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nl80211: Add set/get for frag/rts threshold and retry limits
[linux-2.6.git] / net / mac80211 / wext.c
blob1eb6d8642a77138510bc9eb6ecaf420c57369676
1 /*
2 * Copyright 2002-2005, Instant802 Networks, Inc.
3 * Copyright 2005-2006, Devicescape Software, Inc.
4 *
5 * This program is free software; you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License version 2 as
7 * published by the Free Software Foundation.
8 */
9
10 #include <linux/module.h>
11 #include <linux/init.h>
12 #include <linux/netdevice.h>
13 #include <linux/types.h>
14 #include <linux/slab.h>
15 #include <linux/skbuff.h>
16 #include <linux/etherdevice.h>
17 #include <linux/if_arp.h>
18 #include <linux/wireless.h>
19 #include <net/iw_handler.h>
20 #include <asm/uaccess.h>
21
22 #include <net/mac80211.h>
23 #include "ieee80211_i.h"
24 #include "led.h"
25 #include "rate.h"
26 #include "wpa.h"
27 #include "aes_ccm.h"
28
29
30 static int ieee80211_set_encryption(struct ieee80211_sub_if_data *sdata, u8 *sta_addr,
31 int idx, int alg, int remove,
32 int set_tx_key, const u8 *_key,
33 size_t key_len)
34 {
35 struct ieee80211_local *local = sdata->local;
36 struct sta_info *sta;
37 struct ieee80211_key *key;
38 int err;
39
40 if (alg == ALG_AES_CMAC) {
41 if (idx < NUM_DEFAULT_KEYS ||
42 idx >= NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
43 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d "
44 "(BIP)\n", sdata->dev->name, idx);
45 return -EINVAL;
46 }
47 } else if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
48 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
49 sdata->dev->name, idx);
50 return -EINVAL;
51 }
52
53 if (remove) {
54 rcu_read_lock();
55
56 err = 0;
57
58 if (is_broadcast_ether_addr(sta_addr)) {
59 key = sdata->keys[idx];
60 } else {
61 sta = sta_info_get(local, sta_addr);
62 if (!sta) {
63 err = -ENOENT;
64 goto out_unlock;
65 }
66 key = sta->key;
67 }
68
69 ieee80211_key_free(key);
70 } else {
71 key = ieee80211_key_alloc(alg, idx, key_len, _key);
72 if (!key)
73 return -ENOMEM;
74
75 sta = NULL;
76 err = 0;
77
78 rcu_read_lock();
79
80 if (!is_broadcast_ether_addr(sta_addr)) {
81 set_tx_key = 0;
82 /*
83 * According to the standard, the key index of a
84 * pairwise key must be zero. However, some AP are
85 * broken when it comes to WEP key indices, so we
86 * work around this.
87 */
88 if (idx != 0 && alg != ALG_WEP) {
89 ieee80211_key_free(key);
90 err = -EINVAL;
91 goto out_unlock;
92 }
93
94 sta = sta_info_get(local, sta_addr);
95 if (!sta) {
96 ieee80211_key_free(key);
97 err = -ENOENT;
98 goto out_unlock;
99 }
100 }
101
102 if (alg == ALG_WEP &&
103 key_len != LEN_WEP40 && key_len != LEN_WEP104) {
104 ieee80211_key_free(key);
105 err = -EINVAL;
106 goto out_unlock;
107 }
108
109 ieee80211_key_link(key, sdata, sta);
110
111 if (set_tx_key || (!sta && !sdata->default_key && key))
112 ieee80211_set_default_key(sdata, idx);
113 if (alg == ALG_AES_CMAC &&
114 (set_tx_key || (!sta && !sdata->default_mgmt_key && key)))
115 ieee80211_set_default_mgmt_key(sdata, idx);
116 }
117
118 out_unlock:
119 rcu_read_unlock();
120
121 return err;
122 }
123
124 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
125 struct iw_request_info *info,
126 struct iw_point *data, char *extra)
127 {
128 struct ieee80211_sub_if_data *sdata;
129
130 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
131
132 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
133 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
134 if (ret)
135 return ret;
136 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
137 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
138 ieee80211_sta_req_auth(sdata);
139 return 0;
140 }
141
142 return -EOPNOTSUPP;
143 }
144
145 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
146 struct iw_request_info *info,
147 struct iw_freq *freq, char *extra)
148 {
149 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
150
151 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
152 return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
153 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
154 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
155
156 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
157 if (freq->e == 0) {
158 if (freq->m < 0) {
159 if (sdata->vif.type == NL80211_IFTYPE_STATION)
160 sdata->u.mgd.flags |=
161 IEEE80211_STA_AUTO_CHANNEL_SEL;
162 return 0;
163 } else
164 return ieee80211_set_freq(sdata,
165 ieee80211_channel_to_frequency(freq->m));
166 } else {
167 int i, div = 1000000;
168 for (i = 0; i < freq->e; i++)
169 div /= 10;
170 if (div > 0)
171 return ieee80211_set_freq(sdata, freq->m / div);
172 else
173 return -EINVAL;
174 }
175 }
176
177
178 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
179 struct iw_request_info *info,
180 struct iw_freq *freq, char *extra)
181 {
182 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
183 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
184
185 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
186 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
187
188 freq->m = local->hw.conf.channel->center_freq;
189 freq->e = 6;
190
191 return 0;
192 }
193
194
195 static int ieee80211_ioctl_siwessid(struct net_device *dev,
196 struct iw_request_info *info,
197 struct iw_point *data, char *ssid)
198 {
199 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
200 size_t len = data->length;
201 int ret;
202
203 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
204 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
205
206 /* iwconfig uses nul termination in SSID.. */
207 if (len > 0 && ssid[len - 1] == '\0')
208 len--;
209
210 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
211 if (data->flags)
212 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
213 else
214 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
215
216 ret = ieee80211_sta_set_ssid(sdata, ssid, len);
217 if (ret)
218 return ret;
219
220 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
221 ieee80211_sta_req_auth(sdata);
222 return 0;
223 }
224
225 return -EOPNOTSUPP;
226 }
227
228
229 static int ieee80211_ioctl_giwessid(struct net_device *dev,
230 struct iw_request_info *info,
231 struct iw_point *data, char *ssid)
232 {
233 size_t len;
234 struct ieee80211_sub_if_data *sdata;
235
236 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
237
238 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
239 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
240
241 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
242 int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
243 if (res == 0) {
244 data->length = len;
245 data->flags = 1;
246 } else
247 data->flags = 0;
248 return res;
249 }
250
251 return -EOPNOTSUPP;
252 }
253
254
255 static int ieee80211_ioctl_siwap(struct net_device *dev,
256 struct iw_request_info *info,
257 struct sockaddr *ap_addr, char *extra)
258 {
259 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
260
261 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
262 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
263
264 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
265 int ret;
266
267 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
268 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
269 IEEE80211_STA_AUTO_CHANNEL_SEL;
270 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
271 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
272 else
273 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
274 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
275 if (ret)
276 return ret;
277 sdata->u.mgd.flags &= ~IEEE80211_STA_EXT_SME;
278 ieee80211_sta_req_auth(sdata);
279 return 0;
280 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
281 /*
282 * If it is necessary to update the WDS peer address
283 * while the interface is running, then we need to do
284 * more work here, namely if it is running we need to
285 * add a new and remove the old STA entry, this is
286 * normally handled by _open() and _stop().
287 */
288 if (netif_running(dev))
289 return -EBUSY;
290
291 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
292 ETH_ALEN);
293
294 return 0;
295 }
296
297 return -EOPNOTSUPP;
298 }
299
300
301 static int ieee80211_ioctl_giwap(struct net_device *dev,
302 struct iw_request_info *info,
303 struct sockaddr *ap_addr, char *extra)
304 {
305 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
306
307 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
308 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
309
310 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
311 if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
312 ap_addr->sa_family = ARPHRD_ETHER;
313 memcpy(&ap_addr->sa_data, sdata->u.mgd.bssid, ETH_ALEN);
314 } else
315 memset(&ap_addr->sa_data, 0, ETH_ALEN);
316 return 0;
317 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
318 ap_addr->sa_family = ARPHRD_ETHER;
319 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
320 return 0;
321 }
322
323 return -EOPNOTSUPP;
324 }
325
326
327 static int ieee80211_ioctl_siwrate(struct net_device *dev,
328 struct iw_request_info *info,
329 struct iw_param *rate, char *extra)
330 {
331 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
332 int i, err = -EINVAL;
333 u32 target_rate = rate->value / 100000;
334 struct ieee80211_sub_if_data *sdata;
335 struct ieee80211_supported_band *sband;
336
337 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
338
339 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
340
341 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
342 * target_rate = X, rate->fixed = 1 means only rate X
343 * target_rate = X, rate->fixed = 0 means all rates <= X */
344 sdata->max_ratectrl_rateidx = -1;
345 sdata->force_unicast_rateidx = -1;
346 if (rate->value < 0)
347 return 0;
348
349 for (i=0; i< sband->n_bitrates; i++) {
350 struct ieee80211_rate *brate = &sband->bitrates[i];
351 int this_rate = brate->bitrate;
352
353 if (target_rate == this_rate) {
354 sdata->max_ratectrl_rateidx = i;
355 if (rate->fixed)
356 sdata->force_unicast_rateidx = i;
357 err = 0;
358 break;
359 }
360 }
361 return err;
362 }
363
364 static int ieee80211_ioctl_giwrate(struct net_device *dev,
365 struct iw_request_info *info,
366 struct iw_param *rate, char *extra)
367 {
368 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
369 struct sta_info *sta;
370 struct ieee80211_sub_if_data *sdata;
371 struct ieee80211_supported_band *sband;
372
373 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
374
375 if (sdata->vif.type != NL80211_IFTYPE_STATION)
376 return -EOPNOTSUPP;
377
378 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
379
380 rcu_read_lock();
381
382 sta = sta_info_get(local, sdata->u.mgd.bssid);
383
384 if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
385 rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
386 else
387 rate->value = 0;
388
389 rcu_read_unlock();
390
391 if (!sta)
392 return -ENODEV;
393
394 rate->value *= 100000;
395
396 return 0;
397 }
398
399 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
400 struct iw_request_info *info,
401 union iwreq_data *data, char *extra)
402 {
403 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
404 struct ieee80211_channel* chan = local->hw.conf.channel;
405 bool reconf = false;
406 u32 reconf_flags = 0;
407 int new_power_level;
408
409 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
410 return -EINVAL;
411 if (data->txpower.flags & IW_TXPOW_RANGE)
412 return -EINVAL;
413 if (!chan)
414 return -EINVAL;
415
416 /* only change when not disabling */
417 if (!data->txpower.disabled) {
418 if (data->txpower.fixed) {
419 if (data->txpower.value < 0)
420 return -EINVAL;
421 new_power_level = data->txpower.value;
422 /*
423 * Debatable, but we cannot do a fixed power
424 * level above the regulatory constraint.
425 * Use "iwconfig wlan0 txpower 15dBm" instead.
426 */
427 if (new_power_level > chan->max_power)
428 return -EINVAL;
429 } else {
430 /*
431 * Automatic power level setting, max being the value
432 * passed in from userland.
433 */
434 if (data->txpower.value < 0)
435 new_power_level = -1;
436 else
437 new_power_level = data->txpower.value;
438 }
439
440 reconf = true;
441
442 /*
443 * ieee80211_hw_config() will limit to the channel's
444 * max power and possibly power constraint from AP.
445 */
446 local->user_power_level = new_power_level;
447 }
448
449 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
450 local->hw.conf.radio_enabled = !(data->txpower.disabled);
451 reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
452 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
453 }
454
455 if (reconf || reconf_flags)
456 ieee80211_hw_config(local, reconf_flags);
457
458 return 0;
459 }
460
461 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
462 struct iw_request_info *info,
463 union iwreq_data *data, char *extra)
464 {
465 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
466
467 data->txpower.fixed = 1;
468 data->txpower.disabled = !(local->hw.conf.radio_enabled);
469 data->txpower.value = local->hw.conf.power_level;
470 data->txpower.flags = IW_TXPOW_DBM;
471
472 return 0;
473 }
474
475 static int ieee80211_ioctl_siwencode(struct net_device *dev,
476 struct iw_request_info *info,
477 struct iw_point *erq, char *keybuf)
478 {
479 struct ieee80211_sub_if_data *sdata;
480 int idx, i, alg = ALG_WEP;
481 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
482 int remove = 0, ret;
483
484 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
485
486 idx = erq->flags & IW_ENCODE_INDEX;
487 if (idx == 0) {
488 if (sdata->default_key)
489 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
490 if (sdata->default_key == sdata->keys[i]) {
491 idx = i;
492 break;
493 }
494 }
495 } else if (idx < 1 || idx > 4)
496 return -EINVAL;
497 else
498 idx--;
499
500 if (erq->flags & IW_ENCODE_DISABLED)
501 remove = 1;
502 else if (erq->length == 0) {
503 /* No key data - just set the default TX key index */
504 ieee80211_set_default_key(sdata, idx);
505 return 0;
506 }
507
508 ret = ieee80211_set_encryption(
509 sdata, bcaddr,
510 idx, alg, remove,
511 !sdata->default_key,
512 keybuf, erq->length);
513
514 if (!ret && sdata->vif.type == NL80211_IFTYPE_STATION) {
515 if (remove)
516 sdata->u.mgd.flags &= ~IEEE80211_STA_TKIP_WEP_USED;
517 else
518 sdata->u.mgd.flags |= IEEE80211_STA_TKIP_WEP_USED;
519 }
520
521 return ret;
522 }
523
524
525 static int ieee80211_ioctl_giwencode(struct net_device *dev,
526 struct iw_request_info *info,
527 struct iw_point *erq, char *key)
528 {
529 struct ieee80211_sub_if_data *sdata;
530 int idx, i;
531
532 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
533
534 idx = erq->flags & IW_ENCODE_INDEX;
535 if (idx < 1 || idx > 4) {
536 idx = -1;
537 if (!sdata->default_key)
538 idx = 0;
539 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
540 if (sdata->default_key == sdata->keys[i]) {
541 idx = i;
542 break;
543 }
544 }
545 if (idx < 0)
546 return -EINVAL;
547 } else
548 idx--;
549
550 erq->flags = idx + 1;
551
552 if (!sdata->keys[idx]) {
553 erq->length = 0;
554 erq->flags |= IW_ENCODE_DISABLED;
555 return 0;
556 }
557
558 memcpy(key, sdata->keys[idx]->conf.key,
559 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
560 erq->length = sdata->keys[idx]->conf.keylen;
561 erq->flags |= IW_ENCODE_ENABLED;
562
563 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
564 switch (sdata->u.mgd.auth_alg) {
565 case WLAN_AUTH_OPEN:
566 case WLAN_AUTH_LEAP:
567 erq->flags |= IW_ENCODE_OPEN;
568 break;
569 case WLAN_AUTH_SHARED_KEY:
570 erq->flags |= IW_ENCODE_RESTRICTED;
571 break;
572 }
573 }
574
575 return 0;
576 }
577
578 static int ieee80211_ioctl_siwpower(struct net_device *dev,
579 struct iw_request_info *info,
580 struct iw_param *wrq,
581 char *extra)
582 {
583 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
584 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
585 struct ieee80211_conf *conf = &local->hw.conf;
586 int timeout = 0;
587 bool ps;
588
589 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
590 return -EOPNOTSUPP;
591
592 if (sdata->vif.type != NL80211_IFTYPE_STATION)
593 return -EINVAL;
594
595 if (wrq->disabled) {
596 ps = false;
597 timeout = 0;
598 goto set;
599 }
600
601 switch (wrq->flags & IW_POWER_MODE) {
602 case IW_POWER_ON: /* If not specified */
603 case IW_POWER_MODE: /* If set all mask */
604 case IW_POWER_ALL_R: /* If explicitely state all */
605 ps = true;
606 break;
607 default: /* Otherwise we ignore */
608 return -EINVAL;
609 }
610
611 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
612 return -EINVAL;
613
614 if (wrq->flags & IW_POWER_TIMEOUT)
615 timeout = wrq->value / 1000;
616
617 set:
618 if (ps == sdata->u.mgd.powersave && timeout == conf->dynamic_ps_timeout)
619 return 0;
620
621 sdata->u.mgd.powersave = ps;
622 conf->dynamic_ps_timeout = timeout;
623
624 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
625 ieee80211_hw_config(local,
626 IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
627
628 ieee80211_recalc_ps(local, -1);
629
630 return 0;
631 }
632
633 static int ieee80211_ioctl_giwpower(struct net_device *dev,
634 struct iw_request_info *info,
635 union iwreq_data *wrqu,
636 char *extra)
637 {
638 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
639
640 wrqu->power.disabled = !sdata->u.mgd.powersave;
641
642 return 0;
643 }
644
645 static int ieee80211_ioctl_siwauth(struct net_device *dev,
646 struct iw_request_info *info,
647 struct iw_param *data, char *extra)
648 {
649 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
650 int ret = 0;
651
652 switch (data->flags & IW_AUTH_INDEX) {
653 case IW_AUTH_WPA_VERSION:
654 case IW_AUTH_CIPHER_GROUP:
655 case IW_AUTH_WPA_ENABLED:
656 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
657 case IW_AUTH_KEY_MGMT:
658 case IW_AUTH_CIPHER_GROUP_MGMT:
659 break;
660 case IW_AUTH_CIPHER_PAIRWISE:
661 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
662 if (data->value & (IW_AUTH_CIPHER_WEP40 |
663 IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP))
664 sdata->u.mgd.flags |=
665 IEEE80211_STA_TKIP_WEP_USED;
666 else
667 sdata->u.mgd.flags &=
668 ~IEEE80211_STA_TKIP_WEP_USED;
669 }
670 break;
671 case IW_AUTH_DROP_UNENCRYPTED:
672 sdata->drop_unencrypted = !!data->value;
673 break;
674 case IW_AUTH_PRIVACY_INVOKED:
675 if (sdata->vif.type != NL80211_IFTYPE_STATION)
676 ret = -EINVAL;
677 else {
678 sdata->u.mgd.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
679 /*
680 * Privacy invoked by wpa_supplicant, store the
681 * value and allow associating to a protected
682 * network without having a key up front.
683 */
684 if (data->value)
685 sdata->u.mgd.flags |=
686 IEEE80211_STA_PRIVACY_INVOKED;
687 }
688 break;
689 case IW_AUTH_80211_AUTH_ALG:
690 if (sdata->vif.type == NL80211_IFTYPE_STATION)
691 sdata->u.mgd.auth_algs = data->value;
692 else
693 ret = -EOPNOTSUPP;
694 break;
695 case IW_AUTH_MFP:
696 if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) {
697 ret = -EOPNOTSUPP;
698 break;
699 }
700 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
701 switch (data->value) {
702 case IW_AUTH_MFP_DISABLED:
703 sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
704 break;
705 case IW_AUTH_MFP_OPTIONAL:
706 sdata->u.mgd.mfp = IEEE80211_MFP_OPTIONAL;
707 break;
708 case IW_AUTH_MFP_REQUIRED:
709 sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
710 break;
711 default:
712 ret = -EINVAL;
713 }
714 } else
715 ret = -EOPNOTSUPP;
716 break;
717 default:
718 ret = -EOPNOTSUPP;
719 break;
720 }
721 return ret;
722 }
723
724 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
725 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
726 {
727 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
728 struct iw_statistics *wstats = &local->wstats;
729 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
730 struct sta_info *sta = NULL;
731
732 rcu_read_lock();
733
734 if (sdata->vif.type == NL80211_IFTYPE_STATION)
735 sta = sta_info_get(local, sdata->u.mgd.bssid);
736
737 if (!sta) {
738 wstats->discard.fragment = 0;
739 wstats->discard.misc = 0;
740 wstats->qual.qual = 0;
741 wstats->qual.level = 0;
742 wstats->qual.noise = 0;
743 wstats->qual.updated = IW_QUAL_ALL_INVALID;
744 } else {
745 wstats->qual.updated = 0;
746 /*
747 * mirror what cfg80211 does for iwrange/scan results,
748 * otherwise userspace gets confused.
749 */
750 if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
751 IEEE80211_HW_SIGNAL_DBM)) {
752 wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED;
753 wstats->qual.updated |= IW_QUAL_QUAL_UPDATED;
754 } else {
755 wstats->qual.updated |= IW_QUAL_LEVEL_INVALID;
756 wstats->qual.updated |= IW_QUAL_QUAL_INVALID;
757 }
758
759 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
760 wstats->qual.level = sta->last_signal;
761 wstats->qual.qual = sta->last_signal;
762 } else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
763 int sig = sta->last_signal;
764
765 wstats->qual.updated |= IW_QUAL_DBM;
766 wstats->qual.level = sig;
767 if (sig < -110)
768 sig = -110;
769 else if (sig > -40)
770 sig = -40;
771 wstats->qual.qual = sig + 110;
772 }
773
774 if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
775 /*
776 * This assumes that if driver reports noise, it also
777 * reports signal in dBm.
778 */
779 wstats->qual.noise = sta->last_noise;
780 wstats->qual.updated |= IW_QUAL_NOISE_UPDATED;
781 } else {
782 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
783 }
784 }
785
786 rcu_read_unlock();
787
788 return wstats;
789 }
790
791 static int ieee80211_ioctl_giwauth(struct net_device *dev,
792 struct iw_request_info *info,
793 struct iw_param *data, char *extra)
794 {
795 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
796 int ret = 0;
797
798 switch (data->flags & IW_AUTH_INDEX) {
799 case IW_AUTH_80211_AUTH_ALG:
800 if (sdata->vif.type == NL80211_IFTYPE_STATION)
801 data->value = sdata->u.mgd.auth_algs;
802 else
803 ret = -EOPNOTSUPP;
804 break;
805 default:
806 ret = -EOPNOTSUPP;
807 break;
808 }
809 return ret;
810 }
811
812
813 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
814 struct iw_request_info *info,
815 struct iw_point *erq, char *extra)
816 {
817 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
818 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
819 int uninitialized_var(alg), idx, i, remove = 0;
820
821 switch (ext->alg) {
822 case IW_ENCODE_ALG_NONE:
823 remove = 1;
824 break;
825 case IW_ENCODE_ALG_WEP:
826 alg = ALG_WEP;
827 break;
828 case IW_ENCODE_ALG_TKIP:
829 alg = ALG_TKIP;
830 break;
831 case IW_ENCODE_ALG_CCMP:
832 alg = ALG_CCMP;
833 break;
834 case IW_ENCODE_ALG_AES_CMAC:
835 alg = ALG_AES_CMAC;
836 break;
837 default:
838 return -EOPNOTSUPP;
839 }
840
841 if (erq->flags & IW_ENCODE_DISABLED)
842 remove = 1;
843
844 idx = erq->flags & IW_ENCODE_INDEX;
845 if (alg == ALG_AES_CMAC) {
846 if (idx < NUM_DEFAULT_KEYS + 1 ||
847 idx > NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
848 idx = -1;
849 if (!sdata->default_mgmt_key)
850 idx = 0;
851 else for (i = NUM_DEFAULT_KEYS;
852 i < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS;
853 i++) {
854 if (sdata->default_mgmt_key == sdata->keys[i])
855 {
856 idx = i;
857 break;
858 }
859 }
860 if (idx < 0)
861 return -EINVAL;
862 } else
863 idx--;
864 } else {
865 if (idx < 1 || idx > 4) {
866 idx = -1;
867 if (!sdata->default_key)
868 idx = 0;
869 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
870 if (sdata->default_key == sdata->keys[i]) {
871 idx = i;
872 break;
873 }
874 }
875 if (idx < 0)
876 return -EINVAL;
877 } else
878 idx--;
879 }
880
881 return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
882 remove,
883 ext->ext_flags &
884 IW_ENCODE_EXT_SET_TX_KEY,
885 ext->key, ext->key_len);
886 }
887
888
889 /* Structures to export the Wireless Handlers */
890
891 static const iw_handler ieee80211_handler[] =
892 {
893 (iw_handler) NULL, /* SIOCSIWCOMMIT */
894 (iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */
895 (iw_handler) NULL, /* SIOCSIWNWID */
896 (iw_handler) NULL, /* SIOCGIWNWID */
897 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
898 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
899 (iw_handler) cfg80211_wext_siwmode, /* SIOCSIWMODE */
900 (iw_handler) cfg80211_wext_giwmode, /* SIOCGIWMODE */
901 (iw_handler) NULL, /* SIOCSIWSENS */
902 (iw_handler) NULL, /* SIOCGIWSENS */
903 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
904 (iw_handler) cfg80211_wext_giwrange, /* SIOCGIWRANGE */
905 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
906 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
907 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
908 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
909 (iw_handler) NULL, /* SIOCSIWSPY */
910 (iw_handler) NULL, /* SIOCGIWSPY */
911 (iw_handler) NULL, /* SIOCSIWTHRSPY */
912 (iw_handler) NULL, /* SIOCGIWTHRSPY */
913 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
914 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
915 (iw_handler) cfg80211_wext_siwmlme, /* SIOCSIWMLME */
916 (iw_handler) NULL, /* SIOCGIWAPLIST */
917 (iw_handler) cfg80211_wext_siwscan, /* SIOCSIWSCAN */
918 (iw_handler) cfg80211_wext_giwscan, /* SIOCGIWSCAN */
919 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
920 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
921 (iw_handler) NULL, /* SIOCSIWNICKN */
922 (iw_handler) NULL, /* SIOCGIWNICKN */
923 (iw_handler) NULL, /* -- hole -- */
924 (iw_handler) NULL, /* -- hole -- */
925 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
926 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
927 (iw_handler) cfg80211_wext_siwrts, /* SIOCSIWRTS */
928 (iw_handler) cfg80211_wext_giwrts, /* SIOCGIWRTS */
929 (iw_handler) cfg80211_wext_siwfrag, /* SIOCSIWFRAG */
930 (iw_handler) cfg80211_wext_giwfrag, /* SIOCGIWFRAG */
931 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
932 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
933 (iw_handler) cfg80211_wext_siwretry, /* SIOCSIWRETRY */
934 (iw_handler) cfg80211_wext_giwretry, /* SIOCGIWRETRY */
935 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
936 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
937 (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */
938 (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */
939 (iw_handler) NULL, /* -- hole -- */
940 (iw_handler) NULL, /* -- hole -- */
941 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
942 (iw_handler) NULL, /* SIOCGIWGENIE */
943 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
944 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
945 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
946 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
947 (iw_handler) NULL, /* SIOCSIWPMKSA */
948 (iw_handler) NULL, /* -- hole -- */
949 };
950
951 const struct iw_handler_def ieee80211_iw_handler_def =
952 {
953 .num_standard = ARRAY_SIZE(ieee80211_handler),
954 .standard = (iw_handler *) ieee80211_handler,
955 .get_wireless_stats = ieee80211_get_wireless_stats,
956 };
Linus' kernel tree