projects / GitHub / mt8127 / android_kernel_alcatel_ttab.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
blame | history | raw | HEAD
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / 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 struct sta_info *sta;
37 struct ieee80211_key *key;
38 struct ieee80211_sub_if_data *sdata;
39
40 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
41
42 if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
43 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
44 dev->name, idx);
45 return -EINVAL;
46 }
47
48 if (remove) {
49 if (is_broadcast_ether_addr(sta_addr)) {
50 key = sdata->keys[idx];
51 } else {
52 sta = sta_info_get(local, sta_addr);
53 if (!sta)
54 return -ENOENT;
55 key = sta->key;
56 }
57
58 ieee80211_key_free(key);
59 return 0;
60 } else {
61 key = ieee80211_key_alloc(alg, idx, key_len, _key);
62 if (!key)
63 return -ENOMEM;
64
65 sta = NULL;
66
67 if (!is_broadcast_ether_addr(sta_addr)) {
68 set_tx_key = 0;
69 /*
70 * According to the standard, the key index of a
71 * pairwise key must be zero. However, some AP are
72 * broken when it comes to WEP key indices, so we
73 * work around this.
74 */
75 if (idx != 0 && alg != ALG_WEP) {
76 ieee80211_key_free(key);
77 return -EINVAL;
78 }
79
80 sta = sta_info_get(local, sta_addr);
81 if (!sta) {
82 ieee80211_key_free(key);
83 return -ENOENT;
84 }
85 }
86
87 ieee80211_key_link(key, sdata, sta);
88
89 if (set_tx_key || (!sta && !sdata->default_key && key))
90 ieee80211_set_default_key(sdata, idx);
91 }
92
93 return 0;
94 }
95
96 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
97 struct iw_request_info *info,
98 struct iw_point *data, char *extra)
99 {
100 struct ieee80211_sub_if_data *sdata;
101
102 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
103
104 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
105 return -EOPNOTSUPP;
106
107 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
108 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
109 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
110 if (ret)
111 return ret;
112 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
113 ieee80211_sta_req_auth(dev, &sdata->u.sta);
114 return 0;
115 }
116
117 return -EOPNOTSUPP;
118 }
119
120 static int ieee80211_ioctl_giwname(struct net_device *dev,
121 struct iw_request_info *info,
122 char *name, char *extra)
123 {
124 strcpy(name, "IEEE 802.11");
125
126 return 0;
127 }
128
129
130 static int ieee80211_ioctl_giwrange(struct net_device *dev,
131 struct iw_request_info *info,
132 struct iw_point *data, char *extra)
133 {
134 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
135 struct iw_range *range = (struct iw_range *) extra;
136 enum ieee80211_band band;
137 int c = 0;
138
139 data->length = sizeof(struct iw_range);
140 memset(range, 0, sizeof(struct iw_range));
141
142 range->we_version_compiled = WIRELESS_EXT;
143 range->we_version_source = 21;
144 range->retry_capa = IW_RETRY_LIMIT;
145 range->retry_flags = IW_RETRY_LIMIT;
146 range->min_retry = 0;
147 range->max_retry = 255;
148 range->min_rts = 0;
149 range->max_rts = 2347;
150 range->min_frag = 256;
151 range->max_frag = 2346;
152
153 range->encoding_size[0] = 5;
154 range->encoding_size[1] = 13;
155 range->num_encoding_sizes = 2;
156 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
157
158 range->max_qual.qual = local->hw.max_signal;
159 range->max_qual.level = local->hw.max_rssi;
160 range->max_qual.noise = local->hw.max_noise;
161 range->max_qual.updated = local->wstats_flags;
162
163 range->avg_qual.qual = local->hw.max_signal/2;
164 range->avg_qual.level = 0;
165 range->avg_qual.noise = 0;
166 range->avg_qual.updated = local->wstats_flags;
167
168 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
169 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
170
171
172 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
173 int i;
174 struct ieee80211_supported_band *sband;
175
176 sband = local->hw.wiphy->bands[band];
177
178 if (!sband)
179 continue;
180
181 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
182 struct ieee80211_channel *chan = &sband->channels[i];
183
184 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
185 range->freq[c].i =
186 ieee80211_frequency_to_channel(
187 chan->center_freq);
188 range->freq[c].m = chan->center_freq;
189 range->freq[c].e = 6;
190 c++;
191 }
192 }
193 }
194 range->num_channels = c;
195 range->num_frequency = c;
196
197 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
198 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
199 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
200 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
201
202 range->scan_capa |= IW_SCAN_CAPA_ESSID;
203
204 return 0;
205 }
206
207
208 static int ieee80211_ioctl_siwmode(struct net_device *dev,
209 struct iw_request_info *info,
210 __u32 *mode, char *extra)
211 {
212 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
213 int type;
214
215 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
216 return -EOPNOTSUPP;
217
218 switch (*mode) {
219 case IW_MODE_INFRA:
220 type = IEEE80211_IF_TYPE_STA;
221 break;
222 case IW_MODE_ADHOC:
223 type = IEEE80211_IF_TYPE_IBSS;
224 break;
225 case IW_MODE_MONITOR:
226 type = IEEE80211_IF_TYPE_MNTR;
227 break;
228 default:
229 return -EINVAL;
230 }
231
232 if (type == sdata->vif.type)
233 return 0;
234 if (netif_running(dev))
235 return -EBUSY;
236
237 ieee80211_if_reinit(dev);
238 ieee80211_if_set_type(dev, type);
239
240 return 0;
241 }
242
243
244 static int ieee80211_ioctl_giwmode(struct net_device *dev,
245 struct iw_request_info *info,
246 __u32 *mode, char *extra)
247 {
248 struct ieee80211_sub_if_data *sdata;
249
250 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
251 switch (sdata->vif.type) {
252 case IEEE80211_IF_TYPE_AP:
253 *mode = IW_MODE_MASTER;
254 break;
255 case IEEE80211_IF_TYPE_STA:
256 *mode = IW_MODE_INFRA;
257 break;
258 case IEEE80211_IF_TYPE_IBSS:
259 *mode = IW_MODE_ADHOC;
260 break;
261 case IEEE80211_IF_TYPE_MNTR:
262 *mode = IW_MODE_MONITOR;
263 break;
264 case IEEE80211_IF_TYPE_WDS:
265 *mode = IW_MODE_REPEAT;
266 break;
267 case IEEE80211_IF_TYPE_VLAN:
268 *mode = IW_MODE_SECOND; /* FIXME */
269 break;
270 default:
271 *mode = IW_MODE_AUTO;
272 break;
273 }
274 return 0;
275 }
276
277 int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
278 {
279 int ret = -EINVAL;
280 struct ieee80211_channel *chan;
281
282 chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
283
284 if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
285 local->oper_channel = chan;
286
287 if (local->sta_sw_scanning || local->sta_hw_scanning)
288 ret = 0;
289 else
290 ret = ieee80211_hw_config(local);
291
292 rate_control_clear(local);
293 }
294
295 return ret;
296 }
297
298 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
299 struct iw_request_info *info,
300 struct iw_freq *freq, char *extra)
301 {
302 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
303 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
304
305 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
306 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
307
308 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
309 if (freq->e == 0) {
310 if (freq->m < 0) {
311 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
312 sdata->u.sta.flags |=
313 IEEE80211_STA_AUTO_CHANNEL_SEL;
314 return 0;
315 } else
316 return ieee80211_set_freq(local,
317 ieee80211_channel_to_frequency(freq->m));
318 } else {
319 int i, div = 1000000;
320 for (i = 0; i < freq->e; i++)
321 div /= 10;
322 if (div > 0)
323 return ieee80211_set_freq(local, freq->m / div);
324 else
325 return -EINVAL;
326 }
327 }
328
329
330 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
331 struct iw_request_info *info,
332 struct iw_freq *freq, char *extra)
333 {
334 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
335
336 freq->m = local->hw.conf.channel->center_freq;
337 freq->e = 6;
338
339 return 0;
340 }
341
342
343 static int ieee80211_ioctl_siwessid(struct net_device *dev,
344 struct iw_request_info *info,
345 struct iw_point *data, char *ssid)
346 {
347 struct ieee80211_sub_if_data *sdata;
348 size_t len = data->length;
349
350 /* iwconfig uses nul termination in SSID.. */
351 if (len > 0 && ssid[len - 1] == '\0')
352 len--;
353
354 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
355 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
356 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
357 int ret;
358 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
359 if (len > IEEE80211_MAX_SSID_LEN)
360 return -EINVAL;
361 memcpy(sdata->u.sta.ssid, ssid, len);
362 sdata->u.sta.ssid_len = len;
363 return 0;
364 }
365 if (data->flags)
366 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
367 else
368 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
369 ret = ieee80211_sta_set_ssid(dev, ssid, len);
370 if (ret)
371 return ret;
372 ieee80211_sta_req_auth(dev, &sdata->u.sta);
373 return 0;
374 }
375
376 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
377 memcpy(sdata->u.ap.ssid, ssid, len);
378 memset(sdata->u.ap.ssid + len, 0,
379 IEEE80211_MAX_SSID_LEN - len);
380 sdata->u.ap.ssid_len = len;
381 return ieee80211_if_config(dev);
382 }
383 return -EOPNOTSUPP;
384 }
385
386
387 static int ieee80211_ioctl_giwessid(struct net_device *dev,
388 struct iw_request_info *info,
389 struct iw_point *data, char *ssid)
390 {
391 size_t len;
392
393 struct ieee80211_sub_if_data *sdata;
394 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
395 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
396 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
397 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
398 if (res == 0) {
399 data->length = len;
400 data->flags = 1;
401 } else
402 data->flags = 0;
403 return res;
404 }
405
406 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
407 len = sdata->u.ap.ssid_len;
408 if (len > IW_ESSID_MAX_SIZE)
409 len = IW_ESSID_MAX_SIZE;
410 memcpy(ssid, sdata->u.ap.ssid, len);
411 data->length = len;
412 data->flags = 1;
413 return 0;
414 }
415 return -EOPNOTSUPP;
416 }
417
418
419 static int ieee80211_ioctl_siwap(struct net_device *dev,
420 struct iw_request_info *info,
421 struct sockaddr *ap_addr, char *extra)
422 {
423 struct ieee80211_sub_if_data *sdata;
424
425 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
426 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
427 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
428 int ret;
429 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
430 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
431 ETH_ALEN);
432 return 0;
433 }
434 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
435 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
436 IEEE80211_STA_AUTO_CHANNEL_SEL;
437 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
438 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
439 else
440 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
441 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
442 if (ret)
443 return ret;
444 ieee80211_sta_req_auth(dev, &sdata->u.sta);
445 return 0;
446 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
447 /*
448 * If it is necessary to update the WDS peer address
449 * while the interface is running, then we need to do
450 * more work here, namely if it is running we need to
451 * add a new and remove the old STA entry, this is
452 * normally handled by _open() and _stop().
453 */
454 if (netif_running(dev))
455 return -EBUSY;
456
457 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
458 ETH_ALEN);
459
460 return 0;
461 }
462
463 return -EOPNOTSUPP;
464 }
465
466
467 static int ieee80211_ioctl_giwap(struct net_device *dev,
468 struct iw_request_info *info,
469 struct sockaddr *ap_addr, char *extra)
470 {
471 struct ieee80211_sub_if_data *sdata;
472
473 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
474 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
475 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
476 ap_addr->sa_family = ARPHRD_ETHER;
477 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
478 return 0;
479 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
480 ap_addr->sa_family = ARPHRD_ETHER;
481 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
482 return 0;
483 }
484
485 return -EOPNOTSUPP;
486 }
487
488
489 static int ieee80211_ioctl_siwscan(struct net_device *dev,
490 struct iw_request_info *info,
491 union iwreq_data *wrqu, char *extra)
492 {
493 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
494 struct iw_scan_req *req = NULL;
495 u8 *ssid = NULL;
496 size_t ssid_len = 0;
497
498 if (!netif_running(dev))
499 return -ENETDOWN;
500
501 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
502 sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
503 sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
504 sdata->vif.type != IEEE80211_IF_TYPE_AP)
505 return -EOPNOTSUPP;
506
507 /* if SSID was specified explicitly then use that */
508 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
509 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
510 req = (struct iw_scan_req *)extra;
511 ssid = req->essid;
512 ssid_len = req->essid_len;
513 }
514
515 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
516 }
517
518
519 static int ieee80211_ioctl_giwscan(struct net_device *dev,
520 struct iw_request_info *info,
521 struct iw_point *data, char *extra)
522 {
523 int res;
524 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
525
526 if (local->sta_sw_scanning || local->sta_hw_scanning)
527 return -EAGAIN;
528
529 res = ieee80211_sta_scan_results(dev, extra, data->length);
530 if (res >= 0) {
531 data->length = res;
532 return 0;
533 }
534 data->length = 0;
535 return res;
536 }
537
538
539 static int ieee80211_ioctl_siwrate(struct net_device *dev,
540 struct iw_request_info *info,
541 struct iw_param *rate, char *extra)
542 {
543 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
544 int i, err = -EINVAL;
545 u32 target_rate = rate->value / 100000;
546 struct ieee80211_sub_if_data *sdata;
547 struct ieee80211_supported_band *sband;
548
549 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
550 if (!sdata->bss)
551 return -ENODEV;
552
553 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
554
555 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
556 * target_rate = X, rate->fixed = 1 means only rate X
557 * target_rate = X, rate->fixed = 0 means all rates <= X */
558 sdata->bss->max_ratectrl_rateidx = -1;
559 sdata->bss->force_unicast_rateidx = -1;
560 if (rate->value < 0)
561 return 0;
562
563 for (i=0; i< sband->n_bitrates; i++) {
564 struct ieee80211_rate *brate = &sband->bitrates[i];
565 int this_rate = brate->bitrate;
566
567 if (target_rate == this_rate) {
568 sdata->bss->max_ratectrl_rateidx = i;
569 if (rate->fixed)
570 sdata->bss->force_unicast_rateidx = i;
571 err = 0;
572 break;
573 }
574 }
575 return err;
576 }
577
578 static int ieee80211_ioctl_giwrate(struct net_device *dev,
579 struct iw_request_info *info,
580 struct iw_param *rate, char *extra)
581 {
582 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
583 struct sta_info *sta;
584 struct ieee80211_sub_if_data *sdata;
585 struct ieee80211_supported_band *sband;
586
587 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
588
589 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
590 sta = sta_info_get(local, sdata->u.sta.bssid);
591 else
592 return -EOPNOTSUPP;
593 if (!sta)
594 return -ENODEV;
595
596 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
597
598 if (sta->txrate_idx < sband->n_bitrates)
599 rate->value = sband->bitrates[sta->txrate_idx].bitrate;
600 else
601 rate->value = 0;
602 rate->value *= 100000;
603
604 return 0;
605 }
606
607 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
608 struct iw_request_info *info,
609 union iwreq_data *data, char *extra)
610 {
611 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
612 bool need_reconfig = 0;
613 int new_power_level;
614
615 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
616 return -EINVAL;
617 if (data->txpower.flags & IW_TXPOW_RANGE)
618 return -EINVAL;
619
620 if (data->txpower.fixed) {
621 new_power_level = data->txpower.value;
622 } else {
623 /*
624 * Automatic power level. Use maximum power for the current
625 * channel. Should be part of rate control.
626 */
627 struct ieee80211_channel* chan = local->hw.conf.channel;
628 if (!chan)
629 return -EINVAL;
630
631 new_power_level = chan->max_power;
632 }
633
634 if (local->hw.conf.power_level != new_power_level) {
635 local->hw.conf.power_level = new_power_level;
636 need_reconfig = 1;
637 }
638
639 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
640 local->hw.conf.radio_enabled = !(data->txpower.disabled);
641 need_reconfig = 1;
642 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
643 }
644
645 if (need_reconfig) {
646 ieee80211_hw_config(local);
647 /* The return value of hw_config is not of big interest here,
648 * as it doesn't say that it failed because of _this_ config
649 * change or something else. Ignore it. */
650 }
651
652 return 0;
653 }
654
655 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
656 struct iw_request_info *info,
657 union iwreq_data *data, char *extra)
658 {
659 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
660
661 data->txpower.fixed = 1;
662 data->txpower.disabled = !(local->hw.conf.radio_enabled);
663 data->txpower.value = local->hw.conf.power_level;
664 data->txpower.flags = IW_TXPOW_DBM;
665
666 return 0;
667 }
668
669 static int ieee80211_ioctl_siwrts(struct net_device *dev,
670 struct iw_request_info *info,
671 struct iw_param *rts, char *extra)
672 {
673 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
674
675 if (rts->disabled)
676 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
677 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
678 return -EINVAL;
679 else
680 local->rts_threshold = rts->value;
681
682 /* If the wlan card performs RTS/CTS in hardware/firmware,
683 * configure it here */
684
685 if (local->ops->set_rts_threshold)
686 local->ops->set_rts_threshold(local_to_hw(local),
687 local->rts_threshold);
688
689 return 0;
690 }
691
692 static int ieee80211_ioctl_giwrts(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 rts->value = local->rts_threshold;
699 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
700 rts->fixed = 1;
701
702 return 0;
703 }
704
705
706 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
707 struct iw_request_info *info,
708 struct iw_param *frag, char *extra)
709 {
710 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
711
712 if (frag->disabled)
713 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
714 else if (frag->value < 256 ||
715 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
716 return -EINVAL;
717 else {
718 /* Fragment length must be even, so strip LSB. */
719 local->fragmentation_threshold = frag->value & ~0x1;
720 }
721
722 /* If the wlan card performs fragmentation in hardware/firmware,
723 * configure it here */
724
725 if (local->ops->set_frag_threshold)
726 local->ops->set_frag_threshold(
727 local_to_hw(local),
728 local->fragmentation_threshold);
729
730 return 0;
731 }
732
733 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
734 struct iw_request_info *info,
735 struct iw_param *frag, char *extra)
736 {
737 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
738
739 frag->value = local->fragmentation_threshold;
740 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
741 frag->fixed = 1;
742
743 return 0;
744 }
745
746
747 static int ieee80211_ioctl_siwretry(struct net_device *dev,
748 struct iw_request_info *info,
749 struct iw_param *retry, char *extra)
750 {
751 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
752
753 if (retry->disabled ||
754 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
755 return -EINVAL;
756
757 if (retry->flags & IW_RETRY_MAX)
758 local->long_retry_limit = retry->value;
759 else if (retry->flags & IW_RETRY_MIN)
760 local->short_retry_limit = retry->value;
761 else {
762 local->long_retry_limit = retry->value;
763 local->short_retry_limit = retry->value;
764 }
765
766 if (local->ops->set_retry_limit) {
767 return local->ops->set_retry_limit(
768 local_to_hw(local),
769 local->short_retry_limit,
770 local->long_retry_limit);
771 }
772
773 return 0;
774 }
775
776
777 static int ieee80211_ioctl_giwretry(struct net_device *dev,
778 struct iw_request_info *info,
779 struct iw_param *retry, char *extra)
780 {
781 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
782
783 retry->disabled = 0;
784 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
785 /* first return min value, iwconfig will ask max value
786 * later if needed */
787 retry->flags |= IW_RETRY_LIMIT;
788 retry->value = local->short_retry_limit;
789 if (local->long_retry_limit != local->short_retry_limit)
790 retry->flags |= IW_RETRY_MIN;
791 return 0;
792 }
793 if (retry->flags & IW_RETRY_MAX) {
794 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
795 retry->value = local->long_retry_limit;
796 }
797
798 return 0;
799 }
800
801 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
802 struct iw_request_info *info,
803 struct iw_point *data, char *extra)
804 {
805 struct ieee80211_sub_if_data *sdata;
806 struct iw_mlme *mlme = (struct iw_mlme *) extra;
807
808 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
809 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
810 sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
811 return -EINVAL;
812
813 switch (mlme->cmd) {
814 case IW_MLME_DEAUTH:
815 /* TODO: mlme->addr.sa_data */
816 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
817 case IW_MLME_DISASSOC:
818 /* TODO: mlme->addr.sa_data */
819 return ieee80211_sta_disassociate(dev, mlme->reason_code);
820 default:
821 return -EOPNOTSUPP;
822 }
823 }
824
825
826 static int ieee80211_ioctl_siwencode(struct net_device *dev,
827 struct iw_request_info *info,
828 struct iw_point *erq, char *keybuf)
829 {
830 struct ieee80211_sub_if_data *sdata;
831 int idx, i, alg = ALG_WEP;
832 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
833 int remove = 0;
834
835 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
836
837 idx = erq->flags & IW_ENCODE_INDEX;
838 if (idx == 0) {
839 if (sdata->default_key)
840 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
841 if (sdata->default_key == sdata->keys[i]) {
842 idx = i;
843 break;
844 }
845 }
846 } else if (idx < 1 || idx > 4)
847 return -EINVAL;
848 else
849 idx--;
850
851 if (erq->flags & IW_ENCODE_DISABLED)
852 remove = 1;
853 else if (erq->length == 0) {
854 /* No key data - just set the default TX key index */
855 ieee80211_set_default_key(sdata, idx);
856 return 0;
857 }
858
859 return ieee80211_set_encryption(
860 dev, bcaddr,
861 idx, alg, remove,
862 !sdata->default_key,
863 keybuf, erq->length);
864 }
865
866
867 static int ieee80211_ioctl_giwencode(struct net_device *dev,
868 struct iw_request_info *info,
869 struct iw_point *erq, char *key)
870 {
871 struct ieee80211_sub_if_data *sdata;
872 int idx, i;
873
874 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
875
876 idx = erq->flags & IW_ENCODE_INDEX;
877 if (idx < 1 || idx > 4) {
878 idx = -1;
879 if (!sdata->default_key)
880 idx = 0;
881 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
882 if (sdata->default_key == sdata->keys[i]) {
883 idx = i;
884 break;
885 }
886 }
887 if (idx < 0)
888 return -EINVAL;
889 } else
890 idx--;
891
892 erq->flags = idx + 1;
893
894 if (!sdata->keys[idx]) {
895 erq->length = 0;
896 erq->flags |= IW_ENCODE_DISABLED;
897 return 0;
898 }
899
900 memcpy(key, sdata->keys[idx]->conf.key,
901 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
902 erq->length = sdata->keys[idx]->conf.keylen;
903 erq->flags |= IW_ENCODE_ENABLED;
904
905 return 0;
906 }
907
908 static int ieee80211_ioctl_siwauth(struct net_device *dev,
909 struct iw_request_info *info,
910 struct iw_param *data, char *extra)
911 {
912 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
913 int ret = 0;
914
915 switch (data->flags & IW_AUTH_INDEX) {
916 case IW_AUTH_WPA_VERSION:
917 case IW_AUTH_CIPHER_PAIRWISE:
918 case IW_AUTH_CIPHER_GROUP:
919 case IW_AUTH_WPA_ENABLED:
920 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
921 case IW_AUTH_KEY_MGMT:
922 break;
923 case IW_AUTH_DROP_UNENCRYPTED:
924 sdata->drop_unencrypted = !!data->value;
925 break;
926 case IW_AUTH_PRIVACY_INVOKED:
927 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
928 ret = -EINVAL;
929 else {
930 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
931 /*
932 * Privacy invoked by wpa_supplicant, store the
933 * value and allow associating to a protected
934 * network without having a key up front.
935 */
936 if (data->value)
937 sdata->u.sta.flags |=
938 IEEE80211_STA_PRIVACY_INVOKED;
939 }
940 break;
941 case IW_AUTH_80211_AUTH_ALG:
942 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
943 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
944 sdata->u.sta.auth_algs = data->value;
945 else
946 ret = -EOPNOTSUPP;
947 break;
948 default:
949 ret = -EOPNOTSUPP;
950 break;
951 }
952 return ret;
953 }
954
955 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
956 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
957 {
958 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
959 struct iw_statistics *wstats = &local->wstats;
960 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
961 struct sta_info *sta = NULL;
962
963 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
964 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
965 sta = sta_info_get(local, sdata->u.sta.bssid);
966 if (!sta) {
967 wstats->discard.fragment = 0;
968 wstats->discard.misc = 0;
969 wstats->qual.qual = 0;
970 wstats->qual.level = 0;
971 wstats->qual.noise = 0;
972 wstats->qual.updated = IW_QUAL_ALL_INVALID;
973 } else {
974 wstats->qual.level = sta->last_rssi;
975 wstats->qual.qual = sta->last_signal;
976 wstats->qual.noise = sta->last_noise;
977 wstats->qual.updated = local->wstats_flags;
978 }
979 return wstats;
980 }
981
982 static int ieee80211_ioctl_giwauth(struct net_device *dev,
983 struct iw_request_info *info,
984 struct iw_param *data, char *extra)
985 {
986 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
987 int ret = 0;
988
989 switch (data->flags & IW_AUTH_INDEX) {
990 case IW_AUTH_80211_AUTH_ALG:
991 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
992 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
993 data->value = sdata->u.sta.auth_algs;
994 else
995 ret = -EOPNOTSUPP;
996 break;
997 default:
998 ret = -EOPNOTSUPP;
999 break;
1000 }
1001 return ret;
1002 }
1003
1004
1005 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1006 struct iw_request_info *info,
1007 struct iw_point *erq, char *extra)
1008 {
1009 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1010 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1011 int uninitialized_var(alg), idx, i, remove = 0;
1012
1013 switch (ext->alg) {
1014 case IW_ENCODE_ALG_NONE:
1015 remove = 1;
1016 break;
1017 case IW_ENCODE_ALG_WEP:
1018 alg = ALG_WEP;
1019 break;
1020 case IW_ENCODE_ALG_TKIP:
1021 alg = ALG_TKIP;
1022 break;
1023 case IW_ENCODE_ALG_CCMP:
1024 alg = ALG_CCMP;
1025 break;
1026 default:
1027 return -EOPNOTSUPP;
1028 }
1029
1030 if (erq->flags & IW_ENCODE_DISABLED)
1031 remove = 1;
1032
1033 idx = erq->flags & IW_ENCODE_INDEX;
1034 if (idx < 1 || idx > 4) {
1035 idx = -1;
1036 if (!sdata->default_key)
1037 idx = 0;
1038 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1039 if (sdata->default_key == sdata->keys[i]) {
1040 idx = i;
1041 break;
1042 }
1043 }
1044 if (idx < 0)
1045 return -EINVAL;
1046 } else
1047 idx--;
1048
1049 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1050 remove,
1051 ext->ext_flags &
1052 IW_ENCODE_EXT_SET_TX_KEY,
1053 ext->key, ext->key_len);
1054 }
1055
1056
1057 /* Structures to export the Wireless Handlers */
1058
1059 static const iw_handler ieee80211_handler[] =
1060 {
1061 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1062 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1063 (iw_handler) NULL, /* SIOCSIWNWID */
1064 (iw_handler) NULL, /* SIOCGIWNWID */
1065 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1066 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1067 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1068 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1069 (iw_handler) NULL, /* SIOCSIWSENS */
1070 (iw_handler) NULL, /* SIOCGIWSENS */
1071 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1072 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1073 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1074 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1075 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1076 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1077 (iw_handler) NULL, /* SIOCSIWSPY */
1078 (iw_handler) NULL, /* SIOCGIWSPY */
1079 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1080 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1081 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1082 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1083 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1084 (iw_handler) NULL, /* SIOCGIWAPLIST */
1085 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1086 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1087 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1088 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1089 (iw_handler) NULL, /* SIOCSIWNICKN */
1090 (iw_handler) NULL, /* SIOCGIWNICKN */
1091 (iw_handler) NULL, /* -- hole -- */
1092 (iw_handler) NULL, /* -- hole -- */
1093 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1094 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1095 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1096 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1097 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1098 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1099 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1100 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1101 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1102 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1103 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1104 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1105 (iw_handler) NULL, /* SIOCSIWPOWER */
1106 (iw_handler) NULL, /* SIOCGIWPOWER */
1107 (iw_handler) NULL, /* -- hole -- */
1108 (iw_handler) NULL, /* -- hole -- */
1109 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1110 (iw_handler) NULL, /* SIOCGIWGENIE */
1111 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1112 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1113 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1114 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1115 (iw_handler) NULL, /* SIOCSIWPMKSA */
1116 (iw_handler) NULL, /* -- hole -- */
1117 };
1118
1119 const struct iw_handler_def ieee80211_iw_handler_def =
1120 {
1121 .num_standard = ARRAY_SIZE(ieee80211_handler),
1122 .standard = (iw_handler *) ieee80211_handler,
1123 .get_wireless_stats = ieee80211_get_wireless_stats,
1124 };
kernel source for telekom puls (alcatel/mediatek)