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Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
[linux-btrfs-devel.git] / net / wireless / wext-compat.c
blob62f121d1d9cbdb833d27990fc36b58f2e3ab22aa
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/wireless.h>
12 #include <linux/nl80211.h>
13 #include <linux/if_arp.h>
14 #include <linux/etherdevice.h>
15 #include <linux/slab.h>
16 #include <net/iw_handler.h>
17 #include <net/cfg80211.h>
18 #include <net/cfg80211-wext.h>
19 #include "wext-compat.h"
20 #include "core.h"
21
22 int cfg80211_wext_giwname(struct net_device *dev,
23 struct iw_request_info *info,
24 char *name, char *extra)
25 {
26 struct wireless_dev *wdev = dev->ieee80211_ptr;
27 struct ieee80211_supported_band *sband;
28 bool is_ht = false, is_a = false, is_b = false, is_g = false;
29
30 if (!wdev)
31 return -EOPNOTSUPP;
32
33 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
34 if (sband) {
35 is_a = true;
36 is_ht |= sband->ht_cap.ht_supported;
37 }
38
39 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
40 if (sband) {
41 int i;
42 /* Check for mandatory rates */
43 for (i = 0; i < sband->n_bitrates; i++) {
44 if (sband->bitrates[i].bitrate == 10)
45 is_b = true;
46 if (sband->bitrates[i].bitrate == 60)
47 is_g = true;
48 }
49 is_ht |= sband->ht_cap.ht_supported;
50 }
51
52 strcpy(name, "IEEE 802.11");
53 if (is_a)
54 strcat(name, "a");
55 if (is_b)
56 strcat(name, "b");
57 if (is_g)
58 strcat(name, "g");
59 if (is_ht)
60 strcat(name, "n");
61
62 return 0;
63 }
64 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
65
66 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
67 u32 *mode, char *extra)
68 {
69 struct wireless_dev *wdev = dev->ieee80211_ptr;
70 struct cfg80211_registered_device *rdev;
71 struct vif_params vifparams;
72 enum nl80211_iftype type;
73 int ret;
74
75 rdev = wiphy_to_dev(wdev->wiphy);
76
77 switch (*mode) {
78 case IW_MODE_INFRA:
79 type = NL80211_IFTYPE_STATION;
80 break;
81 case IW_MODE_ADHOC:
82 type = NL80211_IFTYPE_ADHOC;
83 break;
84 case IW_MODE_REPEAT:
85 type = NL80211_IFTYPE_WDS;
86 break;
87 case IW_MODE_MONITOR:
88 type = NL80211_IFTYPE_MONITOR;
89 break;
90 default:
91 return -EINVAL;
92 }
93
94 if (type == wdev->iftype)
95 return 0;
96
97 memset(&vifparams, 0, sizeof(vifparams));
98
99 cfg80211_lock_rdev(rdev);
100 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
101 cfg80211_unlock_rdev(rdev);
102
103 return ret;
104 }
105 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
106
107 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
108 u32 *mode, char *extra)
109 {
110 struct wireless_dev *wdev = dev->ieee80211_ptr;
111
112 if (!wdev)
113 return -EOPNOTSUPP;
114
115 switch (wdev->iftype) {
116 case NL80211_IFTYPE_AP:
117 *mode = IW_MODE_MASTER;
118 break;
119 case NL80211_IFTYPE_STATION:
120 *mode = IW_MODE_INFRA;
121 break;
122 case NL80211_IFTYPE_ADHOC:
123 *mode = IW_MODE_ADHOC;
124 break;
125 case NL80211_IFTYPE_MONITOR:
126 *mode = IW_MODE_MONITOR;
127 break;
128 case NL80211_IFTYPE_WDS:
129 *mode = IW_MODE_REPEAT;
130 break;
131 case NL80211_IFTYPE_AP_VLAN:
132 *mode = IW_MODE_SECOND; /* FIXME */
133 break;
134 default:
135 *mode = IW_MODE_AUTO;
136 break;
137 }
138 return 0;
139 }
140 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
141
142
143 int cfg80211_wext_giwrange(struct net_device *dev,
144 struct iw_request_info *info,
145 struct iw_point *data, char *extra)
146 {
147 struct wireless_dev *wdev = dev->ieee80211_ptr;
148 struct iw_range *range = (struct iw_range *) extra;
149 enum ieee80211_band band;
150 int i, c = 0;
151
152 if (!wdev)
153 return -EOPNOTSUPP;
154
155 data->length = sizeof(struct iw_range);
156 memset(range, 0, sizeof(struct iw_range));
157
158 range->we_version_compiled = WIRELESS_EXT;
159 range->we_version_source = 21;
160 range->retry_capa = IW_RETRY_LIMIT;
161 range->retry_flags = IW_RETRY_LIMIT;
162 range->min_retry = 0;
163 range->max_retry = 255;
164 range->min_rts = 0;
165 range->max_rts = 2347;
166 range->min_frag = 256;
167 range->max_frag = 2346;
168
169 range->max_encoding_tokens = 4;
170
171 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
172
173 switch (wdev->wiphy->signal_type) {
174 case CFG80211_SIGNAL_TYPE_NONE:
175 break;
176 case CFG80211_SIGNAL_TYPE_MBM:
177 range->max_qual.level = -110;
178 range->max_qual.qual = 70;
179 range->avg_qual.qual = 35;
180 range->max_qual.updated |= IW_QUAL_DBM;
181 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
182 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
183 break;
184 case CFG80211_SIGNAL_TYPE_UNSPEC:
185 range->max_qual.level = 100;
186 range->max_qual.qual = 100;
187 range->avg_qual.qual = 50;
188 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
189 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
190 break;
191 }
192
193 range->avg_qual.level = range->max_qual.level / 2;
194 range->avg_qual.noise = range->max_qual.noise / 2;
195 range->avg_qual.updated = range->max_qual.updated;
196
197 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
198 switch (wdev->wiphy->cipher_suites[i]) {
199 case WLAN_CIPHER_SUITE_TKIP:
200 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
201 IW_ENC_CAPA_WPA);
202 break;
203
204 case WLAN_CIPHER_SUITE_CCMP:
205 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
206 IW_ENC_CAPA_WPA2);
207 break;
208
209 case WLAN_CIPHER_SUITE_WEP40:
210 range->encoding_size[range->num_encoding_sizes++] =
211 WLAN_KEY_LEN_WEP40;
212 break;
213
214 case WLAN_CIPHER_SUITE_WEP104:
215 range->encoding_size[range->num_encoding_sizes++] =
216 WLAN_KEY_LEN_WEP104;
217 break;
218 }
219 }
220
221 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
222 struct ieee80211_supported_band *sband;
223
224 sband = wdev->wiphy->bands[band];
225
226 if (!sband)
227 continue;
228
229 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
230 struct ieee80211_channel *chan = &sband->channels[i];
231
232 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
233 range->freq[c].i =
234 ieee80211_frequency_to_channel(
235 chan->center_freq);
236 range->freq[c].m = chan->center_freq;
237 range->freq[c].e = 6;
238 c++;
239 }
240 }
241 }
242 range->num_channels = c;
243 range->num_frequency = c;
244
245 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
246 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
247 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
248
249 if (wdev->wiphy->max_scan_ssids > 0)
250 range->scan_capa |= IW_SCAN_CAPA_ESSID;
251
252 return 0;
253 }
254 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
255
256
257 /**
258 * cfg80211_wext_freq - get wext frequency for non-"auto"
259 * @wiphy: the wiphy
260 * @freq: the wext freq encoding
261 *
262 * Returns a frequency, or a negative error code, or 0 for auto.
263 */
264 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
265 {
266 /*
267 * Parse frequency - return 0 for auto and
268 * -EINVAL for impossible things.
269 */
270 if (freq->e == 0) {
271 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
272 if (freq->m < 0)
273 return 0;
274 if (freq->m > 14)
275 band = IEEE80211_BAND_5GHZ;
276 return ieee80211_channel_to_frequency(freq->m, band);
277 } else {
278 int i, div = 1000000;
279 for (i = 0; i < freq->e; i++)
280 div /= 10;
281 if (div <= 0)
282 return -EINVAL;
283 return freq->m / div;
284 }
285 }
286
287 int cfg80211_wext_siwrts(struct net_device *dev,
288 struct iw_request_info *info,
289 struct iw_param *rts, char *extra)
290 {
291 struct wireless_dev *wdev = dev->ieee80211_ptr;
292 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
293 u32 orts = wdev->wiphy->rts_threshold;
294 int err;
295
296 if (rts->disabled || !rts->fixed)
297 wdev->wiphy->rts_threshold = (u32) -1;
298 else if (rts->value < 0)
299 return -EINVAL;
300 else
301 wdev->wiphy->rts_threshold = rts->value;
302
303 err = rdev->ops->set_wiphy_params(wdev->wiphy,
304 WIPHY_PARAM_RTS_THRESHOLD);
305 if (err)
306 wdev->wiphy->rts_threshold = orts;
307
308 return err;
309 }
310 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
311
312 int cfg80211_wext_giwrts(struct net_device *dev,
313 struct iw_request_info *info,
314 struct iw_param *rts, char *extra)
315 {
316 struct wireless_dev *wdev = dev->ieee80211_ptr;
317
318 rts->value = wdev->wiphy->rts_threshold;
319 rts->disabled = rts->value == (u32) -1;
320 rts->fixed = 1;
321
322 return 0;
323 }
324 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
325
326 int cfg80211_wext_siwfrag(struct net_device *dev,
327 struct iw_request_info *info,
328 struct iw_param *frag, char *extra)
329 {
330 struct wireless_dev *wdev = dev->ieee80211_ptr;
331 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
332 u32 ofrag = wdev->wiphy->frag_threshold;
333 int err;
334
335 if (frag->disabled || !frag->fixed)
336 wdev->wiphy->frag_threshold = (u32) -1;
337 else if (frag->value < 256)
338 return -EINVAL;
339 else {
340 /* Fragment length must be even, so strip LSB. */
341 wdev->wiphy->frag_threshold = frag->value & ~0x1;
342 }
343
344 err = rdev->ops->set_wiphy_params(wdev->wiphy,
345 WIPHY_PARAM_FRAG_THRESHOLD);
346 if (err)
347 wdev->wiphy->frag_threshold = ofrag;
348
349 return err;
350 }
351 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
352
353 int cfg80211_wext_giwfrag(struct net_device *dev,
354 struct iw_request_info *info,
355 struct iw_param *frag, char *extra)
356 {
357 struct wireless_dev *wdev = dev->ieee80211_ptr;
358
359 frag->value = wdev->wiphy->frag_threshold;
360 frag->disabled = frag->value == (u32) -1;
361 frag->fixed = 1;
362
363 return 0;
364 }
365 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
366
367 static int cfg80211_wext_siwretry(struct net_device *dev,
368 struct iw_request_info *info,
369 struct iw_param *retry, char *extra)
370 {
371 struct wireless_dev *wdev = dev->ieee80211_ptr;
372 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
373 u32 changed = 0;
374 u8 olong = wdev->wiphy->retry_long;
375 u8 oshort = wdev->wiphy->retry_short;
376 int err;
377
378 if (retry->disabled ||
379 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
380 return -EINVAL;
381
382 if (retry->flags & IW_RETRY_LONG) {
383 wdev->wiphy->retry_long = retry->value;
384 changed |= WIPHY_PARAM_RETRY_LONG;
385 } else if (retry->flags & IW_RETRY_SHORT) {
386 wdev->wiphy->retry_short = retry->value;
387 changed |= WIPHY_PARAM_RETRY_SHORT;
388 } else {
389 wdev->wiphy->retry_short = retry->value;
390 wdev->wiphy->retry_long = retry->value;
391 changed |= WIPHY_PARAM_RETRY_LONG;
392 changed |= WIPHY_PARAM_RETRY_SHORT;
393 }
394
395 if (!changed)
396 return 0;
397
398 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
399 if (err) {
400 wdev->wiphy->retry_short = oshort;
401 wdev->wiphy->retry_long = olong;
402 }
403
404 return err;
405 }
406
407 int cfg80211_wext_giwretry(struct net_device *dev,
408 struct iw_request_info *info,
409 struct iw_param *retry, char *extra)
410 {
411 struct wireless_dev *wdev = dev->ieee80211_ptr;
412
413 retry->disabled = 0;
414
415 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
416 /*
417 * First return short value, iwconfig will ask long value
418 * later if needed
419 */
420 retry->flags |= IW_RETRY_LIMIT;
421 retry->value = wdev->wiphy->retry_short;
422 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
423 retry->flags |= IW_RETRY_LONG;
424
425 return 0;
426 }
427
428 if (retry->flags & IW_RETRY_LONG) {
429 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
430 retry->value = wdev->wiphy->retry_long;
431 }
432
433 return 0;
434 }
435 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
436
437 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
438 struct net_device *dev, bool pairwise,
439 const u8 *addr, bool remove, bool tx_key,
440 int idx, struct key_params *params)
441 {
442 struct wireless_dev *wdev = dev->ieee80211_ptr;
443 int err, i;
444 bool rejoin = false;
445
446 if (pairwise && !addr)
447 return -EINVAL;
448
449 if (!wdev->wext.keys) {
450 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
451 GFP_KERNEL);
452 if (!wdev->wext.keys)
453 return -ENOMEM;
454 for (i = 0; i < 6; i++)
455 wdev->wext.keys->params[i].key =
456 wdev->wext.keys->data[i];
457 }
458
459 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
460 wdev->iftype != NL80211_IFTYPE_STATION)
461 return -EOPNOTSUPP;
462
463 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
464 if (!wdev->current_bss)
465 return -ENOLINK;
466
467 if (!rdev->ops->set_default_mgmt_key)
468 return -EOPNOTSUPP;
469
470 if (idx < 4 || idx > 5)
471 return -EINVAL;
472 } else if (idx < 0 || idx > 3)
473 return -EINVAL;
474
475 if (remove) {
476 err = 0;
477 if (wdev->current_bss) {
478 /*
479 * If removing the current TX key, we will need to
480 * join a new IBSS without the privacy bit clear.
481 */
482 if (idx == wdev->wext.default_key &&
483 wdev->iftype == NL80211_IFTYPE_ADHOC) {
484 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
485 rejoin = true;
486 }
487
488 if (!pairwise && addr &&
489 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
490 err = -ENOENT;
491 else
492 err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
493 pairwise, addr);
494 }
495 wdev->wext.connect.privacy = false;
496 /*
497 * Applications using wireless extensions expect to be
498 * able to delete keys that don't exist, so allow that.
499 */
500 if (err == -ENOENT)
501 err = 0;
502 if (!err) {
503 if (!addr) {
504 wdev->wext.keys->params[idx].key_len = 0;
505 wdev->wext.keys->params[idx].cipher = 0;
506 }
507 if (idx == wdev->wext.default_key)
508 wdev->wext.default_key = -1;
509 else if (idx == wdev->wext.default_mgmt_key)
510 wdev->wext.default_mgmt_key = -1;
511 }
512
513 if (!err && rejoin)
514 err = cfg80211_ibss_wext_join(rdev, wdev);
515
516 return err;
517 }
518
519 if (addr)
520 tx_key = false;
521
522 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
523 return -EINVAL;
524
525 err = 0;
526 if (wdev->current_bss)
527 err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
528 pairwise, addr, params);
529 if (err)
530 return err;
531
532 if (!addr) {
533 wdev->wext.keys->params[idx] = *params;
534 memcpy(wdev->wext.keys->data[idx],
535 params->key, params->key_len);
536 wdev->wext.keys->params[idx].key =
537 wdev->wext.keys->data[idx];
538 }
539
540 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
541 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
542 (tx_key || (!addr && wdev->wext.default_key == -1))) {
543 if (wdev->current_bss) {
544 /*
545 * If we are getting a new TX key from not having
546 * had one before we need to join a new IBSS with
547 * the privacy bit set.
548 */
549 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
550 wdev->wext.default_key == -1) {
551 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
552 rejoin = true;
553 }
554 err = rdev->ops->set_default_key(&rdev->wiphy, dev,
555 idx, true, true);
556 }
557 if (!err) {
558 wdev->wext.default_key = idx;
559 if (rejoin)
560 err = cfg80211_ibss_wext_join(rdev, wdev);
561 }
562 return err;
563 }
564
565 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
566 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
567 if (wdev->current_bss)
568 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
569 dev, idx);
570 if (!err)
571 wdev->wext.default_mgmt_key = idx;
572 return err;
573 }
574
575 return 0;
576 }
577
578 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
579 struct net_device *dev, bool pairwise,
580 const u8 *addr, bool remove, bool tx_key,
581 int idx, struct key_params *params)
582 {
583 int err;
584
585 /* devlist mutex needed for possible IBSS re-join */
586 mutex_lock(&rdev->devlist_mtx);
587 wdev_lock(dev->ieee80211_ptr);
588 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
589 remove, tx_key, idx, params);
590 wdev_unlock(dev->ieee80211_ptr);
591 mutex_unlock(&rdev->devlist_mtx);
592
593 return err;
594 }
595
596 static int cfg80211_wext_siwencode(struct net_device *dev,
597 struct iw_request_info *info,
598 struct iw_point *erq, char *keybuf)
599 {
600 struct wireless_dev *wdev = dev->ieee80211_ptr;
601 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
602 int idx, err;
603 bool remove = false;
604 struct key_params params;
605
606 if (wdev->iftype != NL80211_IFTYPE_STATION &&
607 wdev->iftype != NL80211_IFTYPE_ADHOC)
608 return -EOPNOTSUPP;
609
610 /* no use -- only MFP (set_default_mgmt_key) is optional */
611 if (!rdev->ops->del_key ||
612 !rdev->ops->add_key ||
613 !rdev->ops->set_default_key)
614 return -EOPNOTSUPP;
615
616 idx = erq->flags & IW_ENCODE_INDEX;
617 if (idx == 0) {
618 idx = wdev->wext.default_key;
619 if (idx < 0)
620 idx = 0;
621 } else if (idx < 1 || idx > 4)
622 return -EINVAL;
623 else
624 idx--;
625
626 if (erq->flags & IW_ENCODE_DISABLED)
627 remove = true;
628 else if (erq->length == 0) {
629 /* No key data - just set the default TX key index */
630 err = 0;
631 wdev_lock(wdev);
632 if (wdev->current_bss)
633 err = rdev->ops->set_default_key(&rdev->wiphy, dev,
634 idx, true, true);
635 if (!err)
636 wdev->wext.default_key = idx;
637 wdev_unlock(wdev);
638 return err;
639 }
640
641 memset(&params, 0, sizeof(params));
642 params.key = keybuf;
643 params.key_len = erq->length;
644 if (erq->length == 5)
645 params.cipher = WLAN_CIPHER_SUITE_WEP40;
646 else if (erq->length == 13)
647 params.cipher = WLAN_CIPHER_SUITE_WEP104;
648 else if (!remove)
649 return -EINVAL;
650
651 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
652 wdev->wext.default_key == -1,
653 idx, &params);
654 }
655
656 static int cfg80211_wext_siwencodeext(struct net_device *dev,
657 struct iw_request_info *info,
658 struct iw_point *erq, char *extra)
659 {
660 struct wireless_dev *wdev = dev->ieee80211_ptr;
661 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
662 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
663 const u8 *addr;
664 int idx;
665 bool remove = false;
666 struct key_params params;
667 u32 cipher;
668
669 if (wdev->iftype != NL80211_IFTYPE_STATION &&
670 wdev->iftype != NL80211_IFTYPE_ADHOC)
671 return -EOPNOTSUPP;
672
673 /* no use -- only MFP (set_default_mgmt_key) is optional */
674 if (!rdev->ops->del_key ||
675 !rdev->ops->add_key ||
676 !rdev->ops->set_default_key)
677 return -EOPNOTSUPP;
678
679 switch (ext->alg) {
680 case IW_ENCODE_ALG_NONE:
681 remove = true;
682 cipher = 0;
683 break;
684 case IW_ENCODE_ALG_WEP:
685 if (ext->key_len == 5)
686 cipher = WLAN_CIPHER_SUITE_WEP40;
687 else if (ext->key_len == 13)
688 cipher = WLAN_CIPHER_SUITE_WEP104;
689 else
690 return -EINVAL;
691 break;
692 case IW_ENCODE_ALG_TKIP:
693 cipher = WLAN_CIPHER_SUITE_TKIP;
694 break;
695 case IW_ENCODE_ALG_CCMP:
696 cipher = WLAN_CIPHER_SUITE_CCMP;
697 break;
698 case IW_ENCODE_ALG_AES_CMAC:
699 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
700 break;
701 default:
702 return -EOPNOTSUPP;
703 }
704
705 if (erq->flags & IW_ENCODE_DISABLED)
706 remove = true;
707
708 idx = erq->flags & IW_ENCODE_INDEX;
709 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
710 if (idx < 4 || idx > 5) {
711 idx = wdev->wext.default_mgmt_key;
712 if (idx < 0)
713 return -EINVAL;
714 } else
715 idx--;
716 } else {
717 if (idx < 1 || idx > 4) {
718 idx = wdev->wext.default_key;
719 if (idx < 0)
720 return -EINVAL;
721 } else
722 idx--;
723 }
724
725 addr = ext->addr.sa_data;
726 if (is_broadcast_ether_addr(addr))
727 addr = NULL;
728
729 memset(&params, 0, sizeof(params));
730 params.key = ext->key;
731 params.key_len = ext->key_len;
732 params.cipher = cipher;
733
734 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
735 params.seq = ext->rx_seq;
736 params.seq_len = 6;
737 }
738
739 return cfg80211_set_encryption(
740 rdev, dev,
741 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
742 addr, remove,
743 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
744 idx, &params);
745 }
746
747 static int cfg80211_wext_giwencode(struct net_device *dev,
748 struct iw_request_info *info,
749 struct iw_point *erq, char *keybuf)
750 {
751 struct wireless_dev *wdev = dev->ieee80211_ptr;
752 int idx;
753
754 if (wdev->iftype != NL80211_IFTYPE_STATION &&
755 wdev->iftype != NL80211_IFTYPE_ADHOC)
756 return -EOPNOTSUPP;
757
758 idx = erq->flags & IW_ENCODE_INDEX;
759 if (idx == 0) {
760 idx = wdev->wext.default_key;
761 if (idx < 0)
762 idx = 0;
763 } else if (idx < 1 || idx > 4)
764 return -EINVAL;
765 else
766 idx--;
767
768 erq->flags = idx + 1;
769
770 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
771 erq->flags |= IW_ENCODE_DISABLED;
772 erq->length = 0;
773 return 0;
774 }
775
776 erq->length = min_t(size_t, erq->length,
777 wdev->wext.keys->params[idx].key_len);
778 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
779 erq->flags |= IW_ENCODE_ENABLED;
780
781 return 0;
782 }
783
784 static int cfg80211_wext_siwfreq(struct net_device *dev,
785 struct iw_request_info *info,
786 struct iw_freq *wextfreq, char *extra)
787 {
788 struct wireless_dev *wdev = dev->ieee80211_ptr;
789 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
790 int freq, err;
791
792 switch (wdev->iftype) {
793 case NL80211_IFTYPE_STATION:
794 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
795 case NL80211_IFTYPE_ADHOC:
796 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
797 case NL80211_IFTYPE_MONITOR:
798 case NL80211_IFTYPE_WDS:
799 case NL80211_IFTYPE_MESH_POINT:
800 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
801 if (freq < 0)
802 return freq;
803 if (freq == 0)
804 return -EINVAL;
805 mutex_lock(&rdev->devlist_mtx);
806 wdev_lock(wdev);
807 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
808 wdev_unlock(wdev);
809 mutex_unlock(&rdev->devlist_mtx);
810 return err;
811 default:
812 return -EOPNOTSUPP;
813 }
814 }
815
816 static int cfg80211_wext_giwfreq(struct net_device *dev,
817 struct iw_request_info *info,
818 struct iw_freq *freq, char *extra)
819 {
820 struct wireless_dev *wdev = dev->ieee80211_ptr;
821
822 switch (wdev->iftype) {
823 case NL80211_IFTYPE_STATION:
824 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
825 case NL80211_IFTYPE_ADHOC:
826 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
827 default:
828 if (!wdev->channel)
829 return -EINVAL;
830 freq->m = wdev->channel->center_freq;
831 freq->e = 6;
832 return 0;
833 }
834 }
835
836 static int cfg80211_wext_siwtxpower(struct net_device *dev,
837 struct iw_request_info *info,
838 union iwreq_data *data, char *extra)
839 {
840 struct wireless_dev *wdev = dev->ieee80211_ptr;
841 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
842 enum nl80211_tx_power_setting type;
843 int dbm = 0;
844
845 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
846 return -EINVAL;
847 if (data->txpower.flags & IW_TXPOW_RANGE)
848 return -EINVAL;
849
850 if (!rdev->ops->set_tx_power)
851 return -EOPNOTSUPP;
852
853 /* only change when not disabling */
854 if (!data->txpower.disabled) {
855 rfkill_set_sw_state(rdev->rfkill, false);
856
857 if (data->txpower.fixed) {
858 /*
859 * wext doesn't support negative values, see
860 * below where it's for automatic
861 */
862 if (data->txpower.value < 0)
863 return -EINVAL;
864 dbm = data->txpower.value;
865 type = NL80211_TX_POWER_FIXED;
866 /* TODO: do regulatory check! */
867 } else {
868 /*
869 * Automatic power level setting, max being the value
870 * passed in from userland.
871 */
872 if (data->txpower.value < 0) {
873 type = NL80211_TX_POWER_AUTOMATIC;
874 } else {
875 dbm = data->txpower.value;
876 type = NL80211_TX_POWER_LIMITED;
877 }
878 }
879 } else {
880 rfkill_set_sw_state(rdev->rfkill, true);
881 schedule_work(&rdev->rfkill_sync);
882 return 0;
883 }
884
885 return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
886 }
887
888 static int cfg80211_wext_giwtxpower(struct net_device *dev,
889 struct iw_request_info *info,
890 union iwreq_data *data, char *extra)
891 {
892 struct wireless_dev *wdev = dev->ieee80211_ptr;
893 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
894 int err, val;
895
896 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
897 return -EINVAL;
898 if (data->txpower.flags & IW_TXPOW_RANGE)
899 return -EINVAL;
900
901 if (!rdev->ops->get_tx_power)
902 return -EOPNOTSUPP;
903
904 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
905 if (err)
906 return err;
907
908 /* well... oh well */
909 data->txpower.fixed = 1;
910 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
911 data->txpower.value = val;
912 data->txpower.flags = IW_TXPOW_DBM;
913
914 return 0;
915 }
916
917 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
918 s32 auth_alg)
919 {
920 int nr_alg = 0;
921
922 if (!auth_alg)
923 return -EINVAL;
924
925 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
926 IW_AUTH_ALG_SHARED_KEY |
927 IW_AUTH_ALG_LEAP))
928 return -EINVAL;
929
930 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
931 nr_alg++;
932 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
933 }
934
935 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
936 nr_alg++;
937 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
938 }
939
940 if (auth_alg & IW_AUTH_ALG_LEAP) {
941 nr_alg++;
942 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
943 }
944
945 if (nr_alg > 1)
946 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
947
948 return 0;
949 }
950
951 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
952 {
953 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
954 IW_AUTH_WPA_VERSION_WPA2|
955 IW_AUTH_WPA_VERSION_DISABLED))
956 return -EINVAL;
957
958 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
959 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
960 IW_AUTH_WPA_VERSION_WPA2)))
961 return -EINVAL;
962
963 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
964 wdev->wext.connect.crypto.wpa_versions &=
965 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
966
967 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
968 wdev->wext.connect.crypto.wpa_versions |=
969 NL80211_WPA_VERSION_1;
970
971 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
972 wdev->wext.connect.crypto.wpa_versions |=
973 NL80211_WPA_VERSION_2;
974
975 return 0;
976 }
977
978 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
979 {
980 if (cipher & IW_AUTH_CIPHER_WEP40)
981 wdev->wext.connect.crypto.cipher_group =
982 WLAN_CIPHER_SUITE_WEP40;
983 else if (cipher & IW_AUTH_CIPHER_WEP104)
984 wdev->wext.connect.crypto.cipher_group =
985 WLAN_CIPHER_SUITE_WEP104;
986 else if (cipher & IW_AUTH_CIPHER_TKIP)
987 wdev->wext.connect.crypto.cipher_group =
988 WLAN_CIPHER_SUITE_TKIP;
989 else if (cipher & IW_AUTH_CIPHER_CCMP)
990 wdev->wext.connect.crypto.cipher_group =
991 WLAN_CIPHER_SUITE_CCMP;
992 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
993 wdev->wext.connect.crypto.cipher_group =
994 WLAN_CIPHER_SUITE_AES_CMAC;
995 else if (cipher & IW_AUTH_CIPHER_NONE)
996 wdev->wext.connect.crypto.cipher_group = 0;
997 else
998 return -EINVAL;
999
1000 return 0;
1001 }
1002
1003 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1004 {
1005 int nr_ciphers = 0;
1006 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1007
1008 if (cipher & IW_AUTH_CIPHER_WEP40) {
1009 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1010 nr_ciphers++;
1011 }
1012
1013 if (cipher & IW_AUTH_CIPHER_WEP104) {
1014 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1015 nr_ciphers++;
1016 }
1017
1018 if (cipher & IW_AUTH_CIPHER_TKIP) {
1019 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1020 nr_ciphers++;
1021 }
1022
1023 if (cipher & IW_AUTH_CIPHER_CCMP) {
1024 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1025 nr_ciphers++;
1026 }
1027
1028 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1029 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1030 nr_ciphers++;
1031 }
1032
1033 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1034
1035 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1036
1037 return 0;
1038 }
1039
1040
1041 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1042 {
1043 int nr_akm_suites = 0;
1044
1045 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1046 IW_AUTH_KEY_MGMT_PSK))
1047 return -EINVAL;
1048
1049 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1050 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1051 WLAN_AKM_SUITE_8021X;
1052 nr_akm_suites++;
1053 }
1054
1055 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1056 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1057 WLAN_AKM_SUITE_PSK;
1058 nr_akm_suites++;
1059 }
1060
1061 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1062
1063 return 0;
1064 }
1065
1066 static int cfg80211_wext_siwauth(struct net_device *dev,
1067 struct iw_request_info *info,
1068 struct iw_param *data, char *extra)
1069 {
1070 struct wireless_dev *wdev = dev->ieee80211_ptr;
1071
1072 if (wdev->iftype != NL80211_IFTYPE_STATION)
1073 return -EOPNOTSUPP;
1074
1075 switch (data->flags & IW_AUTH_INDEX) {
1076 case IW_AUTH_PRIVACY_INVOKED:
1077 wdev->wext.connect.privacy = data->value;
1078 return 0;
1079 case IW_AUTH_WPA_VERSION:
1080 return cfg80211_set_wpa_version(wdev, data->value);
1081 case IW_AUTH_CIPHER_GROUP:
1082 return cfg80211_set_cipher_group(wdev, data->value);
1083 case IW_AUTH_KEY_MGMT:
1084 return cfg80211_set_key_mgt(wdev, data->value);
1085 case IW_AUTH_CIPHER_PAIRWISE:
1086 return cfg80211_set_cipher_pairwise(wdev, data->value);
1087 case IW_AUTH_80211_AUTH_ALG:
1088 return cfg80211_set_auth_alg(wdev, data->value);
1089 case IW_AUTH_WPA_ENABLED:
1090 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1091 case IW_AUTH_DROP_UNENCRYPTED:
1092 case IW_AUTH_MFP:
1093 return 0;
1094 default:
1095 return -EOPNOTSUPP;
1096 }
1097 }
1098
1099 static int cfg80211_wext_giwauth(struct net_device *dev,
1100 struct iw_request_info *info,
1101 struct iw_param *data, char *extra)
1102 {
1103 /* XXX: what do we need? */
1104
1105 return -EOPNOTSUPP;
1106 }
1107
1108 static int cfg80211_wext_siwpower(struct net_device *dev,
1109 struct iw_request_info *info,
1110 struct iw_param *wrq, char *extra)
1111 {
1112 struct wireless_dev *wdev = dev->ieee80211_ptr;
1113 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1114 bool ps = wdev->ps;
1115 int timeout = wdev->ps_timeout;
1116 int err;
1117
1118 if (wdev->iftype != NL80211_IFTYPE_STATION)
1119 return -EINVAL;
1120
1121 if (!rdev->ops->set_power_mgmt)
1122 return -EOPNOTSUPP;
1123
1124 if (wrq->disabled) {
1125 ps = false;
1126 } else {
1127 switch (wrq->flags & IW_POWER_MODE) {
1128 case IW_POWER_ON: /* If not specified */
1129 case IW_POWER_MODE: /* If set all mask */
1130 case IW_POWER_ALL_R: /* If explicitely state all */
1131 ps = true;
1132 break;
1133 default: /* Otherwise we ignore */
1134 return -EINVAL;
1135 }
1136
1137 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1138 return -EINVAL;
1139
1140 if (wrq->flags & IW_POWER_TIMEOUT)
1141 timeout = wrq->value / 1000;
1142 }
1143
1144 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1145 if (err)
1146 return err;
1147
1148 wdev->ps = ps;
1149 wdev->ps_timeout = timeout;
1150
1151 return 0;
1152
1153 }
1154
1155 static int cfg80211_wext_giwpower(struct net_device *dev,
1156 struct iw_request_info *info,
1157 struct iw_param *wrq, char *extra)
1158 {
1159 struct wireless_dev *wdev = dev->ieee80211_ptr;
1160
1161 wrq->disabled = !wdev->ps;
1162
1163 return 0;
1164 }
1165
1166 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1167 struct iw_request_info *info,
1168 struct sockaddr *addr, char *extra)
1169 {
1170 struct wireless_dev *wdev = dev->ieee80211_ptr;
1171 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1172 int err;
1173
1174 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1175 return -EINVAL;
1176
1177 if (addr->sa_family != ARPHRD_ETHER)
1178 return -EINVAL;
1179
1180 if (netif_running(dev))
1181 return -EBUSY;
1182
1183 if (!rdev->ops->set_wds_peer)
1184 return -EOPNOTSUPP;
1185
1186 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1187 if (err)
1188 return err;
1189
1190 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1191
1192 return 0;
1193 }
1194
1195 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1196 struct iw_request_info *info,
1197 struct sockaddr *addr, char *extra)
1198 {
1199 struct wireless_dev *wdev = dev->ieee80211_ptr;
1200
1201 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1202 return -EINVAL;
1203
1204 addr->sa_family = ARPHRD_ETHER;
1205 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1206
1207 return 0;
1208 }
1209
1210 static int cfg80211_wext_siwrate(struct net_device *dev,
1211 struct iw_request_info *info,
1212 struct iw_param *rate, char *extra)
1213 {
1214 struct wireless_dev *wdev = dev->ieee80211_ptr;
1215 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1216 struct cfg80211_bitrate_mask mask;
1217 u32 fixed, maxrate;
1218 struct ieee80211_supported_band *sband;
1219 int band, ridx;
1220 bool match = false;
1221
1222 if (!rdev->ops->set_bitrate_mask)
1223 return -EOPNOTSUPP;
1224
1225 memset(&mask, 0, sizeof(mask));
1226 fixed = 0;
1227 maxrate = (u32)-1;
1228
1229 if (rate->value < 0) {
1230 /* nothing */
1231 } else if (rate->fixed) {
1232 fixed = rate->value / 100000;
1233 } else {
1234 maxrate = rate->value / 100000;
1235 }
1236
1237 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1238 sband = wdev->wiphy->bands[band];
1239 if (sband == NULL)
1240 continue;
1241 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1242 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1243 if (fixed == srate->bitrate) {
1244 mask.control[band].legacy = 1 << ridx;
1245 match = true;
1246 break;
1247 }
1248 if (srate->bitrate <= maxrate) {
1249 mask.control[band].legacy |= 1 << ridx;
1250 match = true;
1251 }
1252 }
1253 }
1254
1255 if (!match)
1256 return -EINVAL;
1257
1258 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1259 }
1260
1261 static int cfg80211_wext_giwrate(struct net_device *dev,
1262 struct iw_request_info *info,
1263 struct iw_param *rate, char *extra)
1264 {
1265 struct wireless_dev *wdev = dev->ieee80211_ptr;
1266 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1267 /* we are under RTNL - globally locked - so can use a static struct */
1268 static struct station_info sinfo;
1269 u8 addr[ETH_ALEN];
1270 int err;
1271
1272 if (wdev->iftype != NL80211_IFTYPE_STATION)
1273 return -EOPNOTSUPP;
1274
1275 if (!rdev->ops->get_station)
1276 return -EOPNOTSUPP;
1277
1278 err = 0;
1279 wdev_lock(wdev);
1280 if (wdev->current_bss)
1281 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1282 else
1283 err = -EOPNOTSUPP;
1284 wdev_unlock(wdev);
1285 if (err)
1286 return err;
1287
1288 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1289 if (err)
1290 return err;
1291
1292 if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1293 return -EOPNOTSUPP;
1294
1295 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1296
1297 return 0;
1298 }
1299
1300 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1301 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1302 {
1303 struct wireless_dev *wdev = dev->ieee80211_ptr;
1304 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1305 /* we are under RTNL - globally locked - so can use static structs */
1306 static struct iw_statistics wstats;
1307 static struct station_info sinfo;
1308 u8 bssid[ETH_ALEN];
1309
1310 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1311 return NULL;
1312
1313 if (!rdev->ops->get_station)
1314 return NULL;
1315
1316 /* Grab BSSID of current BSS, if any */
1317 wdev_lock(wdev);
1318 if (!wdev->current_bss) {
1319 wdev_unlock(wdev);
1320 return NULL;
1321 }
1322 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1323 wdev_unlock(wdev);
1324
1325 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1326 return NULL;
1327
1328 memset(&wstats, 0, sizeof(wstats));
1329
1330 switch (rdev->wiphy.signal_type) {
1331 case CFG80211_SIGNAL_TYPE_MBM:
1332 if (sinfo.filled & STATION_INFO_SIGNAL) {
1333 int sig = sinfo.signal;
1334 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1335 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1336 wstats.qual.updated |= IW_QUAL_DBM;
1337 wstats.qual.level = sig;
1338 if (sig < -110)
1339 sig = -110;
1340 else if (sig > -40)
1341 sig = -40;
1342 wstats.qual.qual = sig + 110;
1343 break;
1344 }
1345 case CFG80211_SIGNAL_TYPE_UNSPEC:
1346 if (sinfo.filled & STATION_INFO_SIGNAL) {
1347 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1348 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1349 wstats.qual.level = sinfo.signal;
1350 wstats.qual.qual = sinfo.signal;
1351 break;
1352 }
1353 default:
1354 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1355 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1356 }
1357
1358 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1359 if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1360 wstats.discard.misc = sinfo.rx_dropped_misc;
1361 if (sinfo.filled & STATION_INFO_TX_FAILED)
1362 wstats.discard.retries = sinfo.tx_failed;
1363
1364 return &wstats;
1365 }
1366
1367 static int cfg80211_wext_siwap(struct net_device *dev,
1368 struct iw_request_info *info,
1369 struct sockaddr *ap_addr, char *extra)
1370 {
1371 struct wireless_dev *wdev = dev->ieee80211_ptr;
1372
1373 switch (wdev->iftype) {
1374 case NL80211_IFTYPE_ADHOC:
1375 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1376 case NL80211_IFTYPE_STATION:
1377 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1378 case NL80211_IFTYPE_WDS:
1379 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1380 default:
1381 return -EOPNOTSUPP;
1382 }
1383 }
1384
1385 static int cfg80211_wext_giwap(struct net_device *dev,
1386 struct iw_request_info *info,
1387 struct sockaddr *ap_addr, char *extra)
1388 {
1389 struct wireless_dev *wdev = dev->ieee80211_ptr;
1390
1391 switch (wdev->iftype) {
1392 case NL80211_IFTYPE_ADHOC:
1393 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1394 case NL80211_IFTYPE_STATION:
1395 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1396 case NL80211_IFTYPE_WDS:
1397 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1398 default:
1399 return -EOPNOTSUPP;
1400 }
1401 }
1402
1403 static int cfg80211_wext_siwessid(struct net_device *dev,
1404 struct iw_request_info *info,
1405 struct iw_point *data, char *ssid)
1406 {
1407 struct wireless_dev *wdev = dev->ieee80211_ptr;
1408
1409 switch (wdev->iftype) {
1410 case NL80211_IFTYPE_ADHOC:
1411 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1412 case NL80211_IFTYPE_STATION:
1413 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1414 default:
1415 return -EOPNOTSUPP;
1416 }
1417 }
1418
1419 static int cfg80211_wext_giwessid(struct net_device *dev,
1420 struct iw_request_info *info,
1421 struct iw_point *data, char *ssid)
1422 {
1423 struct wireless_dev *wdev = dev->ieee80211_ptr;
1424
1425 data->flags = 0;
1426 data->length = 0;
1427
1428 switch (wdev->iftype) {
1429 case NL80211_IFTYPE_ADHOC:
1430 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1431 case NL80211_IFTYPE_STATION:
1432 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1433 default:
1434 return -EOPNOTSUPP;
1435 }
1436 }
1437
1438 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1439 struct iw_request_info *info,
1440 struct iw_point *data, char *extra)
1441 {
1442 struct wireless_dev *wdev = dev->ieee80211_ptr;
1443 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1444 struct cfg80211_pmksa cfg_pmksa;
1445 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1446
1447 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1448
1449 if (wdev->iftype != NL80211_IFTYPE_STATION)
1450 return -EINVAL;
1451
1452 cfg_pmksa.bssid = pmksa->bssid.sa_data;
1453 cfg_pmksa.pmkid = pmksa->pmkid;
1454
1455 switch (pmksa->cmd) {
1456 case IW_PMKSA_ADD:
1457 if (!rdev->ops->set_pmksa)
1458 return -EOPNOTSUPP;
1459
1460 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1461
1462 case IW_PMKSA_REMOVE:
1463 if (!rdev->ops->del_pmksa)
1464 return -EOPNOTSUPP;
1465
1466 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1467
1468 case IW_PMKSA_FLUSH:
1469 if (!rdev->ops->flush_pmksa)
1470 return -EOPNOTSUPP;
1471
1472 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1473
1474 default:
1475 return -EOPNOTSUPP;
1476 }
1477 }
1478
1479 static const iw_handler cfg80211_handlers[] = {
1480 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
1481 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
1482 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
1483 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
1484 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
1485 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
1486 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
1487 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
1488 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
1489 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
1490 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
1491 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
1492 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
1493 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
1494 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
1495 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
1496 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
1497 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
1498 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
1499 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
1500 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
1501 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
1502 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
1503 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
1504 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
1505 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
1506 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
1507 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
1508 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
1509 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
1510 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1511 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
1512 };
1513
1514 const struct iw_handler_def cfg80211_wext_handler = {
1515 .num_standard = ARRAY_SIZE(cfg80211_handlers),
1516 .standard = cfg80211_handlers,
1517 .get_wireless_stats = cfg80211_wireless_stats,
1518 };
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