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Upgrade b43 and mac80211.
[openwrt/svn-archive/archive.git] / package / mac80211 / src / net / mac80211 / ieee80211_ioctl.c
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 "ieee80211_led.h"
25 #include "ieee80211_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 int ret = 0;
37 struct sta_info *sta;
38 struct ieee80211_key *key;
39 struct ieee80211_sub_if_data *sdata;
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 (is_broadcast_ether_addr(sta_addr)) {
50 sta = NULL;
51 key = sdata->keys[idx];
52 } else {
53 set_tx_key = 0;
54 /*
55 * According to the standard, the key index of a pairwise
56 * key must be zero. However, some AP are broken when it
57 * comes to WEP key indices, so we work around this.
58 */
59 if (idx != 0 && alg != ALG_WEP) {
60 printk(KERN_DEBUG "%s: set_encrypt - non-zero idx for "
61 "individual key\n", dev->name);
62 return -EINVAL;
63 }
64
65 sta = sta_info_get(local, sta_addr);
66 if (!sta) {
67 #ifdef CONFIG_MAC80211_VERBOSE_DEBUG
68 DECLARE_MAC_BUF(mac);
69 printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
70 "%s\n",
71 dev->name, print_mac(mac, sta_addr));
72 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
73
74 return -ENOENT;
75 }
76
77 key = sta->key;
78 }
79
80 if (remove) {
81 ieee80211_key_free(key);
82 key = NULL;
83 } else {
84 /*
85 * Automatically frees any old key if present.
86 */
87 key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
88 if (!key) {
89 ret = -ENOMEM;
90 goto err_out;
91 }
92 }
93
94 if (set_tx_key || (!sta && !sdata->default_key && key))
95 ieee80211_set_default_key(sdata, idx);
96
97 ret = 0;
98 err_out:
99 if (sta)
100 sta_info_put(sta);
101 return ret;
102 }
103
104 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
105 struct iw_request_info *info,
106 struct iw_point *data, char *extra)
107 {
108 struct ieee80211_sub_if_data *sdata;
109
110 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
111
112 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
113 return -EOPNOTSUPP;
114
115 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
116 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
117 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
118 if (ret)
119 return ret;
120 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
121 ieee80211_sta_req_auth(dev, &sdata->u.sta);
122 return 0;
123 }
124
125 return -EOPNOTSUPP;
126 }
127
128 static int ieee80211_ioctl_giwname(struct net_device *dev,
129 struct iw_request_info *info,
130 char *name, char *extra)
131 {
132 strcpy(name, "IEEE 802.11");
133
134 return 0;
135 }
136
137
138 static int ieee80211_ioctl_giwrange(struct net_device *dev,
139 struct iw_request_info *info,
140 struct iw_point *data, char *extra)
141 {
142 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
143 struct iw_range *range = (struct iw_range *) extra;
144 enum ieee80211_band band;
145 int c = 0;
146
147 data->length = sizeof(struct iw_range);
148 memset(range, 0, sizeof(struct iw_range));
149
150 range->we_version_compiled = WIRELESS_EXT;
151 range->we_version_source = 21;
152 range->retry_capa = IW_RETRY_LIMIT;
153 range->retry_flags = IW_RETRY_LIMIT;
154 range->min_retry = 0;
155 range->max_retry = 255;
156 range->min_rts = 0;
157 range->max_rts = 2347;
158 range->min_frag = 256;
159 range->max_frag = 2346;
160
161 range->encoding_size[0] = 5;
162 range->encoding_size[1] = 13;
163 range->num_encoding_sizes = 2;
164 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
165
166 range->max_qual.qual = local->hw.max_signal;
167 range->max_qual.level = local->hw.max_rssi;
168 range->max_qual.noise = local->hw.max_noise;
169 range->max_qual.updated = local->wstats_flags;
170
171 range->avg_qual.qual = local->hw.max_signal/2;
172 range->avg_qual.level = 0;
173 range->avg_qual.noise = 0;
174 range->avg_qual.updated = local->wstats_flags;
175
176 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
177 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
178
179
180 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
181 int i;
182 struct ieee80211_supported_band *sband;
183
184 sband = local->hw.wiphy->bands[band];
185
186 if (!sband)
187 continue;
188
189 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
190 struct ieee80211_channel *chan = &sband->channels[i];
191
192 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
193 range->freq[c].i =
194 ieee80211_frequency_to_channel(
195 chan->center_freq);
196 range->freq[c].m = chan->center_freq;
197 range->freq[c].e = 6;
198 c++;
199 }
200 }
201 }
202 range->num_channels = c;
203 range->num_frequency = c;
204
205 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
206 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
207 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
208 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
209
210 range->scan_capa |= IW_SCAN_CAPA_ESSID;
211
212 return 0;
213 }
214
215
216 static int ieee80211_ioctl_siwmode(struct net_device *dev,
217 struct iw_request_info *info,
218 __u32 *mode, char *extra)
219 {
220 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
221 int type;
222
223 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
224 return -EOPNOTSUPP;
225
226 switch (*mode) {
227 case IW_MODE_INFRA:
228 type = IEEE80211_IF_TYPE_STA;
229 break;
230 case IW_MODE_ADHOC:
231 type = IEEE80211_IF_TYPE_IBSS;
232 break;
233 case IW_MODE_MONITOR:
234 type = IEEE80211_IF_TYPE_MNTR;
235 break;
236 default:
237 return -EINVAL;
238 }
239
240 if (type == sdata->vif.type)
241 return 0;
242 if (netif_running(dev))
243 return -EBUSY;
244
245 ieee80211_if_reinit(dev);
246 ieee80211_if_set_type(dev, type);
247
248 return 0;
249 }
250
251
252 static int ieee80211_ioctl_giwmode(struct net_device *dev,
253 struct iw_request_info *info,
254 __u32 *mode, char *extra)
255 {
256 struct ieee80211_sub_if_data *sdata;
257
258 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
259 switch (sdata->vif.type) {
260 case IEEE80211_IF_TYPE_AP:
261 *mode = IW_MODE_MASTER;
262 break;
263 case IEEE80211_IF_TYPE_STA:
264 *mode = IW_MODE_INFRA;
265 break;
266 case IEEE80211_IF_TYPE_IBSS:
267 *mode = IW_MODE_ADHOC;
268 break;
269 case IEEE80211_IF_TYPE_MNTR:
270 *mode = IW_MODE_MONITOR;
271 break;
272 case IEEE80211_IF_TYPE_WDS:
273 *mode = IW_MODE_REPEAT;
274 break;
275 case IEEE80211_IF_TYPE_VLAN:
276 *mode = IW_MODE_SECOND; /* FIXME */
277 break;
278 default:
279 *mode = IW_MODE_AUTO;
280 break;
281 }
282 return 0;
283 }
284
285 int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
286 {
287 int set = 0;
288 int ret = -EINVAL;
289 enum ieee80211_band band;
290 struct ieee80211_supported_band *sband;
291 int i;
292
293 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
294 sband = local->hw.wiphy->bands[band];
295
296 if (!sband)
297 continue;
298
299 for (i = 0; i < sband->n_channels; i++) {
300 struct ieee80211_channel *chan = &sband->channels[i];
301
302 if (chan->flags & IEEE80211_CHAN_DISABLED)
303 continue;
304
305 if (chan->center_freq == freqMHz) {
306 set = 1;
307 local->oper_channel = chan;
308 break;
309 }
310 }
311 if (set)
312 break;
313 }
314
315 if (set) {
316 if (local->sta_sw_scanning)
317 ret = 0;
318 else
319 ret = ieee80211_hw_config(local);
320
321 rate_control_clear(local);
322 }
323
324 return ret;
325 }
326
327 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
328 struct iw_request_info *info,
329 struct iw_freq *freq, char *extra)
330 {
331 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
332 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
333
334 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
335 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
336
337 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
338 if (freq->e == 0) {
339 if (freq->m < 0) {
340 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
341 sdata->u.sta.flags |=
342 IEEE80211_STA_AUTO_CHANNEL_SEL;
343 return 0;
344 } else
345 return ieee80211_set_freq(local,
346 ieee80211_channel_to_frequency(freq->m));
347 } else {
348 int i, div = 1000000;
349 for (i = 0; i < freq->e; i++)
350 div /= 10;
351 if (div > 0)
352 return ieee80211_set_freq(local, freq->m / div);
353 else
354 return -EINVAL;
355 }
356 }
357
358
359 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
360 struct iw_request_info *info,
361 struct iw_freq *freq, char *extra)
362 {
363 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
364
365 freq->m = local->hw.conf.channel->center_freq;
366 freq->e = 6;
367
368 return 0;
369 }
370
371
372 static int ieee80211_ioctl_siwessid(struct net_device *dev,
373 struct iw_request_info *info,
374 struct iw_point *data, char *ssid)
375 {
376 struct ieee80211_sub_if_data *sdata;
377 size_t len = data->length;
378
379 /* iwconfig uses nul termination in SSID.. */
380 if (len > 0 && ssid[len - 1] == '\0')
381 len--;
382
383 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
384 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
385 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
386 int ret;
387 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
388 if (len > IEEE80211_MAX_SSID_LEN)
389 return -EINVAL;
390 memcpy(sdata->u.sta.ssid, ssid, len);
391 sdata->u.sta.ssid_len = len;
392 return 0;
393 }
394 if (data->flags)
395 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
396 else
397 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
398 ret = ieee80211_sta_set_ssid(dev, ssid, len);
399 if (ret)
400 return ret;
401 ieee80211_sta_req_auth(dev, &sdata->u.sta);
402 return 0;
403 }
404
405 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
406 memcpy(sdata->u.ap.ssid, ssid, len);
407 memset(sdata->u.ap.ssid + len, 0,
408 IEEE80211_MAX_SSID_LEN - len);
409 sdata->u.ap.ssid_len = len;
410 return ieee80211_if_config(dev);
411 }
412 return -EOPNOTSUPP;
413 }
414
415
416 static int ieee80211_ioctl_giwessid(struct net_device *dev,
417 struct iw_request_info *info,
418 struct iw_point *data, char *ssid)
419 {
420 size_t len;
421
422 struct ieee80211_sub_if_data *sdata;
423 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
424 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
425 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
426 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
427 if (res == 0) {
428 data->length = len;
429 data->flags = 1;
430 } else
431 data->flags = 0;
432 return res;
433 }
434
435 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
436 len = sdata->u.ap.ssid_len;
437 if (len > IW_ESSID_MAX_SIZE)
438 len = IW_ESSID_MAX_SIZE;
439 memcpy(ssid, sdata->u.ap.ssid, len);
440 data->length = len;
441 data->flags = 1;
442 return 0;
443 }
444 return -EOPNOTSUPP;
445 }
446
447
448 static int ieee80211_ioctl_siwap(struct net_device *dev,
449 struct iw_request_info *info,
450 struct sockaddr *ap_addr, char *extra)
451 {
452 struct ieee80211_sub_if_data *sdata;
453
454 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
455 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
456 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
457 int ret;
458 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
459 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
460 ETH_ALEN);
461 return 0;
462 }
463 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
464 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
465 IEEE80211_STA_AUTO_CHANNEL_SEL;
466 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
467 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
468 else
469 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
470 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
471 if (ret)
472 return ret;
473 ieee80211_sta_req_auth(dev, &sdata->u.sta);
474 return 0;
475 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
476 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
477 ETH_ALEN) == 0)
478 return 0;
479 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
480 }
481
482 return -EOPNOTSUPP;
483 }
484
485
486 static int ieee80211_ioctl_giwap(struct net_device *dev,
487 struct iw_request_info *info,
488 struct sockaddr *ap_addr, char *extra)
489 {
490 struct ieee80211_sub_if_data *sdata;
491
492 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
493 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
494 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
495 ap_addr->sa_family = ARPHRD_ETHER;
496 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
497 return 0;
498 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
499 ap_addr->sa_family = ARPHRD_ETHER;
500 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
501 return 0;
502 }
503
504 return -EOPNOTSUPP;
505 }
506
507
508 static int ieee80211_ioctl_siwscan(struct net_device *dev,
509 struct iw_request_info *info,
510 union iwreq_data *wrqu, char *extra)
511 {
512 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
513 struct iw_scan_req *req = NULL;
514 u8 *ssid = NULL;
515 size_t ssid_len = 0;
516
517 if (!netif_running(dev))
518 return -ENETDOWN;
519
520 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
521 sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
522 sdata->vif.type != IEEE80211_IF_TYPE_AP)
523 return -EOPNOTSUPP;
524
525 /* if SSID was specified explicitly then use that */
526 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
527 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
528 req = (struct iw_scan_req *)extra;
529 ssid = req->essid;
530 ssid_len = req->essid_len;
531 }
532
533 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
534 }
535
536
537 static int ieee80211_ioctl_giwscan(struct net_device *dev,
538 struct iw_request_info *info,
539 struct iw_point *data, char *extra)
540 {
541 int res;
542 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
543
544 if (local->sta_sw_scanning || local->sta_hw_scanning)
545 return -EAGAIN;
546
547 res = ieee80211_sta_scan_results(dev, extra, data->length);
548 if (res >= 0) {
549 data->length = res;
550 return 0;
551 }
552 data->length = 0;
553 return res;
554 }
555
556
557 static int ieee80211_ioctl_siwrate(struct net_device *dev,
558 struct iw_request_info *info,
559 struct iw_param *rate, char *extra)
560 {
561 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
562 int i, err = -EINVAL;
563 u32 target_rate = rate->value / 100000;
564 struct ieee80211_sub_if_data *sdata;
565 struct ieee80211_supported_band *sband;
566
567 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
568 if (!sdata->bss)
569 return -ENODEV;
570
571 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
572
573 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
574 * target_rate = X, rate->fixed = 1 means only rate X
575 * target_rate = X, rate->fixed = 0 means all rates <= X */
576 sdata->bss->max_ratectrl_rateidx = -1;
577 sdata->bss->force_unicast_rateidx = -1;
578 if (rate->value < 0)
579 return 0;
580
581 for (i=0; i< sband->n_bitrates; i++) {
582 struct ieee80211_rate *brate = &sband->bitrates[i];
583 int this_rate = brate->bitrate;
584
585 if (target_rate == this_rate) {
586 sdata->bss->max_ratectrl_rateidx = i;
587 if (rate->fixed)
588 sdata->bss->force_unicast_rateidx = i;
589 err = 0;
590 break;
591 }
592 }
593 return err;
594 }
595
596 static int ieee80211_ioctl_giwrate(struct net_device *dev,
597 struct iw_request_info *info,
598 struct iw_param *rate, char *extra)
599 {
600 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
601 struct sta_info *sta;
602 struct ieee80211_sub_if_data *sdata;
603 struct ieee80211_supported_band *sband;
604
605 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
606
607 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
608 sta = sta_info_get(local, sdata->u.sta.bssid);
609 else
610 return -EOPNOTSUPP;
611 if (!sta)
612 return -ENODEV;
613
614 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
615
616 if (sta->txrate_idx < sband->n_bitrates)
617 rate->value = sband->bitrates[sta->txrate_idx].bitrate;
618 else
619 rate->value = 0;
620 rate->value *= 100000;
621 sta_info_put(sta);
622 return 0;
623 }
624
625 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
626 struct iw_request_info *info,
627 union iwreq_data *data, char *extra)
628 {
629 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
630 bool need_reconfig = 0;
631 int new_power_level;
632
633 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
634 return -EINVAL;
635 if (data->txpower.flags & IW_TXPOW_RANGE)
636 return -EINVAL;
637
638 if (data->txpower.fixed) {
639 new_power_level = data->txpower.value;
640 } else {
641 /*
642 * Automatic power level. Use maximum power for the current
643 * channel. Should be part of rate control.
644 */
645 struct ieee80211_channel* chan = local->hw.conf.channel;
646 if (!chan)
647 return -EINVAL;
648
649 new_power_level = chan->max_power;
650 }
651
652 if (local->hw.conf.power_level != new_power_level) {
653 local->hw.conf.power_level = new_power_level;
654 need_reconfig = 1;
655 }
656
657 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
658 local->hw.conf.radio_enabled = !(data->txpower.disabled);
659 need_reconfig = 1;
660 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
661 }
662
663 if (need_reconfig) {
664 ieee80211_hw_config(local);
665 /* The return value of hw_config is not of big interest here,
666 * as it doesn't say that it failed because of _this_ config
667 * change or something else. Ignore it. */
668 }
669
670 return 0;
671 }
672
673 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
674 struct iw_request_info *info,
675 union iwreq_data *data, char *extra)
676 {
677 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
678
679 data->txpower.fixed = 1;
680 data->txpower.disabled = !(local->hw.conf.radio_enabled);
681 data->txpower.value = local->hw.conf.power_level;
682 data->txpower.flags = IW_TXPOW_DBM;
683
684 return 0;
685 }
686
687 static int ieee80211_ioctl_siwrts(struct net_device *dev,
688 struct iw_request_info *info,
689 struct iw_param *rts, char *extra)
690 {
691 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
692
693 if (rts->disabled)
694 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
695 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
696 return -EINVAL;
697 else
698 local->rts_threshold = rts->value;
699
700 /* If the wlan card performs RTS/CTS in hardware/firmware,
701 * configure it here */
702
703 if (local->ops->set_rts_threshold)
704 local->ops->set_rts_threshold(local_to_hw(local),
705 local->rts_threshold);
706
707 return 0;
708 }
709
710 static int ieee80211_ioctl_giwrts(struct net_device *dev,
711 struct iw_request_info *info,
712 struct iw_param *rts, char *extra)
713 {
714 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
715
716 rts->value = local->rts_threshold;
717 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
718 rts->fixed = 1;
719
720 return 0;
721 }
722
723
724 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
725 struct iw_request_info *info,
726 struct iw_param *frag, char *extra)
727 {
728 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
729
730 if (frag->disabled)
731 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
732 else if (frag->value < 256 ||
733 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
734 return -EINVAL;
735 else {
736 /* Fragment length must be even, so strip LSB. */
737 local->fragmentation_threshold = frag->value & ~0x1;
738 }
739
740 /* If the wlan card performs fragmentation in hardware/firmware,
741 * configure it here */
742
743 if (local->ops->set_frag_threshold)
744 local->ops->set_frag_threshold(
745 local_to_hw(local),
746 local->fragmentation_threshold);
747
748 return 0;
749 }
750
751 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
752 struct iw_request_info *info,
753 struct iw_param *frag, char *extra)
754 {
755 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
756
757 frag->value = local->fragmentation_threshold;
758 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
759 frag->fixed = 1;
760
761 return 0;
762 }
763
764
765 static int ieee80211_ioctl_siwretry(struct net_device *dev,
766 struct iw_request_info *info,
767 struct iw_param *retry, char *extra)
768 {
769 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
770
771 if (retry->disabled ||
772 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
773 return -EINVAL;
774
775 if (retry->flags & IW_RETRY_MAX)
776 local->long_retry_limit = retry->value;
777 else if (retry->flags & IW_RETRY_MIN)
778 local->short_retry_limit = retry->value;
779 else {
780 local->long_retry_limit = retry->value;
781 local->short_retry_limit = retry->value;
782 }
783
784 if (local->ops->set_retry_limit) {
785 return local->ops->set_retry_limit(
786 local_to_hw(local),
787 local->short_retry_limit,
788 local->long_retry_limit);
789 }
790
791 return 0;
792 }
793
794
795 static int ieee80211_ioctl_giwretry(struct net_device *dev,
796 struct iw_request_info *info,
797 struct iw_param *retry, char *extra)
798 {
799 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
800
801 retry->disabled = 0;
802 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
803 /* first return min value, iwconfig will ask max value
804 * later if needed */
805 retry->flags |= IW_RETRY_LIMIT;
806 retry->value = local->short_retry_limit;
807 if (local->long_retry_limit != local->short_retry_limit)
808 retry->flags |= IW_RETRY_MIN;
809 return 0;
810 }
811 if (retry->flags & IW_RETRY_MAX) {
812 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
813 retry->value = local->long_retry_limit;
814 }
815
816 return 0;
817 }
818
819 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
820 struct iw_request_info *info,
821 struct iw_point *data, char *extra)
822 {
823 struct ieee80211_sub_if_data *sdata;
824 struct iw_mlme *mlme = (struct iw_mlme *) extra;
825
826 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
827 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
828 sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
829 return -EINVAL;
830
831 switch (mlme->cmd) {
832 case IW_MLME_DEAUTH:
833 /* TODO: mlme->addr.sa_data */
834 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
835 case IW_MLME_DISASSOC:
836 /* TODO: mlme->addr.sa_data */
837 return ieee80211_sta_disassociate(dev, mlme->reason_code);
838 default:
839 return -EOPNOTSUPP;
840 }
841 }
842
843
844 static int ieee80211_ioctl_siwencode(struct net_device *dev,
845 struct iw_request_info *info,
846 struct iw_point *erq, char *keybuf)
847 {
848 struct ieee80211_sub_if_data *sdata;
849 int idx, i, alg = ALG_WEP;
850 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
851 int remove = 0;
852
853 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
854
855 idx = erq->flags & IW_ENCODE_INDEX;
856 if (idx == 0) {
857 if (sdata->default_key)
858 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
859 if (sdata->default_key == sdata->keys[i]) {
860 idx = i;
861 break;
862 }
863 }
864 } else if (idx < 1 || idx > 4)
865 return -EINVAL;
866 else
867 idx--;
868
869 if (erq->flags & IW_ENCODE_DISABLED)
870 remove = 1;
871 else if (erq->length == 0) {
872 /* No key data - just set the default TX key index */
873 ieee80211_set_default_key(sdata, idx);
874 return 0;
875 }
876
877 return ieee80211_set_encryption(
878 dev, bcaddr,
879 idx, alg, remove,
880 !sdata->default_key,
881 keybuf, erq->length);
882 }
883
884
885 static int ieee80211_ioctl_giwencode(struct net_device *dev,
886 struct iw_request_info *info,
887 struct iw_point *erq, char *key)
888 {
889 struct ieee80211_sub_if_data *sdata;
890 int idx, i;
891
892 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
893
894 idx = erq->flags & IW_ENCODE_INDEX;
895 if (idx < 1 || idx > 4) {
896 idx = -1;
897 if (!sdata->default_key)
898 idx = 0;
899 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
900 if (sdata->default_key == sdata->keys[i]) {
901 idx = i;
902 break;
903 }
904 }
905 if (idx < 0)
906 return -EINVAL;
907 } else
908 idx--;
909
910 erq->flags = idx + 1;
911
912 if (!sdata->keys[idx]) {
913 erq->length = 0;
914 erq->flags |= IW_ENCODE_DISABLED;
915 return 0;
916 }
917
918 memcpy(key, sdata->keys[idx]->conf.key,
919 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
920 erq->length = sdata->keys[idx]->conf.keylen;
921 erq->flags |= IW_ENCODE_ENABLED;
922
923 return 0;
924 }
925
926 static int ieee80211_ioctl_siwauth(struct net_device *dev,
927 struct iw_request_info *info,
928 struct iw_param *data, char *extra)
929 {
930 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
931 int ret = 0;
932
933 switch (data->flags & IW_AUTH_INDEX) {
934 case IW_AUTH_WPA_VERSION:
935 case IW_AUTH_CIPHER_PAIRWISE:
936 case IW_AUTH_CIPHER_GROUP:
937 case IW_AUTH_WPA_ENABLED:
938 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
939 case IW_AUTH_KEY_MGMT:
940 break;
941 case IW_AUTH_DROP_UNENCRYPTED:
942 sdata->drop_unencrypted = !!data->value;
943 break;
944 case IW_AUTH_PRIVACY_INVOKED:
945 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
946 ret = -EINVAL;
947 else {
948 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
949 /*
950 * Privacy invoked by wpa_supplicant, store the
951 * value and allow associating to a protected
952 * network without having a key up front.
953 */
954 if (data->value)
955 sdata->u.sta.flags |=
956 IEEE80211_STA_PRIVACY_INVOKED;
957 }
958 break;
959 case IW_AUTH_80211_AUTH_ALG:
960 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
961 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
962 sdata->u.sta.auth_algs = data->value;
963 else
964 ret = -EOPNOTSUPP;
965 break;
966 default:
967 ret = -EOPNOTSUPP;
968 break;
969 }
970 return ret;
971 }
972
973 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
974 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
975 {
976 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
977 struct iw_statistics *wstats = &local->wstats;
978 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
979 struct sta_info *sta = NULL;
980
981 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
982 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
983 sta = sta_info_get(local, sdata->u.sta.bssid);
984 if (!sta) {
985 wstats->discard.fragment = 0;
986 wstats->discard.misc = 0;
987 wstats->qual.qual = 0;
988 wstats->qual.level = 0;
989 wstats->qual.noise = 0;
990 wstats->qual.updated = IW_QUAL_ALL_INVALID;
991 } else {
992 wstats->qual.level = sta->last_rssi;
993 wstats->qual.qual = sta->last_signal;
994 wstats->qual.noise = sta->last_noise;
995 wstats->qual.updated = local->wstats_flags;
996 sta_info_put(sta);
997 }
998 return wstats;
999 }
1000
1001 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1002 struct iw_request_info *info,
1003 struct iw_param *data, char *extra)
1004 {
1005 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1006 int ret = 0;
1007
1008 switch (data->flags & IW_AUTH_INDEX) {
1009 case IW_AUTH_80211_AUTH_ALG:
1010 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1011 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1012 data->value = sdata->u.sta.auth_algs;
1013 else
1014 ret = -EOPNOTSUPP;
1015 break;
1016 default:
1017 ret = -EOPNOTSUPP;
1018 break;
1019 }
1020 return ret;
1021 }
1022
1023
1024 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1025 struct iw_request_info *info,
1026 struct iw_point *erq, char *extra)
1027 {
1028 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1029 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1030 int uninitialized_var(alg), idx, i, remove = 0;
1031
1032 switch (ext->alg) {
1033 case IW_ENCODE_ALG_NONE:
1034 remove = 1;
1035 break;
1036 case IW_ENCODE_ALG_WEP:
1037 alg = ALG_WEP;
1038 break;
1039 case IW_ENCODE_ALG_TKIP:
1040 alg = ALG_TKIP;
1041 break;
1042 case IW_ENCODE_ALG_CCMP:
1043 alg = ALG_CCMP;
1044 break;
1045 default:
1046 return -EOPNOTSUPP;
1047 }
1048
1049 if (erq->flags & IW_ENCODE_DISABLED)
1050 remove = 1;
1051
1052 idx = erq->flags & IW_ENCODE_INDEX;
1053 if (idx < 1 || idx > 4) {
1054 idx = -1;
1055 if (!sdata->default_key)
1056 idx = 0;
1057 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1058 if (sdata->default_key == sdata->keys[i]) {
1059 idx = i;
1060 break;
1061 }
1062 }
1063 if (idx < 0)
1064 return -EINVAL;
1065 } else
1066 idx--;
1067
1068 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1069 remove,
1070 ext->ext_flags &
1071 IW_ENCODE_EXT_SET_TX_KEY,
1072 ext->key, ext->key_len);
1073 }
1074
1075
1076 /* Structures to export the Wireless Handlers */
1077
1078 static const iw_handler ieee80211_handler[] =
1079 {
1080 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1081 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1082 (iw_handler) NULL, /* SIOCSIWNWID */
1083 (iw_handler) NULL, /* SIOCGIWNWID */
1084 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1085 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1086 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1087 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1088 (iw_handler) NULL, /* SIOCSIWSENS */
1089 (iw_handler) NULL, /* SIOCGIWSENS */
1090 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1091 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1092 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1093 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1094 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1095 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1096 (iw_handler) NULL, /* SIOCSIWSPY */
1097 (iw_handler) NULL, /* SIOCGIWSPY */
1098 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1099 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1100 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1101 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1102 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1103 (iw_handler) NULL, /* SIOCGIWAPLIST */
1104 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1105 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1106 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1107 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1108 (iw_handler) NULL, /* SIOCSIWNICKN */
1109 (iw_handler) NULL, /* SIOCGIWNICKN */
1110 (iw_handler) NULL, /* -- hole -- */
1111 (iw_handler) NULL, /* -- hole -- */
1112 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1113 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1114 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1115 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1116 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1117 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1118 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1119 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1120 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1121 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1122 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1123 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1124 (iw_handler) NULL, /* SIOCSIWPOWER */
1125 (iw_handler) NULL, /* SIOCGIWPOWER */
1126 (iw_handler) NULL, /* -- hole -- */
1127 (iw_handler) NULL, /* -- hole -- */
1128 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1129 (iw_handler) NULL, /* SIOCGIWGENIE */
1130 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1131 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1132 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1133 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1134 (iw_handler) NULL, /* SIOCSIWPMKSA */
1135 (iw_handler) NULL, /* -- hole -- */
1136 };
1137
1138 const struct iw_handler_def ieee80211_iw_handler_def =
1139 {
1140 .num_standard = ARRAY_SIZE(ieee80211_handler),
1141 .standard = (iw_handler *) ieee80211_handler,
1142 .get_wireless_stats = ieee80211_get_wireless_stats,
1143 };
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