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mac80211: verify info->control.vif is not NULL
[net-next-2.6.git] / net / wireless / wext-compat.c
CommitLineData
fee52678
JB		 1/*
2 * cfg80211 - wext compat code
3 *
4 * This is temporary code until all wireless functionality is migrated
5 * into cfg80211, when that happens all the exports here go away and
6 * we directly assign the wireless handlers of wireless interfaces.
7 *
08645126 8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
fee52678
JB		 9 */
10
11#include <linux/wireless.h>
12#include <linux/nl80211.h>
691597cb 13#include <linux/if_arp.h>
08645126 14#include <linux/etherdevice.h>
fee52678 15#include <net/iw_handler.h>
fee52678
JB		 16#include <net/cfg80211.h>
17#include "core.h"
18
19int cfg80211_wext_giwname(struct net_device *dev,
20 struct iw_request_info *info,
21 char *name, char *extra)
22{
23 struct wireless_dev *wdev = dev->ieee80211_ptr;
24 struct ieee80211_supported_band *sband;
25 bool is_ht = false, is_a = false, is_b = false, is_g = false;
26
27 if (!wdev)
28 return -EOPNOTSUPP;
29
30 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
31 if (sband) {
32 is_a = true;
33 is_ht |= sband->ht_cap.ht_supported;
34 }
35
36 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
37 if (sband) {
38 int i;
39 /* Check for mandatory rates */
40 for (i = 0; i < sband->n_bitrates; i++) {
41 if (sband->bitrates[i].bitrate == 10)
42 is_b = true;
43 if (sband->bitrates[i].bitrate == 60)
44 is_g = true;
45 }
46 is_ht |= sband->ht_cap.ht_supported;
47 }
48
49 strcpy(name, "IEEE 802.11");
50 if (is_a)
51 strcat(name, "a");
52 if (is_b)
53 strcat(name, "b");
54 if (is_g)
55 strcat(name, "g");
56 if (is_ht)
57 strcat(name, "n");
58
59 return 0;
60}
ba44cb72 61EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
e60c7744
JB		 62
63int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
64 u32 *mode, char *extra)
65{
66 struct wireless_dev *wdev = dev->ieee80211_ptr;
67 struct cfg80211_registered_device *rdev;
68 struct vif_params vifparams;
69 enum nl80211_iftype type;
ac7f9cfa 70 int ret;
e60c7744
JB		 71
72 if (!wdev)
73 return -EOPNOTSUPP;
74
75 rdev = wiphy_to_dev(wdev->wiphy);
76
77 if (!rdev->ops->change_virtual_intf)
78 return -EOPNOTSUPP;
79
80 /* don't support changing VLANs, you just re-create them */
81 if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
82 return -EOPNOTSUPP;
83
84 switch (*mode) {
85 case IW_MODE_INFRA:
86 type = NL80211_IFTYPE_STATION;
87 break;
88 case IW_MODE_ADHOC:
89 type = NL80211_IFTYPE_ADHOC;
90 break;
91 case IW_MODE_REPEAT:
92 type = NL80211_IFTYPE_WDS;
93 break;
94 case IW_MODE_MONITOR:
95 type = NL80211_IFTYPE_MONITOR;
96 break;
97 default:
98 return -EINVAL;
99 }
100
ac7f9cfa
JB		 101 if (type == wdev->iftype)
102 return 0;
103
e60c7744
JB		 104 memset(&vifparams, 0, sizeof(vifparams));
105
e36d56b6 106 ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
ac7f9cfa
JB		 107 NULL, &vifparams);
108 WARN_ON(!ret && wdev->iftype != type);
109
110 return ret;
e60c7744 111}
ba44cb72 112EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
e60c7744
JB		 113
114int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
115 u32 *mode, char *extra)
116{
117 struct wireless_dev *wdev = dev->ieee80211_ptr;
118
119 if (!wdev)
120 return -EOPNOTSUPP;
121
122 switch (wdev->iftype) {
123 case NL80211_IFTYPE_AP:
124 *mode = IW_MODE_MASTER;
125 break;
126 case NL80211_IFTYPE_STATION:
127 *mode = IW_MODE_INFRA;
128 break;
129 case NL80211_IFTYPE_ADHOC:
130 *mode = IW_MODE_ADHOC;
131 break;
132 case NL80211_IFTYPE_MONITOR:
133 *mode = IW_MODE_MONITOR;
134 break;
135 case NL80211_IFTYPE_WDS:
136 *mode = IW_MODE_REPEAT;
137 break;
138 case NL80211_IFTYPE_AP_VLAN:
139 *mode = IW_MODE_SECOND; /* FIXME */
140 break;
141 default:
142 *mode = IW_MODE_AUTO;
143 break;
144 }
145 return 0;
146}
ba44cb72 147EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
4aa188e1
JB		 148
149
150int cfg80211_wext_giwrange(struct net_device *dev,
151 struct iw_request_info *info,
152 struct iw_point *data, char *extra)
153{
154 struct wireless_dev *wdev = dev->ieee80211_ptr;
155 struct iw_range *range = (struct iw_range *) extra;
156 enum ieee80211_band band;
9834c079 157 int i, c = 0;
4aa188e1
JB		 158
159 if (!wdev)
160 return -EOPNOTSUPP;
161
162 data->length = sizeof(struct iw_range);
163 memset(range, 0, sizeof(struct iw_range));
164
165 range->we_version_compiled = WIRELESS_EXT;
166 range->we_version_source = 21;
167 range->retry_capa = IW_RETRY_LIMIT;
168 range->retry_flags = IW_RETRY_LIMIT;
169 range->min_retry = 0;
170 range->max_retry = 255;
171 range->min_rts = 0;
172 range->max_rts = 2347;
173 range->min_frag = 256;
174 range->max_frag = 2346;
175
4aa188e1
JB		 176 range->max_encoding_tokens = 4;
177
178 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
179
180 switch (wdev->wiphy->signal_type) {
181 case CFG80211_SIGNAL_TYPE_NONE:
182 break;
183 case CFG80211_SIGNAL_TYPE_MBM:
184 range->max_qual.level = -110;
185 range->max_qual.qual = 70;
186 range->avg_qual.qual = 35;
187 range->max_qual.updated |= IW_QUAL_DBM;
188 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
189 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
190 break;
191 case CFG80211_SIGNAL_TYPE_UNSPEC:
192 range->max_qual.level = 100;
193 range->max_qual.qual = 100;
194 range->avg_qual.qual = 50;
195 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
196 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
197 break;
198 }
199
200 range->avg_qual.level = range->max_qual.level / 2;
201 range->avg_qual.noise = range->max_qual.noise / 2;
202 range->avg_qual.updated = range->max_qual.updated;
203
9834c079
JB		 204 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
205 switch (wdev->wiphy->cipher_suites[i]) {
3daf0975 206 case WLAN_CIPHER_SUITE_TKIP:
27bea66c
DK		 207 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
208 IW_ENC_CAPA_WPA);
3daf0975
DK		 209 break;
210
211 case WLAN_CIPHER_SUITE_CCMP:
27bea66c
DK		 212 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
213 IW_ENC_CAPA_WPA2);
3daf0975 214 break;
2ab658f9
DK		 215
216 case WLAN_CIPHER_SUITE_WEP40:
217 range->encoding_size[range->num_encoding_sizes++] =
218 WLAN_KEY_LEN_WEP40;
219 break;
220
221 case WLAN_CIPHER_SUITE_WEP104:
222 range->encoding_size[range->num_encoding_sizes++] =
223 WLAN_KEY_LEN_WEP104;
224 break;
3daf0975
DK		 225 }
226 }
4aa188e1 227
4aa188e1 228 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
4aa188e1
JB		 229 struct ieee80211_supported_band *sband;
230
231 sband = wdev->wiphy->bands[band];
232
233 if (!sband)
234 continue;
235
236 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
237 struct ieee80211_channel *chan = &sband->channels[i];
238
239 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
240 range->freq[c].i =
241 ieee80211_frequency_to_channel(
242 chan->center_freq);
243 range->freq[c].m = chan->center_freq;
244 range->freq[c].e = 6;
245 c++;
246 }
247 }
248 }
249 range->num_channels = c;
250 range->num_frequency = c;
251
252 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
253 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
254 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
255
51cd4aab
DK		 256 if (wdev->wiphy->max_scan_ssids > 0)
257 range->scan_capa |= IW_SCAN_CAPA_ESSID;
4aa188e1
JB		 258
259 return 0;
260}
ba44cb72 261EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
691597cb 262
04a773ad
JB		 263
264/**
265 * cfg80211_wext_freq - get wext frequency for non-"auto"
266 * @wiphy: the wiphy
267 * @freq: the wext freq encoding
268 *
269 * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
270 */
271struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
272 struct iw_freq *freq)
273{
0b258582
JB		 274 struct ieee80211_channel *chan;
275 int f;
276
277 /*
278 * Parse frequency - return NULL for auto and
279 * -EINVAL for impossible things.
280 */
04a773ad
JB		 281 if (freq->e == 0) {
282 if (freq->m < 0)
283 return NULL;
0b258582 284 f = ieee80211_channel_to_frequency(freq->m);
04a773ad
JB		 285 } else {
286 int i, div = 1000000;
287 for (i = 0; i < freq->e; i++)
288 div /= 10;
0b258582 289 if (div <= 0)
04a773ad 290 return ERR_PTR(-EINVAL);
0b258582 291 f = freq->m / div;
04a773ad
JB		 292 }
293
0b258582
JB		 294 /*
295 * Look up channel struct and return -EINVAL when
296 * it cannot be found.
297 */
298 chan = ieee80211_get_channel(wiphy, f);
299 if (!chan)
300 return ERR_PTR(-EINVAL);
301 return chan;
04a773ad 302}
ba44cb72 303EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
b9a5f8ca
JM		 304
305int cfg80211_wext_siwrts(struct net_device *dev,
306 struct iw_request_info *info,
307 struct iw_param *rts, char *extra)
308{
309 struct wireless_dev *wdev = dev->ieee80211_ptr;
310 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
311 u32 orts = wdev->wiphy->rts_threshold;
312 int err;
313
314 if (rts->disabled || !rts->fixed)
315 wdev->wiphy->rts_threshold = (u32) -1;
316 else if (rts->value < 0)
317 return -EINVAL;
318 else
319 wdev->wiphy->rts_threshold = rts->value;
320
321 err = rdev->ops->set_wiphy_params(wdev->wiphy,
322 WIPHY_PARAM_RTS_THRESHOLD);
323 if (err)
324 wdev->wiphy->rts_threshold = orts;
325
326 return err;
327}
ba44cb72 328EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
b9a5f8ca
JM		 329
330int cfg80211_wext_giwrts(struct net_device *dev,
331 struct iw_request_info *info,
332 struct iw_param *rts, char *extra)
333{
334 struct wireless_dev *wdev = dev->ieee80211_ptr;
335
336 rts->value = wdev->wiphy->rts_threshold;
337 rts->disabled = rts->value == (u32) -1;
338 rts->fixed = 1;
339
340 return 0;
341}
ba44cb72 342EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
b9a5f8ca
JM		 343
344int cfg80211_wext_siwfrag(struct net_device *dev,
345 struct iw_request_info *info,
346 struct iw_param *frag, char *extra)
347{
348 struct wireless_dev *wdev = dev->ieee80211_ptr;
349 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
350 u32 ofrag = wdev->wiphy->frag_threshold;
351 int err;
352
353 if (frag->disabled || !frag->fixed)
354 wdev->wiphy->frag_threshold = (u32) -1;
355 else if (frag->value < 256)
356 return -EINVAL;
357 else {
358 /* Fragment length must be even, so strip LSB. */
359 wdev->wiphy->frag_threshold = frag->value & ~0x1;
360 }
361
362 err = rdev->ops->set_wiphy_params(wdev->wiphy,
363 WIPHY_PARAM_FRAG_THRESHOLD);
364 if (err)
365 wdev->wiphy->frag_threshold = ofrag;
366
367 return err;
368}
ba44cb72 369EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
b9a5f8ca
JM		 370
371int cfg80211_wext_giwfrag(struct net_device *dev,
372 struct iw_request_info *info,
373 struct iw_param *frag, char *extra)
374{
375 struct wireless_dev *wdev = dev->ieee80211_ptr;
376
377 frag->value = wdev->wiphy->frag_threshold;
378 frag->disabled = frag->value == (u32) -1;
379 frag->fixed = 1;
380
381 return 0;
382}
ba44cb72 383EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
b9a5f8ca
JM		 384
385int cfg80211_wext_siwretry(struct net_device *dev,
386 struct iw_request_info *info,
387 struct iw_param *retry, char *extra)
388{
389 struct wireless_dev *wdev = dev->ieee80211_ptr;
390 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
391 u32 changed = 0;
392 u8 olong = wdev->wiphy->retry_long;
393 u8 oshort = wdev->wiphy->retry_short;
394 int err;
395
396 if (retry->disabled ||
397 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
398 return -EINVAL;
399
400 if (retry->flags & IW_RETRY_LONG) {
401 wdev->wiphy->retry_long = retry->value;
402 changed |= WIPHY_PARAM_RETRY_LONG;
403 } else if (retry->flags & IW_RETRY_SHORT) {
404 wdev->wiphy->retry_short = retry->value;
405 changed |= WIPHY_PARAM_RETRY_SHORT;
406 } else {
407 wdev->wiphy->retry_short = retry->value;
408 wdev->wiphy->retry_long = retry->value;
409 changed |= WIPHY_PARAM_RETRY_LONG;
410 changed |= WIPHY_PARAM_RETRY_SHORT;
411 }
412
413 if (!changed)
414 return 0;
415
416 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
417 if (err) {
418 wdev->wiphy->retry_short = oshort;
419 wdev->wiphy->retry_long = olong;
420 }
421
422 return err;
423}
ba44cb72 424EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
b9a5f8ca
JM		 425
426int cfg80211_wext_giwretry(struct net_device *dev,
427 struct iw_request_info *info,
428 struct iw_param *retry, char *extra)
429{
430 struct wireless_dev *wdev = dev->ieee80211_ptr;
431
432 retry->disabled = 0;
433
434 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
435 /*
436 * First return short value, iwconfig will ask long value
437 * later if needed
438 */
439 retry->flags |= IW_RETRY_LIMIT;
440 retry->value = wdev->wiphy->retry_short;
441 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
442 retry->flags |= IW_RETRY_LONG;
443
444 return 0;
445 }
446
447 if (retry->flags & IW_RETRY_LONG) {
448 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
449 retry->value = wdev->wiphy->retry_long;
450 }
451
452 return 0;
453}
ba44cb72 454EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
08645126 455
fffd0934
JB		 456static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
457 struct net_device *dev, const u8 *addr,
458 bool remove, bool tx_key, int idx,
459 struct key_params *params)
08645126
JB		 460{
461 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934
JB		 462 int err, i;
463
464 if (!wdev->wext.keys) {
465 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
466 GFP_KERNEL);
467 if (!wdev->wext.keys)
468 return -ENOMEM;
469 for (i = 0; i < 6; i++)
470 wdev->wext.keys->params[i].key =
471 wdev->wext.keys->data[i];
472 }
473
474 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
475 wdev->iftype != NL80211_IFTYPE_STATION)
476 return -EOPNOTSUPP;
08645126
JB		 477
478 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
fffd0934
JB		 479 if (!wdev->current_bss)
480 return -ENOLINK;
481
08645126
JB		 482 if (!rdev->ops->set_default_mgmt_key)
483 return -EOPNOTSUPP;
484
485 if (idx < 4 || idx > 5)
486 return -EINVAL;
487 } else if (idx < 0 || idx > 3)
488 return -EINVAL;
489
490 if (remove) {
fffd0934
JB		 491 err = 0;
492 if (wdev->current_bss)
493 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
08645126 494 if (!err) {
fffd0934
JB		 495 if (!addr) {
496 wdev->wext.keys->params[idx].key_len = 0;
497 wdev->wext.keys->params[idx].cipher = 0;
498 }
08645126
JB		 499 if (idx == wdev->wext.default_key)
500 wdev->wext.default_key = -1;
501 else if (idx == wdev->wext.default_mgmt_key)
502 wdev->wext.default_mgmt_key = -1;
503 }
e3da574a
JB		 504 /*
505 * Applications using wireless extensions expect to be
506 * able to delete keys that don't exist, so allow that.
507 */
508 if (err == -ENOENT)
509 return 0;
510
08645126 511 return err;
fffd0934 512 }
08645126 513
fffd0934
JB		 514 if (addr)
515 tx_key = false;
516
517 if (cfg80211_validate_key_settings(rdev, params, idx, addr))
518 return -EINVAL;
08645126 519
fffd0934
JB		 520 err = 0;
521 if (wdev->current_bss)
08645126 522 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
fffd0934
JB		 523 if (err)
524 return err;
525
526 if (!addr) {
527 wdev->wext.keys->params[idx] = *params;
528 memcpy(wdev->wext.keys->data[idx],
529 params->key, params->key_len);
530 wdev->wext.keys->params[idx].key =
531 wdev->wext.keys->data[idx];
532 }
08645126 533
1f00fca5
ZY		 534 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
535 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
fffd0934
JB		 536 (tx_key || (!addr && wdev->wext.default_key == -1))) {
537 if (wdev->current_bss)
08645126
JB		 538 err = rdev->ops->set_default_key(&rdev->wiphy,
539 dev, idx);
fffd0934
JB		 540 if (!err)
541 wdev->wext.default_key = idx;
542 return err;
543 }
08645126 544
fffd0934
JB		 545 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
546 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
547 if (wdev->current_bss)
08645126
JB		 548 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
549 dev, idx);
fffd0934
JB		 550 if (!err)
551 wdev->wext.default_mgmt_key = idx;
552 return err;
08645126 553 }
fffd0934
JB		 554
555 return 0;
556}
557
558static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
559 struct net_device *dev, const u8 *addr,
560 bool remove, bool tx_key, int idx,
561 struct key_params *params)
562{
563 int err;
564
565 wdev_lock(dev->ieee80211_ptr);
566 err = __cfg80211_set_encryption(rdev, dev, addr, remove,
567 tx_key, idx, params);
568 wdev_unlock(dev->ieee80211_ptr);
569
570 return err;
08645126
JB		 571}
572
573int cfg80211_wext_siwencode(struct net_device *dev,
574 struct iw_request_info *info,
575 struct iw_point *erq, char *keybuf)
576{
577 struct wireless_dev *wdev = dev->ieee80211_ptr;
578 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
579 int idx, err;
580 bool remove = false;
581 struct key_params params;
582
fffd0934
JB		 583 if (wdev->iftype != NL80211_IFTYPE_STATION &&
584 wdev->iftype != NL80211_IFTYPE_ADHOC)
585 return -EOPNOTSUPP;
586
08645126
JB		 587 /* no use -- only MFP (set_default_mgmt_key) is optional */
588 if (!rdev->ops->del_key ||
589 !rdev->ops->add_key ||
590 !rdev->ops->set_default_key)
591 return -EOPNOTSUPP;
592
593 idx = erq->flags & IW_ENCODE_INDEX;
594 if (idx == 0) {
595 idx = wdev->wext.default_key;
596 if (idx < 0)
597 idx = 0;
598 } else if (idx < 1 || idx > 4)
599 return -EINVAL;
600 else
601 idx--;
602
603 if (erq->flags & IW_ENCODE_DISABLED)
604 remove = true;
605 else if (erq->length == 0) {
606 /* No key data - just set the default TX key index */
fffd0934
JB		 607 err = 0;
608 wdev_lock(wdev);
609 if (wdev->current_bss)
610 err = rdev->ops->set_default_key(&rdev->wiphy,
611 dev, idx);
08645126
JB		 612 if (!err)
613 wdev->wext.default_key = idx;
fffd0934 614 wdev_unlock(wdev);
08645126
JB		 615 return err;
616 }
617
618 memset(&params, 0, sizeof(params));
619 params.key = keybuf;
620 params.key_len = erq->length;
621 if (erq->length == 5)
622 params.cipher = WLAN_CIPHER_SUITE_WEP40;
623 else if (erq->length == 13)
624 params.cipher = WLAN_CIPHER_SUITE_WEP104;
625 else if (!remove)
626 return -EINVAL;
627
628 return cfg80211_set_encryption(rdev, dev, NULL, remove,
629 wdev->wext.default_key == -1,
630 idx, &params);
631}
632EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
633
634int cfg80211_wext_siwencodeext(struct net_device *dev,
635 struct iw_request_info *info,
636 struct iw_point *erq, char *extra)
637{
638 struct wireless_dev *wdev = dev->ieee80211_ptr;
639 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
640 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
641 const u8 *addr;
642 int idx;
643 bool remove = false;
644 struct key_params params;
645 u32 cipher;
646
fffd0934
JB		 647 if (wdev->iftype != NL80211_IFTYPE_STATION &&
648 wdev->iftype != NL80211_IFTYPE_ADHOC)
649 return -EOPNOTSUPP;
650
08645126
JB		 651 /* no use -- only MFP (set_default_mgmt_key) is optional */
652 if (!rdev->ops->del_key ||
653 !rdev->ops->add_key ||
654 !rdev->ops->set_default_key)
655 return -EOPNOTSUPP;
656
657 switch (ext->alg) {
658 case IW_ENCODE_ALG_NONE:
659 remove = true;
660 cipher = 0;
661 break;
662 case IW_ENCODE_ALG_WEP:
663 if (ext->key_len == 5)
664 cipher = WLAN_CIPHER_SUITE_WEP40;
665 else if (ext->key_len == 13)
666 cipher = WLAN_CIPHER_SUITE_WEP104;
667 else
668 return -EINVAL;
669 break;
670 case IW_ENCODE_ALG_TKIP:
671 cipher = WLAN_CIPHER_SUITE_TKIP;
672 break;
673 case IW_ENCODE_ALG_CCMP:
674 cipher = WLAN_CIPHER_SUITE_CCMP;
675 break;
676 case IW_ENCODE_ALG_AES_CMAC:
677 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
678 break;
679 default:
680 return -EOPNOTSUPP;
681 }
682
683 if (erq->flags & IW_ENCODE_DISABLED)
684 remove = true;
685
686 idx = erq->flags & IW_ENCODE_INDEX;
687 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
688 if (idx < 4 || idx > 5) {
689 idx = wdev->wext.default_mgmt_key;
690 if (idx < 0)
691 return -EINVAL;
692 } else
693 idx--;
694 } else {
695 if (idx < 1 || idx > 4) {
696 idx = wdev->wext.default_key;
697 if (idx < 0)
698 return -EINVAL;
699 } else
700 idx--;
701 }
702
703 addr = ext->addr.sa_data;
704 if (is_broadcast_ether_addr(addr))
705 addr = NULL;
706
707 memset(&params, 0, sizeof(params));
708 params.key = ext->key;
709 params.key_len = ext->key_len;
710 params.cipher = cipher;
711
faa8fdc8
JM		 712 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
713 params.seq = ext->rx_seq;
714 params.seq_len = 6;
715 }
716
08645126
JB		 717 return cfg80211_set_encryption(
718 rdev, dev, addr, remove,
719 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
720 idx, &params);
721}
722EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
723
08645126
JB		 724int cfg80211_wext_giwencode(struct net_device *dev,
725 struct iw_request_info *info,
726 struct iw_point *erq, char *keybuf)
727{
728 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934 729 int idx;
08645126 730
fffd0934
JB		 731 if (wdev->iftype != NL80211_IFTYPE_STATION &&
732 wdev->iftype != NL80211_IFTYPE_ADHOC)
08645126
JB		 733 return -EOPNOTSUPP;
734
735 idx = erq->flags & IW_ENCODE_INDEX;
736 if (idx == 0) {
737 idx = wdev->wext.default_key;
738 if (idx < 0)
739 idx = 0;
740 } else if (idx < 1 || idx > 4)
741 return -EINVAL;
742 else
743 idx--;
744
745 erq->flags = idx + 1;
746
fffd0934 747 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
08645126
JB		 748 erq->flags |= IW_ENCODE_DISABLED;
749 erq->length = 0;
750 return 0;
751 }
752
fffd0934
JB		 753 erq->length = min_t(size_t, erq->length,
754 wdev->wext.keys->params[idx].key_len);
755 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
756 erq->flags |= IW_ENCODE_ENABLED;
757
758 return 0;
08645126
JB		 759}
760EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
7643a2c3
JB		 761
762int cfg80211_wext_siwtxpower(struct net_device *dev,
763 struct iw_request_info *info,
764 union iwreq_data *data, char *extra)
765{
766 struct wireless_dev *wdev = dev->ieee80211_ptr;
767 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
768 enum tx_power_setting type;
769 int dbm = 0;
770
771 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
772 return -EINVAL;
773 if (data->txpower.flags & IW_TXPOW_RANGE)
774 return -EINVAL;
775
776 if (!rdev->ops->set_tx_power)
777 return -EOPNOTSUPP;
778
779 /* only change when not disabling */
780 if (!data->txpower.disabled) {
1f87f7d3
JB		 781 rfkill_set_sw_state(rdev->rfkill, false);
782
7643a2c3
JB		 783 if (data->txpower.fixed) {
784 /*
785 * wext doesn't support negative values, see
786 * below where it's for automatic
787 */
788 if (data->txpower.value < 0)
789 return -EINVAL;
790 dbm = data->txpower.value;
791 type = TX_POWER_FIXED;
792 /* TODO: do regulatory check! */
793 } else {
794 /*
795 * Automatic power level setting, max being the value
796 * passed in from userland.
797 */
798 if (data->txpower.value < 0) {
799 type = TX_POWER_AUTOMATIC;
800 } else {
801 dbm = data->txpower.value;
802 type = TX_POWER_LIMITED;
803 }
804 }
805 } else {
1f87f7d3
JB		 806 rfkill_set_sw_state(rdev->rfkill, true);
807 schedule_work(&rdev->rfkill_sync);
808 return 0;
7643a2c3
JB		 809 }
810
811 return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
812}
813EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
814
815int cfg80211_wext_giwtxpower(struct net_device *dev,
816 struct iw_request_info *info,
817 union iwreq_data *data, char *extra)
818{
819 struct wireless_dev *wdev = dev->ieee80211_ptr;
820 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
821 int err, val;
822
823 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
824 return -EINVAL;
825 if (data->txpower.flags & IW_TXPOW_RANGE)
826 return -EINVAL;
827
828 if (!rdev->ops->get_tx_power)
829 return -EOPNOTSUPP;
830
831 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
1f87f7d3 832 if (err)
7643a2c3
JB		 833 return err;
834
835 /* well... oh well */
836 data->txpower.fixed = 1;
1f87f7d3 837 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
7643a2c3
JB		 838 data->txpower.value = val;
839 data->txpower.flags = IW_TXPOW_DBM;
840
841 return 0;
842}
843EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
f2129354
JB		 844
845static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
846 s32 auth_alg)
847{
848 int nr_alg = 0;
849
850 if (!auth_alg)
851 return -EINVAL;
852
853 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
854 IW_AUTH_ALG_SHARED_KEY |
855 IW_AUTH_ALG_LEAP))
856 return -EINVAL;
857
858 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
859 nr_alg++;
860 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
861 }
862
863 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
864 nr_alg++;
865 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
866 }
867
868 if (auth_alg & IW_AUTH_ALG_LEAP) {
869 nr_alg++;
870 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
871 }
872
873 if (nr_alg > 1)
874 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
875
876 return 0;
877}
878
879static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
880{
881 wdev->wext.connect.crypto.wpa_versions = 0;
882
883 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
323d566e
GS		 884 IW_AUTH_WPA_VERSION_WPA2|
885 IW_AUTH_WPA_VERSION_DISABLED))
f2129354
JB		 886 return -EINVAL;
887
323d566e
GS		 888 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
889 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
890 IW_AUTH_WPA_VERSION_WPA2)))
891 return -EINVAL;
892
893 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
894 wdev->wext.connect.crypto.wpa_versions &=
895 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
896
f2129354
JB		 897 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
898 wdev->wext.connect.crypto.wpa_versions |=
899 NL80211_WPA_VERSION_1;
900
901 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
902 wdev->wext.connect.crypto.wpa_versions |=
903 NL80211_WPA_VERSION_2;
904
905 return 0;
906}
907
4f5dadce 908static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
f2129354
JB		 909{
910 wdev->wext.connect.crypto.cipher_group = 0;
911
912 if (cipher & IW_AUTH_CIPHER_WEP40)
913 wdev->wext.connect.crypto.cipher_group =
914 WLAN_CIPHER_SUITE_WEP40;
915 else if (cipher & IW_AUTH_CIPHER_WEP104)
916 wdev->wext.connect.crypto.cipher_group =
917 WLAN_CIPHER_SUITE_WEP104;
918 else if (cipher & IW_AUTH_CIPHER_TKIP)
919 wdev->wext.connect.crypto.cipher_group =
920 WLAN_CIPHER_SUITE_TKIP;
921 else if (cipher & IW_AUTH_CIPHER_CCMP)
922 wdev->wext.connect.crypto.cipher_group =
923 WLAN_CIPHER_SUITE_CCMP;
924 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
925 wdev->wext.connect.crypto.cipher_group =
926 WLAN_CIPHER_SUITE_AES_CMAC;
927 else
928 return -EINVAL;
929
930 return 0;
931}
932
4f5dadce 933static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
f2129354
JB		 934{
935 int nr_ciphers = 0;
936 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
937
938 if (cipher & IW_AUTH_CIPHER_WEP40) {
939 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
940 nr_ciphers++;
941 }
942
943 if (cipher & IW_AUTH_CIPHER_WEP104) {
944 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
945 nr_ciphers++;
946 }
947
948 if (cipher & IW_AUTH_CIPHER_TKIP) {
949 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
950 nr_ciphers++;
951 }
952
953 if (cipher & IW_AUTH_CIPHER_CCMP) {
954 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
955 nr_ciphers++;
956 }
957
958 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
959 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
960 nr_ciphers++;
961 }
962
963 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
964
965 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
966
967 return 0;
968}
969
970
4f5dadce 971static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
f2129354
JB		 972{
973 int nr_akm_suites = 0;
974
975 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
976 IW_AUTH_KEY_MGMT_PSK))
977 return -EINVAL;
978
979 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
980 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
981 WLAN_AKM_SUITE_8021X;
982 nr_akm_suites++;
983 }
984
985 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
986 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
987 WLAN_AKM_SUITE_PSK;
988 nr_akm_suites++;
989 }
990
991 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
992
993 return 0;
994}
995
996int cfg80211_wext_siwauth(struct net_device *dev,
997 struct iw_request_info *info,
998 struct iw_param *data, char *extra)
999{
1000 struct wireless_dev *wdev = dev->ieee80211_ptr;
1001
1002 if (wdev->iftype != NL80211_IFTYPE_STATION)
1003 return -EOPNOTSUPP;
1004
1005 switch (data->flags & IW_AUTH_INDEX) {
1006 case IW_AUTH_PRIVACY_INVOKED:
1007 wdev->wext.connect.privacy = data->value;
1008 return 0;
1009 case IW_AUTH_WPA_VERSION:
1010 return cfg80211_set_wpa_version(wdev, data->value);
1011 case IW_AUTH_CIPHER_GROUP:
1012 return cfg80211_set_cipher_group(wdev, data->value);
1013 case IW_AUTH_KEY_MGMT:
1014 return cfg80211_set_key_mgt(wdev, data->value);
1015 case IW_AUTH_CIPHER_PAIRWISE:
1016 return cfg80211_set_cipher_pairwise(wdev, data->value);
1017 case IW_AUTH_80211_AUTH_ALG:
1018 return cfg80211_set_auth_alg(wdev, data->value);
1019 case IW_AUTH_WPA_ENABLED:
1020 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1021 case IW_AUTH_DROP_UNENCRYPTED:
1022 case IW_AUTH_MFP:
1023 return 0;
1024 default:
1025 return -EOPNOTSUPP;
1026 }
1027}
1028EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1029
1030int cfg80211_wext_giwauth(struct net_device *dev,
1031 struct iw_request_info *info,
1032 struct iw_param *data, char *extra)
1033{
1034 /* XXX: what do we need? */
1035
1036 return -EOPNOTSUPP;
1037}
1038EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
bc92afd9
JB		 1039
1040int cfg80211_wext_siwpower(struct net_device *dev,
1041 struct iw_request_info *info,
1042 struct iw_param *wrq, char *extra)
1043{
1044 struct wireless_dev *wdev = dev->ieee80211_ptr;
1045 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1046 bool ps = wdev->wext.ps;
1047 int timeout = wdev->wext.ps_timeout;
1048 int err;
1049
1050 if (wdev->iftype != NL80211_IFTYPE_STATION)
1051 return -EINVAL;
1052
1053 if (!rdev->ops->set_power_mgmt)
1054 return -EOPNOTSUPP;
1055
1056 if (wrq->disabled) {
1057 ps = false;
1058 } else {
1059 switch (wrq->flags & IW_POWER_MODE) {
1060 case IW_POWER_ON: /* If not specified */
1061 case IW_POWER_MODE: /* If set all mask */
1062 case IW_POWER_ALL_R: /* If explicitely state all */
1063 ps = true;
1064 break;
1065 default: /* Otherwise we ignore */
1066 return -EINVAL;
1067 }
1068
1069 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1070 return -EINVAL;
1071
1072 if (wrq->flags & IW_POWER_TIMEOUT)
1073 timeout = wrq->value / 1000;
1074 }
1075
1076 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1077 if (err)
1078 return err;
1079
1080 wdev->wext.ps = ps;
1081 wdev->wext.ps_timeout = timeout;
1082
1083 return 0;
1084
1085}
1086EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1087
1088int cfg80211_wext_giwpower(struct net_device *dev,
1089 struct iw_request_info *info,
1090 struct iw_param *wrq, char *extra)
1091{
1092 struct wireless_dev *wdev = dev->ieee80211_ptr;
1093
1094 wrq->disabled = !wdev->wext.ps;
1095
1096 return 0;
1097}
1098EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
ab737a4f
JB		 1099
1100int cfg80211_wds_wext_siwap(struct net_device *dev,
1101 struct iw_request_info *info,
1102 struct sockaddr *addr, char *extra)
1103{
1104 struct wireless_dev *wdev = dev->ieee80211_ptr;
1105 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1106 int err;
1107
1108 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1109 return -EINVAL;
1110
1111 if (addr->sa_family != ARPHRD_ETHER)
1112 return -EINVAL;
1113
1114 if (netif_running(dev))
1115 return -EBUSY;
1116
1117 if (!rdev->ops->set_wds_peer)
1118 return -EOPNOTSUPP;
1119
1120 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1121 if (err)
1122 return err;
1123
1124 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1125
1126 return 0;
1127}
1128EXPORT_SYMBOL_GPL(cfg80211_wds_wext_siwap);
1129
1130int cfg80211_wds_wext_giwap(struct net_device *dev,
1131 struct iw_request_info *info,
1132 struct sockaddr *addr, char *extra)
1133{
1134 struct wireless_dev *wdev = dev->ieee80211_ptr;
1135
1136 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1137 return -EINVAL;
1138
1139 addr->sa_family = ARPHRD_ETHER;
1140 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1141
1142 return 0;
1143}
1144EXPORT_SYMBOL_GPL(cfg80211_wds_wext_giwap);
9930380f
JB		 1145
1146int cfg80211_wext_siwrate(struct net_device *dev,
1147 struct iw_request_info *info,
1148 struct iw_param *rate, char *extra)
1149{
1150 struct wireless_dev *wdev = dev->ieee80211_ptr;
1151 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1152 struct cfg80211_bitrate_mask mask;
1153
1154 if (!rdev->ops->set_bitrate_mask)
1155 return -EOPNOTSUPP;
1156
1157 mask.fixed = 0;
1158 mask.maxrate = 0;
1159
1160 if (rate->value < 0) {
1161 /* nothing */
1162 } else if (rate->fixed) {
1163 mask.fixed = rate->value / 1000; /* kbps */
1164 } else {
1165 mask.maxrate = rate->value / 1000; /* kbps */
1166 }
1167
1168 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1169}
1170EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1171
1172int cfg80211_wext_giwrate(struct net_device *dev,
1173 struct iw_request_info *info,
1174 struct iw_param *rate, char *extra)
1175{
1176 struct wireless_dev *wdev = dev->ieee80211_ptr;
1177 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1178 /* we are under RTNL - globally locked - so can use a static struct */
1179 static struct station_info sinfo;
a71d62db 1180 u8 addr[ETH_ALEN];
9930380f
JB		 1181 int err;
1182
1183 if (wdev->iftype != NL80211_IFTYPE_STATION)
1184 return -EOPNOTSUPP;
1185
1186 if (!rdev->ops->get_station)
1187 return -EOPNOTSUPP;
1188
a71d62db
JB		 1189 err = 0;
1190 wdev_lock(wdev);
6c230c02 1191 if (wdev->current_bss)
a71d62db 1192 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
6c230c02 1193 else
a71d62db
JB		 1194 err = -EOPNOTSUPP;
1195 wdev_unlock(wdev);
1196 if (err)
1197 return err;
9930380f
JB		 1198
1199 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1200 if (err)
1201 return err;
1202
1203 if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1204 return -EOPNOTSUPP;
1205
1206 rate->value = 0;
1207
1208 if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
1209 rate->value = 100000 * sinfo.txrate.legacy;
1210
1211 return 0;
1212}
1213EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
8990646d
JB		 1214
1215/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1216struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1217{
1218 struct wireless_dev *wdev = dev->ieee80211_ptr;
1219 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1220 /* we are under RTNL - globally locked - so can use static structs */
1221 static struct iw_statistics wstats;
1222 static struct station_info sinfo;
c56c5714 1223 u8 bssid[ETH_ALEN];
8990646d
JB		 1224
1225 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1226 return NULL;
1227
1228 if (!rdev->ops->get_station)
1229 return NULL;
1230
c56c5714
JB		 1231 /* Grab BSSID of current BSS, if any */
1232 wdev_lock(wdev);
1233 if (!wdev->current_bss) {
1234 wdev_unlock(wdev);
8990646d 1235 return NULL;
c56c5714
JB		 1236 }
1237 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1238 wdev_unlock(wdev);
8990646d 1239
c56c5714 1240 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
8990646d
JB		 1241 return NULL;
1242
1243 memset(&wstats, 0, sizeof(wstats));
1244
1245 switch (rdev->wiphy.signal_type) {
1246 case CFG80211_SIGNAL_TYPE_MBM:
1247 if (sinfo.filled & STATION_INFO_SIGNAL) {
1248 int sig = sinfo.signal;
1249 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1250 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1251 wstats.qual.updated |= IW_QUAL_DBM;
1252 wstats.qual.level = sig;
1253 if (sig < -110)
1254 sig = -110;
1255 else if (sig > -40)
1256 sig = -40;
1257 wstats.qual.qual = sig + 110;
1258 break;
1259 }
1260 case CFG80211_SIGNAL_TYPE_UNSPEC:
1261 if (sinfo.filled & STATION_INFO_SIGNAL) {
1262 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1263 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1264 wstats.qual.level = sinfo.signal;
1265 wstats.qual.qual = sinfo.signal;
1266 break;
1267 }
1268 default:
1269 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1270 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1271 }
1272
1273 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1274
1275 return &wstats;
1276}
1277EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
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