |
606 | sta->listen_interval = params->listen_interval; | |
607 | ||
608 | if (params->supported_rates) { | |
609 | rates = 0; | |
8318d78a JB |
610 | sband = local->hw.wiphy->bands[local->oper_channel->band]; |
611 | ||
4fd6931e JB |
612 | for (i = 0; i < params->supported_rates_len; i++) { |
613 | int rate = (params->supported_rates[i] & 0x7f) * 5; | |
8318d78a JB |
614 | for (j = 0; j < sband->n_bitrates; j++) { |
615 | if (sband->bitrates[j].bitrate == rate) | |
4fd6931e JB |
616 | rates |= BIT(j); |
617 | } | |
618 | } | |
8318d78a | 619 | sta->supp_rates[local->oper_channel->band] = rates; |
4fd6931e | 620 | } |
c5dd9c2b | 621 | |
902acc78 | 622 | if (ieee80211_vif_is_mesh(&sdata->vif) && params->plink_action) { |
c5dd9c2b LCC |
623 | switch (params->plink_action) { |
624 | case PLINK_ACTION_OPEN: | |
625 | mesh_plink_open(sta); | |
626 | break; | |
627 | case PLINK_ACTION_BLOCK: | |
628 | mesh_plink_block(sta); | |
629 | break; | |
630 | } | |
902acc78 | 631 | } |
4fd6931e JB |
632 | } |
633 | ||
634 | static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev, | |
635 | u8 *mac, struct station_parameters *params) | |
636 | { | |
637 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
638 | struct sta_info *sta; | |
639 | struct ieee80211_sub_if_data *sdata; | |
73651ee6 | 640 | int err; |
4fd6931e JB |
641 | |
642 | /* Prevent a race with changing the rate control algorithm */ | |
643 | if (!netif_running(dev)) | |
644 | return -ENETDOWN; | |
645 | ||
4fd6931e JB |
646 | if (params->vlan) { |
647 | sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); | |
648 | ||
649 | if (sdata->vif.type != IEEE80211_IF_TYPE_VLAN || | |
650 | sdata->vif.type != IEEE80211_IF_TYPE_AP) | |
651 | return -EINVAL; | |
652 | } else | |
653 | sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
654 | ||
03e4497e JB |
655 | if (compare_ether_addr(mac, dev->dev_addr) == 0) |
656 | return -EINVAL; | |
657 | ||
658 | if (is_multicast_ether_addr(mac)) | |
659 | return -EINVAL; | |
660 | ||
661 | sta = sta_info_alloc(sdata, mac, GFP_KERNEL); | |
73651ee6 JB |
662 | if (!sta) |
663 | return -ENOMEM; | |
4fd6931e JB |
664 | |
665 | sta->flags = WLAN_STA_AUTH | WLAN_STA_ASSOC; | |
666 | ||
667 | sta_apply_parameters(local, sta, params); | |
668 | ||
669 | rate_control_rate_init(sta, local); | |
670 | ||
73651ee6 JB |
671 | rcu_read_lock(); |
672 | ||
673 | err = sta_info_insert(sta); | |
674 | if (err) { | |
93e5deb1 | 675 | /* STA has been freed */ |
73651ee6 JB |
676 | rcu_read_unlock(); |
677 | return err; | |
678 | } | |
679 | ||
680 | if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN || | |
681 | sdata->vif.type == IEEE80211_IF_TYPE_AP) | |
682 | ieee80211_send_layer2_update(sta); | |
683 | ||
684 | rcu_read_unlock(); | |
685 | ||
4fd6931e JB |
686 | return 0; |
687 | } | |
688 | ||
689 | static int ieee80211_del_station(struct wiphy *wiphy, struct net_device *dev, | |
690 | u8 *mac) | |
691 | { | |
d0709a65 JB |
692 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); |
693 | struct ieee80211_local *local = sdata->local; | |
4fd6931e JB |
694 | struct sta_info *sta; |
695 | ||
696 | if (mac) { | |
697 | /* XXX: get sta belonging to dev */ | |
698 | sta = sta_info_get(local, mac); | |
699 | if (!sta) | |
700 | return -ENOENT; | |
701 | ||
d0709a65 | 702 | sta_info_unlink(&sta); |
4f6fab47 | 703 | sta_info_destroy(sta); |
4fd6931e | 704 | } else |
d0709a65 | 705 | sta_info_flush(local, sdata); |
4fd6931e JB |
706 | |
707 | return 0; | |
708 | } | |
709 | ||
710 | static int ieee80211_change_station(struct wiphy *wiphy, | |
711 | struct net_device *dev, | |
712 | u8 *mac, | |
713 | struct station_parameters *params) | |
714 | { | |
715 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
716 | struct sta_info *sta; | |
717 | struct ieee80211_sub_if_data *vlansdata; | |
718 | ||
719 | /* XXX: get sta belonging to dev */ | |
720 | sta = sta_info_get(local, mac); | |
721 | if (!sta) | |
722 | return -ENOENT; | |
723 | ||
d0709a65 | 724 | if (params->vlan && params->vlan != sta->sdata->dev) { |
4fd6931e JB |
725 | vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
726 | ||
727 | if (vlansdata->vif.type != IEEE80211_IF_TYPE_VLAN || | |
728 | vlansdata->vif.type != IEEE80211_IF_TYPE_AP) | |
729 | return -EINVAL; | |
730 | ||
d0709a65 | 731 | sta->sdata = IEEE80211_DEV_TO_SUB_IF(params->vlan); |
4fd6931e JB |
732 | ieee80211_send_layer2_update(sta); |
733 | } | |
734 | ||
735 | sta_apply_parameters(local, sta, params); | |
736 | ||
4fd6931e JB |
737 | return 0; |
738 | } | |
739 | ||
c5dd9c2b LCC |
740 | #ifdef CONFIG_MAC80211_MESH |
741 | static int ieee80211_add_mpath(struct wiphy *wiphy, struct net_device *dev, | |
742 | u8 *dst, u8 *next_hop) | |
743 | { | |
744 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
745 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
746 | struct mesh_path *mpath; | |
747 | struct sta_info *sta; | |
748 | int err; | |
749 | ||
750 | if (!netif_running(dev)) | |
751 | return -ENETDOWN; | |
752 | ||
753 | if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) | |
754 | return -ENOTSUPP; | |
755 | ||
d0709a65 | 756 | rcu_read_lock(); |
c5dd9c2b | 757 | sta = sta_info_get(local, next_hop); |
d0709a65 JB |
758 | if (!sta) { |
759 | rcu_read_unlock(); | |
c5dd9c2b | 760 | return -ENOENT; |
d0709a65 | 761 | } |
c5dd9c2b LCC |
762 | |
763 | err = mesh_path_add(dst, dev); | |
d0709a65 JB |
764 | if (err) { |
765 | rcu_read_unlock(); | |
c5dd9c2b | 766 | return err; |
d0709a65 | 767 | } |
c5dd9c2b | 768 | |
c5dd9c2b LCC |
769 | mpath = mesh_path_lookup(dst, dev); |
770 | if (!mpath) { | |
771 | rcu_read_unlock(); | |
c5dd9c2b LCC |
772 | return -ENXIO; |
773 | } | |
774 | mesh_path_fix_nexthop(mpath, sta); | |
d0709a65 | 775 | |
c5dd9c2b LCC |
776 | rcu_read_unlock(); |
777 | return 0; | |
778 | } | |
779 | ||
780 | static int ieee80211_del_mpath(struct wiphy *wiphy, struct net_device *dev, | |
781 | u8 *dst) | |
782 | { | |
783 | if (dst) | |
cfa22c71 | 784 | return mesh_path_del(dst, dev); |
c5dd9c2b LCC |
785 | |
786 | mesh_path_flush(dev); | |
787 | return 0; | |
788 | } | |
789 | ||
790 | static int ieee80211_change_mpath(struct wiphy *wiphy, | |
791 | struct net_device *dev, | |
792 | u8 *dst, u8 *next_hop) | |
793 | { | |
794 | struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr); | |
795 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
796 | struct mesh_path *mpath; | |
797 | struct sta_info *sta; | |
798 | ||
799 | if (!netif_running(dev)) | |
800 | return -ENETDOWN; | |
801 | ||
802 | if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) | |
803 | return -ENOTSUPP; | |
804 | ||
d0709a65 JB |
805 | rcu_read_lock(); |
806 | ||
c5dd9c2b | 807 | sta = sta_info_get(local, next_hop); |
d0709a65 JB |
808 | if (!sta) { |
809 | rcu_read_unlock(); | |
c5dd9c2b | 810 | return -ENOENT; |
d0709a65 | 811 | } |
c5dd9c2b | 812 | |
c5dd9c2b LCC |
813 | mpath = mesh_path_lookup(dst, dev); |
814 | if (!mpath) { | |
815 | rcu_read_unlock(); | |
c5dd9c2b LCC |
816 | return -ENOENT; |
817 | } | |
818 | ||
819 | mesh_path_fix_nexthop(mpath, sta); | |
d0709a65 | 820 | |
c5dd9c2b LCC |
821 | rcu_read_unlock(); |
822 | return 0; | |
823 | } | |
824 | ||
825 | static void mpath_set_pinfo(struct mesh_path *mpath, u8 *next_hop, | |
826 | struct mpath_info *pinfo) | |
827 | { | |
828 | if (mpath->next_hop) | |
829 | memcpy(next_hop, mpath->next_hop->addr, ETH_ALEN); | |
830 | else | |
831 | memset(next_hop, 0, ETH_ALEN); | |
832 | ||
833 | pinfo->filled = MPATH_INFO_FRAME_QLEN | | |
834 | MPATH_INFO_DSN | | |
835 | MPATH_INFO_METRIC | | |
836 | MPATH_INFO_EXPTIME | | |
837 | MPATH_INFO_DISCOVERY_TIMEOUT | | |
838 | MPATH_INFO_DISCOVERY_RETRIES | | |
839 | MPATH_INFO_FLAGS; | |
840 | ||
841 | pinfo->frame_qlen = mpath->frame_queue.qlen; | |
842 | pinfo->dsn = mpath->dsn; | |
843 | pinfo->metric = mpath->metric; | |
844 | if (time_before(jiffies, mpath->exp_time)) | |
845 | pinfo->exptime = jiffies_to_msecs(mpath->exp_time - jiffies); | |
846 | pinfo->discovery_timeout = | |
847 | jiffies_to_msecs(mpath->discovery_timeout); | |
848 | pinfo->discovery_retries = mpath->discovery_retries; | |
849 | pinfo->flags = 0; | |
850 | if (mpath->flags & MESH_PATH_ACTIVE) | |
851 | pinfo->flags |= NL80211_MPATH_FLAG_ACTIVE; | |
852 | if (mpath->flags & MESH_PATH_RESOLVING) | |
853 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; | |
854 | if (mpath->flags & MESH_PATH_DSN_VALID) | |
855 | pinfo->flags |= NL80211_MPATH_FLAG_DSN_VALID; | |
856 | if (mpath->flags & MESH_PATH_FIXED) | |
857 | pinfo->flags |= NL80211_MPATH_FLAG_FIXED; | |
858 | if (mpath->flags & MESH_PATH_RESOLVING) | |
859 | pinfo->flags |= NL80211_MPATH_FLAG_RESOLVING; | |
860 | ||
861 | pinfo->flags = mpath->flags; | |
862 | } | |
863 | ||
864 | static int ieee80211_get_mpath(struct wiphy *wiphy, struct net_device *dev, | |
865 | u8 *dst, u8 *next_hop, struct mpath_info *pinfo) | |
866 | ||
867 | { | |
868 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
869 | struct mesh_path *mpath; | |
870 | ||
871 | if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) | |
872 | return -ENOTSUPP; | |
873 | ||
874 | rcu_read_lock(); | |
875 | mpath = mesh_path_lookup(dst, dev); | |
876 | if (!mpath) { | |
877 | rcu_read_unlock(); | |
878 | return -ENOENT; | |
879 | } | |
880 | memcpy(dst, mpath->dst, ETH_ALEN); | |
881 | mpath_set_pinfo(mpath, next_hop, pinfo); | |
882 | rcu_read_unlock(); | |
883 | return 0; | |
884 | } | |
885 | ||
886 | static int ieee80211_dump_mpath(struct wiphy *wiphy, struct net_device *dev, | |
887 | int idx, u8 *dst, u8 *next_hop, | |
888 | struct mpath_info *pinfo) | |
889 | { | |
890 | struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); | |
891 | struct mesh_path *mpath; | |
892 | ||
893 | if (sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT) | |
894 | return -ENOTSUPP; | |
895 | ||
896 | rcu_read_lock(); | |
897 | mpath = mesh_path_lookup_by_idx(idx, dev); | |
898 | if (!mpath) { | |
899 | rcu_read_unlock(); | |
900 | return -ENOENT; | |
901 | } | |
902 | memcpy(dst, mpath->dst, ETH_ALEN); | |
903 | mpath_set_pinfo(mpath, next_hop, pinfo); | |
904 | rcu_read_unlock(); | |
905 | return 0; | |
906 | } | |
907 | #endif | |
908 | ||
f0706e82 JB |
909 | struct cfg80211_ops mac80211_config_ops = { |
910 | .add_virtual_intf = ieee80211_add_iface, | |
911 | .del_virtual_intf = ieee80211_del_iface, | |
42613db7 | 912 | .change_virtual_intf = ieee80211_change_iface, |
e8cbb4cb JB |
913 | .add_key = ieee80211_add_key, |
914 | .del_key = ieee80211_del_key, | |
62da92fb | 915 | .get_key = ieee80211_get_key, |
e8cbb4cb | 916 | .set_default_key = ieee80211_config_default_key, |
5dfdaf58 JB |
917 | .add_beacon = ieee80211_add_beacon, |
918 | .set_beacon = ieee80211_set_beacon, | |
919 | .del_beacon = ieee80211_del_beacon, | |
4fd6931e JB |
920 | .add_station = ieee80211_add_station, |
921 | .del_station = ieee80211_del_station, | |
922 | .change_station = ieee80211_change_station, | |
7bbdd2d9 | 923 | .get_station = ieee80211_get_station, |
c5dd9c2b LCC |
924 | .dump_station = ieee80211_dump_station, |
925 | #ifdef CONFIG_MAC80211_MESH | |
926 | .add_mpath = ieee80211_add_mpath, | |
927 | .del_mpath = ieee80211_del_mpath, | |
928 | .change_mpath = ieee80211_change_mpath, | |
929 | .get_mpath = ieee80211_get_mpath, | |
930 | .dump_mpath = ieee80211_dump_mpath, | |
931 | #endif | |
f0706e82 | 932 | }; |