aboutsummaryrefslogtreecommitdiffstats
path: root/net/mac80211/wext.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/wext.c')
-rw-r--r--net/mac80211/wext.c1144
1 files changed, 1144 insertions, 0 deletions
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
new file mode 100644
index 000000000000..69aed16faff3
--- /dev/null
+++ b/net/mac80211/wext.c
@@ -0,0 +1,1144 @@
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
30static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr,
31 int idx, int alg, int remove,
32 int set_tx_key, const u8 *_key,
33 size_t key_len)
34{
35 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
36 struct sta_info *sta;
37 struct ieee80211_key *key;
38 struct ieee80211_sub_if_data *sdata;
39 int err;
40
41 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
42
43 if (idx < 0 || idx >= NUM_DEFAULT_KEYS) {
44 printk(KERN_DEBUG "%s: set_encrypt - invalid idx=%d\n",
45 dev->name, idx);
46 return -EINVAL;
47 }
48
49 if (remove) {
50 rcu_read_lock();
51
52 err = 0;
53
54 if (is_broadcast_ether_addr(sta_addr)) {
55 key = sdata->keys[idx];
56 } else {
57 sta = sta_info_get(local, sta_addr);
58 if (!sta) {
59 err = -ENOENT;
60 goto out_unlock;
61 }
62 key = sta->key;
63 }
64
65 ieee80211_key_free(key);
66 } else {
67 key = ieee80211_key_alloc(alg, idx, key_len, _key);
68 if (!key)
69 return -ENOMEM;
70
71 sta = NULL;
72 err = 0;
73
74 rcu_read_lock();
75
76 if (!is_broadcast_ether_addr(sta_addr)) {
77 set_tx_key = 0;
78 /*
79 * According to the standard, the key index of a
80 * pairwise key must be zero. However, some AP are
81 * broken when it comes to WEP key indices, so we
82 * work around this.
83 */
84 if (idx != 0 && alg != ALG_WEP) {
85 ieee80211_key_free(key);
86 err = -EINVAL;
87 goto out_unlock;
88 }
89
90 sta = sta_info_get(local, sta_addr);
91 if (!sta) {
92 ieee80211_key_free(key);
93 err = -ENOENT;
94 goto out_unlock;
95 }
96 }
97
98 ieee80211_key_link(key, sdata, sta);
99
100 if (set_tx_key || (!sta && !sdata->default_key && key))
101 ieee80211_set_default_key(sdata, idx);
102 }
103
104 out_unlock:
105 rcu_read_unlock();
106
107 return err;
108}
109
110static int ieee80211_ioctl_siwgenie(struct net_device *dev,
111 struct iw_request_info *info,
112 struct iw_point *data, char *extra)
113{
114 struct ieee80211_sub_if_data *sdata;
115
116 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
117
118 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME)
119 return -EOPNOTSUPP;
120
121 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
122 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
123 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
124 if (ret)
125 return ret;
126 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
127 ieee80211_sta_req_auth(dev, &sdata->u.sta);
128 return 0;
129 }
130
131 return -EOPNOTSUPP;
132}
133
134static int ieee80211_ioctl_giwname(struct net_device *dev,
135 struct iw_request_info *info,
136 char *name, char *extra)
137{
138 strcpy(name, "IEEE 802.11");
139
140 return 0;
141}
142
143
144static int ieee80211_ioctl_giwrange(struct net_device *dev,
145 struct iw_request_info *info,
146 struct iw_point *data, char *extra)
147{
148 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
149 struct iw_range *range = (struct iw_range *) extra;
150 enum ieee80211_band band;
151 int c = 0;
152
153 data->length = sizeof(struct iw_range);
154 memset(range, 0, sizeof(struct iw_range));
155
156 range->we_version_compiled = WIRELESS_EXT;
157 range->we_version_source = 21;
158 range->retry_capa = IW_RETRY_LIMIT;
159 range->retry_flags = IW_RETRY_LIMIT;
160 range->min_retry = 0;
161 range->max_retry = 255;
162 range->min_rts = 0;
163 range->max_rts = 2347;
164 range->min_frag = 256;
165 range->max_frag = 2346;
166
167 range->encoding_size[0] = 5;
168 range->encoding_size[1] = 13;
169 range->num_encoding_sizes = 2;
170 range->max_encoding_tokens = NUM_DEFAULT_KEYS;
171
172 range->max_qual.qual = local->hw.max_signal;
173 range->max_qual.level = local->hw.max_rssi;
174 range->max_qual.noise = local->hw.max_noise;
175 range->max_qual.updated = local->wstats_flags;
176
177 range->avg_qual.qual = local->hw.max_signal/2;
178 range->avg_qual.level = 0;
179 range->avg_qual.noise = 0;
180 range->avg_qual.updated = local->wstats_flags;
181
182 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
183 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
184
185
186 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
187 int i;
188 struct ieee80211_supported_band *sband;
189
190 sband = local->hw.wiphy->bands[band];
191
192 if (!sband)
193 continue;
194
195 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
196 struct ieee80211_channel *chan = &sband->channels[i];
197
198 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
199 range->freq[c].i =
200 ieee80211_frequency_to_channel(
201 chan->center_freq);
202 range->freq[c].m = chan->center_freq;
203 range->freq[c].e = 6;
204 c++;
205 }
206 }
207 }
208 range->num_channels = c;
209 range->num_frequency = c;
210
211 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
212 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
213 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
214 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
215
216 range->scan_capa |= IW_SCAN_CAPA_ESSID;
217
218 return 0;
219}
220
221
222static int ieee80211_ioctl_siwmode(struct net_device *dev,
223 struct iw_request_info *info,
224 __u32 *mode, char *extra)
225{
226 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
227 int type;
228
229 if (sdata->vif.type == IEEE80211_IF_TYPE_VLAN)
230 return -EOPNOTSUPP;
231
232 switch (*mode) {
233 case IW_MODE_INFRA:
234 type = IEEE80211_IF_TYPE_STA;
235 break;
236 case IW_MODE_ADHOC:
237 type = IEEE80211_IF_TYPE_IBSS;
238 break;
239 case IW_MODE_MONITOR:
240 type = IEEE80211_IF_TYPE_MNTR;
241 break;
242 default:
243 return -EINVAL;
244 }
245
246 if (type == sdata->vif.type)
247 return 0;
248 if (netif_running(dev))
249 return -EBUSY;
250
251 ieee80211_if_reinit(dev);
252 ieee80211_if_set_type(dev, type);
253
254 return 0;
255}
256
257
258static int ieee80211_ioctl_giwmode(struct net_device *dev,
259 struct iw_request_info *info,
260 __u32 *mode, char *extra)
261{
262 struct ieee80211_sub_if_data *sdata;
263
264 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
265 switch (sdata->vif.type) {
266 case IEEE80211_IF_TYPE_AP:
267 *mode = IW_MODE_MASTER;
268 break;
269 case IEEE80211_IF_TYPE_STA:
270 *mode = IW_MODE_INFRA;
271 break;
272 case IEEE80211_IF_TYPE_IBSS:
273 *mode = IW_MODE_ADHOC;
274 break;
275 case IEEE80211_IF_TYPE_MNTR:
276 *mode = IW_MODE_MONITOR;
277 break;
278 case IEEE80211_IF_TYPE_WDS:
279 *mode = IW_MODE_REPEAT;
280 break;
281 case IEEE80211_IF_TYPE_VLAN:
282 *mode = IW_MODE_SECOND; /* FIXME */
283 break;
284 default:
285 *mode = IW_MODE_AUTO;
286 break;
287 }
288 return 0;
289}
290
291int ieee80211_set_freq(struct ieee80211_local *local, int freqMHz)
292{
293 int ret = -EINVAL;
294 struct ieee80211_channel *chan;
295
296 chan = ieee80211_get_channel(local->hw.wiphy, freqMHz);
297
298 if (chan && !(chan->flags & IEEE80211_CHAN_DISABLED)) {
299 local->oper_channel = chan;
300
301 if (local->sta_sw_scanning || local->sta_hw_scanning)
302 ret = 0;
303 else
304 ret = ieee80211_hw_config(local);
305
306 rate_control_clear(local);
307 }
308
309 return ret;
310}
311
312static int ieee80211_ioctl_siwfreq(struct net_device *dev,
313 struct iw_request_info *info,
314 struct iw_freq *freq, char *extra)
315{
316 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
317 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
318
319 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
320 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
321
322 /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
323 if (freq->e == 0) {
324 if (freq->m < 0) {
325 if (sdata->vif.type == IEEE80211_IF_TYPE_STA)
326 sdata->u.sta.flags |=
327 IEEE80211_STA_AUTO_CHANNEL_SEL;
328 return 0;
329 } else
330 return ieee80211_set_freq(local,
331 ieee80211_channel_to_frequency(freq->m));
332 } else {
333 int i, div = 1000000;
334 for (i = 0; i < freq->e; i++)
335 div /= 10;
336 if (div > 0)
337 return ieee80211_set_freq(local, freq->m / div);
338 else
339 return -EINVAL;
340 }
341}
342
343
344static int ieee80211_ioctl_giwfreq(struct net_device *dev,
345 struct iw_request_info *info,
346 struct iw_freq *freq, char *extra)
347{
348 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
349
350 freq->m = local->hw.conf.channel->center_freq;
351 freq->e = 6;
352
353 return 0;
354}
355
356
357static int ieee80211_ioctl_siwessid(struct net_device *dev,
358 struct iw_request_info *info,
359 struct iw_point *data, char *ssid)
360{
361 struct ieee80211_sub_if_data *sdata;
362 size_t len = data->length;
363
364 /* iwconfig uses nul termination in SSID.. */
365 if (len > 0 && ssid[len - 1] == '\0')
366 len--;
367
368 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
369 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
370 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
371 int ret;
372 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
373 if (len > IEEE80211_MAX_SSID_LEN)
374 return -EINVAL;
375 memcpy(sdata->u.sta.ssid, ssid, len);
376 sdata->u.sta.ssid_len = len;
377 return 0;
378 }
379 if (data->flags)
380 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
381 else
382 sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
383 ret = ieee80211_sta_set_ssid(dev, ssid, len);
384 if (ret)
385 return ret;
386 ieee80211_sta_req_auth(dev, &sdata->u.sta);
387 return 0;
388 }
389
390 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
391 memcpy(sdata->u.ap.ssid, ssid, len);
392 memset(sdata->u.ap.ssid + len, 0,
393 IEEE80211_MAX_SSID_LEN - len);
394 sdata->u.ap.ssid_len = len;
395 return ieee80211_if_config(dev);
396 }
397 return -EOPNOTSUPP;
398}
399
400
401static int ieee80211_ioctl_giwessid(struct net_device *dev,
402 struct iw_request_info *info,
403 struct iw_point *data, char *ssid)
404{
405 size_t len;
406
407 struct ieee80211_sub_if_data *sdata;
408 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
409 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
410 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
411 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
412 if (res == 0) {
413 data->length = len;
414 data->flags = 1;
415 } else
416 data->flags = 0;
417 return res;
418 }
419
420 if (sdata->vif.type == IEEE80211_IF_TYPE_AP) {
421 len = sdata->u.ap.ssid_len;
422 if (len > IW_ESSID_MAX_SIZE)
423 len = IW_ESSID_MAX_SIZE;
424 memcpy(ssid, sdata->u.ap.ssid, len);
425 data->length = len;
426 data->flags = 1;
427 return 0;
428 }
429 return -EOPNOTSUPP;
430}
431
432
433static int ieee80211_ioctl_siwap(struct net_device *dev,
434 struct iw_request_info *info,
435 struct sockaddr *ap_addr, char *extra)
436{
437 struct ieee80211_sub_if_data *sdata;
438
439 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
440 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
441 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
442 int ret;
443 if (sdata->flags & IEEE80211_SDATA_USERSPACE_MLME) {
444 memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
445 ETH_ALEN);
446 return 0;
447 }
448 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
449 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
450 IEEE80211_STA_AUTO_CHANNEL_SEL;
451 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
452 sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
453 else
454 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
455 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
456 if (ret)
457 return ret;
458 ieee80211_sta_req_auth(dev, &sdata->u.sta);
459 return 0;
460 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
461 /*
462 * If it is necessary to update the WDS peer address
463 * while the interface is running, then we need to do
464 * more work here, namely if it is running we need to
465 * add a new and remove the old STA entry, this is
466 * normally handled by _open() and _stop().
467 */
468 if (netif_running(dev))
469 return -EBUSY;
470
471 memcpy(&sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
472 ETH_ALEN);
473
474 return 0;
475 }
476
477 return -EOPNOTSUPP;
478}
479
480
481static int ieee80211_ioctl_giwap(struct net_device *dev,
482 struct iw_request_info *info,
483 struct sockaddr *ap_addr, char *extra)
484{
485 struct ieee80211_sub_if_data *sdata;
486
487 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
488 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
489 sdata->vif.type == IEEE80211_IF_TYPE_IBSS) {
490 ap_addr->sa_family = ARPHRD_ETHER;
491 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
492 return 0;
493 } else if (sdata->vif.type == IEEE80211_IF_TYPE_WDS) {
494 ap_addr->sa_family = ARPHRD_ETHER;
495 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
496 return 0;
497 }
498
499 return -EOPNOTSUPP;
500}
501
502
503static int ieee80211_ioctl_siwscan(struct net_device *dev,
504 struct iw_request_info *info,
505 union iwreq_data *wrqu, char *extra)
506{
507 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
508 struct iw_scan_req *req = NULL;
509 u8 *ssid = NULL;
510 size_t ssid_len = 0;
511
512 if (!netif_running(dev))
513 return -ENETDOWN;
514
515 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
516 sdata->vif.type != IEEE80211_IF_TYPE_IBSS &&
517 sdata->vif.type != IEEE80211_IF_TYPE_MESH_POINT &&
518 sdata->vif.type != IEEE80211_IF_TYPE_AP)
519 return -EOPNOTSUPP;
520
521 /* if SSID was specified explicitly then use that */
522 if (wrqu->data.length == sizeof(struct iw_scan_req) &&
523 wrqu->data.flags & IW_SCAN_THIS_ESSID) {
524 req = (struct iw_scan_req *)extra;
525 ssid = req->essid;
526 ssid_len = req->essid_len;
527 }
528
529 return ieee80211_sta_req_scan(dev, ssid, ssid_len);
530}
531
532
533static int ieee80211_ioctl_giwscan(struct net_device *dev,
534 struct iw_request_info *info,
535 struct iw_point *data, char *extra)
536{
537 int res;
538 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
539
540 if (local->sta_sw_scanning || local->sta_hw_scanning)
541 return -EAGAIN;
542
543 res = ieee80211_sta_scan_results(dev, extra, data->length);
544 if (res >= 0) {
545 data->length = res;
546 return 0;
547 }
548 data->length = 0;
549 return res;
550}
551
552
553static int ieee80211_ioctl_siwrate(struct net_device *dev,
554 struct iw_request_info *info,
555 struct iw_param *rate, char *extra)
556{
557 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
558 int i, err = -EINVAL;
559 u32 target_rate = rate->value / 100000;
560 struct ieee80211_sub_if_data *sdata;
561 struct ieee80211_supported_band *sband;
562
563 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
564 if (!sdata->bss)
565 return -ENODEV;
566
567 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
568
569 /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
570 * target_rate = X, rate->fixed = 1 means only rate X
571 * target_rate = X, rate->fixed = 0 means all rates <= X */
572 sdata->bss->max_ratectrl_rateidx = -1;
573 sdata->bss->force_unicast_rateidx = -1;
574 if (rate->value < 0)
575 return 0;
576
577 for (i=0; i< sband->n_bitrates; i++) {
578 struct ieee80211_rate *brate = &sband->bitrates[i];
579 int this_rate = brate->bitrate;
580
581 if (target_rate == this_rate) {
582 sdata->bss->max_ratectrl_rateidx = i;
583 if (rate->fixed)
584 sdata->bss->force_unicast_rateidx = i;
585 err = 0;
586 break;
587 }
588 }
589 return err;
590}
591
592static int ieee80211_ioctl_giwrate(struct net_device *dev,
593 struct iw_request_info *info,
594 struct iw_param *rate, char *extra)
595{
596 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
597 struct sta_info *sta;
598 struct ieee80211_sub_if_data *sdata;
599 struct ieee80211_supported_band *sband;
600
601 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
602
603 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
604 return -EOPNOTSUPP;
605
606 sband = local->hw.wiphy->bands[local->hw.conf.channel->band];
607
608 rcu_read_lock();
609
610 sta = sta_info_get(local, sdata->u.sta.bssid);
611
612 if (sta && sta->txrate_idx < sband->n_bitrates)
613 rate->value = sband->bitrates[sta->txrate_idx].bitrate;
614 else
615 rate->value = 0;
616
617 rcu_read_unlock();
618
619 if (!sta)
620 return -ENODEV;
621
622 rate->value *= 100000;
623
624 return 0;
625}
626
627static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
628 struct iw_request_info *info,
629 union iwreq_data *data, char *extra)
630{
631 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
632 bool need_reconfig = 0;
633 int new_power_level;
634
635 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
636 return -EINVAL;
637 if (data->txpower.flags & IW_TXPOW_RANGE)
638 return -EINVAL;
639
640 if (data->txpower.fixed) {
641 new_power_level = data->txpower.value;
642 } else {
643 /*
644 * Automatic power level. Use maximum power for the current
645 * channel. Should be part of rate control.
646 */
647 struct ieee80211_channel* chan = local->hw.conf.channel;
648 if (!chan)
649 return -EINVAL;
650
651 new_power_level = chan->max_power;
652 }
653
654 if (local->hw.conf.power_level != new_power_level) {
655 local->hw.conf.power_level = new_power_level;
656 need_reconfig = 1;
657 }
658
659 if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
660 local->hw.conf.radio_enabled = !(data->txpower.disabled);
661 need_reconfig = 1;
662 ieee80211_led_radio(local, local->hw.conf.radio_enabled);
663 }
664
665 if (need_reconfig) {
666 ieee80211_hw_config(local);
667 /* The return value of hw_config is not of big interest here,
668 * as it doesn't say that it failed because of _this_ config
669 * change or something else. Ignore it. */
670 }
671
672 return 0;
673}
674
675static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
676 struct iw_request_info *info,
677 union iwreq_data *data, char *extra)
678{
679 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
680
681 data->txpower.fixed = 1;
682 data->txpower.disabled = !(local->hw.conf.radio_enabled);
683 data->txpower.value = local->hw.conf.power_level;
684 data->txpower.flags = IW_TXPOW_DBM;
685
686 return 0;
687}
688
689static int ieee80211_ioctl_siwrts(struct net_device *dev,
690 struct iw_request_info *info,
691 struct iw_param *rts, char *extra)
692{
693 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
694
695 if (rts->disabled)
696 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
697 else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
698 return -EINVAL;
699 else
700 local->rts_threshold = rts->value;
701
702 /* If the wlan card performs RTS/CTS in hardware/firmware,
703 * configure it here */
704
705 if (local->ops->set_rts_threshold)
706 local->ops->set_rts_threshold(local_to_hw(local),
707 local->rts_threshold);
708
709 return 0;
710}
711
712static int ieee80211_ioctl_giwrts(struct net_device *dev,
713 struct iw_request_info *info,
714 struct iw_param *rts, char *extra)
715{
716 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
717
718 rts->value = local->rts_threshold;
719 rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
720 rts->fixed = 1;
721
722 return 0;
723}
724
725
726static int ieee80211_ioctl_siwfrag(struct net_device *dev,
727 struct iw_request_info *info,
728 struct iw_param *frag, char *extra)
729{
730 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
731
732 if (frag->disabled)
733 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
734 else if (frag->value < 256 ||
735 frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
736 return -EINVAL;
737 else {
738 /* Fragment length must be even, so strip LSB. */
739 local->fragmentation_threshold = frag->value & ~0x1;
740 }
741
742 /* If the wlan card performs fragmentation in hardware/firmware,
743 * configure it here */
744
745 if (local->ops->set_frag_threshold)
746 local->ops->set_frag_threshold(
747 local_to_hw(local),
748 local->fragmentation_threshold);
749
750 return 0;
751}
752
753static int ieee80211_ioctl_giwfrag(struct net_device *dev,
754 struct iw_request_info *info,
755 struct iw_param *frag, char *extra)
756{
757 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
758
759 frag->value = local->fragmentation_threshold;
760 frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
761 frag->fixed = 1;
762
763 return 0;
764}
765
766
767static int ieee80211_ioctl_siwretry(struct net_device *dev,
768 struct iw_request_info *info,
769 struct iw_param *retry, char *extra)
770{
771 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
772
773 if (retry->disabled ||
774 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
775 return -EINVAL;
776
777 if (retry->flags & IW_RETRY_MAX)
778 local->long_retry_limit = retry->value;
779 else if (retry->flags & IW_RETRY_MIN)
780 local->short_retry_limit = retry->value;
781 else {
782 local->long_retry_limit = retry->value;
783 local->short_retry_limit = retry->value;
784 }
785
786 if (local->ops->set_retry_limit) {
787 return local->ops->set_retry_limit(
788 local_to_hw(local),
789 local->short_retry_limit,
790 local->long_retry_limit);
791 }
792
793 return 0;
794}
795
796
797static int ieee80211_ioctl_giwretry(struct net_device *dev,
798 struct iw_request_info *info,
799 struct iw_param *retry, char *extra)
800{
801 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
802
803 retry->disabled = 0;
804 if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
805 /* first return min value, iwconfig will ask max value
806 * later if needed */
807 retry->flags |= IW_RETRY_LIMIT;
808 retry->value = local->short_retry_limit;
809 if (local->long_retry_limit != local->short_retry_limit)
810 retry->flags |= IW_RETRY_MIN;
811 return 0;
812 }
813 if (retry->flags & IW_RETRY_MAX) {
814 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
815 retry->value = local->long_retry_limit;
816 }
817
818 return 0;
819}
820
821static int ieee80211_ioctl_siwmlme(struct net_device *dev,
822 struct iw_request_info *info,
823 struct iw_point *data, char *extra)
824{
825 struct ieee80211_sub_if_data *sdata;
826 struct iw_mlme *mlme = (struct iw_mlme *) extra;
827
828 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
829 if (sdata->vif.type != IEEE80211_IF_TYPE_STA &&
830 sdata->vif.type != IEEE80211_IF_TYPE_IBSS)
831 return -EINVAL;
832
833 switch (mlme->cmd) {
834 case IW_MLME_DEAUTH:
835 /* TODO: mlme->addr.sa_data */
836 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
837 case IW_MLME_DISASSOC:
838 /* TODO: mlme->addr.sa_data */
839 return ieee80211_sta_disassociate(dev, mlme->reason_code);
840 default:
841 return -EOPNOTSUPP;
842 }
843}
844
845
846static int ieee80211_ioctl_siwencode(struct net_device *dev,
847 struct iw_request_info *info,
848 struct iw_point *erq, char *keybuf)
849{
850 struct ieee80211_sub_if_data *sdata;
851 int idx, i, alg = ALG_WEP;
852 u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
853 int remove = 0;
854
855 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
856
857 idx = erq->flags & IW_ENCODE_INDEX;
858 if (idx == 0) {
859 if (sdata->default_key)
860 for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
861 if (sdata->default_key == sdata->keys[i]) {
862 idx = i;
863 break;
864 }
865 }
866 } else if (idx < 1 || idx > 4)
867 return -EINVAL;
868 else
869 idx--;
870
871 if (erq->flags & IW_ENCODE_DISABLED)
872 remove = 1;
873 else if (erq->length == 0) {
874 /* No key data - just set the default TX key index */
875 ieee80211_set_default_key(sdata, idx);
876 return 0;
877 }
878
879 return ieee80211_set_encryption(
880 dev, bcaddr,
881 idx, alg, remove,
882 !sdata->default_key,
883 keybuf, erq->length);
884}
885
886
887static int ieee80211_ioctl_giwencode(struct net_device *dev,
888 struct iw_request_info *info,
889 struct iw_point *erq, char *key)
890{
891 struct ieee80211_sub_if_data *sdata;
892 int idx, i;
893
894 sdata = IEEE80211_DEV_TO_SUB_IF(dev);
895
896 idx = erq->flags & IW_ENCODE_INDEX;
897 if (idx < 1 || idx > 4) {
898 idx = -1;
899 if (!sdata->default_key)
900 idx = 0;
901 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
902 if (sdata->default_key == sdata->keys[i]) {
903 idx = i;
904 break;
905 }
906 }
907 if (idx < 0)
908 return -EINVAL;
909 } else
910 idx--;
911
912 erq->flags = idx + 1;
913
914 if (!sdata->keys[idx]) {
915 erq->length = 0;
916 erq->flags |= IW_ENCODE_DISABLED;
917 return 0;
918 }
919
920 memcpy(key, sdata->keys[idx]->conf.key,
921 min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
922 erq->length = sdata->keys[idx]->conf.keylen;
923 erq->flags |= IW_ENCODE_ENABLED;
924
925 return 0;
926}
927
928static int ieee80211_ioctl_siwauth(struct net_device *dev,
929 struct iw_request_info *info,
930 struct iw_param *data, char *extra)
931{
932 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
933 int ret = 0;
934
935 switch (data->flags & IW_AUTH_INDEX) {
936 case IW_AUTH_WPA_VERSION:
937 case IW_AUTH_CIPHER_PAIRWISE:
938 case IW_AUTH_CIPHER_GROUP:
939 case IW_AUTH_WPA_ENABLED:
940 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
941 case IW_AUTH_KEY_MGMT:
942 break;
943 case IW_AUTH_DROP_UNENCRYPTED:
944 sdata->drop_unencrypted = !!data->value;
945 break;
946 case IW_AUTH_PRIVACY_INVOKED:
947 if (sdata->vif.type != IEEE80211_IF_TYPE_STA)
948 ret = -EINVAL;
949 else {
950 sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED;
951 /*
952 * Privacy invoked by wpa_supplicant, store the
953 * value and allow associating to a protected
954 * network without having a key up front.
955 */
956 if (data->value)
957 sdata->u.sta.flags |=
958 IEEE80211_STA_PRIVACY_INVOKED;
959 }
960 break;
961 case IW_AUTH_80211_AUTH_ALG:
962 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
963 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
964 sdata->u.sta.auth_algs = data->value;
965 else
966 ret = -EOPNOTSUPP;
967 break;
968 default:
969 ret = -EOPNOTSUPP;
970 break;
971 }
972 return ret;
973}
974
975/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
976static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
977{
978 struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
979 struct iw_statistics *wstats = &local->wstats;
980 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
981 struct sta_info *sta = NULL;
982
983 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
984 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
985 sta = sta_info_get(local, sdata->u.sta.bssid);
986 if (!sta) {
987 wstats->discard.fragment = 0;
988 wstats->discard.misc = 0;
989 wstats->qual.qual = 0;
990 wstats->qual.level = 0;
991 wstats->qual.noise = 0;
992 wstats->qual.updated = IW_QUAL_ALL_INVALID;
993 } else {
994 wstats->qual.level = sta->last_rssi;
995 wstats->qual.qual = sta->last_signal;
996 wstats->qual.noise = sta->last_noise;
997 wstats->qual.updated = local->wstats_flags;
998 }
999 return wstats;
1000}
1001
1002static int ieee80211_ioctl_giwauth(struct net_device *dev,
1003 struct iw_request_info *info,
1004 struct iw_param *data, char *extra)
1005{
1006 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1007 int ret = 0;
1008
1009 switch (data->flags & IW_AUTH_INDEX) {
1010 case IW_AUTH_80211_AUTH_ALG:
1011 if (sdata->vif.type == IEEE80211_IF_TYPE_STA ||
1012 sdata->vif.type == IEEE80211_IF_TYPE_IBSS)
1013 data->value = sdata->u.sta.auth_algs;
1014 else
1015 ret = -EOPNOTSUPP;
1016 break;
1017 default:
1018 ret = -EOPNOTSUPP;
1019 break;
1020 }
1021 return ret;
1022}
1023
1024
1025static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1026 struct iw_request_info *info,
1027 struct iw_point *erq, char *extra)
1028{
1029 struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1030 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1031 int uninitialized_var(alg), idx, i, remove = 0;
1032
1033 switch (ext->alg) {
1034 case IW_ENCODE_ALG_NONE:
1035 remove = 1;
1036 break;
1037 case IW_ENCODE_ALG_WEP:
1038 alg = ALG_WEP;
1039 break;
1040 case IW_ENCODE_ALG_TKIP:
1041 alg = ALG_TKIP;
1042 break;
1043 case IW_ENCODE_ALG_CCMP:
1044 alg = ALG_CCMP;
1045 break;
1046 default:
1047 return -EOPNOTSUPP;
1048 }
1049
1050 if (erq->flags & IW_ENCODE_DISABLED)
1051 remove = 1;
1052
1053 idx = erq->flags & IW_ENCODE_INDEX;
1054 if (idx < 1 || idx > 4) {
1055 idx = -1;
1056 if (!sdata->default_key)
1057 idx = 0;
1058 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1059 if (sdata->default_key == sdata->keys[i]) {
1060 idx = i;
1061 break;
1062 }
1063 }
1064 if (idx < 0)
1065 return -EINVAL;
1066 } else
1067 idx--;
1068
1069 return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1070 remove,
1071 ext->ext_flags &
1072 IW_ENCODE_EXT_SET_TX_KEY,
1073 ext->key, ext->key_len);
1074}
1075
1076
1077/* Structures to export the Wireless Handlers */
1078
1079static const iw_handler ieee80211_handler[] =
1080{
1081 (iw_handler) NULL, /* SIOCSIWCOMMIT */
1082 (iw_handler) ieee80211_ioctl_giwname, /* SIOCGIWNAME */
1083 (iw_handler) NULL, /* SIOCSIWNWID */
1084 (iw_handler) NULL, /* SIOCGIWNWID */
1085 (iw_handler) ieee80211_ioctl_siwfreq, /* SIOCSIWFREQ */
1086 (iw_handler) ieee80211_ioctl_giwfreq, /* SIOCGIWFREQ */
1087 (iw_handler) ieee80211_ioctl_siwmode, /* SIOCSIWMODE */
1088 (iw_handler) ieee80211_ioctl_giwmode, /* SIOCGIWMODE */
1089 (iw_handler) NULL, /* SIOCSIWSENS */
1090 (iw_handler) NULL, /* SIOCGIWSENS */
1091 (iw_handler) NULL /* not used */, /* SIOCSIWRANGE */
1092 (iw_handler) ieee80211_ioctl_giwrange, /* SIOCGIWRANGE */
1093 (iw_handler) NULL /* not used */, /* SIOCSIWPRIV */
1094 (iw_handler) NULL /* kernel code */, /* SIOCGIWPRIV */
1095 (iw_handler) NULL /* not used */, /* SIOCSIWSTATS */
1096 (iw_handler) NULL /* kernel code */, /* SIOCGIWSTATS */
1097 (iw_handler) NULL, /* SIOCSIWSPY */
1098 (iw_handler) NULL, /* SIOCGIWSPY */
1099 (iw_handler) NULL, /* SIOCSIWTHRSPY */
1100 (iw_handler) NULL, /* SIOCGIWTHRSPY */
1101 (iw_handler) ieee80211_ioctl_siwap, /* SIOCSIWAP */
1102 (iw_handler) ieee80211_ioctl_giwap, /* SIOCGIWAP */
1103 (iw_handler) ieee80211_ioctl_siwmlme, /* SIOCSIWMLME */
1104 (iw_handler) NULL, /* SIOCGIWAPLIST */
1105 (iw_handler) ieee80211_ioctl_siwscan, /* SIOCSIWSCAN */
1106 (iw_handler) ieee80211_ioctl_giwscan, /* SIOCGIWSCAN */
1107 (iw_handler) ieee80211_ioctl_siwessid, /* SIOCSIWESSID */
1108 (iw_handler) ieee80211_ioctl_giwessid, /* SIOCGIWESSID */
1109 (iw_handler) NULL, /* SIOCSIWNICKN */
1110 (iw_handler) NULL, /* SIOCGIWNICKN */
1111 (iw_handler) NULL, /* -- hole -- */
1112 (iw_handler) NULL, /* -- hole -- */
1113 (iw_handler) ieee80211_ioctl_siwrate, /* SIOCSIWRATE */
1114 (iw_handler) ieee80211_ioctl_giwrate, /* SIOCGIWRATE */
1115 (iw_handler) ieee80211_ioctl_siwrts, /* SIOCSIWRTS */
1116 (iw_handler) ieee80211_ioctl_giwrts, /* SIOCGIWRTS */
1117 (iw_handler) ieee80211_ioctl_siwfrag, /* SIOCSIWFRAG */
1118 (iw_handler) ieee80211_ioctl_giwfrag, /* SIOCGIWFRAG */
1119 (iw_handler) ieee80211_ioctl_siwtxpower, /* SIOCSIWTXPOW */
1120 (iw_handler) ieee80211_ioctl_giwtxpower, /* SIOCGIWTXPOW */
1121 (iw_handler) ieee80211_ioctl_siwretry, /* SIOCSIWRETRY */
1122 (iw_handler) ieee80211_ioctl_giwretry, /* SIOCGIWRETRY */
1123 (iw_handler) ieee80211_ioctl_siwencode, /* SIOCSIWENCODE */
1124 (iw_handler) ieee80211_ioctl_giwencode, /* SIOCGIWENCODE */
1125 (iw_handler) NULL, /* SIOCSIWPOWER */
1126 (iw_handler) NULL, /* SIOCGIWPOWER */
1127 (iw_handler) NULL, /* -- hole -- */
1128 (iw_handler) NULL, /* -- hole -- */
1129 (iw_handler) ieee80211_ioctl_siwgenie, /* SIOCSIWGENIE */
1130 (iw_handler) NULL, /* SIOCGIWGENIE */
1131 (iw_handler) ieee80211_ioctl_siwauth, /* SIOCSIWAUTH */
1132 (iw_handler) ieee80211_ioctl_giwauth, /* SIOCGIWAUTH */
1133 (iw_handler) ieee80211_ioctl_siwencodeext, /* SIOCSIWENCODEEXT */
1134 (iw_handler) NULL, /* SIOCGIWENCODEEXT */
1135 (iw_handler) NULL, /* SIOCSIWPMKSA */
1136 (iw_handler) NULL, /* -- hole -- */
1137};
1138
1139const struct iw_handler_def ieee80211_iw_handler_def =
1140{
1141 .num_standard = ARRAY_SIZE(ieee80211_handler),
1142 .standard = (iw_handler *) ieee80211_handler,
1143 .get_wireless_stats = ieee80211_get_wireless_stats,
1144};
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-10 23:15:25 -0500