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lockstat: fix numerical output rounding error
[linux-2.6/linux-loongson.git] / net / mac80211 / wext.c
blob34fa8ed1e784b4ec727a5d7f651ec5b105b53bb1
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 if (alg == ALG_WEP &&
99 key_len != LEN_WEP40 && key_len != LEN_WEP104) {
100 ieee80211_key_free(key);
101 err = -EINVAL;
102 goto out_unlock;
103 }
104
105 ieee80211_key_link(key, sdata, sta);
106
107 if (set_tx_key || (!sta && !sdata->default_key && key))
108 ieee80211_set_default_key(sdata, idx);
109 }
110
111 out_unlock:
112 rcu_read_unlock();
113
114 return err;
115 }
116
117 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
118 struct iw_request_info *info,
119 struct iw_point *data, char *extra)
120 {
121 struct ieee80211_sub_if_data *sdata;
122
123 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
124
125 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
126 return -EOPNOTSUPP;
127
128 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
129 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
130 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
131 if (ret)
132 return ret;
133 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
134 ieee80211_sta_req_auth(dev, &sdata->u.sta);
135 return 0;
136 }
137
138 return -EOPNOTSUPP;
139 }
140
141 static int ieee80211_ioctl_giwname(struct net_device *dev,
142 struct iw_request_info *info,
143 char *name, char *extra)
144 {
145 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
146 struct ieee80211_supported_band *sband;
147 u8 is_ht = 0, is_a = 0, is_b = 0, is_g = 0;
148
149
150 sband = local->hw.wiphy->bands[IEEE80211_BAND_5GHZ];
151 if (sband) {
152 is_a = 1;
153 is_ht |= sband->ht_info.ht_supported;
154 }
155
156 sband = local->hw.wiphy->bands[IEEE80211_BAND_2GHZ];
157 if (sband) {
158 int i;
159 /* Check for mandatory rates */
160 for (i = 0; i < sband->n_bitrates; i++) {
161 if (sband->bitrates[i].bitrate == 10)
162 is_b = 1;
163 if (sband->bitrates[i].bitrate == 60)
164 is_g = 1;
165 }
166 is_ht |= sband->ht_info.ht_supported;
167 }
168
169 strcpy(name, "IEEE 802.11");
170 if (is_a)
171 strcat(name, "a");
172 if (is_b)
173 strcat(name, "b");
174 if (is_g)
175 strcat(name, "g");
176 if (is_ht)
177 strcat(name, "n");
178
179 return 0;
180 }
181
182
183 static int ieee80211_ioctl_giwrange(struct net_device *dev,
184 struct iw_request_info *info,
185 struct iw_point *data, char *extra)
186 {
187 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
188 struct iw_range *range = (struct iw_range *) extra;
189 enum ieee80211_band band;
190 int c = 0;
191
192 data->length = sizeof(struct iw_range);
193 memset(range, 0, sizeof(struct iw_range));
194
195 range->we_version_compiled = WIRELESS_EXT;
196 range->we_version_source = 21;
197 range->retry_capa = IW_RETRY_LIMIT;
198 range->retry_flags = IW_RETRY_LIMIT;
199 range->min_retry = 0;
200 range->max_retry = 255;
201 range->min_rts = 0;
202 range->max_rts = 2347;
203 range->min_frag = 256;
204 range->max_frag = 2346;
205
206 range->encoding_size[0] = 5;
207 range->encoding_size[1] = 13;
208 range->num_encoding_sizes = 2;
209 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
210
211 if (local->hw.flags & IEEE80211_HW_SIGNAL_UNSPEC ||
212 local->hw.flags & IEEE80211_HW_SIGNAL_DB)
213 range->max_qual.level = local->hw.max_signal;
214 else if (local->hw.flags & IEEE80211_HW_SIGNAL_DBM)
215 range->max_qual.level = -110;
216 else
217 range->max_qual.level = 0;
218
219 if (local->hw.flags & IEEE80211_HW_NOISE_DBM)
220 range->max_qual.noise = -110;
221 else
222 range->max_qual.noise = 0;
223
224 range->max_qual.qual = 100;
225 range->max_qual.updated = local->wstats_flags;
226
227 range->avg_qual.qual = 50;
228 /* not always true but better than nothing */
229 range->avg_qual.level = range->max_qual.level / 2;
230 range->avg_qual.noise = range->max_qual.noise / 2;
231 range->avg_qual.updated = local->wstats_flags;
232
233 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
234 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
235
236
237 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
238 int i;
239 struct ieee80211_supported_band *sband;
240
241 sband = local->hw.wiphy->bands[band];
242
243 if (!sband)
244 continue;
245
246 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
247 struct ieee80211_channel *chan = &sband->channels[i];
248
249 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
250 range->freq[c].i =
251 ieee80211_frequency_to_channel(
252 chan->center_freq);
253 range->freq[c].m = chan->center_freq;
254 range->freq[c].e = 6;
255 c++;
256 }
257 }
258 }
259 range->num_channels = c;
260 range->num_frequency = c;
261
262 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
263 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
264 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
265
266 range->scan_capa |= IW_SCAN_CAPA_ESSID;
267
268 return 0;
269 }
270
271
272 static int ieee80211_ioctl_siwmode(struct net_device *dev,
273 struct iw_request_info *info,
274 __u32 *mode, char *extra)
275 {
276 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
277 int type;
278
279 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
280 return -EOPNOTSUPP;
281
282 switch (*mode) {
283 case IW_MODE_INFRA:
284 type = IEEE80211_IF_TYPE_STA;
285 break;
286 case IW_MODE_ADHOC:
287 type = IEEE80211_IF_TYPE_IBSS;
288 break;
289 case IW_MODE_REPEAT:
290 type = IEEE80211_IF_TYPE_WDS;
291 break;
292 case IW_MODE_MONITOR:
293 type = IEEE80211_IF_TYPE_MNTR;
294 break;
295 default:
296 return -EINVAL;
297 }
298
299 return ieee80211_if_change_type(sdata, type);
300 }
301
302
303 static int ieee80211_ioctl_giwmode(struct net_device *dev,
304 struct iw_request_info *info,
305 __u32 *mode, char *extra)
306 {
307 struct ieee80211_sub_if_data *sdata;
308
309 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
310 switch (sdata->vif.type) {
311 case IEEE80211_IF_TYPE_AP:
312 *mode = IW_MODE_MASTER;
313 break;
314 case IEEE80211_IF_TYPE_STA:
315 *mode = IW_MODE_INFRA;
316 break;
317 case IEEE80211_IF_TYPE_IBSS:
318 *mode = IW_MODE_ADHOC;
319 break;
320 case IEEE80211_IF_TYPE_MNTR:
321 *mode = IW_MODE_MONITOR;
322 break;
323 case IEEE80211_IF_TYPE_WDS:
324 *mode = IW_MODE_REPEAT;
325 break;
326 case IEEE80211_IF_TYPE_VLAN:
327 *mode = IW_MODE_SECOND; /* FIXME */
328 break;
329 default:
330 *mode = IW_MODE_AUTO;
331 break;
332 }
333 return 0;
334 }
335
336 int ieee80211_set_freq(struct net_device *dev, int freqMHz)
337 {
338 int ret = -EINVAL;
339 struct ieee80211_channel *chan;
340 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
341 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
342
343 chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
344
345 if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
346 if (sdata->vif.type == IEEE80211_IF_TYPE_IBSS &&
347 chan->flags & IEEE80211_CHAN_NO_IBSS) {
348 printk(KERN_DEBUG "%s: IBSS not allowed on frequency "
349 "%d MHz\n", dev->name, chan->center_freq);
350 return ret;
351 }
352 local->oper_channel = chan;
353
354 if (local->sta_sw_scanning || local->sta_hw_scanning)
355 ret = 0;
356 else
357 ret = ieee80211_hw_config(local);
358
359 rate_control_clear(local);
360 }
361
362 return ret;
363 }
364
365 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
366 struct iw_request_info *info,
367 struct iw_freq *freq, char *extra)
368 {
369 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
370
371 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
372 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
373
374 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
375 if (freq->e == 0) {
376 if (freq->m < 0) {
377 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
378 sdata->u.sta.flags |=
379 IEEE80211_STA_AUTO_CHANNEL_SEL;
380 return 0;
381 } else
382 return ieee80211_set_freq(dev,
383 ieee80211_channel_to_frequency(freq->m));
384 } else {
385 int i, div = 1000000;
386 for (i = 0; i < freq->e; i++)
387 div /= 10;
388 if (div > 0)
389 return ieee80211_set_freq(dev, freq->m / div);
390 else
391 return -EINVAL;
392 }
393 }
394
395
396 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
397 struct iw_request_info *info,
398 struct iw_freq *freq, char *extra)
399 {
400 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
401
402 freq->m = local->hw.conf.channel->center_freq;
403 freq->e = 6;
404
405 return 0;
406 }
407
408
409 static int ieee80211_ioctl_siwessid(struct net_device *dev,
410 struct iw_request_info *info,
411 struct iw_point *data, char *ssid)
412 {
413 struct ieee80211_sub_if_data *sdata;
414 size_t len = data->length;
415
416 /* iwconfig uses nul termination in SSID.. */
417 if (len > 0 && ssid[len - 1] == '\0')
418 len--;
419
420 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
421 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
422 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
423 int ret;
424 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
425 if (len > IEEE80211_MAX_SSID_LEN)
426 return -EINVAL;
427 memcpy(sdata->u.sta.ssid, ssid, len);
428 sdata->u.sta.ssid_len = len;
429 return 0;
430 }
431 if (data->flags)
432 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
433 else
434 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
435 ret = ieee80211_sta_set_ssid(dev, ssid, len);
436 if (ret)
437 return ret;
438 ieee80211_sta_req_auth(dev, &sdata->u.sta);
439 return 0;
440 }
441
442 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
443 memcpy(sdata->u.ap.ssid, ssid, len);
444 memset(sdata->u.ap.ssid + len, 0,
445 IEEE80211_MAX_SSID_LEN - len);
446 sdata->u.ap.ssid_len = len;
447 return ieee80211_if_config(sdata, IEEE80211_IFCC_SSID);
448 }
449 return -EOPNOTSUPP;
450 }
451
452
453 static int ieee80211_ioctl_giwessid(struct net_device *dev,
454 struct iw_request_info *info,
455 struct iw_point *data, char *ssid)
456 {
457 size_t len;
458
459 struct ieee80211_sub_if_data *sdata;
460 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
461 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
462 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
463 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
464 if (res == 0) {
465 data->length = len;
466 data->flags = 1;
467 } else
468 data->flags = 0;
469 return res;
470 }
471
472 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
473 len = sdata->u.ap.ssid_len;
474 if (len > IW_ESSID_MAX_SIZE)
475 len = IW_ESSID_MAX_SIZE;
476 memcpy(ssid, sdata->u.ap.ssid, len);
477 data->length = len;
478 data->flags = 1;
479 return 0;
480 }
481 return -EOPNOTSUPP;
482 }
483
484
485 static int ieee80211_ioctl_siwap(struct net_device *dev,
486 struct iw_request_info *info,
487 struct sockaddr *ap_addr, char *extra)
488 {
489 struct ieee80211_sub_if_data *sdata;
490
491 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
492 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
493 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
494 int ret;
495 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
496 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
497 ETH_ALEN);
498 return 0;
499 }
500 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
501 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
502 IEEE80211_STA_AUTO_CHANNEL_SEL;
503 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
504 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
505 else
506 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
507 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
508 if (ret)
509 return ret;
510 ieee80211_sta_req_auth(dev, &sdata->u.sta);
511 return 0;
512 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
513 /*
514 * If it is necessary to update the WDS peer address
515 * while the interface is running, then we need to do
516 * more work here, namely if it is running we need to
517 * add a new and remove the old STA entry, this is
518 * normally handled by _open() and _stop().
519 */
520 if (netif_running(dev))
521 return -EBUSY;
522
523 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
524 ETH_ALEN);
525
526 return 0;
527 }
528
529 return -EOPNOTSUPP;
530 }
531
532
533 static int ieee80211_ioctl_giwap(struct net_device *dev,
534 struct iw_request_info *info,
535 struct sockaddr *ap_addr, char *extra)
536 {
537 struct ieee80211_sub_if_data *sdata;
538
539 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
540 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
541 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
542 if (sdata->u.sta.state == IEEE80211_ASSOCIATED ||
543 sdata->u.sta.state == IEEE80211_IBSS_JOINED) {
544 ap_addr->sa_family = ARPHRD_ETHER;
545 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
546 return 0;
547 } else {
548 memset(&ap_addr->sa_data, 0, ETH_ALEN);
549 return 0;
550 }
551 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
552 ap_addr->sa_family = ARPHRD_ETHER;
553 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
554 return 0;
555 }
556
557 return -EOPNOTSUPP;
558 }
559
560
561 static int ieee80211_ioctl_siwscan(struct net_device *dev,
562 struct iw_request_info *info,
563 union iwreq_data *wrqu, char *extra)
564 {
565 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
566 struct iw_scan_req *req = NULL;
567 u8 *ssid = NULL;
568 size_t ssid_len = 0;
569
570 if (!netif_running(dev))
571 return -ENETDOWN;
572
573 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
574 sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
575 sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
576 sdata->vif.type != IEEE80211_IF_TYPE_AP)
577 return -EOPNOTSUPP;
578
579 /* if SSID was specified explicitly then use that */
580 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
581 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
582 req = (struct iw_scan_req *)extra;
583 ssid = req->essid;
584 ssid_len = req->essid_len;
585 }
586
587 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
588 }
589
590
591 static int ieee80211_ioctl_giwscan(struct net_device *dev,
592 struct iw_request_info *info,
593 struct iw_point *data, char *extra)
594 {
595 int res;
596 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
597
598 if (local->sta_sw_scanning || local->sta_hw_scanning)
599 return -EAGAIN;
600
601 res = ieee80211_sta_scan_results(dev, info, extra, data->length);
602 if (res >= 0) {
603 data->length = res;
604 return 0;
605 }
606 data->length = 0;
607 return res;
608 }
609
610
611 static int ieee80211_ioctl_siwrate(struct net_device *dev,
612 struct iw_request_info *info,
613 struct iw_param *rate, char *extra)
614 {
615 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
616 int i, err = -EINVAL;
617 u32 target_rate = rate->value / 100000;
618 struct ieee80211_sub_if_data *sdata;
619 struct ieee80211_supported_band *sband;
620
621 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
622
623 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
624
625 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
626 * target_rate = X, rate->fixed = 1 means only rate X
627 * target_rate = X, rate->fixed = 0 means all rates <= X */
628 sdata->max_ratectrl_rateidx = -1;
629 sdata->force_unicast_rateidx = -1;
630 if (rate->value < 0)
631 return 0;
632
633 for (i=0; i< sband->n_bitrates; i++) {
634 struct ieee80211_rate *brate = &sband->bitrates[i];
635 int this_rate = brate->bitrate;
636
637 if (target_rate == this_rate) {
638 sdata->max_ratectrl_rateidx = i;
639 if (rate->fixed)
640 sdata->force_unicast_rateidx = i;
641 err = 0;
642 break;
643 }
644 }
645 return err;
646 }
647
648 static int ieee80211_ioctl_giwrate(struct net_device *dev,
649 struct iw_request_info *info,
650 struct iw_param *rate, char *extra)
651 {
652 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
653 struct sta_info *sta;
654 struct ieee80211_sub_if_data *sdata;
655 struct ieee80211_supported_band *sband;
656
657 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
658
659 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
660 return -EOPNOTSUPP;
661
662 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
663
664 rcu_read_lock();
665
666 sta = sta_info_get(local, sdata->u.sta.bssid);
667
668 if (sta && sta->txrate_idx < sband->n_bitrates)
669 rate->value = sband->bitrates[sta->txrate_idx].bitrate;
670 else
671 rate->value = 0;
672
673 rcu_read_unlock();
674
675 if (!sta)
676 return -ENODEV;
677
678 rate->value *= 100000;
679
680 return 0;
681 }
682
683 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
684 struct iw_request_info *info,
685 union iwreq_data *data, char *extra)
686 {
687 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
688 bool need_reconfig = 0;
689 int new_power_level;
690
691 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
692 return -EINVAL;
693 if (data->txpower.flags & IW_TXPOW_RANGE)
694 return -EINVAL;
695
696 if (data->txpower.fixed) {
697 new_power_level = data->txpower.value;
698 } else {
699 /*
700 * Automatic power level. Use maximum power for the current
701 * channel. Should be part of rate control.
702 */
703 struct ieee80211_channel* chan = local->hw.conf.channel;
704 if (!chan)
705 return -EINVAL;
706
707 new_power_level = chan->max_power;
708 }
709
710 if (local->hw.conf.power_level != new_power_level) {
711 local->hw.conf.power_level = new_power_level;
712 need_reconfig = 1;
713 }
714
715 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
716 local->hw.conf.radio_enabled = !(data->txpower.disabled);
717 need_reconfig = 1;
718 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
719 }
720
721 if (need_reconfig) {
722 ieee80211_hw_config(local);
723 /* The return value of hw_config is not of big interest here,
724 * as it doesn't say that it failed because of _this_ config
725 * change or something else. Ignore it. */
726 }
727
728 return 0;
729 }
730
731 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
732 struct iw_request_info *info,
733 union iwreq_data *data, char *extra)
734 {
735 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
736
737 data->txpower.fixed = 1;
738 data->txpower.disabled = !(local->hw.conf.radio_enabled);
739 data->txpower.value = local->hw.conf.power_level;
740 data->txpower.flags = IW_TXPOW_DBM;
741
742 return 0;
743 }
744
745 static int ieee80211_ioctl_siwrts(struct net_device *dev,
746 struct iw_request_info *info,
747 struct iw_param *rts, char *extra)
748 {
749 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
750
751 if (rts->disabled)
752 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
753 else if (!rts->fixed)
754 /* if the rts value is not fixed, then take default */
755 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
756 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
757 return -EINVAL;
758 else
759 local->rts_threshold = rts->value;
760
761 /* If the wlan card performs RTS/CTS in hardware/firmware,
762 * configure it here */
763
764 if (local->ops->set_rts_threshold)
765 local->ops->set_rts_threshold(local_to_hw(local),
766 local->rts_threshold);
767
768 return 0;
769 }
770
771 static int ieee80211_ioctl_giwrts(struct net_device *dev,
772 struct iw_request_info *info,
773 struct iw_param *rts, char *extra)
774 {
775 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
776
777 rts->value = local->rts_threshold;
778 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
779 rts->fixed = 1;
780
781 return 0;
782 }
783
784
785 static int ieee80211_ioctl_siwfrag(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 if (frag->disabled)
792 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
793 else if (!frag->fixed)
794 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
795 else if (frag->value < 256 ||
796 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
797 return -EINVAL;
798 else {
799 /* Fragment length must be even, so strip LSB. */
800 local->fragmentation_threshold = frag->value & ~0x1;
801 }
802
803 /* If the wlan card performs fragmentation in hardware/firmware,
804 * configure it here */
805
806 if (local->ops->set_frag_threshold)
807 local->ops->set_frag_threshold(
808 local_to_hw(local),
809 local->fragmentation_threshold);
810
811 return 0;
812 }
813
814 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
815 struct iw_request_info *info,
816 struct iw_param *frag, char *extra)
817 {
818 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
819
820 frag->value = local->fragmentation_threshold;
821 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
822 frag->fixed = 1;
823
824 return 0;
825 }
826
827
828 static int ieee80211_ioctl_siwretry(struct net_device *dev,
829 struct iw_request_info *info,
830 struct iw_param *retry, char *extra)
831 {
832 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
833
834 if (retry->disabled ||
835 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
836 return -EINVAL;
837
838 if (retry->flags & IW_RETRY_MAX)
839 local->long_retry_limit = retry->value;
840 else if (retry->flags & IW_RETRY_MIN)
841 local->short_retry_limit = retry->value;
842 else {
843 local->long_retry_limit = retry->value;
844 local->short_retry_limit = retry->value;
845 }
846
847 if (local->ops->set_retry_limit) {
848 return local->ops->set_retry_limit(
849 local_to_hw(local),
850 local->short_retry_limit,
851 local->long_retry_limit);
852 }
853
854 return 0;
855 }
856
857
858 static int ieee80211_ioctl_giwretry(struct net_device *dev,
859 struct iw_request_info *info,
860 struct iw_param *retry, char *extra)
861 {
862 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
863
864 retry->disabled = 0;
865 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
866 /* first return min value, iwconfig will ask max value
867 * later if needed */
868 retry->flags |= IW_RETRY_LIMIT;
869 retry->value = local->short_retry_limit;
870 if (local->long_retry_limit != local->short_retry_limit)
871 retry->flags |= IW_RETRY_MIN;
872 return 0;
873 }
874 if (retry->flags & IW_RETRY_MAX) {
875 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
876 retry->value = local->long_retry_limit;
877 }
878
879 return 0;
880 }
881
882 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
883 struct iw_request_info *info,
884 struct iw_point *data, char *extra)
885 {
886 struct ieee80211_sub_if_data *sdata;
887 struct iw_mlme *mlme = (struct iw_mlme *) extra;
888
889 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
890 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
891 sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
892 return -EINVAL;
893
894 switch (mlme->cmd) {
895 case IW_MLME_DEAUTH:
896 /* TODO: mlme->addr.sa_data */
897 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
898 case IW_MLME_DISASSOC:
899 /* TODO: mlme->addr.sa_data */
900 return ieee80211_sta_disassociate(dev, mlme->reason_code);
901 default:
902 return -EOPNOTSUPP;
903 }
904 }
905
906
907 static int ieee80211_ioctl_siwencode(struct net_device *dev,
908 struct iw_request_info *info,
909 struct iw_point *erq, char *keybuf)
910 {
911 struct ieee80211_sub_if_data *sdata;
912 int idx, i, alg = ALG_WEP;
913 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
914 int remove = 0;
915
916 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
917
918 idx = erq->flags & IW_ENCODE_INDEX;
919 if (idx == 0) {
920 if (sdata->default_key)
921 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
922 if (sdata->default_key == sdata->keys[i]) {
923 idx = i;
924 break;
925 }
926 }
927 } else if (idx < 1 || idx > 4)
928 return -EINVAL;
929 else
930 idx--;
931
932 if (erq->flags & IW_ENCODE_DISABLED)
933 remove = 1;
934 else if (erq->length == 0) {
935 /* No key data - just set the default TX key index */
936 ieee80211_set_default_key(sdata, idx);
937 return 0;
938 }
939
940 return ieee80211_set_encryption(
941 dev, bcaddr,
942 idx, alg, remove,
943 !sdata->default_key,
944 keybuf, erq->length);
945 }
946
947
948 static int ieee80211_ioctl_giwencode(struct net_device *dev,
949 struct iw_request_info *info,
950 struct iw_point *erq, char *key)
951 {
952 struct ieee80211_sub_if_data *sdata;
953 int idx, i;
954
955 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
956
957 idx = erq->flags & IW_ENCODE_INDEX;
958 if (idx < 1 || idx > 4) {
959 idx = -1;
960 if (!sdata->default_key)
961 idx = 0;
962 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
963 if (sdata->default_key == sdata->keys[i]) {
964 idx = i;
965 break;
966 }
967 }
968 if (idx < 0)
969 return -EINVAL;
970 } else
971 idx--;
972
973 erq->flags = idx + 1;
974
975 if (!sdata->keys[idx]) {
976 erq->length = 0;
977 erq->flags |= IW_ENCODE_DISABLED;
978 return 0;
979 }
980
981 memcpy(key, sdata->keys[idx]->conf.key,
982 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
983 erq->length = sdata->keys[idx]->conf.keylen;
984 erq->flags |= IW_ENCODE_ENABLED;
985
986 if (sdata->vif.type == IEEE80211_IF_TYPE_STA) {
987 struct ieee80211_if_sta *ifsta = &sdata->u.sta;
988 switch (ifsta->auth_alg) {
989 case WLAN_AUTH_OPEN:
990 case WLAN_AUTH_LEAP:
991 erq->flags |= IW_ENCODE_OPEN;
992 break;
993 case WLAN_AUTH_SHARED_KEY:
994 erq->flags |= IW_ENCODE_RESTRICTED;
995 break;
996 }
997 }
998
999 return 0;
1000 }
1001
1002 static int ieee80211_ioctl_siwpower(struct net_device *dev,
1003 struct iw_request_info *info,
1004 struct iw_param *wrq,
1005 char *extra)
1006 {
1007 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1008 struct ieee80211_conf *conf = &local->hw.conf;
1009
1010 if (wrq->disabled) {
1011 conf->flags &= ~IEEE80211_CONF_PS;
1012 return ieee80211_hw_config(local);
1013 }
1014
1015 switch (wrq->flags & IW_POWER_MODE) {
1016 case IW_POWER_ON: /* If not specified */
1017 case IW_POWER_MODE: /* If set all mask */
1018 case IW_POWER_ALL_R: /* If explicitely state all */
1019 conf->flags |= IEEE80211_CONF_PS;
1020 break;
1021 default: /* Otherwise we don't support it */
1022 return -EINVAL;
1023 }
1024
1025 return ieee80211_hw_config(local);
1026 }
1027
1028 static int ieee80211_ioctl_giwpower(struct net_device *dev,
1029 struct iw_request_info *info,
1030 union iwreq_data *wrqu,
1031 char *extra)
1032 {
1033 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1034 struct ieee80211_conf *conf = &local->hw.conf;
1035
1036 wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS);
1037
1038 return 0;
1039 }
1040
1041 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1042 struct iw_request_info *info,
1043 struct iw_param *data, char *extra)
1044 {
1045 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1046 int ret = 0;
1047
1048 switch (data->flags & IW_AUTH_INDEX) {
1049 case IW_AUTH_WPA_VERSION:
1050 case IW_AUTH_CIPHER_PAIRWISE:
1051 case IW_AUTH_CIPHER_GROUP:
1052 case IW_AUTH_WPA_ENABLED:
1053 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1054 case IW_AUTH_KEY_MGMT:
1055 break;
1056 case IW_AUTH_DROP_UNENCRYPTED:
1057 sdata->drop_unencrypted = !!data->value;
1058 break;
1059 case IW_AUTH_PRIVACY_INVOKED:
1060 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
1061 ret = -EINVAL;
1062 else {
1063 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
1064 /*
1065 * Privacy invoked by wpa_supplicant, store the
1066 * value and allow associating to a protected
1067 * network without having a key up front.
1068 */
1069 if (data->value)
1070 sdata->u.sta.flags |=
1071 IEEE80211_STA_PRIVACY_INVOKED;
1072 }
1073 break;
1074 case IW_AUTH_80211_AUTH_ALG:
1075 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1076 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1077 sdata->u.sta.auth_algs = data->value;
1078 else
1079 ret = -EOPNOTSUPP;
1080 break;
1081 default:
1082 ret = -EOPNOTSUPP;
1083 break;
1084 }
1085 return ret;
1086 }
1087
1088 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1089 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1090 {
1091 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1092 struct iw_statistics *wstats = &local->wstats;
1093 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1094 struct sta_info *sta = NULL;
1095
1096 rcu_read_lock();
1097
1098 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1099 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1100 sta = sta_info_get(local, sdata->u.sta.bssid);
1101 if (!sta) {
1102 wstats->discard.fragment = 0;
1103 wstats->discard.misc = 0;
1104 wstats->qual.qual = 0;
1105 wstats->qual.level = 0;
1106 wstats->qual.noise = 0;
1107 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1108 } else {
1109 wstats->qual.level = sta->last_signal;
1110 wstats->qual.qual = sta->last_qual;
1111 wstats->qual.noise = sta->last_noise;
1112 wstats->qual.updated = local->wstats_flags;
1113 }
1114
1115 rcu_read_unlock();
1116
1117 return wstats;
1118 }
1119
1120 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1121 struct iw_request_info *info,
1122 struct iw_param *data, char *extra)
1123 {
1124 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1125 int ret = 0;
1126
1127 switch (data->flags & IW_AUTH_INDEX) {
1128 case IW_AUTH_80211_AUTH_ALG:
1129 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1130 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1131 data->value = sdata->u.sta.auth_algs;
1132 else
1133 ret = -EOPNOTSUPP;
1134 break;
1135 default:
1136 ret = -EOPNOTSUPP;
1137 break;
1138 }
1139 return ret;
1140 }
1141
1142
1143 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1144 struct iw_request_info *info,
1145 struct iw_point *erq, char *extra)
1146 {
1147 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1148 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1149 int uninitialized_var(alg), idx, i, remove = 0;
1150
1151 switch (ext->alg) {
1152 case IW_ENCODE_ALG_NONE:
1153 remove = 1;
1154 break;
1155 case IW_ENCODE_ALG_WEP:
1156 alg = ALG_WEP;
1157 break;
1158 case IW_ENCODE_ALG_TKIP:
1159 alg = ALG_TKIP;
1160 break;
1161 case IW_ENCODE_ALG_CCMP:
1162 alg = ALG_CCMP;
1163 break;
1164 default:
1165 return -EOPNOTSUPP;
1166 }
1167
1168 if (erq->flags & IW_ENCODE_DISABLED)
1169 remove = 1;
1170
1171 idx = erq->flags & IW_ENCODE_INDEX;
1172 if (idx < 1 || idx > 4) {
1173 idx = -1;
1174 if (!sdata->default_key)
1175 idx = 0;
1176 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1177 if (sdata->default_key == sdata->keys[i]) {
1178 idx = i;
1179 break;
1180 }
1181 }
1182 if (idx < 0)
1183 return -EINVAL;
1184 } else
1185 idx--;
1186
1187 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1188 remove,
1189 ext->ext_flags &
1190 IW_ENCODE_EXT_SET_TX_KEY,
1191 ext->key, ext->key_len);
1192 }
1193
1194
1195 /* Structures to export the Wireless Handlers */
1196
1197 static const iw_handler ieee80211_handler[] =
1198 {
1199 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1200 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1201 (iw_handler) NULL, /* SIOCSIWNWID */
1202 (iw_handler) NULL, /* SIOCGIWNWID */
1203 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1204 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1205 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1206 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1207 (iw_handler) NULL, /* SIOCSIWSENS */
1208 (iw_handler) NULL, /* SIOCGIWSENS */
1209 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1210 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1211 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1212 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1213 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1214 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1215 (iw_handler) NULL, /* SIOCSIWSPY */
1216 (iw_handler) NULL, /* SIOCGIWSPY */
1217 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1218 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1219 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1220 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1221 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1222 (iw_handler) NULL, /* SIOCGIWAPLIST */
1223 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1224 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1225 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1226 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1227 (iw_handler) NULL, /* SIOCSIWNICKN */
1228 (iw_handler) NULL, /* SIOCGIWNICKN */
1229 (iw_handler) NULL, /* -- hole -- */
1230 (iw_handler) NULL, /* -- hole -- */
1231 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1232 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1233 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1234 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1235 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1236 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1237 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1238 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1239 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1240 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1241 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1242 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1243 (iw_handler) ieee80211_ioctl_siwpower, /* SIOCSIWPOWER */
1244 (iw_handler) ieee80211_ioctl_giwpower, /* SIOCGIWPOWER */
1245 (iw_handler) NULL, /* -- hole -- */
1246 (iw_handler) NULL, /* -- hole -- */
1247 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1248 (iw_handler) NULL, /* SIOCGIWGENIE */
1249 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1250 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1251 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1252 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1253 (iw_handler) NULL, /* SIOCSIWPMKSA */
1254 (iw_handler) NULL, /* -- hole -- */
1255 };
1256
1257 const struct iw_handler_def ieee80211_iw_handler_def =
1258 {
1259 .num_standard = ARRAY_SIZE(ieee80211_handler),
1260 .standard = (iw_handler *) ieee80211_handler,
1261 .get_wireless_stats = ieee80211_get_wireless_stats,
1262 };
linux kernel for loongson