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ia64/kvm: compilation fix. export account_system_vtime.
[pv_ops_mirror.git] / net / mac80211 / wext.c
blob76e1de1dc735d959e62527132bad490a3e005513
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 net_device *dev, 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 = wdev_priv(dev->ieee80211_ptr);
36 struct sta_info *sta;
37 struct ieee80211_key *key;
38 struct ieee80211_sub_if_data *sdata;
39 int err;
40
41 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
42
43 if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
44 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
45 dev->name, idx);
46 return -EINVAL;
47 }
48
49 if (remove) {
50 rcu_read_lock();
51
52 err = 0;
53
54 if (is_broadcast_ether_addr(sta_addr)) {
55 key = sdata->keys[idx];
56 } else {
57 sta = sta_info_get(local, sta_addr);
58 if (!sta) {
59 err = -ENOENT;
60 goto out_unlock;
61 }
62 key = sta->key;
63 }
64
65 ieee80211_key_free(key);
66 } else {
67 key = ieee80211_key_alloc(alg, idx, key_len, _key);
68 if (!key)
69 return -ENOMEM;
70
71 sta = NULL;
72 err = 0;
73
74 rcu_read_lock();
75
76 if (!is_broadcast_ether_addr(sta_addr)) {
77 set_tx_key = 0;
78 /*
79 * According to the standard, the key index of a
80 * pairwise key must be zero. However, some AP are
81 * broken when it comes to WEP key indices, so we
82 * work around this.
83 */
84 if (idx != 0 && alg != ALG_WEP) {
85 ieee80211_key_free(key);
86 err = -EINVAL;
87 goto out_unlock;
88 }
89
90 sta = sta_info_get(local, sta_addr);
91 if (!sta) {
92 ieee80211_key_free(key);
93 err = -ENOENT;
94 goto out_unlock;
95 }
96 }
97
98 ieee80211_key_link(key, sdata, sta);
99
100 if (set_tx_key || (!sta && !sdata->default_key && key))
101 ieee80211_set_default_key(sdata, idx);
102 }
103
104 out_unlock:
105 rcu_read_unlock();
106
107 return err;
108 }
109
110 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
111 struct iw_request_info *info,
112 struct iw_point *data, char *extra)
113 {
114 struct ieee80211_sub_if_data *sdata;
115
116 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
117
118 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
119 return -EOPNOTSUPP;
120
121 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
122 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
123 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
124 if (ret)
125 return ret;
126 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
127 ieee80211_sta_req_auth(dev, &sdata->u.sta);
128 return 0;
129 }
130
131 return -EOPNOTSUPP;
132 }
133
134 static int ieee80211_ioctl_giwname(struct net_device *dev,
135 struct iw_request_info *info,
136 char *name, char *extra)
137 {
138 strcpy(name, "IEEE 802.11");
139
140 return 0;
141 }
142
143
144 static int ieee80211_ioctl_giwrange(struct net_device *dev,
145 struct iw_request_info *info,
146 struct iw_point *data, char *extra)
147 {
148 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
149 struct iw_range *range = (struct iw_range *) extra;
150 enum ieee80211_band band;
151 int c = 0;
152
153 data->length = sizeof(struct iw_range);
154 memset(range, 0, sizeof(struct iw_range));
155
156 range->we_version_compiled = WIRELESS_EXT;
157 range->we_version_source = 21;
158 range->retry_capa = IW_RETRY_LIMIT;
159 range->retry_flags = IW_RETRY_LIMIT;
160 range->min_retry = 0;
161 range->max_retry = 255;
162 range->min_rts = 0;
163 range->max_rts = 2347;
164 range->min_frag = 256;
165 range->max_frag = 2346;
166
167 range->encoding_size[0] = 5;
168 range->encoding_size[1] = 13;
169 range->num_encoding_sizes = 2;
170 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
171
172 range->max_qual.qual = local->hw.max_signal;
173 range->max_qual.level = local->hw.max_rssi;
174 range->max_qual.noise = local->hw.max_noise;
175 range->max_qual.updated = local->wstats_flags;
176
177 range->avg_qual.qual = local->hw.max_signal/2;
178 range->avg_qual.level = 0;
179 range->avg_qual.noise = 0;
180 range->avg_qual.updated = local->wstats_flags;
181
182 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
183 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
184
185
186 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
187 int i;
188 struct ieee80211_supported_band *sband;
189
190 sband = local->hw.wiphy->bands[band];
191
192 if (!sband)
193 continue;
194
195 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
196 struct ieee80211_channel *chan = &sband->channels[i];
197
198 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
199 range->freq[c].i =
200 ieee80211_frequency_to_channel(
201 chan->center_freq);
202 range->freq[c].m = chan->center_freq;
203 range->freq[c].e = 6;
204 c++;
205 }
206 }
207 }
208 range->num_channels = c;
209 range->num_frequency = c;
210
211 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
212 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
213 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
214 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
215
216 range->scan_capa |= IW_SCAN_CAPA_ESSID;
217
218 return 0;
219 }
220
221
222 static int ieee80211_ioctl_siwmode(struct net_device *dev,
223 struct iw_request_info *info,
224 __u32 *mode, char *extra)
225 {
226 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
227 int type;
228
229 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
230 return -EOPNOTSUPP;
231
232 switch (*mode) {
233 case IW_MODE_INFRA:
234 type = IEEE80211_IF_TYPE_STA;
235 break;
236 case IW_MODE_ADHOC:
237 type = IEEE80211_IF_TYPE_IBSS;
238 break;
239 case IW_MODE_REPEAT:
240 type = IEEE80211_IF_TYPE_WDS;
241 break;
242 case IW_MODE_MONITOR:
243 type = IEEE80211_IF_TYPE_MNTR;
244 break;
245 default:
246 return -EINVAL;
247 }
248
249 if (type == sdata->vif.type)
250 return 0;
251 if (netif_running(dev))
252 return -EBUSY;
253
254 ieee80211_if_reinit(dev);
255 ieee80211_if_set_type(dev, type);
256
257 return 0;
258 }
259
260
261 static int ieee80211_ioctl_giwmode(struct net_device *dev,
262 struct iw_request_info *info,
263 __u32 *mode, char *extra)
264 {
265 struct ieee80211_sub_if_data *sdata;
266
267 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
268 switch (sdata->vif.type) {
269 case IEEE80211_IF_TYPE_AP:
270 *mode = IW_MODE_MASTER;
271 break;
272 case IEEE80211_IF_TYPE_STA:
273 *mode = IW_MODE_INFRA;
274 break;
275 case IEEE80211_IF_TYPE_IBSS:
276 *mode = IW_MODE_ADHOC;
277 break;
278 case IEEE80211_IF_TYPE_MNTR:
279 *mode = IW_MODE_MONITOR;
280 break;
281 case IEEE80211_IF_TYPE_WDS:
282 *mode = IW_MODE_REPEAT;
283 break;
284 case IEEE80211_IF_TYPE_VLAN:
285 *mode = IW_MODE_SECOND; /* FIXME */
286 break;
287 default:
288 *mode = IW_MODE_AUTO;
289 break;
290 }
291 return 0;
292 }
293
294 int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
295 {
296 int ret = -EINVAL;
297 struct ieee80211_channel *chan;
298
299 chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
300
301 if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
302 local->oper_channel = chan;
303
304 if (local->sta_sw_scanning || local->sta_hw_scanning)
305 ret = 0;
306 else
307 ret = ieee80211_hw_config(local);
308
309 rate_control_clear(local);
310 }
311
312 return ret;
313 }
314
315 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
316 struct iw_request_info *info,
317 struct iw_freq *freq, char *extra)
318 {
319 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
320 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
321
322 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
323 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
324
325 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
326 if (freq->e == 0) {
327 if (freq->m < 0) {
328 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
329 sdata->u.sta.flags |=
330 IEEE80211_STA_AUTO_CHANNEL_SEL;
331 return 0;
332 } else
333 return ieee80211_set_freq(local,
334 ieee80211_channel_to_frequency(freq->m));
335 } else {
336 int i, div = 1000000;
337 for (i = 0; i < freq->e; i++)
338 div /= 10;
339 if (div > 0)
340 return ieee80211_set_freq(local, freq->m / div);
341 else
342 return -EINVAL;
343 }
344 }
345
346
347 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
348 struct iw_request_info *info,
349 struct iw_freq *freq, char *extra)
350 {
351 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
352
353 freq->m = local->hw.conf.channel->center_freq;
354 freq->e = 6;
355
356 return 0;
357 }
358
359
360 static int ieee80211_ioctl_siwessid(struct net_device *dev,
361 struct iw_request_info *info,
362 struct iw_point *data, char *ssid)
363 {
364 struct ieee80211_sub_if_data *sdata;
365 size_t len = data->length;
366
367 /* iwconfig uses nul termination in SSID.. */
368 if (len > 0 && ssid[len - 1] == '\0')
369 len--;
370
371 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
372 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
373 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
374 int ret;
375 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
376 if (len > IEEE80211_MAX_SSID_LEN)
377 return -EINVAL;
378 memcpy(sdata->u.sta.ssid, ssid, len);
379 sdata->u.sta.ssid_len = len;
380 return 0;
381 }
382 if (data->flags)
383 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
384 else
385 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
386 ret = ieee80211_sta_set_ssid(dev, ssid, len);
387 if (ret)
388 return ret;
389 ieee80211_sta_req_auth(dev, &sdata->u.sta);
390 return 0;
391 }
392
393 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
394 memcpy(sdata->u.ap.ssid, ssid, len);
395 memset(sdata->u.ap.ssid + len, 0,
396 IEEE80211_MAX_SSID_LEN - len);
397 sdata->u.ap.ssid_len = len;
398 return ieee80211_if_config(dev);
399 }
400 return -EOPNOTSUPP;
401 }
402
403
404 static int ieee80211_ioctl_giwessid(struct net_device *dev,
405 struct iw_request_info *info,
406 struct iw_point *data, char *ssid)
407 {
408 size_t len;
409
410 struct ieee80211_sub_if_data *sdata;
411 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
412 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
413 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
414 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
415 if (res == 0) {
416 data->length = len;
417 data->flags = 1;
418 } else
419 data->flags = 0;
420 return res;
421 }
422
423 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
424 len = sdata->u.ap.ssid_len;
425 if (len > IW_ESSID_MAX_SIZE)
426 len = IW_ESSID_MAX_SIZE;
427 memcpy(ssid, sdata->u.ap.ssid, len);
428 data->length = len;
429 data->flags = 1;
430 return 0;
431 }
432 return -EOPNOTSUPP;
433 }
434
435
436 static int ieee80211_ioctl_siwap(struct net_device *dev,
437 struct iw_request_info *info,
438 struct sockaddr *ap_addr, char *extra)
439 {
440 struct ieee80211_sub_if_data *sdata;
441
442 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
443 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
444 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
445 int ret;
446 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
447 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
448 ETH_ALEN);
449 return 0;
450 }
451 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
452 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
453 IEEE80211_STA_AUTO_CHANNEL_SEL;
454 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
455 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
456 else
457 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
458 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
459 if (ret)
460 return ret;
461 ieee80211_sta_req_auth(dev, &sdata->u.sta);
462 return 0;
463 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
464 /*
465 * If it is necessary to update the WDS peer address
466 * while the interface is running, then we need to do
467 * more work here, namely if it is running we need to
468 * add a new and remove the old STA entry, this is
469 * normally handled by _open() and _stop().
470 */
471 if (netif_running(dev))
472 return -EBUSY;
473
474 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
475 ETH_ALEN);
476
477 return 0;
478 }
479
480 return -EOPNOTSUPP;
481 }
482
483
484 static int ieee80211_ioctl_giwap(struct net_device *dev,
485 struct iw_request_info *info,
486 struct sockaddr *ap_addr, char *extra)
487 {
488 struct ieee80211_sub_if_data *sdata;
489
490 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
491 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
492 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
493 ap_addr->sa_family = ARPHRD_ETHER;
494 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
495 return 0;
496 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
497 ap_addr->sa_family = ARPHRD_ETHER;
498 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
499 return 0;
500 }
501
502 return -EOPNOTSUPP;
503 }
504
505
506 static int ieee80211_ioctl_siwscan(struct net_device *dev,
507 struct iw_request_info *info,
508 union iwreq_data *wrqu, char *extra)
509 {
510 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
511 struct iw_scan_req *req = NULL;
512 u8 *ssid = NULL;
513 size_t ssid_len = 0;
514
515 if (!netif_running(dev))
516 return -ENETDOWN;
517
518 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
519 sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
520 sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
521 sdata->vif.type != IEEE80211_IF_TYPE_AP)
522 return -EOPNOTSUPP;
523
524 /* if SSID was specified explicitly then use that */
525 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
526 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
527 req = (struct iw_scan_req *)extra;
528 ssid = req->essid;
529 ssid_len = req->essid_len;
530 }
531
532 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
533 }
534
535
536 static int ieee80211_ioctl_giwscan(struct net_device *dev,
537 struct iw_request_info *info,
538 struct iw_point *data, char *extra)
539 {
540 int res;
541 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
542
543 if (local->sta_sw_scanning || local->sta_hw_scanning)
544 return -EAGAIN;
545
546 res = ieee80211_sta_scan_results(dev, extra, data->length);
547 if (res >= 0) {
548 data->length = res;
549 return 0;
550 }
551 data->length = 0;
552 return res;
553 }
554
555
556 static int ieee80211_ioctl_siwrate(struct net_device *dev,
557 struct iw_request_info *info,
558 struct iw_param *rate, char *extra)
559 {
560 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
561 int i, err = -EINVAL;
562 u32 target_rate = rate->value / 100000;
563 struct ieee80211_sub_if_data *sdata;
564 struct ieee80211_supported_band *sband;
565
566 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
567 if (!sdata->bss)
568 return -ENODEV;
569
570 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
571
572 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
573 * target_rate = X, rate->fixed = 1 means only rate X
574 * target_rate = X, rate->fixed = 0 means all rates <= X */
575 sdata->bss->max_ratectrl_rateidx = -1;
576 sdata->bss->force_unicast_rateidx = -1;
577 if (rate->value < 0)
578 return 0;
579
580 for (i=0; i< sband->n_bitrates; i++) {
581 struct ieee80211_rate *brate = &sband->bitrates[i];
582 int this_rate = brate->bitrate;
583
584 if (target_rate == this_rate) {
585 sdata->bss->max_ratectrl_rateidx = i;
586 if (rate->fixed)
587 sdata->bss->force_unicast_rateidx = i;
588 err = 0;
589 break;
590 }
591 }
592 return err;
593 }
594
595 static int ieee80211_ioctl_giwrate(struct net_device *dev,
596 struct iw_request_info *info,
597 struct iw_param *rate, char *extra)
598 {
599 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
600 struct sta_info *sta;
601 struct ieee80211_sub_if_data *sdata;
602 struct ieee80211_supported_band *sband;
603
604 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
605
606 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
607 return -EOPNOTSUPP;
608
609 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
610
611 rcu_read_lock();
612
613 sta = sta_info_get(local, sdata->u.sta.bssid);
614
615 if (sta && sta->txrate_idx < sband->n_bitrates)
616 rate->value = sband->bitrates[sta->txrate_idx].bitrate;
617 else
618 rate->value = 0;
619
620 rcu_read_unlock();
621
622 if (!sta)
623 return -ENODEV;
624
625 rate->value *= 100000;
626
627 return 0;
628 }
629
630 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
631 struct iw_request_info *info,
632 union iwreq_data *data, char *extra)
633 {
634 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
635 bool need_reconfig = 0;
636 int new_power_level;
637
638 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
639 return -EINVAL;
640 if (data->txpower.flags & IW_TXPOW_RANGE)
641 return -EINVAL;
642
643 if (data->txpower.fixed) {
644 new_power_level = data->txpower.value;
645 } else {
646 /*
647 * Automatic power level. Use maximum power for the current
648 * channel. Should be part of rate control.
649 */
650 struct ieee80211_channel* chan = local->hw.conf.channel;
651 if (!chan)
652 return -EINVAL;
653
654 new_power_level = chan->max_power;
655 }
656
657 if (local->hw.conf.power_level != new_power_level) {
658 local->hw.conf.power_level = new_power_level;
659 need_reconfig = 1;
660 }
661
662 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
663 local->hw.conf.radio_enabled = !(data->txpower.disabled);
664 need_reconfig = 1;
665 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
666 }
667
668 if (need_reconfig) {
669 ieee80211_hw_config(local);
670 /* The return value of hw_config is not of big interest here,
671 * as it doesn't say that it failed because of _this_ config
672 * change or something else. Ignore it. */
673 }
674
675 return 0;
676 }
677
678 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
679 struct iw_request_info *info,
680 union iwreq_data *data, char *extra)
681 {
682 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
683
684 data->txpower.fixed = 1;
685 data->txpower.disabled = !(local->hw.conf.radio_enabled);
686 data->txpower.value = local->hw.conf.power_level;
687 data->txpower.flags = IW_TXPOW_DBM;
688
689 return 0;
690 }
691
692 static int ieee80211_ioctl_siwrts(struct net_device *dev,
693 struct iw_request_info *info,
694 struct iw_param *rts, char *extra)
695 {
696 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
697
698 if (rts->disabled)
699 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
700 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
701 return -EINVAL;
702 else
703 local->rts_threshold = rts->value;
704
705 /* If the wlan card performs RTS/CTS in hardware/firmware,
706 * configure it here */
707
708 if (local->ops->set_rts_threshold)
709 local->ops->set_rts_threshold(local_to_hw(local),
710 local->rts_threshold);
711
712 return 0;
713 }
714
715 static int ieee80211_ioctl_giwrts(struct net_device *dev,
716 struct iw_request_info *info,
717 struct iw_param *rts, char *extra)
718 {
719 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
720
721 rts->value = local->rts_threshold;
722 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
723 rts->fixed = 1;
724
725 return 0;
726 }
727
728
729 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
730 struct iw_request_info *info,
731 struct iw_param *frag, char *extra)
732 {
733 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
734
735 if (frag->disabled)
736 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
737 else if (frag->value < 256 ||
738 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
739 return -EINVAL;
740 else {
741 /* Fragment length must be even, so strip LSB. */
742 local->fragmentation_threshold = frag->value & ~0x1;
743 }
744
745 /* If the wlan card performs fragmentation in hardware/firmware,
746 * configure it here */
747
748 if (local->ops->set_frag_threshold)
749 local->ops->set_frag_threshold(
750 local_to_hw(local),
751 local->fragmentation_threshold);
752
753 return 0;
754 }
755
756 static int ieee80211_ioctl_giwfrag(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 frag->value = local->fragmentation_threshold;
763 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
764 frag->fixed = 1;
765
766 return 0;
767 }
768
769
770 static int ieee80211_ioctl_siwretry(struct net_device *dev,
771 struct iw_request_info *info,
772 struct iw_param *retry, char *extra)
773 {
774 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
775
776 if (retry->disabled ||
777 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
778 return -EINVAL;
779
780 if (retry->flags & IW_RETRY_MAX)
781 local->long_retry_limit = retry->value;
782 else if (retry->flags & IW_RETRY_MIN)
783 local->short_retry_limit = retry->value;
784 else {
785 local->long_retry_limit = retry->value;
786 local->short_retry_limit = retry->value;
787 }
788
789 if (local->ops->set_retry_limit) {
790 return local->ops->set_retry_limit(
791 local_to_hw(local),
792 local->short_retry_limit,
793 local->long_retry_limit);
794 }
795
796 return 0;
797 }
798
799
800 static int ieee80211_ioctl_giwretry(struct net_device *dev,
801 struct iw_request_info *info,
802 struct iw_param *retry, char *extra)
803 {
804 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
805
806 retry->disabled = 0;
807 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
808 /* first return min value, iwconfig will ask max value
809 * later if needed */
810 retry->flags |= IW_RETRY_LIMIT;
811 retry->value = local->short_retry_limit;
812 if (local->long_retry_limit != local->short_retry_limit)
813 retry->flags |= IW_RETRY_MIN;
814 return 0;
815 }
816 if (retry->flags & IW_RETRY_MAX) {
817 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
818 retry->value = local->long_retry_limit;
819 }
820
821 return 0;
822 }
823
824 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
825 struct iw_request_info *info,
826 struct iw_point *data, char *extra)
827 {
828 struct ieee80211_sub_if_data *sdata;
829 struct iw_mlme *mlme = (struct iw_mlme *) extra;
830
831 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
832 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
833 sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
834 return -EINVAL;
835
836 switch (mlme->cmd) {
837 case IW_MLME_DEAUTH:
838 /* TODO: mlme->addr.sa_data */
839 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
840 case IW_MLME_DISASSOC:
841 /* TODO: mlme->addr.sa_data */
842 return ieee80211_sta_disassociate(dev, mlme->reason_code);
843 default:
844 return -EOPNOTSUPP;
845 }
846 }
847
848
849 static int ieee80211_ioctl_siwencode(struct net_device *dev,
850 struct iw_request_info *info,
851 struct iw_point *erq, char *keybuf)
852 {
853 struct ieee80211_sub_if_data *sdata;
854 int idx, i, alg = ALG_WEP;
855 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
856 int remove = 0;
857
858 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
859
860 idx = erq->flags & IW_ENCODE_INDEX;
861 if (idx == 0) {
862 if (sdata->default_key)
863 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
864 if (sdata->default_key == sdata->keys[i]) {
865 idx = i;
866 break;
867 }
868 }
869 } else if (idx < 1 || idx > 4)
870 return -EINVAL;
871 else
872 idx--;
873
874 if (erq->flags & IW_ENCODE_DISABLED)
875 remove = 1;
876 else if (erq->length == 0) {
877 /* No key data - just set the default TX key index */
878 ieee80211_set_default_key(sdata, idx);
879 return 0;
880 }
881
882 return ieee80211_set_encryption(
883 dev, bcaddr,
884 idx, alg, remove,
885 !sdata->default_key,
886 keybuf, erq->length);
887 }
888
889
890 static int ieee80211_ioctl_giwencode(struct net_device *dev,
891 struct iw_request_info *info,
892 struct iw_point *erq, char *key)
893 {
894 struct ieee80211_sub_if_data *sdata;
895 int idx, i;
896
897 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
898
899 idx = erq->flags & IW_ENCODE_INDEX;
900 if (idx < 1 || idx > 4) {
901 idx = -1;
902 if (!sdata->default_key)
903 idx = 0;
904 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
905 if (sdata->default_key == sdata->keys[i]) {
906 idx = i;
907 break;
908 }
909 }
910 if (idx < 0)
911 return -EINVAL;
912 } else
913 idx--;
914
915 erq->flags = idx + 1;
916
917 if (!sdata->keys[idx]) {
918 erq->length = 0;
919 erq->flags |= IW_ENCODE_DISABLED;
920 return 0;
921 }
922
923 memcpy(key, sdata->keys[idx]->conf.key,
924 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
925 erq->length = sdata->keys[idx]->conf.keylen;
926 erq->flags |= IW_ENCODE_ENABLED;
927
928 return 0;
929 }
930
931 static int ieee80211_ioctl_siwauth(struct net_device *dev,
932 struct iw_request_info *info,
933 struct iw_param *data, char *extra)
934 {
935 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
936 int ret = 0;
937
938 switch (data->flags & IW_AUTH_INDEX) {
939 case IW_AUTH_WPA_VERSION:
940 case IW_AUTH_CIPHER_PAIRWISE:
941 case IW_AUTH_CIPHER_GROUP:
942 case IW_AUTH_WPA_ENABLED:
943 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
944 case IW_AUTH_KEY_MGMT:
945 break;
946 case IW_AUTH_DROP_UNENCRYPTED:
947 sdata->drop_unencrypted = !!data->value;
948 break;
949 case IW_AUTH_PRIVACY_INVOKED:
950 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
951 ret = -EINVAL;
952 else {
953 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
954 /*
955 * Privacy invoked by wpa_supplicant, store the
956 * value and allow associating to a protected
957 * network without having a key up front.
958 */
959 if (data->value)
960 sdata->u.sta.flags |=
961 IEEE80211_STA_PRIVACY_INVOKED;
962 }
963 break;
964 case IW_AUTH_80211_AUTH_ALG:
965 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
966 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
967 sdata->u.sta.auth_algs = data->value;
968 else
969 ret = -EOPNOTSUPP;
970 break;
971 default:
972 ret = -EOPNOTSUPP;
973 break;
974 }
975 return ret;
976 }
977
978 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
979 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
980 {
981 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
982 struct iw_statistics *wstats = &local->wstats;
983 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
984 struct sta_info *sta = NULL;
985
986 rcu_read_lock();
987
988 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
989 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
990 sta = sta_info_get(local, sdata->u.sta.bssid);
991 if (!sta) {
992 wstats->discard.fragment = 0;
993 wstats->discard.misc = 0;
994 wstats->qual.qual = 0;
995 wstats->qual.level = 0;
996 wstats->qual.noise = 0;
997 wstats->qual.updated = IW_QUAL_ALL_INVALID;
998 } else {
999 wstats->qual.level = sta->last_rssi;
1000 wstats->qual.qual = sta->last_signal;
1001 wstats->qual.noise = sta->last_noise;
1002 wstats->qual.updated = local->wstats_flags;
1003 }
1004
1005 rcu_read_unlock();
1006
1007 return wstats;
1008 }
1009
1010 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1011 struct iw_request_info *info,
1012 struct iw_param *data, char *extra)
1013 {
1014 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1015 int ret = 0;
1016
1017 switch (data->flags & IW_AUTH_INDEX) {
1018 case IW_AUTH_80211_AUTH_ALG:
1019 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1020 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1021 data->value = sdata->u.sta.auth_algs;
1022 else
1023 ret = -EOPNOTSUPP;
1024 break;
1025 default:
1026 ret = -EOPNOTSUPP;
1027 break;
1028 }
1029 return ret;
1030 }
1031
1032
1033 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1034 struct iw_request_info *info,
1035 struct iw_point *erq, char *extra)
1036 {
1037 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1038 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1039 int uninitialized_var(alg), idx, i, remove = 0;
1040
1041 switch (ext->alg) {
1042 case IW_ENCODE_ALG_NONE:
1043 remove = 1;
1044 break;
1045 case IW_ENCODE_ALG_WEP:
1046 alg = ALG_WEP;
1047 break;
1048 case IW_ENCODE_ALG_TKIP:
1049 alg = ALG_TKIP;
1050 break;
1051 case IW_ENCODE_ALG_CCMP:
1052 alg = ALG_CCMP;
1053 break;
1054 default:
1055 return -EOPNOTSUPP;
1056 }
1057
1058 if (erq->flags & IW_ENCODE_DISABLED)
1059 remove = 1;
1060
1061 idx = erq->flags & IW_ENCODE_INDEX;
1062 if (idx < 1 || idx > 4) {
1063 idx = -1;
1064 if (!sdata->default_key)
1065 idx = 0;
1066 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1067 if (sdata->default_key == sdata->keys[i]) {
1068 idx = i;
1069 break;
1070 }
1071 }
1072 if (idx < 0)
1073 return -EINVAL;
1074 } else
1075 idx--;
1076
1077 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1078 remove,
1079 ext->ext_flags &
1080 IW_ENCODE_EXT_SET_TX_KEY,
1081 ext->key, ext->key_len);
1082 }
1083
1084
1085 /* Structures to export the Wireless Handlers */
1086
1087 static const iw_handler ieee80211_handler[] =
1088 {
1089 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1090 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1091 (iw_handler) NULL, /* SIOCSIWNWID */
1092 (iw_handler) NULL, /* SIOCGIWNWID */
1093 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1094 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1095 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1096 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1097 (iw_handler) NULL, /* SIOCSIWSENS */
1098 (iw_handler) NULL, /* SIOCGIWSENS */
1099 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1100 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1101 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1102 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1103 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1104 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1105 (iw_handler) NULL, /* SIOCSIWSPY */
1106 (iw_handler) NULL, /* SIOCGIWSPY */
1107 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1108 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1109 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1110 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1111 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1112 (iw_handler) NULL, /* SIOCGIWAPLIST */
1113 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1114 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1115 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1116 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1117 (iw_handler) NULL, /* SIOCSIWNICKN */
1118 (iw_handler) NULL, /* SIOCGIWNICKN */
1119 (iw_handler) NULL, /* -- hole -- */
1120 (iw_handler) NULL, /* -- hole -- */
1121 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1122 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1123 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1124 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1125 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1126 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1127 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1128 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1129 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1130 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1131 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1132 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1133 (iw_handler) NULL, /* SIOCSIWPOWER */
1134 (iw_handler) NULL, /* SIOCGIWPOWER */
1135 (iw_handler) NULL, /* -- hole -- */
1136 (iw_handler) NULL, /* -- hole -- */
1137 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1138 (iw_handler) NULL, /* SIOCGIWGENIE */
1139 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1140 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1141 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1142 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1143 (iw_handler) NULL, /* SIOCSIWPMKSA */
1144 (iw_handler) NULL, /* -- hole -- */
1145 };
1146
1147 const struct iw_handler_def ieee80211_iw_handler_def =
1148 {
1149 .num_standard = ARRAY_SIZE(ieee80211_handler),
1150 .standard = (iw_handler *) ieee80211_handler,
1151 .get_wireless_stats = ieee80211_get_wireless_stats,
1152 };
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