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mac80211: Fix quality reporting for wireless stats
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / net / mac80211 / wext.c
blob935c63ed3dfae554e52cc2563a13588aec4fccff
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->flags & IEEE80211_SDATA_USERSPACE_MLME)
133 return -EOPNOTSUPP;
134
135 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
136 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
137 if (ret)
138 return ret;
139 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
140 ieee80211_sta_req_auth(sdata);
141 return 0;
142 }
143
144 return -EOPNOTSUPP;
145 }
146
147 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
148 struct iw_request_info *info,
149 struct iw_freq *freq, char *extra)
150 {
151 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
152
153 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
154 sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_CHANNEL_SEL;
155 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
156 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
157
158 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
159 if (freq->e == 0) {
160 if (freq->m < 0) {
161 if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
162 sdata->u.ibss.flags |=
163 IEEE80211_IBSS_AUTO_CHANNEL_SEL;
164 else if (sdata->vif.type == NL80211_IFTYPE_STATION)
165 sdata->u.mgd.flags |=
166 IEEE80211_STA_AUTO_CHANNEL_SEL;
167 return 0;
168 } else
169 return ieee80211_set_freq(sdata,
170 ieee80211_channel_to_frequency(freq->m));
171 } else {
172 int i, div = 1000000;
173 for (i = 0; i < freq->e; i++)
174 div /= 10;
175 if (div > 0)
176 return ieee80211_set_freq(sdata, freq->m / div);
177 else
178 return -EINVAL;
179 }
180 }
181
182
183 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
184 struct iw_request_info *info,
185 struct iw_freq *freq, char *extra)
186 {
187 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
188
189 freq->m = local->hw.conf.channel->center_freq;
190 freq->e = 6;
191
192 return 0;
193 }
194
195
196 static int ieee80211_ioctl_siwessid(struct net_device *dev,
197 struct iw_request_info *info,
198 struct iw_point *data, char *ssid)
199 {
200 struct ieee80211_sub_if_data *sdata;
201 size_t len = data->length;
202 int ret;
203
204 /* iwconfig uses nul termination in SSID.. */
205 if (len > 0 && ssid[len - 1] == '\0')
206 len--;
207
208 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
209 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
210 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
211 if (len > IEEE80211_MAX_SSID_LEN)
212 return -EINVAL;
213 memcpy(sdata->u.mgd.ssid, ssid, len);
214 sdata->u.mgd.ssid_len = len;
215 return 0;
216 }
217
218 if (data->flags)
219 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
220 else
221 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_SSID_SEL;
222
223 ret = ieee80211_sta_set_ssid(sdata, ssid, len);
224 if (ret)
225 return ret;
226
227 ieee80211_sta_req_auth(sdata);
228 return 0;
229 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
230 return ieee80211_ibss_set_ssid(sdata, ssid, len);
231
232 return -EOPNOTSUPP;
233 }
234
235
236 static int ieee80211_ioctl_giwessid(struct net_device *dev,
237 struct iw_request_info *info,
238 struct iw_point *data, char *ssid)
239 {
240 size_t len;
241
242 struct ieee80211_sub_if_data *sdata;
243 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
244 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
245 int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
246 if (res == 0) {
247 data->length = len;
248 data->flags = 1;
249 } else
250 data->flags = 0;
251 return res;
252 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
253 int res = ieee80211_ibss_get_ssid(sdata, ssid, &len);
254 if (res == 0) {
255 data->length = len;
256 data->flags = 1;
257 } else
258 data->flags = 0;
259 return res;
260 }
261
262 return -EOPNOTSUPP;
263 }
264
265
266 static int ieee80211_ioctl_siwap(struct net_device *dev,
267 struct iw_request_info *info,
268 struct sockaddr *ap_addr, char *extra)
269 {
270 struct ieee80211_sub_if_data *sdata;
271
272 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
273 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
274 int ret;
275 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
276 memcpy(sdata->u.mgd.bssid, (u8 *) &ap_addr->sa_data,
277 ETH_ALEN);
278 return 0;
279 }
280 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
281 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
282 IEEE80211_STA_AUTO_CHANNEL_SEL;
283 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
284 sdata->u.mgd.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
285 else
286 sdata->u.mgd.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
287 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
288 if (ret)
289 return ret;
290 ieee80211_sta_req_auth(sdata);
291 return 0;
292 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
293 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
294 sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL |
295 IEEE80211_IBSS_AUTO_CHANNEL_SEL;
296 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
297 sdata->u.ibss.flags |= IEEE80211_IBSS_AUTO_BSSID_SEL;
298 else
299 sdata->u.ibss.flags &= ~IEEE80211_IBSS_AUTO_BSSID_SEL;
300
301 return ieee80211_ibss_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
302 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
303 /*
304 * If it is necessary to update the WDS peer address
305 * while the interface is running, then we need to do
306 * more work here, namely if it is running we need to
307 * add a new and remove the old STA entry, this is
308 * normally handled by _open() and _stop().
309 */
310 if (netif_running(dev))
311 return -EBUSY;
312
313 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
314 ETH_ALEN);
315
316 return 0;
317 }
318
319 return -EOPNOTSUPP;
320 }
321
322
323 static int ieee80211_ioctl_giwap(struct net_device *dev,
324 struct iw_request_info *info,
325 struct sockaddr *ap_addr, char *extra)
326 {
327 struct ieee80211_sub_if_data *sdata;
328
329 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
330 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
331 if (sdata->u.mgd.state == IEEE80211_STA_MLME_ASSOCIATED) {
332 ap_addr->sa_family = ARPHRD_ETHER;
333 memcpy(&ap_addr->sa_data, sdata->u.mgd.bssid, ETH_ALEN);
334 } else
335 memset(&ap_addr->sa_data, 0, ETH_ALEN);
336 return 0;
337 } else if (sdata->vif.type == NL80211_IFTYPE_ADHOC) {
338 if (sdata->u.ibss.state == IEEE80211_IBSS_MLME_JOINED) {
339 ap_addr->sa_family = ARPHRD_ETHER;
340 memcpy(&ap_addr->sa_data, sdata->u.ibss.bssid, ETH_ALEN);
341 } else
342 memset(&ap_addr->sa_data, 0, ETH_ALEN);
343 return 0;
344 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
345 ap_addr->sa_family = ARPHRD_ETHER;
346 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
347 return 0;
348 }
349
350 return -EOPNOTSUPP;
351 }
352
353
354 static int ieee80211_ioctl_siwrate(struct net_device *dev,
355 struct iw_request_info *info,
356 struct iw_param *rate, char *extra)
357 {
358 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
359 int i, err = -EINVAL;
360 u32 target_rate = rate->value / 100000;
361 struct ieee80211_sub_if_data *sdata;
362 struct ieee80211_supported_band *sband;
363
364 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
365
366 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
367
368 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
369 * target_rate = X, rate->fixed = 1 means only rate X
370 * target_rate = X, rate->fixed = 0 means all rates <= X */
371 sdata->max_ratectrl_rateidx = -1;
372 sdata->force_unicast_rateidx = -1;
373 if (rate->value < 0)
374 return 0;
375
376 for (i=0; i< sband->n_bitrates; i++) {
377 struct ieee80211_rate *brate = &sband->bitrates[i];
378 int this_rate = brate->bitrate;
379
380 if (target_rate == this_rate) {
381 sdata->max_ratectrl_rateidx = i;
382 if (rate->fixed)
383 sdata->force_unicast_rateidx = i;
384 err = 0;
385 break;
386 }
387 }
388 return err;
389 }
390
391 static int ieee80211_ioctl_giwrate(struct net_device *dev,
392 struct iw_request_info *info,
393 struct iw_param *rate, char *extra)
394 {
395 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
396 struct sta_info *sta;
397 struct ieee80211_sub_if_data *sdata;
398 struct ieee80211_supported_band *sband;
399
400 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
401
402 if (sdata->vif.type != NL80211_IFTYPE_STATION)
403 return -EOPNOTSUPP;
404
405 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
406
407 rcu_read_lock();
408
409 sta = sta_info_get(local, sdata->u.mgd.bssid);
410
411 if (sta && !(sta->last_tx_rate.flags & IEEE80211_TX_RC_MCS))
412 rate->value = sband->bitrates[sta->last_tx_rate.idx].bitrate;
413 else
414 rate->value = 0;
415
416 rcu_read_unlock();
417
418 if (!sta)
419 return -ENODEV;
420
421 rate->value *= 100000;
422
423 return 0;
424 }
425
426 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
427 struct iw_request_info *info,
428 union iwreq_data *data, char *extra)
429 {
430 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
431 struct ieee80211_channel* chan = local->hw.conf.channel;
432 u32 reconf_flags = 0;
433 int new_power_level;
434
435 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
436 return -EINVAL;
437 if (data->txpower.flags & IW_TXPOW_RANGE)
438 return -EINVAL;
439 if (!chan)
440 return -EINVAL;
441
442 if (data->txpower.fixed)
443 new_power_level = min(data->txpower.value, chan->max_power);
444 else /* Automatic power level setting */
445 new_power_level = chan->max_power;
446
447 local->user_power_level = new_power_level;
448 if (local->hw.conf.power_level != new_power_level)
449 reconf_flags |= IEEE80211_CONF_CHANGE_POWER;
450
451 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
452 local->hw.conf.radio_enabled = !(data->txpower.disabled);
453 reconf_flags |= IEEE80211_CONF_CHANGE_RADIO_ENABLED;
454 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
455 }
456
457 if (reconf_flags)
458 ieee80211_hw_config(local, reconf_flags);
459
460 return 0;
461 }
462
463 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
464 struct iw_request_info *info,
465 union iwreq_data *data, char *extra)
466 {
467 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
468
469 data->txpower.fixed = 1;
470 data->txpower.disabled = !(local->hw.conf.radio_enabled);
471 data->txpower.value = local->hw.conf.power_level;
472 data->txpower.flags = IW_TXPOW_DBM;
473
474 return 0;
475 }
476
477 static int ieee80211_ioctl_siwrts(struct net_device *dev,
478 struct iw_request_info *info,
479 struct iw_param *rts, char *extra)
480 {
481 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
482
483 if (rts->disabled)
484 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
485 else if (!rts->fixed)
486 /* if the rts value is not fixed, then take default */
487 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
488 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
489 return -EINVAL;
490 else
491 local->rts_threshold = rts->value;
492
493 /* If the wlan card performs RTS/CTS in hardware/firmware,
494 * configure it here */
495
496 if (local->ops->set_rts_threshold)
497 local->ops->set_rts_threshold(local_to_hw(local),
498 local->rts_threshold);
499
500 return 0;
501 }
502
503 static int ieee80211_ioctl_giwrts(struct net_device *dev,
504 struct iw_request_info *info,
505 struct iw_param *rts, char *extra)
506 {
507 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
508
509 rts->value = local->rts_threshold;
510 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
511 rts->fixed = 1;
512
513 return 0;
514 }
515
516
517 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
518 struct iw_request_info *info,
519 struct iw_param *frag, char *extra)
520 {
521 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
522
523 if (frag->disabled)
524 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
525 else if (!frag->fixed)
526 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
527 else if (frag->value < 256 ||
528 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
529 return -EINVAL;
530 else {
531 /* Fragment length must be even, so strip LSB. */
532 local->fragmentation_threshold = frag->value & ~0x1;
533 }
534
535 return 0;
536 }
537
538 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
539 struct iw_request_info *info,
540 struct iw_param *frag, char *extra)
541 {
542 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
543
544 frag->value = local->fragmentation_threshold;
545 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
546 frag->fixed = 1;
547
548 return 0;
549 }
550
551
552 static int ieee80211_ioctl_siwretry(struct net_device *dev,
553 struct iw_request_info *info,
554 struct iw_param *retry, char *extra)
555 {
556 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
557
558 if (retry->disabled ||
559 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
560 return -EINVAL;
561
562 if (retry->flags & IW_RETRY_MAX) {
563 local->hw.conf.long_frame_max_tx_count = retry->value;
564 } else if (retry->flags & IW_RETRY_MIN) {
565 local->hw.conf.short_frame_max_tx_count = retry->value;
566 } else {
567 local->hw.conf.long_frame_max_tx_count = retry->value;
568 local->hw.conf.short_frame_max_tx_count = retry->value;
569 }
570
571 ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_RETRY_LIMITS);
572
573 return 0;
574 }
575
576
577 static int ieee80211_ioctl_giwretry(struct net_device *dev,
578 struct iw_request_info *info,
579 struct iw_param *retry, char *extra)
580 {
581 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
582
583 retry->disabled = 0;
584 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
585 /* first return min value, iwconfig will ask max value
586 * later if needed */
587 retry->flags |= IW_RETRY_LIMIT;
588 retry->value = local->hw.conf.short_frame_max_tx_count;
589 if (local->hw.conf.long_frame_max_tx_count !=
590 local->hw.conf.short_frame_max_tx_count)
591 retry->flags |= IW_RETRY_MIN;
592 return 0;
593 }
594 if (retry->flags & IW_RETRY_MAX) {
595 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
596 retry->value = local->hw.conf.long_frame_max_tx_count;
597 }
598
599 return 0;
600 }
601
602 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
603 struct iw_request_info *info,
604 struct iw_point *data, char *extra)
605 {
606 struct ieee80211_sub_if_data *sdata;
607 struct iw_mlme *mlme = (struct iw_mlme *) extra;
608
609 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
610 if (!(sdata->vif.type == NL80211_IFTYPE_STATION))
611 return -EINVAL;
612
613 switch (mlme->cmd) {
614 case IW_MLME_DEAUTH:
615 /* TODO: mlme->addr.sa_data */
616 return ieee80211_sta_deauthenticate(sdata, mlme->reason_code);
617 case IW_MLME_DISASSOC:
618 /* TODO: mlme->addr.sa_data */
619 return ieee80211_sta_disassociate(sdata, mlme->reason_code);
620 default:
621 return -EOPNOTSUPP;
622 }
623 }
624
625
626 static int ieee80211_ioctl_siwencode(struct net_device *dev,
627 struct iw_request_info *info,
628 struct iw_point *erq, char *keybuf)
629 {
630 struct ieee80211_sub_if_data *sdata;
631 int idx, i, alg = ALG_WEP;
632 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
633 int remove = 0;
634
635 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
636
637 idx = erq->flags & IW_ENCODE_INDEX;
638 if (idx == 0) {
639 if (sdata->default_key)
640 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
641 if (sdata->default_key == sdata->keys[i]) {
642 idx = i;
643 break;
644 }
645 }
646 } else if (idx < 1 || idx > 4)
647 return -EINVAL;
648 else
649 idx--;
650
651 if (erq->flags & IW_ENCODE_DISABLED)
652 remove = 1;
653 else if (erq->length == 0) {
654 /* No key data - just set the default TX key index */
655 ieee80211_set_default_key(sdata, idx);
656 return 0;
657 }
658
659 return ieee80211_set_encryption(
660 sdata, bcaddr,
661 idx, alg, remove,
662 !sdata->default_key,
663 keybuf, erq->length);
664 }
665
666
667 static int ieee80211_ioctl_giwencode(struct net_device *dev,
668 struct iw_request_info *info,
669 struct iw_point *erq, char *key)
670 {
671 struct ieee80211_sub_if_data *sdata;
672 int idx, i;
673
674 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
675
676 idx = erq->flags & IW_ENCODE_INDEX;
677 if (idx < 1 || idx > 4) {
678 idx = -1;
679 if (!sdata->default_key)
680 idx = 0;
681 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
682 if (sdata->default_key == sdata->keys[i]) {
683 idx = i;
684 break;
685 }
686 }
687 if (idx < 0)
688 return -EINVAL;
689 } else
690 idx--;
691
692 erq->flags = idx + 1;
693
694 if (!sdata->keys[idx]) {
695 erq->length = 0;
696 erq->flags |= IW_ENCODE_DISABLED;
697 return 0;
698 }
699
700 memcpy(key, sdata->keys[idx]->conf.key,
701 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
702 erq->length = sdata->keys[idx]->conf.keylen;
703 erq->flags |= IW_ENCODE_ENABLED;
704
705 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
706 switch (sdata->u.mgd.auth_alg) {
707 case WLAN_AUTH_OPEN:
708 case WLAN_AUTH_LEAP:
709 erq->flags |= IW_ENCODE_OPEN;
710 break;
711 case WLAN_AUTH_SHARED_KEY:
712 erq->flags |= IW_ENCODE_RESTRICTED;
713 break;
714 }
715 }
716
717 return 0;
718 }
719
720 static int ieee80211_ioctl_siwpower(struct net_device *dev,
721 struct iw_request_info *info,
722 struct iw_param *wrq,
723 char *extra)
724 {
725 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
726 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
727 struct ieee80211_conf *conf = &local->hw.conf;
728 int ret = 0, timeout = 0;
729 bool ps;
730
731 if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS))
732 return -EOPNOTSUPP;
733
734 if (sdata->vif.type != NL80211_IFTYPE_STATION)
735 return -EINVAL;
736
737 if (wrq->disabled) {
738 ps = false;
739 timeout = 0;
740 goto set;
741 }
742
743 switch (wrq->flags & IW_POWER_MODE) {
744 case IW_POWER_ON: /* If not specified */
745 case IW_POWER_MODE: /* If set all mask */
746 case IW_POWER_ALL_R: /* If explicitely state all */
747 ps = true;
748 break;
749 default: /* Otherwise we ignore */
750 return -EINVAL;
751 }
752
753 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
754 return -EINVAL;
755
756 if (wrq->flags & IW_POWER_TIMEOUT)
757 timeout = wrq->value / 1000;
758
759 set:
760 if (ps == local->powersave && timeout == conf->dynamic_ps_timeout)
761 return ret;
762
763 local->powersave = ps;
764 conf->dynamic_ps_timeout = timeout;
765
766 if (local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)
767 ret = ieee80211_hw_config(local,
768 IEEE80211_CONF_CHANGE_DYNPS_TIMEOUT);
769
770 if (!(sdata->u.mgd.flags & IEEE80211_STA_ASSOCIATED))
771 return ret;
772
773 if (conf->dynamic_ps_timeout > 0 &&
774 !(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
775 mod_timer(&local->dynamic_ps_timer, jiffies +
776 msecs_to_jiffies(conf->dynamic_ps_timeout));
777 } else {
778 if (local->powersave) {
779 if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
780 ieee80211_send_nullfunc(local, sdata, 1);
781 conf->flags |= IEEE80211_CONF_PS;
782 ret = ieee80211_hw_config(local,
783 IEEE80211_CONF_CHANGE_PS);
784 } else {
785 conf->flags &= ~IEEE80211_CONF_PS;
786 ret = ieee80211_hw_config(local,
787 IEEE80211_CONF_CHANGE_PS);
788 if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
789 ieee80211_send_nullfunc(local, sdata, 0);
790 del_timer_sync(&local->dynamic_ps_timer);
791 cancel_work_sync(&local->dynamic_ps_enable_work);
792 }
793 }
794
795 return ret;
796 }
797
798 static int ieee80211_ioctl_giwpower(struct net_device *dev,
799 struct iw_request_info *info,
800 union iwreq_data *wrqu,
801 char *extra)
802 {
803 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
804
805 wrqu->power.disabled = !local->powersave;
806
807 return 0;
808 }
809
810 static int ieee80211_ioctl_siwauth(struct net_device *dev,
811 struct iw_request_info *info,
812 struct iw_param *data, char *extra)
813 {
814 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
815 int ret = 0;
816
817 switch (data->flags & IW_AUTH_INDEX) {
818 case IW_AUTH_WPA_VERSION:
819 case IW_AUTH_CIPHER_GROUP:
820 case IW_AUTH_WPA_ENABLED:
821 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
822 case IW_AUTH_KEY_MGMT:
823 case IW_AUTH_CIPHER_GROUP_MGMT:
824 break;
825 case IW_AUTH_CIPHER_PAIRWISE:
826 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
827 if (data->value & (IW_AUTH_CIPHER_WEP40 |
828 IW_AUTH_CIPHER_WEP104 | IW_AUTH_CIPHER_TKIP))
829 sdata->u.mgd.flags |=
830 IEEE80211_STA_TKIP_WEP_USED;
831 else
832 sdata->u.mgd.flags &=
833 ~IEEE80211_STA_TKIP_WEP_USED;
834 }
835 break;
836 case IW_AUTH_DROP_UNENCRYPTED:
837 sdata->drop_unencrypted = !!data->value;
838 break;
839 case IW_AUTH_PRIVACY_INVOKED:
840 if (sdata->vif.type != NL80211_IFTYPE_STATION)
841 ret = -EINVAL;
842 else {
843 sdata->u.mgd.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
844 /*
845 * Privacy invoked by wpa_supplicant, store the
846 * value and allow associating to a protected
847 * network without having a key up front.
848 */
849 if (data->value)
850 sdata->u.mgd.flags |=
851 IEEE80211_STA_PRIVACY_INVOKED;
852 }
853 break;
854 case IW_AUTH_80211_AUTH_ALG:
855 if (sdata->vif.type == NL80211_IFTYPE_STATION)
856 sdata->u.mgd.auth_algs = data->value;
857 else
858 ret = -EOPNOTSUPP;
859 break;
860 case IW_AUTH_MFP:
861 if (!(sdata->local->hw.flags & IEEE80211_HW_MFP_CAPABLE)) {
862 ret = -EOPNOTSUPP;
863 break;
864 }
865 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
866 switch (data->value) {
867 case IW_AUTH_MFP_DISABLED:
868 sdata->u.mgd.mfp = IEEE80211_MFP_DISABLED;
869 break;
870 case IW_AUTH_MFP_OPTIONAL:
871 sdata->u.mgd.mfp = IEEE80211_MFP_OPTIONAL;
872 break;
873 case IW_AUTH_MFP_REQUIRED:
874 sdata->u.mgd.mfp = IEEE80211_MFP_REQUIRED;
875 break;
876 default:
877 ret = -EINVAL;
878 }
879 } else
880 ret = -EOPNOTSUPP;
881 break;
882 default:
883 ret = -EOPNOTSUPP;
884 break;
885 }
886 return ret;
887 }
888
889 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
890 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
891 {
892 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
893 struct iw_statistics *wstats = &local->wstats;
894 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
895 struct sta_info *sta = NULL;
896
897 rcu_read_lock();
898
899 if (sdata->vif.type == NL80211_IFTYPE_STATION)
900 sta = sta_info_get(local, sdata->u.mgd.bssid);
901
902 if (!sta) {
903 wstats->discard.fragment = 0;
904 wstats->discard.misc = 0;
905 wstats->qual.qual = 0;
906 wstats->qual.level = 0;
907 wstats->qual.noise = 0;
908 wstats->qual.updated = IW_QUAL_ALL_INVALID;
909 } else {
910 wstats->qual.updated = 0;
911 /*
912 * mirror what cfg80211 does for iwrange/scan results,
913 * otherwise userspace gets confused.
914 */
915 if (local->hw.flags & (IEEE80211_HW_SIGNAL_UNSPEC |
916 IEEE80211_HW_SIGNAL_DBM)) {
917 wstats->qual.updated |= IW_QUAL_LEVEL_UPDATED;
918 wstats->qual.updated |= IW_QUAL_QUAL_UPDATED;
919 } else {
920 wstats->qual.updated |= IW_QUAL_LEVEL_INVALID;
921 wstats->qual.updated |= IW_QUAL_QUAL_INVALID;
922 }
923
924 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC) {
925 wstats->qual.level = sta->last_signal;
926 wstats->qual.qual = sta->last_signal;
927 } else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM) {
928 int sig = sta->last_signal;
929
930 wstats->qual.updated |= IW_QUAL_DBM;
931 wstats->qual.level = sig;
932 if (sig < -110)
933 sig = -110;
934 else if (sig > -40)
935 sig = -40;
936 wstats->qual.qual = sig + 110;
937 }
938
939 if (local->hw.flags & IEEE80211_HW_NOISE_DBM) {
940 /*
941 * This assumes that if driver reports noise, it also
942 * reports signal in dBm.
943 */
944 wstats->qual.noise = sta->last_noise;
945 wstats->qual.updated |= IW_QUAL_NOISE_UPDATED;
946 } else {
947 wstats->qual.updated |= IW_QUAL_NOISE_INVALID;
948 }
949 }
950
951 rcu_read_unlock();
952
953 return wstats;
954 }
955
956 static int ieee80211_ioctl_giwauth(struct net_device *dev,
957 struct iw_request_info *info,
958 struct iw_param *data, char *extra)
959 {
960 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
961 int ret = 0;
962
963 switch (data->flags & IW_AUTH_INDEX) {
964 case IW_AUTH_80211_AUTH_ALG:
965 if (sdata->vif.type == NL80211_IFTYPE_STATION)
966 data->value = sdata->u.mgd.auth_algs;
967 else
968 ret = -EOPNOTSUPP;
969 break;
970 default:
971 ret = -EOPNOTSUPP;
972 break;
973 }
974 return ret;
975 }
976
977
978 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
979 struct iw_request_info *info,
980 struct iw_point *erq, char *extra)
981 {
982 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
983 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
984 int uninitialized_var(alg), idx, i, remove = 0;
985
986 switch (ext->alg) {
987 case IW_ENCODE_ALG_NONE:
988 remove = 1;
989 break;
990 case IW_ENCODE_ALG_WEP:
991 alg = ALG_WEP;
992 break;
993 case IW_ENCODE_ALG_TKIP:
994 alg = ALG_TKIP;
995 break;
996 case IW_ENCODE_ALG_CCMP:
997 alg = ALG_CCMP;
998 break;
999 case IW_ENCODE_ALG_AES_CMAC:
1000 alg = ALG_AES_CMAC;
1001 break;
1002 default:
1003 return -EOPNOTSUPP;
1004 }
1005
1006 if (erq->flags & IW_ENCODE_DISABLED)
1007 remove = 1;
1008
1009 idx = erq->flags & IW_ENCODE_INDEX;
1010 if (alg == ALG_AES_CMAC) {
1011 if (idx < NUM_DEFAULT_KEYS + 1 ||
1012 idx > NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS) {
1013 idx = -1;
1014 if (!sdata->default_mgmt_key)
1015 idx = 0;
1016 else for (i = NUM_DEFAULT_KEYS;
1017 i < NUM_DEFAULT_KEYS + NUM_DEFAULT_MGMT_KEYS;
1018 i++) {
1019 if (sdata->default_mgmt_key == sdata->keys[i])
1020 {
1021 idx = i;
1022 break;
1023 }
1024 }
1025 if (idx < 0)
1026 return -EINVAL;
1027 } else
1028 idx--;
1029 } else {
1030 if (idx < 1 || idx > 4) {
1031 idx = -1;
1032 if (!sdata->default_key)
1033 idx = 0;
1034 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1035 if (sdata->default_key == sdata->keys[i]) {
1036 idx = i;
1037 break;
1038 }
1039 }
1040 if (idx < 0)
1041 return -EINVAL;
1042 } else
1043 idx--;
1044 }
1045
1046 return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
1047 remove,
1048 ext->ext_flags &
1049 IW_ENCODE_EXT_SET_TX_KEY,
1050 ext->key, ext->key_len);
1051 }
1052
1053
1054 /* Structures to export the Wireless Handlers */
1055
1056 static const iw_handler ieee80211_handler[] =
1057 {
1058 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1059 (iw_handler) cfg80211_wext_giwname, /* SIOCGIWNAME */
1060 (iw_handler) NULL, /* SIOCSIWNWID */
1061 (iw_handler) NULL, /* SIOCGIWNWID */
1062 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1063 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1064 (iw_handler) cfg80211_wext_siwmode, /* SIOCSIWMODE */
1065 (iw_handler) cfg80211_wext_giwmode, /* SIOCGIWMODE */
1066 (iw_handler) NULL, /* SIOCSIWSENS */
1067 (iw_handler) NULL, /* SIOCGIWSENS */
1068 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1069 (iw_handler) cfg80211_wext_giwrange, /* SIOCGIWRANGE */
1070 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1071 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1072 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1073 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1074 (iw_handler) NULL, /* SIOCSIWSPY */
1075 (iw_handler) NULL, /* SIOCGIWSPY */
1076 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1077 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1078 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1079 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1080 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1081 (iw_handler) NULL, /* SIOCGIWAPLIST */
1082 (iw_handler) cfg80211_wext_siwscan, /* SIOCSIWSCAN */
1083 (iw_handler) cfg80211_wext_giwscan, /* SIOCGIWSCAN */
1084 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1085 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1086 (iw_handler) NULL, /* SIOCSIWNICKN */
1087 (iw_handler) NULL, /* SIOCGIWNICKN */
1088 (iw_handler) NULL, /* -- hole -- */
1089 (iw_handler) NULL, /* -- hole -- */
1090 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1091 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1092 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1093 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1094 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1095 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1096 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1097 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1098 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1099 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1100 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1101 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1102 (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */
1103 (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */
1104 (iw_handler) NULL, /* -- hole -- */
1105 (iw_handler) NULL, /* -- hole -- */
1106 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1107 (iw_handler) NULL, /* SIOCGIWGENIE */
1108 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1109 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1110 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1111 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1112 (iw_handler) NULL, /* SIOCSIWPMKSA */
1113 (iw_handler) NULL, /* -- hole -- */
1114 };
1115
1116 const struct iw_handler_def ieee80211_iw_handler_def =
1117 {
1118 .num_standard = ARRAY_SIZE(ieee80211_handler),
1119 .standard = (iw_handler *) ieee80211_handler,
1120 .get_wireless_stats = ieee80211_get_wireless_stats,
1121 };
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree