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Merge tag 'for-usb-next-2012-03-13' of git://git.kernel.org/pub/scm/linux/kernel...
[deliverable/linux.git] / net / wireless / wext-compat.c
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 *
8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
9 */
10
11 #include <linux/export.h>
12 #include <linux/wireless.h>
13 #include <linux/nl80211.h>
14 #include <linux/if_arp.h>
15 #include <linux/etherdevice.h>
16 #include <linux/slab.h>
17 #include <net/iw_handler.h>
18 #include <net/cfg80211.h>
19 #include <net/cfg80211-wext.h>
20 #include "wext-compat.h"
21 #include "core.h"
22
23 int cfg80211_wext_giwname(struct net_device *dev,
24 struct iw_request_info *info,
25 char *name, char *extra)
26 {
27 struct wireless_dev *wdev = dev->ieee80211_ptr;
28 struct ieee80211_supported_band *sband;
29 bool is_ht = false, is_a = false, is_b = false, is_g = false;
30
31 if (!wdev)
32 return -EOPNOTSUPP;
33
34 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
35 if (sband) {
36 is_a = true;
37 is_ht |= sband->ht_cap.ht_supported;
38 }
39
40 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
41 if (sband) {
42 int i;
43 /* Check for mandatory rates */
44 for (i = 0; i < sband->n_bitrates; i++) {
45 if (sband->bitrates[i].bitrate == 10)
46 is_b = true;
47 if (sband->bitrates[i].bitrate == 60)
48 is_g = true;
49 }
50 is_ht |= sband->ht_cap.ht_supported;
51 }
52
53 strcpy(name, "IEEE 802.11");
54 if (is_a)
55 strcat(name, "a");
56 if (is_b)
57 strcat(name, "b");
58 if (is_g)
59 strcat(name, "g");
60 if (is_ht)
61 strcat(name, "n");
62
63 return 0;
64 }
65 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
66
67 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
68 u32 *mode, char *extra)
69 {
70 struct wireless_dev *wdev = dev->ieee80211_ptr;
71 struct cfg80211_registered_device *rdev;
72 struct vif_params vifparams;
73 enum nl80211_iftype type;
74 int ret;
75
76 rdev = wiphy_to_dev(wdev->wiphy);
77
78 switch (*mode) {
79 case IW_MODE_INFRA:
80 type = NL80211_IFTYPE_STATION;
81 break;
82 case IW_MODE_ADHOC:
83 type = NL80211_IFTYPE_ADHOC;
84 break;
85 case IW_MODE_REPEAT:
86 type = NL80211_IFTYPE_WDS;
87 break;
88 case IW_MODE_MONITOR:
89 type = NL80211_IFTYPE_MONITOR;
90 break;
91 default:
92 return -EINVAL;
93 }
94
95 if (type == wdev->iftype)
96 return 0;
97
98 memset(&vifparams, 0, sizeof(vifparams));
99
100 cfg80211_lock_rdev(rdev);
101 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
102 cfg80211_unlock_rdev(rdev);
103
104 return ret;
105 }
106 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
107
108 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
109 u32 *mode, char *extra)
110 {
111 struct wireless_dev *wdev = dev->ieee80211_ptr;
112
113 if (!wdev)
114 return -EOPNOTSUPP;
115
116 switch (wdev->iftype) {
117 case NL80211_IFTYPE_AP:
118 *mode = IW_MODE_MASTER;
119 break;
120 case NL80211_IFTYPE_STATION:
121 *mode = IW_MODE_INFRA;
122 break;
123 case NL80211_IFTYPE_ADHOC:
124 *mode = IW_MODE_ADHOC;
125 break;
126 case NL80211_IFTYPE_MONITOR:
127 *mode = IW_MODE_MONITOR;
128 break;
129 case NL80211_IFTYPE_WDS:
130 *mode = IW_MODE_REPEAT;
131 break;
132 case NL80211_IFTYPE_AP_VLAN:
133 *mode = IW_MODE_SECOND; /* FIXME */
134 break;
135 default:
136 *mode = IW_MODE_AUTO;
137 break;
138 }
139 return 0;
140 }
141 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
142
143
144 int cfg80211_wext_giwrange(struct net_device *dev,
145 struct iw_request_info *info,
146 struct iw_point *data, char *extra)
147 {
148 struct wireless_dev *wdev = dev->ieee80211_ptr;
149 struct iw_range *range = (struct iw_range *) extra;
150 enum ieee80211_band band;
151 int i, c = 0;
152
153 if (!wdev)
154 return -EOPNOTSUPP;
155
156 data->length = sizeof(struct iw_range);
157 memset(range, 0, sizeof(struct iw_range));
158
159 range->we_version_compiled = WIRELESS_EXT;
160 range->we_version_source = 21;
161 range->retry_capa = IW_RETRY_LIMIT;
162 range->retry_flags = IW_RETRY_LIMIT;
163 range->min_retry = 0;
164 range->max_retry = 255;
165 range->min_rts = 0;
166 range->max_rts = 2347;
167 range->min_frag = 256;
168 range->max_frag = 2346;
169
170 range->max_encoding_tokens = 4;
171
172 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
173
174 switch (wdev->wiphy->signal_type) {
175 case CFG80211_SIGNAL_TYPE_NONE:
176 break;
177 case CFG80211_SIGNAL_TYPE_MBM:
178 range->max_qual.level = -110;
179 range->max_qual.qual = 70;
180 range->avg_qual.qual = 35;
181 range->max_qual.updated |= IW_QUAL_DBM;
182 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
183 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
184 break;
185 case CFG80211_SIGNAL_TYPE_UNSPEC:
186 range->max_qual.level = 100;
187 range->max_qual.qual = 100;
188 range->avg_qual.qual = 50;
189 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
190 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
191 break;
192 }
193
194 range->avg_qual.level = range->max_qual.level / 2;
195 range->avg_qual.noise = range->max_qual.noise / 2;
196 range->avg_qual.updated = range->max_qual.updated;
197
198 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
199 switch (wdev->wiphy->cipher_suites[i]) {
200 case WLAN_CIPHER_SUITE_TKIP:
201 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
202 IW_ENC_CAPA_WPA);
203 break;
204
205 case WLAN_CIPHER_SUITE_CCMP:
206 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
207 IW_ENC_CAPA_WPA2);
208 break;
209
210 case WLAN_CIPHER_SUITE_WEP40:
211 range->encoding_size[range->num_encoding_sizes++] =
212 WLAN_KEY_LEN_WEP40;
213 break;
214
215 case WLAN_CIPHER_SUITE_WEP104:
216 range->encoding_size[range->num_encoding_sizes++] =
217 WLAN_KEY_LEN_WEP104;
218 break;
219 }
220 }
221
222 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
223 struct ieee80211_supported_band *sband;
224
225 sband = wdev->wiphy->bands[band];
226
227 if (!sband)
228 continue;
229
230 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
231 struct ieee80211_channel *chan = &sband->channels[i];
232
233 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
234 range->freq[c].i =
235 ieee80211_frequency_to_channel(
236 chan->center_freq);
237 range->freq[c].m = chan->center_freq;
238 range->freq[c].e = 6;
239 c++;
240 }
241 }
242 }
243 range->num_channels = c;
244 range->num_frequency = c;
245
246 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
247 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
248 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
249
250 if (wdev->wiphy->max_scan_ssids > 0)
251 range->scan_capa |= IW_SCAN_CAPA_ESSID;
252
253 return 0;
254 }
255 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
256
257
258 /**
259 * cfg80211_wext_freq - get wext frequency for non-"auto"
260 * @wiphy: the wiphy
261 * @freq: the wext freq encoding
262 *
263 * Returns a frequency, or a negative error code, or 0 for auto.
264 */
265 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
266 {
267 /*
268 * Parse frequency - return 0 for auto and
269 * -EINVAL for impossible things.
270 */
271 if (freq->e == 0) {
272 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
273 if (freq->m < 0)
274 return 0;
275 if (freq->m > 14)
276 band = IEEE80211_BAND_5GHZ;
277 return ieee80211_channel_to_frequency(freq->m, band);
278 } else {
279 int i, div = 1000000;
280 for (i = 0; i < freq->e; i++)
281 div /= 10;
282 if (div <= 0)
283 return -EINVAL;
284 return freq->m / div;
285 }
286 }
287
288 int cfg80211_wext_siwrts(struct net_device *dev,
289 struct iw_request_info *info,
290 struct iw_param *rts, char *extra)
291 {
292 struct wireless_dev *wdev = dev->ieee80211_ptr;
293 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
294 u32 orts = wdev->wiphy->rts_threshold;
295 int err;
296
297 if (rts->disabled || !rts->fixed)
298 wdev->wiphy->rts_threshold = (u32) -1;
299 else if (rts->value < 0)
300 return -EINVAL;
301 else
302 wdev->wiphy->rts_threshold = rts->value;
303
304 err = rdev->ops->set_wiphy_params(wdev->wiphy,
305 WIPHY_PARAM_RTS_THRESHOLD);
306 if (err)
307 wdev->wiphy->rts_threshold = orts;
308
309 return err;
310 }
311 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
312
313 int cfg80211_wext_giwrts(struct net_device *dev,
314 struct iw_request_info *info,
315 struct iw_param *rts, char *extra)
316 {
317 struct wireless_dev *wdev = dev->ieee80211_ptr;
318
319 rts->value = wdev->wiphy->rts_threshold;
320 rts->disabled = rts->value == (u32) -1;
321 rts->fixed = 1;
322
323 return 0;
324 }
325 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
326
327 int cfg80211_wext_siwfrag(struct net_device *dev,
328 struct iw_request_info *info,
329 struct iw_param *frag, char *extra)
330 {
331 struct wireless_dev *wdev = dev->ieee80211_ptr;
332 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
333 u32 ofrag = wdev->wiphy->frag_threshold;
334 int err;
335
336 if (frag->disabled || !frag->fixed)
337 wdev->wiphy->frag_threshold = (u32) -1;
338 else if (frag->value < 256)
339 return -EINVAL;
340 else {
341 /* Fragment length must be even, so strip LSB. */
342 wdev->wiphy->frag_threshold = frag->value & ~0x1;
343 }
344
345 err = rdev->ops->set_wiphy_params(wdev->wiphy,
346 WIPHY_PARAM_FRAG_THRESHOLD);
347 if (err)
348 wdev->wiphy->frag_threshold = ofrag;
349
350 return err;
351 }
352 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
353
354 int cfg80211_wext_giwfrag(struct net_device *dev,
355 struct iw_request_info *info,
356 struct iw_param *frag, char *extra)
357 {
358 struct wireless_dev *wdev = dev->ieee80211_ptr;
359
360 frag->value = wdev->wiphy->frag_threshold;
361 frag->disabled = frag->value == (u32) -1;
362 frag->fixed = 1;
363
364 return 0;
365 }
366 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
367
368 static int cfg80211_wext_siwretry(struct net_device *dev,
369 struct iw_request_info *info,
370 struct iw_param *retry, char *extra)
371 {
372 struct wireless_dev *wdev = dev->ieee80211_ptr;
373 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
374 u32 changed = 0;
375 u8 olong = wdev->wiphy->retry_long;
376 u8 oshort = wdev->wiphy->retry_short;
377 int err;
378
379 if (retry->disabled ||
380 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
381 return -EINVAL;
382
383 if (retry->flags & IW_RETRY_LONG) {
384 wdev->wiphy->retry_long = retry->value;
385 changed |= WIPHY_PARAM_RETRY_LONG;
386 } else if (retry->flags & IW_RETRY_SHORT) {
387 wdev->wiphy->retry_short = retry->value;
388 changed |= WIPHY_PARAM_RETRY_SHORT;
389 } else {
390 wdev->wiphy->retry_short = retry->value;
391 wdev->wiphy->retry_long = retry->value;
392 changed |= WIPHY_PARAM_RETRY_LONG;
393 changed |= WIPHY_PARAM_RETRY_SHORT;
394 }
395
396 if (!changed)
397 return 0;
398
399 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
400 if (err) {
401 wdev->wiphy->retry_short = oshort;
402 wdev->wiphy->retry_long = olong;
403 }
404
405 return err;
406 }
407
408 int cfg80211_wext_giwretry(struct net_device *dev,
409 struct iw_request_info *info,
410 struct iw_param *retry, char *extra)
411 {
412 struct wireless_dev *wdev = dev->ieee80211_ptr;
413
414 retry->disabled = 0;
415
416 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
417 /*
418 * First return short value, iwconfig will ask long value
419 * later if needed
420 */
421 retry->flags |= IW_RETRY_LIMIT;
422 retry->value = wdev->wiphy->retry_short;
423 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
424 retry->flags |= IW_RETRY_LONG;
425
426 return 0;
427 }
428
429 if (retry->flags & IW_RETRY_LONG) {
430 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
431 retry->value = wdev->wiphy->retry_long;
432 }
433
434 return 0;
435 }
436 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
437
438 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
439 struct net_device *dev, bool pairwise,
440 const u8 *addr, bool remove, bool tx_key,
441 int idx, struct key_params *params)
442 {
443 struct wireless_dev *wdev = dev->ieee80211_ptr;
444 int err, i;
445 bool rejoin = false;
446
447 if (pairwise && !addr)
448 return -EINVAL;
449
450 if (!wdev->wext.keys) {
451 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
452 GFP_KERNEL);
453 if (!wdev->wext.keys)
454 return -ENOMEM;
455 for (i = 0; i < 6; i++)
456 wdev->wext.keys->params[i].key =
457 wdev->wext.keys->data[i];
458 }
459
460 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
461 wdev->iftype != NL80211_IFTYPE_STATION)
462 return -EOPNOTSUPP;
463
464 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
465 if (!wdev->current_bss)
466 return -ENOLINK;
467
468 if (!rdev->ops->set_default_mgmt_key)
469 return -EOPNOTSUPP;
470
471 if (idx < 4 || idx > 5)
472 return -EINVAL;
473 } else if (idx < 0 || idx > 3)
474 return -EINVAL;
475
476 if (remove) {
477 err = 0;
478 if (wdev->current_bss) {
479 /*
480 * If removing the current TX key, we will need to
481 * join a new IBSS without the privacy bit clear.
482 */
483 if (idx == wdev->wext.default_key &&
484 wdev->iftype == NL80211_IFTYPE_ADHOC) {
485 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
486 rejoin = true;
487 }
488
489 if (!pairwise && addr &&
490 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
491 err = -ENOENT;
492 else
493 err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
494 pairwise, addr);
495 }
496 wdev->wext.connect.privacy = false;
497 /*
498 * Applications using wireless extensions expect to be
499 * able to delete keys that don't exist, so allow that.
500 */
501 if (err == -ENOENT)
502 err = 0;
503 if (!err) {
504 if (!addr) {
505 wdev->wext.keys->params[idx].key_len = 0;
506 wdev->wext.keys->params[idx].cipher = 0;
507 }
508 if (idx == wdev->wext.default_key)
509 wdev->wext.default_key = -1;
510 else if (idx == wdev->wext.default_mgmt_key)
511 wdev->wext.default_mgmt_key = -1;
512 }
513
514 if (!err && rejoin)
515 err = cfg80211_ibss_wext_join(rdev, wdev);
516
517 return err;
518 }
519
520 if (addr)
521 tx_key = false;
522
523 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
524 return -EINVAL;
525
526 err = 0;
527 if (wdev->current_bss)
528 err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
529 pairwise, addr, params);
530 if (err)
531 return err;
532
533 if (!addr) {
534 wdev->wext.keys->params[idx] = *params;
535 memcpy(wdev->wext.keys->data[idx],
536 params->key, params->key_len);
537 wdev->wext.keys->params[idx].key =
538 wdev->wext.keys->data[idx];
539 }
540
541 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
542 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
543 (tx_key || (!addr && wdev->wext.default_key == -1))) {
544 if (wdev->current_bss) {
545 /*
546 * If we are getting a new TX key from not having
547 * had one before we need to join a new IBSS with
548 * the privacy bit set.
549 */
550 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
551 wdev->wext.default_key == -1) {
552 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
553 rejoin = true;
554 }
555 err = rdev->ops->set_default_key(&rdev->wiphy, dev,
556 idx, true, true);
557 }
558 if (!err) {
559 wdev->wext.default_key = idx;
560 if (rejoin)
561 err = cfg80211_ibss_wext_join(rdev, wdev);
562 }
563 return err;
564 }
565
566 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
567 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
568 if (wdev->current_bss)
569 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
570 dev, idx);
571 if (!err)
572 wdev->wext.default_mgmt_key = idx;
573 return err;
574 }
575
576 return 0;
577 }
578
579 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
580 struct net_device *dev, bool pairwise,
581 const u8 *addr, bool remove, bool tx_key,
582 int idx, struct key_params *params)
583 {
584 int err;
585
586 /* devlist mutex needed for possible IBSS re-join */
587 mutex_lock(&rdev->devlist_mtx);
588 wdev_lock(dev->ieee80211_ptr);
589 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
590 remove, tx_key, idx, params);
591 wdev_unlock(dev->ieee80211_ptr);
592 mutex_unlock(&rdev->devlist_mtx);
593
594 return err;
595 }
596
597 static int cfg80211_wext_siwencode(struct net_device *dev,
598 struct iw_request_info *info,
599 struct iw_point *erq, char *keybuf)
600 {
601 struct wireless_dev *wdev = dev->ieee80211_ptr;
602 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
603 int idx, err;
604 bool remove = false;
605 struct key_params params;
606
607 if (wdev->iftype != NL80211_IFTYPE_STATION &&
608 wdev->iftype != NL80211_IFTYPE_ADHOC)
609 return -EOPNOTSUPP;
610
611 /* no use -- only MFP (set_default_mgmt_key) is optional */
612 if (!rdev->ops->del_key ||
613 !rdev->ops->add_key ||
614 !rdev->ops->set_default_key)
615 return -EOPNOTSUPP;
616
617 idx = erq->flags & IW_ENCODE_INDEX;
618 if (idx == 0) {
619 idx = wdev->wext.default_key;
620 if (idx < 0)
621 idx = 0;
622 } else if (idx < 1 || idx > 4)
623 return -EINVAL;
624 else
625 idx--;
626
627 if (erq->flags & IW_ENCODE_DISABLED)
628 remove = true;
629 else if (erq->length == 0) {
630 /* No key data - just set the default TX key index */
631 err = 0;
632 wdev_lock(wdev);
633 if (wdev->current_bss)
634 err = rdev->ops->set_default_key(&rdev->wiphy, dev,
635 idx, true, true);
636 if (!err)
637 wdev->wext.default_key = idx;
638 wdev_unlock(wdev);
639 return err;
640 }
641
642 memset(&params, 0, sizeof(params));
643 params.key = keybuf;
644 params.key_len = erq->length;
645 if (erq->length == 5)
646 params.cipher = WLAN_CIPHER_SUITE_WEP40;
647 else if (erq->length == 13)
648 params.cipher = WLAN_CIPHER_SUITE_WEP104;
649 else if (!remove)
650 return -EINVAL;
651
652 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
653 wdev->wext.default_key == -1,
654 idx, &params);
655 }
656
657 static int cfg80211_wext_siwencodeext(struct net_device *dev,
658 struct iw_request_info *info,
659 struct iw_point *erq, char *extra)
660 {
661 struct wireless_dev *wdev = dev->ieee80211_ptr;
662 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
663 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
664 const u8 *addr;
665 int idx;
666 bool remove = false;
667 struct key_params params;
668 u32 cipher;
669
670 if (wdev->iftype != NL80211_IFTYPE_STATION &&
671 wdev->iftype != NL80211_IFTYPE_ADHOC)
672 return -EOPNOTSUPP;
673
674 /* no use -- only MFP (set_default_mgmt_key) is optional */
675 if (!rdev->ops->del_key ||
676 !rdev->ops->add_key ||
677 !rdev->ops->set_default_key)
678 return -EOPNOTSUPP;
679
680 switch (ext->alg) {
681 case IW_ENCODE_ALG_NONE:
682 remove = true;
683 cipher = 0;
684 break;
685 case IW_ENCODE_ALG_WEP:
686 if (ext->key_len == 5)
687 cipher = WLAN_CIPHER_SUITE_WEP40;
688 else if (ext->key_len == 13)
689 cipher = WLAN_CIPHER_SUITE_WEP104;
690 else
691 return -EINVAL;
692 break;
693 case IW_ENCODE_ALG_TKIP:
694 cipher = WLAN_CIPHER_SUITE_TKIP;
695 break;
696 case IW_ENCODE_ALG_CCMP:
697 cipher = WLAN_CIPHER_SUITE_CCMP;
698 break;
699 case IW_ENCODE_ALG_AES_CMAC:
700 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
701 break;
702 default:
703 return -EOPNOTSUPP;
704 }
705
706 if (erq->flags & IW_ENCODE_DISABLED)
707 remove = true;
708
709 idx = erq->flags & IW_ENCODE_INDEX;
710 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
711 if (idx < 4 || idx > 5) {
712 idx = wdev->wext.default_mgmt_key;
713 if (idx < 0)
714 return -EINVAL;
715 } else
716 idx--;
717 } else {
718 if (idx < 1 || idx > 4) {
719 idx = wdev->wext.default_key;
720 if (idx < 0)
721 return -EINVAL;
722 } else
723 idx--;
724 }
725
726 addr = ext->addr.sa_data;
727 if (is_broadcast_ether_addr(addr))
728 addr = NULL;
729
730 memset(&params, 0, sizeof(params));
731 params.key = ext->key;
732 params.key_len = ext->key_len;
733 params.cipher = cipher;
734
735 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
736 params.seq = ext->rx_seq;
737 params.seq_len = 6;
738 }
739
740 return cfg80211_set_encryption(
741 rdev, dev,
742 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
743 addr, remove,
744 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
745 idx, &params);
746 }
747
748 static int cfg80211_wext_giwencode(struct net_device *dev,
749 struct iw_request_info *info,
750 struct iw_point *erq, char *keybuf)
751 {
752 struct wireless_dev *wdev = dev->ieee80211_ptr;
753 int idx;
754
755 if (wdev->iftype != NL80211_IFTYPE_STATION &&
756 wdev->iftype != NL80211_IFTYPE_ADHOC)
757 return -EOPNOTSUPP;
758
759 idx = erq->flags & IW_ENCODE_INDEX;
760 if (idx == 0) {
761 idx = wdev->wext.default_key;
762 if (idx < 0)
763 idx = 0;
764 } else if (idx < 1 || idx > 4)
765 return -EINVAL;
766 else
767 idx--;
768
769 erq->flags = idx + 1;
770
771 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
772 erq->flags |= IW_ENCODE_DISABLED;
773 erq->length = 0;
774 return 0;
775 }
776
777 erq->length = min_t(size_t, erq->length,
778 wdev->wext.keys->params[idx].key_len);
779 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
780 erq->flags |= IW_ENCODE_ENABLED;
781
782 return 0;
783 }
784
785 static int cfg80211_wext_siwfreq(struct net_device *dev,
786 struct iw_request_info *info,
787 struct iw_freq *wextfreq, char *extra)
788 {
789 struct wireless_dev *wdev = dev->ieee80211_ptr;
790 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
791 int freq, err;
792
793 switch (wdev->iftype) {
794 case NL80211_IFTYPE_STATION:
795 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
796 case NL80211_IFTYPE_ADHOC:
797 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
798 case NL80211_IFTYPE_MONITOR:
799 case NL80211_IFTYPE_WDS:
800 case NL80211_IFTYPE_MESH_POINT:
801 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
802 if (freq < 0)
803 return freq;
804 if (freq == 0)
805 return -EINVAL;
806 mutex_lock(&rdev->devlist_mtx);
807 wdev_lock(wdev);
808 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
809 wdev_unlock(wdev);
810 mutex_unlock(&rdev->devlist_mtx);
811 return err;
812 default:
813 return -EOPNOTSUPP;
814 }
815 }
816
817 static int cfg80211_wext_giwfreq(struct net_device *dev,
818 struct iw_request_info *info,
819 struct iw_freq *freq, char *extra)
820 {
821 struct wireless_dev *wdev = dev->ieee80211_ptr;
822 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
823 struct ieee80211_channel *chan;
824
825 switch (wdev->iftype) {
826 case NL80211_IFTYPE_STATION:
827 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
828 case NL80211_IFTYPE_ADHOC:
829 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
830 case NL80211_IFTYPE_MONITOR:
831 if (!rdev->ops->get_channel)
832 return -EINVAL;
833
834 chan = rdev->ops->get_channel(wdev->wiphy);
835 if (!chan)
836 return -EINVAL;
837 freq->m = chan->center_freq;
838 freq->e = 6;
839 return 0;
840 default:
841 if (!wdev->channel)
842 return -EINVAL;
843 freq->m = wdev->channel->center_freq;
844 freq->e = 6;
845 return 0;
846 }
847 }
848
849 static int cfg80211_wext_siwtxpower(struct net_device *dev,
850 struct iw_request_info *info,
851 union iwreq_data *data, char *extra)
852 {
853 struct wireless_dev *wdev = dev->ieee80211_ptr;
854 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
855 enum nl80211_tx_power_setting type;
856 int dbm = 0;
857
858 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
859 return -EINVAL;
860 if (data->txpower.flags & IW_TXPOW_RANGE)
861 return -EINVAL;
862
863 if (!rdev->ops->set_tx_power)
864 return -EOPNOTSUPP;
865
866 /* only change when not disabling */
867 if (!data->txpower.disabled) {
868 rfkill_set_sw_state(rdev->rfkill, false);
869
870 if (data->txpower.fixed) {
871 /*
872 * wext doesn't support negative values, see
873 * below where it's for automatic
874 */
875 if (data->txpower.value < 0)
876 return -EINVAL;
877 dbm = data->txpower.value;
878 type = NL80211_TX_POWER_FIXED;
879 /* TODO: do regulatory check! */
880 } else {
881 /*
882 * Automatic power level setting, max being the value
883 * passed in from userland.
884 */
885 if (data->txpower.value < 0) {
886 type = NL80211_TX_POWER_AUTOMATIC;
887 } else {
888 dbm = data->txpower.value;
889 type = NL80211_TX_POWER_LIMITED;
890 }
891 }
892 } else {
893 rfkill_set_sw_state(rdev->rfkill, true);
894 schedule_work(&rdev->rfkill_sync);
895 return 0;
896 }
897
898 return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
899 }
900
901 static int cfg80211_wext_giwtxpower(struct net_device *dev,
902 struct iw_request_info *info,
903 union iwreq_data *data, char *extra)
904 {
905 struct wireless_dev *wdev = dev->ieee80211_ptr;
906 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
907 int err, val;
908
909 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
910 return -EINVAL;
911 if (data->txpower.flags & IW_TXPOW_RANGE)
912 return -EINVAL;
913
914 if (!rdev->ops->get_tx_power)
915 return -EOPNOTSUPP;
916
917 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
918 if (err)
919 return err;
920
921 /* well... oh well */
922 data->txpower.fixed = 1;
923 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
924 data->txpower.value = val;
925 data->txpower.flags = IW_TXPOW_DBM;
926
927 return 0;
928 }
929
930 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
931 s32 auth_alg)
932 {
933 int nr_alg = 0;
934
935 if (!auth_alg)
936 return -EINVAL;
937
938 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
939 IW_AUTH_ALG_SHARED_KEY |
940 IW_AUTH_ALG_LEAP))
941 return -EINVAL;
942
943 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
944 nr_alg++;
945 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
946 }
947
948 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
949 nr_alg++;
950 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
951 }
952
953 if (auth_alg & IW_AUTH_ALG_LEAP) {
954 nr_alg++;
955 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
956 }
957
958 if (nr_alg > 1)
959 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
960
961 return 0;
962 }
963
964 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
965 {
966 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
967 IW_AUTH_WPA_VERSION_WPA2|
968 IW_AUTH_WPA_VERSION_DISABLED))
969 return -EINVAL;
970
971 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
972 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
973 IW_AUTH_WPA_VERSION_WPA2)))
974 return -EINVAL;
975
976 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
977 wdev->wext.connect.crypto.wpa_versions &=
978 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
979
980 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
981 wdev->wext.connect.crypto.wpa_versions |=
982 NL80211_WPA_VERSION_1;
983
984 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
985 wdev->wext.connect.crypto.wpa_versions |=
986 NL80211_WPA_VERSION_2;
987
988 return 0;
989 }
990
991 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
992 {
993 if (cipher & IW_AUTH_CIPHER_WEP40)
994 wdev->wext.connect.crypto.cipher_group =
995 WLAN_CIPHER_SUITE_WEP40;
996 else if (cipher & IW_AUTH_CIPHER_WEP104)
997 wdev->wext.connect.crypto.cipher_group =
998 WLAN_CIPHER_SUITE_WEP104;
999 else if (cipher & IW_AUTH_CIPHER_TKIP)
1000 wdev->wext.connect.crypto.cipher_group =
1001 WLAN_CIPHER_SUITE_TKIP;
1002 else if (cipher & IW_AUTH_CIPHER_CCMP)
1003 wdev->wext.connect.crypto.cipher_group =
1004 WLAN_CIPHER_SUITE_CCMP;
1005 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1006 wdev->wext.connect.crypto.cipher_group =
1007 WLAN_CIPHER_SUITE_AES_CMAC;
1008 else if (cipher & IW_AUTH_CIPHER_NONE)
1009 wdev->wext.connect.crypto.cipher_group = 0;
1010 else
1011 return -EINVAL;
1012
1013 return 0;
1014 }
1015
1016 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1017 {
1018 int nr_ciphers = 0;
1019 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1020
1021 if (cipher & IW_AUTH_CIPHER_WEP40) {
1022 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1023 nr_ciphers++;
1024 }
1025
1026 if (cipher & IW_AUTH_CIPHER_WEP104) {
1027 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1028 nr_ciphers++;
1029 }
1030
1031 if (cipher & IW_AUTH_CIPHER_TKIP) {
1032 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1033 nr_ciphers++;
1034 }
1035
1036 if (cipher & IW_AUTH_CIPHER_CCMP) {
1037 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1038 nr_ciphers++;
1039 }
1040
1041 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1042 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1043 nr_ciphers++;
1044 }
1045
1046 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1047
1048 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1049
1050 return 0;
1051 }
1052
1053
1054 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1055 {
1056 int nr_akm_suites = 0;
1057
1058 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1059 IW_AUTH_KEY_MGMT_PSK))
1060 return -EINVAL;
1061
1062 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1063 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1064 WLAN_AKM_SUITE_8021X;
1065 nr_akm_suites++;
1066 }
1067
1068 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1069 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1070 WLAN_AKM_SUITE_PSK;
1071 nr_akm_suites++;
1072 }
1073
1074 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1075
1076 return 0;
1077 }
1078
1079 static int cfg80211_wext_siwauth(struct net_device *dev,
1080 struct iw_request_info *info,
1081 struct iw_param *data, char *extra)
1082 {
1083 struct wireless_dev *wdev = dev->ieee80211_ptr;
1084
1085 if (wdev->iftype != NL80211_IFTYPE_STATION)
1086 return -EOPNOTSUPP;
1087
1088 switch (data->flags & IW_AUTH_INDEX) {
1089 case IW_AUTH_PRIVACY_INVOKED:
1090 wdev->wext.connect.privacy = data->value;
1091 return 0;
1092 case IW_AUTH_WPA_VERSION:
1093 return cfg80211_set_wpa_version(wdev, data->value);
1094 case IW_AUTH_CIPHER_GROUP:
1095 return cfg80211_set_cipher_group(wdev, data->value);
1096 case IW_AUTH_KEY_MGMT:
1097 return cfg80211_set_key_mgt(wdev, data->value);
1098 case IW_AUTH_CIPHER_PAIRWISE:
1099 return cfg80211_set_cipher_pairwise(wdev, data->value);
1100 case IW_AUTH_80211_AUTH_ALG:
1101 return cfg80211_set_auth_alg(wdev, data->value);
1102 case IW_AUTH_WPA_ENABLED:
1103 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1104 case IW_AUTH_DROP_UNENCRYPTED:
1105 case IW_AUTH_MFP:
1106 return 0;
1107 default:
1108 return -EOPNOTSUPP;
1109 }
1110 }
1111
1112 static int cfg80211_wext_giwauth(struct net_device *dev,
1113 struct iw_request_info *info,
1114 struct iw_param *data, char *extra)
1115 {
1116 /* XXX: what do we need? */
1117
1118 return -EOPNOTSUPP;
1119 }
1120
1121 static int cfg80211_wext_siwpower(struct net_device *dev,
1122 struct iw_request_info *info,
1123 struct iw_param *wrq, char *extra)
1124 {
1125 struct wireless_dev *wdev = dev->ieee80211_ptr;
1126 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1127 bool ps = wdev->ps;
1128 int timeout = wdev->ps_timeout;
1129 int err;
1130
1131 if (wdev->iftype != NL80211_IFTYPE_STATION)
1132 return -EINVAL;
1133
1134 if (!rdev->ops->set_power_mgmt)
1135 return -EOPNOTSUPP;
1136
1137 if (wrq->disabled) {
1138 ps = false;
1139 } else {
1140 switch (wrq->flags & IW_POWER_MODE) {
1141 case IW_POWER_ON: /* If not specified */
1142 case IW_POWER_MODE: /* If set all mask */
1143 case IW_POWER_ALL_R: /* If explicitely state all */
1144 ps = true;
1145 break;
1146 default: /* Otherwise we ignore */
1147 return -EINVAL;
1148 }
1149
1150 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1151 return -EINVAL;
1152
1153 if (wrq->flags & IW_POWER_TIMEOUT)
1154 timeout = wrq->value / 1000;
1155 }
1156
1157 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1158 if (err)
1159 return err;
1160
1161 wdev->ps = ps;
1162 wdev->ps_timeout = timeout;
1163
1164 return 0;
1165
1166 }
1167
1168 static int cfg80211_wext_giwpower(struct net_device *dev,
1169 struct iw_request_info *info,
1170 struct iw_param *wrq, char *extra)
1171 {
1172 struct wireless_dev *wdev = dev->ieee80211_ptr;
1173
1174 wrq->disabled = !wdev->ps;
1175
1176 return 0;
1177 }
1178
1179 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1180 struct iw_request_info *info,
1181 struct sockaddr *addr, char *extra)
1182 {
1183 struct wireless_dev *wdev = dev->ieee80211_ptr;
1184 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1185 int err;
1186
1187 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1188 return -EINVAL;
1189
1190 if (addr->sa_family != ARPHRD_ETHER)
1191 return -EINVAL;
1192
1193 if (netif_running(dev))
1194 return -EBUSY;
1195
1196 if (!rdev->ops->set_wds_peer)
1197 return -EOPNOTSUPP;
1198
1199 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1200 if (err)
1201 return err;
1202
1203 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1204
1205 return 0;
1206 }
1207
1208 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1209 struct iw_request_info *info,
1210 struct sockaddr *addr, char *extra)
1211 {
1212 struct wireless_dev *wdev = dev->ieee80211_ptr;
1213
1214 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1215 return -EINVAL;
1216
1217 addr->sa_family = ARPHRD_ETHER;
1218 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1219
1220 return 0;
1221 }
1222
1223 static int cfg80211_wext_siwrate(struct net_device *dev,
1224 struct iw_request_info *info,
1225 struct iw_param *rate, char *extra)
1226 {
1227 struct wireless_dev *wdev = dev->ieee80211_ptr;
1228 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1229 struct cfg80211_bitrate_mask mask;
1230 u32 fixed, maxrate;
1231 struct ieee80211_supported_band *sband;
1232 int band, ridx;
1233 bool match = false;
1234
1235 if (!rdev->ops->set_bitrate_mask)
1236 return -EOPNOTSUPP;
1237
1238 memset(&mask, 0, sizeof(mask));
1239 fixed = 0;
1240 maxrate = (u32)-1;
1241
1242 if (rate->value < 0) {
1243 /* nothing */
1244 } else if (rate->fixed) {
1245 fixed = rate->value / 100000;
1246 } else {
1247 maxrate = rate->value / 100000;
1248 }
1249
1250 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1251 sband = wdev->wiphy->bands[band];
1252 if (sband == NULL)
1253 continue;
1254 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1255 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1256 if (fixed == srate->bitrate) {
1257 mask.control[band].legacy = 1 << ridx;
1258 match = true;
1259 break;
1260 }
1261 if (srate->bitrate <= maxrate) {
1262 mask.control[band].legacy |= 1 << ridx;
1263 match = true;
1264 }
1265 }
1266 }
1267
1268 if (!match)
1269 return -EINVAL;
1270
1271 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1272 }
1273
1274 static int cfg80211_wext_giwrate(struct net_device *dev,
1275 struct iw_request_info *info,
1276 struct iw_param *rate, char *extra)
1277 {
1278 struct wireless_dev *wdev = dev->ieee80211_ptr;
1279 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1280 /* we are under RTNL - globally locked - so can use a static struct */
1281 static struct station_info sinfo;
1282 u8 addr[ETH_ALEN];
1283 int err;
1284
1285 if (wdev->iftype != NL80211_IFTYPE_STATION)
1286 return -EOPNOTSUPP;
1287
1288 if (!rdev->ops->get_station)
1289 return -EOPNOTSUPP;
1290
1291 err = 0;
1292 wdev_lock(wdev);
1293 if (wdev->current_bss)
1294 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1295 else
1296 err = -EOPNOTSUPP;
1297 wdev_unlock(wdev);
1298 if (err)
1299 return err;
1300
1301 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1302 if (err)
1303 return err;
1304
1305 if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1306 return -EOPNOTSUPP;
1307
1308 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1309
1310 return 0;
1311 }
1312
1313 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1314 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1315 {
1316 struct wireless_dev *wdev = dev->ieee80211_ptr;
1317 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1318 /* we are under RTNL - globally locked - so can use static structs */
1319 static struct iw_statistics wstats;
1320 static struct station_info sinfo;
1321 u8 bssid[ETH_ALEN];
1322
1323 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1324 return NULL;
1325
1326 if (!rdev->ops->get_station)
1327 return NULL;
1328
1329 /* Grab BSSID of current BSS, if any */
1330 wdev_lock(wdev);
1331 if (!wdev->current_bss) {
1332 wdev_unlock(wdev);
1333 return NULL;
1334 }
1335 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1336 wdev_unlock(wdev);
1337
1338 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1339 return NULL;
1340
1341 memset(&wstats, 0, sizeof(wstats));
1342
1343 switch (rdev->wiphy.signal_type) {
1344 case CFG80211_SIGNAL_TYPE_MBM:
1345 if (sinfo.filled & STATION_INFO_SIGNAL) {
1346 int sig = sinfo.signal;
1347 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1348 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1349 wstats.qual.updated |= IW_QUAL_DBM;
1350 wstats.qual.level = sig;
1351 if (sig < -110)
1352 sig = -110;
1353 else if (sig > -40)
1354 sig = -40;
1355 wstats.qual.qual = sig + 110;
1356 break;
1357 }
1358 case CFG80211_SIGNAL_TYPE_UNSPEC:
1359 if (sinfo.filled & STATION_INFO_SIGNAL) {
1360 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1361 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1362 wstats.qual.level = sinfo.signal;
1363 wstats.qual.qual = sinfo.signal;
1364 break;
1365 }
1366 default:
1367 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1368 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1369 }
1370
1371 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1372 if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1373 wstats.discard.misc = sinfo.rx_dropped_misc;
1374 if (sinfo.filled & STATION_INFO_TX_FAILED)
1375 wstats.discard.retries = sinfo.tx_failed;
1376
1377 return &wstats;
1378 }
1379
1380 static int cfg80211_wext_siwap(struct net_device *dev,
1381 struct iw_request_info *info,
1382 struct sockaddr *ap_addr, char *extra)
1383 {
1384 struct wireless_dev *wdev = dev->ieee80211_ptr;
1385
1386 switch (wdev->iftype) {
1387 case NL80211_IFTYPE_ADHOC:
1388 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1389 case NL80211_IFTYPE_STATION:
1390 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1391 case NL80211_IFTYPE_WDS:
1392 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1393 default:
1394 return -EOPNOTSUPP;
1395 }
1396 }
1397
1398 static int cfg80211_wext_giwap(struct net_device *dev,
1399 struct iw_request_info *info,
1400 struct sockaddr *ap_addr, char *extra)
1401 {
1402 struct wireless_dev *wdev = dev->ieee80211_ptr;
1403
1404 switch (wdev->iftype) {
1405 case NL80211_IFTYPE_ADHOC:
1406 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1407 case NL80211_IFTYPE_STATION:
1408 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1409 case NL80211_IFTYPE_WDS:
1410 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1411 default:
1412 return -EOPNOTSUPP;
1413 }
1414 }
1415
1416 static int cfg80211_wext_siwessid(struct net_device *dev,
1417 struct iw_request_info *info,
1418 struct iw_point *data, char *ssid)
1419 {
1420 struct wireless_dev *wdev = dev->ieee80211_ptr;
1421
1422 switch (wdev->iftype) {
1423 case NL80211_IFTYPE_ADHOC:
1424 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1425 case NL80211_IFTYPE_STATION:
1426 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1427 default:
1428 return -EOPNOTSUPP;
1429 }
1430 }
1431
1432 static int cfg80211_wext_giwessid(struct net_device *dev,
1433 struct iw_request_info *info,
1434 struct iw_point *data, char *ssid)
1435 {
1436 struct wireless_dev *wdev = dev->ieee80211_ptr;
1437
1438 data->flags = 0;
1439 data->length = 0;
1440
1441 switch (wdev->iftype) {
1442 case NL80211_IFTYPE_ADHOC:
1443 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1444 case NL80211_IFTYPE_STATION:
1445 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1446 default:
1447 return -EOPNOTSUPP;
1448 }
1449 }
1450
1451 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1452 struct iw_request_info *info,
1453 struct iw_point *data, char *extra)
1454 {
1455 struct wireless_dev *wdev = dev->ieee80211_ptr;
1456 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1457 struct cfg80211_pmksa cfg_pmksa;
1458 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1459
1460 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1461
1462 if (wdev->iftype != NL80211_IFTYPE_STATION)
1463 return -EINVAL;
1464
1465 cfg_pmksa.bssid = pmksa->bssid.sa_data;
1466 cfg_pmksa.pmkid = pmksa->pmkid;
1467
1468 switch (pmksa->cmd) {
1469 case IW_PMKSA_ADD:
1470 if (!rdev->ops->set_pmksa)
1471 return -EOPNOTSUPP;
1472
1473 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1474
1475 case IW_PMKSA_REMOVE:
1476 if (!rdev->ops->del_pmksa)
1477 return -EOPNOTSUPP;
1478
1479 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1480
1481 case IW_PMKSA_FLUSH:
1482 if (!rdev->ops->flush_pmksa)
1483 return -EOPNOTSUPP;
1484
1485 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1486
1487 default:
1488 return -EOPNOTSUPP;
1489 }
1490 }
1491
1492 static const iw_handler cfg80211_handlers[] = {
1493 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
1494 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
1495 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
1496 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
1497 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
1498 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
1499 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
1500 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
1501 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
1502 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
1503 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
1504 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
1505 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
1506 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
1507 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
1508 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
1509 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
1510 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
1511 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
1512 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
1513 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
1514 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
1515 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
1516 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
1517 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
1518 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
1519 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
1520 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
1521 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
1522 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
1523 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1524 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
1525 };
1526
1527 const struct iw_handler_def cfg80211_wext_handler = {
1528 .num_standard = ARRAY_SIZE(cfg80211_handlers),
1529 .standard = cfg80211_handlers,
1530 .get_wireless_stats = cfg80211_wireless_stats,
1531 };
Linux kernel - Deliverables
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