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Revert "HID: Invert HWHEEL mappings for some Logitech mice"
[wandboard.git] / net / mac80211 / wext.c
blob742f811ca416e5b16701ce2ae49f582ed32317a6
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 (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
41 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
42 sdata->dev->name, idx);
43 return -EINVAL;
44 }
45
46 if (remove) {
47 rcu_read_lock();
48
49 err = 0;
50
51 if (is_broadcast_ether_addr(sta_addr)) {
52 key = sdata->keys[idx];
53 } else {
54 sta = sta_info_get(local, sta_addr);
55 if (!sta) {
56 err = -ENOENT;
57 goto out_unlock;
58 }
59 key = sta->key;
60 }
61
62 ieee80211_key_free(key);
63 } else {
64 key = ieee80211_key_alloc(alg, idx, key_len, _key);
65 if (!key)
66 return -ENOMEM;
67
68 sta = NULL;
69 err = 0;
70
71 rcu_read_lock();
72
73 if (!is_broadcast_ether_addr(sta_addr)) {
74 set_tx_key = 0;
75 /*
76 * According to the standard, the key index of a
77 * pairwise key must be zero. However, some AP are
78 * broken when it comes to WEP key indices, so we
79 * work around this.
80 */
81 if (idx != 0 && alg != ALG_WEP) {
82 ieee80211_key_free(key);
83 err = -EINVAL;
84 goto out_unlock;
85 }
86
87 sta = sta_info_get(local, sta_addr);
88 if (!sta) {
89 ieee80211_key_free(key);
90 err = -ENOENT;
91 goto out_unlock;
92 }
93 }
94
95 if (alg == ALG_WEP &&
96 key_len != LEN_WEP40 && key_len != LEN_WEP104) {
97 ieee80211_key_free(key);
98 err = -EINVAL;
99 goto out_unlock;
100 }
101
102 ieee80211_key_link(key, sdata, sta);
103
104 if (set_tx_key || (!sta && !sdata->default_key && key))
105 ieee80211_set_default_key(sdata, idx);
106 }
107
108 out_unlock:
109 rcu_read_unlock();
110
111 return err;
112 }
113
114 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
115 struct iw_request_info *info,
116 struct iw_point *data, char *extra)
117 {
118 struct ieee80211_sub_if_data *sdata;
119
120 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
121
122 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
123 return -EOPNOTSUPP;
124
125 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
126 sdata->vif.type == NL80211_IFTYPE_ADHOC) {
127 int ret = ieee80211_sta_set_extra_ie(sdata, extra, data->length);
128 if (ret)
129 return ret;
130 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
131 ieee80211_sta_req_auth(sdata, &sdata->u.sta);
132 return 0;
133 }
134
135 return -EOPNOTSUPP;
136 }
137
138 static int ieee80211_ioctl_giwname(struct net_device *dev,
139 struct iw_request_info *info,
140 char *name, char *extra)
141 {
142 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
143 struct ieee80211_supported_band *sband;
144 u8 is_ht = 0, is_a = 0, is_b = 0, is_g = 0;
145
146
147 sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ];
148 if (sband) {
149 is_a = 1;
150 is_ht |= sband->ht_info.ht_supported;
151 }
152
153 sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ];
154 if (sband) {
155 int i;
156 /* Check for mandatory rates */
157 for (i = 0; i < sband->n_bitrates; i++) {
158 if (sband->bitrates[i].bitrate == 10)
159 is_b = 1;
160 if (sband->bitrates[i].bitrate == 60)
161 is_g = 1;
162 }
163 is_ht |= sband->ht_info.ht_supported;
164 }
165
166 strcpy(name, "IEEE 802.11");
167 if (is_a)
168 strcat(name, "a");
169 if (is_b)
170 strcat(name, "b");
171 if (is_g)
172 strcat(name, "g");
173 if (is_ht)
174 strcat(name, "n");
175
176 return 0;
177 }
178
179
180 static int ieee80211_ioctl_giwrange(struct net_device *dev,
181 struct iw_request_info *info,
182 struct iw_point *data, char *extra)
183 {
184 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
185 struct iw_range *range = (struct iw_range *) extra;
186 enum ieee80211_band band;
187 int c = 0;
188
189 data->length = sizeof(struct iw_range);
190 memset(range, 0, sizeof(struct iw_range));
191
192 range->we_version_compiled = WIRELESS_EXT;
193 range->we_version_source = 21;
194 range->retry_capa = IW_RETRY_LIMIT;
195 range->retry_flags = IW_RETRY_LIMIT;
196 range->min_retry = 0;
197 range->max_retry = 255;
198 range->min_rts = 0;
199 range->max_rts = 2347;
200 range->min_frag = 256;
201 range->max_frag = 2346;
202
203 range->encoding_size[0] = 5;
204 range->encoding_size[1] = 13;
205 range->num_encoding_sizes = 2;
206 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
207
208 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC ||
209 local->hw.flags & IEEE80211_HW_SIGNAL_DB)
210 range->max_qual.level = local->hw.max_signal;
211 else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
212 range->max_qual.level = -110;
213 else
214 range->max_qual.level = 0;
215
216 if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
217 range->max_qual.noise = -110;
218 else
219 range->max_qual.noise = 0;
220
221 range->max_qual.qual = 100;
222 range->max_qual.updated = local->wstats_flags;
223
224 range->avg_qual.qual = 50;
225 /* not always true but better than nothing */
226 range->avg_qual.level = range->max_qual.level / 2;
227 range->avg_qual.noise = range->max_qual.noise / 2;
228 range->avg_qual.updated = local->wstats_flags;
229
230 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
231 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
232
233
234 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
235 int i;
236 struct ieee80211_supported_band *sband;
237
238 sband = local->hw.wiphy->bands[band];
239
240 if (!sband)
241 continue;
242
243 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
244 struct ieee80211_channel *chan = &sband->channels[i];
245
246 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
247 range->freq[c].i =
248 ieee80211_frequency_to_channel(
249 chan->center_freq);
250 range->freq[c].m = chan->center_freq;
251 range->freq[c].e = 6;
252 c++;
253 }
254 }
255 }
256 range->num_channels = c;
257 range->num_frequency = c;
258
259 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
260 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
261 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
262
263 range->scan_capa |= IW_SCAN_CAPA_ESSID;
264
265 return 0;
266 }
267
268
269 static int ieee80211_ioctl_siwmode(struct net_device *dev,
270 struct iw_request_info *info,
271 __u32 *mode, char *extra)
272 {
273 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
274 int type;
275
276 if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
277 return -EOPNOTSUPP;
278
279 switch (*mode) {
280 case IW_MODE_INFRA:
281 type = NL80211_IFTYPE_STATION;
282 break;
283 case IW_MODE_ADHOC:
284 type = NL80211_IFTYPE_ADHOC;
285 break;
286 case IW_MODE_REPEAT:
287 type = NL80211_IFTYPE_WDS;
288 break;
289 case IW_MODE_MONITOR:
290 type = NL80211_IFTYPE_MONITOR;
291 break;
292 default:
293 return -EINVAL;
294 }
295
296 return ieee80211_if_change_type(sdata, type);
297 }
298
299
300 static int ieee80211_ioctl_giwmode(struct net_device *dev,
301 struct iw_request_info *info,
302 __u32 *mode, char *extra)
303 {
304 struct ieee80211_sub_if_data *sdata;
305
306 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
307 switch (sdata->vif.type) {
308 case NL80211_IFTYPE_AP:
309 *mode = IW_MODE_MASTER;
310 break;
311 case NL80211_IFTYPE_STATION:
312 *mode = IW_MODE_INFRA;
313 break;
314 case NL80211_IFTYPE_ADHOC:
315 *mode = IW_MODE_ADHOC;
316 break;
317 case NL80211_IFTYPE_MONITOR:
318 *mode = IW_MODE_MONITOR;
319 break;
320 case NL80211_IFTYPE_WDS:
321 *mode = IW_MODE_REPEAT;
322 break;
323 case NL80211_IFTYPE_AP_VLAN:
324 *mode = IW_MODE_SECOND; /* FIXME */
325 break;
326 default:
327 *mode = IW_MODE_AUTO;
328 break;
329 }
330 return 0;
331 }
332
333 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
334 struct iw_request_info *info,
335 struct iw_freq *freq, char *extra)
336 {
337 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
338
339 if (sdata->vif.type == NL80211_IFTYPE_STATION)
340 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
341
342 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
343 if (freq->e == 0) {
344 if (freq->m < 0) {
345 if (sdata->vif.type == NL80211_IFTYPE_STATION)
346 sdata->u.sta.flags |=
347 IEEE80211_STA_AUTO_CHANNEL_SEL;
348 return 0;
349 } else
350 return ieee80211_set_freq(sdata,
351 ieee80211_channel_to_frequency(freq->m));
352 } else {
353 int i, div = 1000000;
354 for (i = 0; i < freq->e; i++)
355 div /= 10;
356 if (div > 0)
357 return ieee80211_set_freq(sdata, freq->m / div);
358 else
359 return -EINVAL;
360 }
361 }
362
363
364 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
365 struct iw_request_info *info,
366 struct iw_freq *freq, char *extra)
367 {
368 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
369
370 freq->m = local->hw.conf.channel->center_freq;
371 freq->e = 6;
372
373 return 0;
374 }
375
376
377 static int ieee80211_ioctl_siwessid(struct net_device *dev,
378 struct iw_request_info *info,
379 struct iw_point *data, char *ssid)
380 {
381 struct ieee80211_sub_if_data *sdata;
382 size_t len = data->length;
383
384 /* iwconfig uses nul termination in SSID.. */
385 if (len > 0 && ssid[len - 1] == '\0')
386 len--;
387
388 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
389 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
390 sdata->vif.type == NL80211_IFTYPE_ADHOC) {
391 int ret;
392 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
393 if (len > IEEE80211_MAX_SSID_LEN)
394 return -EINVAL;
395 memcpy(sdata->u.sta.ssid, ssid, len);
396 sdata->u.sta.ssid_len = len;
397 return 0;
398 }
399 if (data->flags)
400 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
401 else
402 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
403 ret = ieee80211_sta_set_ssid(sdata, ssid, len);
404 if (ret)
405 return ret;
406 ieee80211_sta_req_auth(sdata, &sdata->u.sta);
407 return 0;
408 }
409
410 if (sdata->vif.type == NL80211_IFTYPE_AP) {
411 memcpy(sdata->u.ap.ssid, ssid, len);
412 memset(sdata->u.ap.ssid + len, 0,
413 IEEE80211_MAX_SSID_LEN - len);
414 sdata->u.ap.ssid_len = len;
415 return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
416 }
417 return -EOPNOTSUPP;
418 }
419
420
421 static int ieee80211_ioctl_giwessid(struct net_device *dev,
422 struct iw_request_info *info,
423 struct iw_point *data, char *ssid)
424 {
425 size_t len;
426
427 struct ieee80211_sub_if_data *sdata;
428 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
429 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
430 sdata->vif.type == NL80211_IFTYPE_ADHOC) {
431 int res = ieee80211_sta_get_ssid(sdata, ssid, &len);
432 if (res == 0) {
433 data->length = len;
434 data->flags = 1;
435 } else
436 data->flags = 0;
437 return res;
438 }
439
440 if (sdata->vif.type == NL80211_IFTYPE_AP) {
441 len = sdata->u.ap.ssid_len;
442 if (len > IW_ESSID_MAX_SIZE)
443 len = IW_ESSID_MAX_SIZE;
444 memcpy(ssid, sdata->u.ap.ssid, len);
445 data->length = len;
446 data->flags = 1;
447 return 0;
448 }
449 return -EOPNOTSUPP;
450 }
451
452
453 static int ieee80211_ioctl_siwap(struct net_device *dev,
454 struct iw_request_info *info,
455 struct sockaddr *ap_addr, char *extra)
456 {
457 struct ieee80211_sub_if_data *sdata;
458
459 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
460 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
461 sdata->vif.type == NL80211_IFTYPE_ADHOC) {
462 int ret;
463 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
464 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
465 ETH_ALEN);
466 return 0;
467 }
468 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
469 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
470 IEEE80211_STA_AUTO_CHANNEL_SEL;
471 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
472 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
473 else
474 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
475 ret = ieee80211_sta_set_bssid(sdata, (u8 *) &ap_addr->sa_data);
476 if (ret)
477 return ret;
478 ieee80211_sta_req_auth(sdata, &sdata->u.sta);
479 return 0;
480 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
481 /*
482 * If it is necessary to update the WDS peer address
483 * while the interface is running, then we need to do
484 * more work here, namely if it is running we need to
485 * add a new and remove the old STA entry, this is
486 * normally handled by _open() and _stop().
487 */
488 if (netif_running(dev))
489 return -EBUSY;
490
491 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
492 ETH_ALEN);
493
494 return 0;
495 }
496
497 return -EOPNOTSUPP;
498 }
499
500
501 static int ieee80211_ioctl_giwap(struct net_device *dev,
502 struct iw_request_info *info,
503 struct sockaddr *ap_addr, char *extra)
504 {
505 struct ieee80211_sub_if_data *sdata;
506
507 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
508 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
509 sdata->vif.type == NL80211_IFTYPE_ADHOC) {
510 if (sdata->u.sta.state == IEEE80211_STA_MLME_ASSOCIATED ||
511 sdata->u.sta.state == IEEE80211_STA_MLME_IBSS_JOINED) {
512 ap_addr->sa_family = ARPHRD_ETHER;
513 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
514 return 0;
515 } else {
516 memset(&ap_addr->sa_data, 0, ETH_ALEN);
517 return 0;
518 }
519 } else if (sdata->vif.type == NL80211_IFTYPE_WDS) {
520 ap_addr->sa_family = ARPHRD_ETHER;
521 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
522 return 0;
523 }
524
525 return -EOPNOTSUPP;
526 }
527
528
529 static int ieee80211_ioctl_siwscan(struct net_device *dev,
530 struct iw_request_info *info,
531 union iwreq_data *wrqu, char *extra)
532 {
533 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
534 struct iw_scan_req *req = NULL;
535 u8 *ssid = NULL;
536 size_t ssid_len = 0;
537
538 if (!netif_running(dev))
539 return -ENETDOWN;
540
541 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
542 sdata->vif.type != NL80211_IFTYPE_ADHOC &&
543 sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
544 sdata->vif.type != NL80211_IFTYPE_AP)
545 return -EOPNOTSUPP;
546
547 /* if SSID was specified explicitly then use that */
548 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
549 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
550 req = (struct iw_scan_req *)extra;
551 ssid = req->essid;
552 ssid_len = req->essid_len;
553 }
554
555 return ieee80211_request_scan(sdata, ssid, ssid_len);
556 }
557
558
559 static int ieee80211_ioctl_giwscan(struct net_device *dev,
560 struct iw_request_info *info,
561 struct iw_point *data, char *extra)
562 {
563 int res;
564 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
565 struct ieee80211_sub_if_data *sdata;
566
567 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
568
569 if (local->sw_scanning || local->hw_scanning)
570 return -EAGAIN;
571
572 res = ieee80211_scan_results(local, info, extra, data->length);
573 if (res >= 0) {
574 data->length = res;
575 return 0;
576 }
577 data->length = 0;
578 return res;
579 }
580
581
582 static int ieee80211_ioctl_siwrate(struct net_device *dev,
583 struct iw_request_info *info,
584 struct iw_param *rate, char *extra)
585 {
586 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
587 int i, err = -EINVAL;
588 u32 target_rate = rate->value / 100000;
589 struct ieee80211_sub_if_data *sdata;
590 struct ieee80211_supported_band *sband;
591
592 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
593
594 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
595
596 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
597 * target_rate = X, rate->fixed = 1 means only rate X
598 * target_rate = X, rate->fixed = 0 means all rates <= X */
599 sdata->max_ratectrl_rateidx = -1;
600 sdata->force_unicast_rateidx = -1;
601 if (rate->value < 0)
602 return 0;
603
604 for (i=0; i< sband->n_bitrates; i++) {
605 struct ieee80211_rate *brate = &sband->bitrates[i];
606 int this_rate = brate->bitrate;
607
608 if (target_rate == this_rate) {
609 sdata->max_ratectrl_rateidx = i;
610 if (rate->fixed)
611 sdata->force_unicast_rateidx = i;
612 err = 0;
613 break;
614 }
615 }
616 return err;
617 }
618
619 static int ieee80211_ioctl_giwrate(struct net_device *dev,
620 struct iw_request_info *info,
621 struct iw_param *rate, char *extra)
622 {
623 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
624 struct sta_info *sta;
625 struct ieee80211_sub_if_data *sdata;
626 struct ieee80211_supported_band *sband;
627
628 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
629
630 if (sdata->vif.type != NL80211_IFTYPE_STATION)
631 return -EOPNOTSUPP;
632
633 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
634
635 rcu_read_lock();
636
637 sta = sta_info_get(local, sdata->u.sta.bssid);
638
639 if (sta && sta->last_txrate_idx < sband->n_bitrates)
640 rate->value = sband->bitrates[sta->last_txrate_idx].bitrate;
641 else
642 rate->value = 0;
643
644 rcu_read_unlock();
645
646 if (!sta)
647 return -ENODEV;
648
649 rate->value *= 100000;
650
651 return 0;
652 }
653
654 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
655 struct iw_request_info *info,
656 union iwreq_data *data, char *extra)
657 {
658 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
659 bool need_reconfig = 0;
660 int new_power_level;
661
662 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
663 return -EINVAL;
664 if (data->txpower.flags & IW_TXPOW_RANGE)
665 return -EINVAL;
666
667 if (data->txpower.fixed) {
668 new_power_level = data->txpower.value;
669 } else {
670 /*
671 * Automatic power level. Use maximum power for the current
672 * channel. Should be part of rate control.
673 */
674 struct ieee80211_channel* chan = local->hw.conf.channel;
675 if (!chan)
676 return -EINVAL;
677
678 new_power_level = chan->max_power;
679 }
680
681 if (local->hw.conf.power_level != new_power_level) {
682 local->hw.conf.power_level = new_power_level;
683 need_reconfig = 1;
684 }
685
686 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
687 local->hw.conf.radio_enabled = !(data->txpower.disabled);
688 need_reconfig = 1;
689 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
690 }
691
692 if (need_reconfig) {
693 ieee80211_hw_config(local);
694 /* The return value of hw_config is not of big interest here,
695 * as it doesn't say that it failed because of _this_ config
696 * change or something else. Ignore it. */
697 }
698
699 return 0;
700 }
701
702 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
703 struct iw_request_info *info,
704 union iwreq_data *data, char *extra)
705 {
706 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
707
708 data->txpower.fixed = 1;
709 data->txpower.disabled = !(local->hw.conf.radio_enabled);
710 data->txpower.value = local->hw.conf.power_level;
711 data->txpower.flags = IW_TXPOW_DBM;
712
713 return 0;
714 }
715
716 static int ieee80211_ioctl_siwrts(struct net_device *dev,
717 struct iw_request_info *info,
718 struct iw_param *rts, char *extra)
719 {
720 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
721
722 if (rts->disabled)
723 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
724 else if (!rts->fixed)
725 /* if the rts value is not fixed, then take default */
726 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
727 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
728 return -EINVAL;
729 else
730 local->rts_threshold = rts->value;
731
732 /* If the wlan card performs RTS/CTS in hardware/firmware,
733 * configure it here */
734
735 if (local->ops->set_rts_threshold)
736 local->ops->set_rts_threshold(local_to_hw(local),
737 local->rts_threshold);
738
739 return 0;
740 }
741
742 static int ieee80211_ioctl_giwrts(struct net_device *dev,
743 struct iw_request_info *info,
744 struct iw_param *rts, char *extra)
745 {
746 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
747
748 rts->value = local->rts_threshold;
749 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
750 rts->fixed = 1;
751
752 return 0;
753 }
754
755
756 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
757 struct iw_request_info *info,
758 struct iw_param *frag, char *extra)
759 {
760 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
761
762 if (frag->disabled)
763 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
764 else if (!frag->fixed)
765 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
766 else if (frag->value < 256 ||
767 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
768 return -EINVAL;
769 else {
770 /* Fragment length must be even, so strip LSB. */
771 local->fragmentation_threshold = frag->value & ~0x1;
772 }
773
774 /* If the wlan card performs fragmentation in hardware/firmware,
775 * configure it here */
776
777 if (local->ops->set_frag_threshold)
778 return local->ops->set_frag_threshold(
779 local_to_hw(local),
780 local->fragmentation_threshold);
781
782 return 0;
783 }
784
785 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
786 struct iw_request_info *info,
787 struct iw_param *frag, char *extra)
788 {
789 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
790
791 frag->value = local->fragmentation_threshold;
792 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
793 frag->fixed = 1;
794
795 return 0;
796 }
797
798
799 static int ieee80211_ioctl_siwretry(struct net_device *dev,
800 struct iw_request_info *info,
801 struct iw_param *retry, char *extra)
802 {
803 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
804
805 if (retry->disabled ||
806 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
807 return -EINVAL;
808
809 if (retry->flags & IW_RETRY_MAX)
810 local->long_retry_limit = retry->value;
811 else if (retry->flags & IW_RETRY_MIN)
812 local->short_retry_limit = retry->value;
813 else {
814 local->long_retry_limit = retry->value;
815 local->short_retry_limit = retry->value;
816 }
817
818 if (local->ops->set_retry_limit) {
819 return local->ops->set_retry_limit(
820 local_to_hw(local),
821 local->short_retry_limit,
822 local->long_retry_limit);
823 }
824
825 return 0;
826 }
827
828
829 static int ieee80211_ioctl_giwretry(struct net_device *dev,
830 struct iw_request_info *info,
831 struct iw_param *retry, char *extra)
832 {
833 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
834
835 retry->disabled = 0;
836 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
837 /* first return min value, iwconfig will ask max value
838 * later if needed */
839 retry->flags |= IW_RETRY_LIMIT;
840 retry->value = local->short_retry_limit;
841 if (local->long_retry_limit != local->short_retry_limit)
842 retry->flags |= IW_RETRY_MIN;
843 return 0;
844 }
845 if (retry->flags & IW_RETRY_MAX) {
846 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
847 retry->value = local->long_retry_limit;
848 }
849
850 return 0;
851 }
852
853 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
854 struct iw_request_info *info,
855 struct iw_point *data, char *extra)
856 {
857 struct ieee80211_sub_if_data *sdata;
858 struct iw_mlme *mlme = (struct iw_mlme *) extra;
859
860 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
861 if (sdata->vif.type != NL80211_IFTYPE_STATION &&
862 sdata->vif.type != NL80211_IFTYPE_ADHOC)
863 return -EINVAL;
864
865 switch (mlme->cmd) {
866 case IW_MLME_DEAUTH:
867 /* TODO: mlme->addr.sa_data */
868 return ieee80211_sta_deauthenticate(sdata, mlme->reason_code);
869 case IW_MLME_DISASSOC:
870 /* TODO: mlme->addr.sa_data */
871 return ieee80211_sta_disassociate(sdata, mlme->reason_code);
872 default:
873 return -EOPNOTSUPP;
874 }
875 }
876
877
878 static int ieee80211_ioctl_siwencode(struct net_device *dev,
879 struct iw_request_info *info,
880 struct iw_point *erq, char *keybuf)
881 {
882 struct ieee80211_sub_if_data *sdata;
883 int idx, i, alg = ALG_WEP;
884 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
885 int remove = 0;
886
887 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
888
889 idx = erq->flags & IW_ENCODE_INDEX;
890 if (idx == 0) {
891 if (sdata->default_key)
892 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
893 if (sdata->default_key == sdata->keys[i]) {
894 idx = i;
895 break;
896 }
897 }
898 } else if (idx < 1 || idx > 4)
899 return -EINVAL;
900 else
901 idx--;
902
903 if (erq->flags & IW_ENCODE_DISABLED)
904 remove = 1;
905 else if (erq->length == 0) {
906 /* No key data - just set the default TX key index */
907 ieee80211_set_default_key(sdata, idx);
908 return 0;
909 }
910
911 return ieee80211_set_encryption(
912 sdata, bcaddr,
913 idx, alg, remove,
914 !sdata->default_key,
915 keybuf, erq->length);
916 }
917
918
919 static int ieee80211_ioctl_giwencode(struct net_device *dev,
920 struct iw_request_info *info,
921 struct iw_point *erq, char *key)
922 {
923 struct ieee80211_sub_if_data *sdata;
924 int idx, i;
925
926 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
927
928 idx = erq->flags & IW_ENCODE_INDEX;
929 if (idx < 1 || idx > 4) {
930 idx = -1;
931 if (!sdata->default_key)
932 idx = 0;
933 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
934 if (sdata->default_key == sdata->keys[i]) {
935 idx = i;
936 break;
937 }
938 }
939 if (idx < 0)
940 return -EINVAL;
941 } else
942 idx--;
943
944 erq->flags = idx + 1;
945
946 if (!sdata->keys[idx]) {
947 erq->length = 0;
948 erq->flags |= IW_ENCODE_DISABLED;
949 return 0;
950 }
951
952 memcpy(key, sdata->keys[idx]->conf.key,
953 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
954 erq->length = sdata->keys[idx]->conf.keylen;
955 erq->flags |= IW_ENCODE_ENABLED;
956
957 if (sdata->vif.type == NL80211_IFTYPE_STATION) {
958 struct ieee80211_if_sta *ifsta = &sdata->u.sta;
959 switch (ifsta->auth_alg) {
960 case WLAN_AUTH_OPEN:
961 case WLAN_AUTH_LEAP:
962 erq->flags |= IW_ENCODE_OPEN;
963 break;
964 case WLAN_AUTH_SHARED_KEY:
965 erq->flags |= IW_ENCODE_RESTRICTED;
966 break;
967 }
968 }
969
970 return 0;
971 }
972
973 static int ieee80211_ioctl_siwpower(struct net_device *dev,
974 struct iw_request_info *info,
975 struct iw_param *wrq,
976 char *extra)
977 {
978 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
979 struct ieee80211_conf *conf = &local->hw.conf;
980
981 if (wrq->disabled) {
982 conf->flags &= ~IEEE80211_CONF_PS;
983 return ieee80211_hw_config(local);
984 }
985
986 switch (wrq->flags & IW_POWER_MODE) {
987 case IW_POWER_ON: /* If not specified */
988 case IW_POWER_MODE: /* If set all mask */
989 case IW_POWER_ALL_R: /* If explicitely state all */
990 conf->flags |= IEEE80211_CONF_PS;
991 break;
992 default: /* Otherwise we don't support it */
993 return -EINVAL;
994 }
995
996 return ieee80211_hw_config(local);
997 }
998
999 static int ieee80211_ioctl_giwpower(struct net_device *dev,
1000 struct iw_request_info *info,
1001 union iwreq_data *wrqu,
1002 char *extra)
1003 {
1004 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1005 struct ieee80211_conf *conf = &local->hw.conf;
1006
1007 wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS);
1008
1009 return 0;
1010 }
1011
1012 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1013 struct iw_request_info *info,
1014 struct iw_param *data, char *extra)
1015 {
1016 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1017 int ret = 0;
1018
1019 switch (data->flags & IW_AUTH_INDEX) {
1020 case IW_AUTH_WPA_VERSION:
1021 case IW_AUTH_CIPHER_PAIRWISE:
1022 case IW_AUTH_CIPHER_GROUP:
1023 case IW_AUTH_WPA_ENABLED:
1024 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1025 case IW_AUTH_KEY_MGMT:
1026 break;
1027 case IW_AUTH_DROP_UNENCRYPTED:
1028 sdata->drop_unencrypted = !!data->value;
1029 break;
1030 case IW_AUTH_PRIVACY_INVOKED:
1031 if (sdata->vif.type != NL80211_IFTYPE_STATION)
1032 ret = -EINVAL;
1033 else {
1034 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
1035 /*
1036 * Privacy invoked by wpa_supplicant, store the
1037 * value and allow associating to a protected
1038 * network without having a key up front.
1039 */
1040 if (data->value)
1041 sdata->u.sta.flags |=
1042 IEEE80211_STA_PRIVACY_INVOKED;
1043 }
1044 break;
1045 case IW_AUTH_80211_AUTH_ALG:
1046 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
1047 sdata->vif.type == NL80211_IFTYPE_ADHOC)
1048 sdata->u.sta.auth_algs = data->value;
1049 else
1050 ret = -EOPNOTSUPP;
1051 break;
1052 default:
1053 ret = -EOPNOTSUPP;
1054 break;
1055 }
1056 return ret;
1057 }
1058
1059 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1060 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1061 {
1062 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1063 struct iw_statistics *wstats = &local->wstats;
1064 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1065 struct sta_info *sta = NULL;
1066
1067 rcu_read_lock();
1068
1069 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
1070 sdata->vif.type == NL80211_IFTYPE_ADHOC)
1071 sta = sta_info_get(local, sdata->u.sta.bssid);
1072 if (!sta) {
1073 wstats->discard.fragment = 0;
1074 wstats->discard.misc = 0;
1075 wstats->qual.qual = 0;
1076 wstats->qual.level = 0;
1077 wstats->qual.noise = 0;
1078 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1079 } else {
1080 wstats->qual.level = sta->last_signal;
1081 wstats->qual.qual = sta->last_qual;
1082 wstats->qual.noise = sta->last_noise;
1083 wstats->qual.updated = local->wstats_flags;
1084 }
1085
1086 rcu_read_unlock();
1087
1088 return wstats;
1089 }
1090
1091 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1092 struct iw_request_info *info,
1093 struct iw_param *data, char *extra)
1094 {
1095 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1096 int ret = 0;
1097
1098 switch (data->flags & IW_AUTH_INDEX) {
1099 case IW_AUTH_80211_AUTH_ALG:
1100 if (sdata->vif.type == NL80211_IFTYPE_STATION ||
1101 sdata->vif.type == NL80211_IFTYPE_ADHOC)
1102 data->value = sdata->u.sta.auth_algs;
1103 else
1104 ret = -EOPNOTSUPP;
1105 break;
1106 default:
1107 ret = -EOPNOTSUPP;
1108 break;
1109 }
1110 return ret;
1111 }
1112
1113
1114 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1115 struct iw_request_info *info,
1116 struct iw_point *erq, char *extra)
1117 {
1118 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1119 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1120 int uninitialized_var(alg), idx, i, remove = 0;
1121
1122 switch (ext->alg) {
1123 case IW_ENCODE_ALG_NONE:
1124 remove = 1;
1125 break;
1126 case IW_ENCODE_ALG_WEP:
1127 alg = ALG_WEP;
1128 break;
1129 case IW_ENCODE_ALG_TKIP:
1130 alg = ALG_TKIP;
1131 break;
1132 case IW_ENCODE_ALG_CCMP:
1133 alg = ALG_CCMP;
1134 break;
1135 default:
1136 return -EOPNOTSUPP;
1137 }
1138
1139 if (erq->flags & IW_ENCODE_DISABLED)
1140 remove = 1;
1141
1142 idx = erq->flags & IW_ENCODE_INDEX;
1143 if (idx < 1 || idx > 4) {
1144 idx = -1;
1145 if (!sdata->default_key)
1146 idx = 0;
1147 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1148 if (sdata->default_key == sdata->keys[i]) {
1149 idx = i;
1150 break;
1151 }
1152 }
1153 if (idx < 0)
1154 return -EINVAL;
1155 } else
1156 idx--;
1157
1158 return ieee80211_set_encryption(sdata, ext->addr.sa_data, idx, alg,
1159 remove,
1160 ext->ext_flags &
1161 IW_ENCODE_EXT_SET_TX_KEY,
1162 ext->key, ext->key_len);
1163 }
1164
1165
1166 /* Structures to export the Wireless Handlers */
1167
1168 static const iw_handler ieee80211_handler[] =
1169 {
1170 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1171 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1172 (iw_handler) NULL, /* SIOCSIWNWID */
1173 (iw_handler) NULL, /* SIOCGIWNWID */
1174 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1175 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1176 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1177 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1178 (iw_handler) NULL, /* SIOCSIWSENS */
1179 (iw_handler) NULL, /* SIOCGIWSENS */
1180 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1181 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1182 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1183 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1184 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1185 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1186 (iw_handler) NULL, /* SIOCSIWSPY */
1187 (iw_handler) NULL, /* SIOCGIWSPY */
1188 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1189 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1190 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1191 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1192 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1193 (iw_handler) NULL, /* SIOCGIWAPLIST */
1194 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1195 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1196 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1197 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1198 (iw_handler) NULL, /* SIOCSIWNICKN */
1199 (iw_handler) NULL, /* SIOCGIWNICKN */
1200 (iw_handler) NULL, /* -- hole -- */
1201 (iw_handler) NULL, /* -- hole -- */
1202 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1203 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1204 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1205 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1206 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1207 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1208 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1209 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1210 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1211 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1212 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1213 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1214 (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */
1215 (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */
1216 (iw_handler) NULL, /* -- hole -- */
1217 (iw_handler) NULL, /* -- hole -- */
1218 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1219 (iw_handler) NULL, /* SIOCGIWGENIE */
1220 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1221 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1222 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1223 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1224 (iw_handler) NULL, /* SIOCSIWPMKSA */
1225 (iw_handler) NULL, /* -- hole -- */
1226 };
1227
1228 const struct iw_handler_def ieee80211_iw_handler_def =
1229 {
1230 .num_standard = ARRAY_SIZE(ieee80211_handler),
1231 .standard = (iw_handler *) ieee80211_handler,
1232 .get_wireless_stats = ieee80211_get_wireless_stats,
1233 };
WandBoard kernel