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Merge tag 'libnvdimm-for-4.2' of git://git.kernel.org/pub/scm/linux/kernel/git/djbw...
[GitHub/exynos8895/android_kernel_samsung_universal8895.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 #include "rdev-ops.h"
23
24 int cfg80211_wext_giwname(struct net_device *dev,
25 struct iw_request_info *info,
26 char *name, char *extra)
27 {
28 struct wireless_dev *wdev = dev->ieee80211_ptr;
29 struct ieee80211_supported_band *sband;
30 bool is_ht = false, is_a = false, is_b = false, is_g = false;
31
32 if (!wdev)
33 return -EOPNOTSUPP;
34
35 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
36 if (sband) {
37 is_a = true;
38 is_ht |= sband->ht_cap.ht_supported;
39 }
40
41 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
42 if (sband) {
43 int i;
44 /* Check for mandatory rates */
45 for (i = 0; i < sband->n_bitrates; i++) {
46 if (sband->bitrates[i].bitrate == 10)
47 is_b = true;
48 if (sband->bitrates[i].bitrate == 60)
49 is_g = true;
50 }
51 is_ht |= sband->ht_cap.ht_supported;
52 }
53
54 strcpy(name, "IEEE 802.11");
55 if (is_a)
56 strcat(name, "a");
57 if (is_b)
58 strcat(name, "b");
59 if (is_g)
60 strcat(name, "g");
61 if (is_ht)
62 strcat(name, "n");
63
64 return 0;
65 }
66 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);
67
68 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
69 u32 *mode, char *extra)
70 {
71 struct wireless_dev *wdev = dev->ieee80211_ptr;
72 struct cfg80211_registered_device *rdev;
73 struct vif_params vifparams;
74 enum nl80211_iftype type;
75
76 rdev = wiphy_to_rdev(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 return cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
101 }
102 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode);
103
104 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
105 u32 *mode, char *extra)
106 {
107 struct wireless_dev *wdev = dev->ieee80211_ptr;
108
109 if (!wdev)
110 return -EOPNOTSUPP;
111
112 switch (wdev->iftype) {
113 case NL80211_IFTYPE_AP:
114 *mode = IW_MODE_MASTER;
115 break;
116 case NL80211_IFTYPE_STATION:
117 *mode = IW_MODE_INFRA;
118 break;
119 case NL80211_IFTYPE_ADHOC:
120 *mode = IW_MODE_ADHOC;
121 break;
122 case NL80211_IFTYPE_MONITOR:
123 *mode = IW_MODE_MONITOR;
124 break;
125 case NL80211_IFTYPE_WDS:
126 *mode = IW_MODE_REPEAT;
127 break;
128 case NL80211_IFTYPE_AP_VLAN:
129 *mode = IW_MODE_SECOND; /* FIXME */
130 break;
131 default:
132 *mode = IW_MODE_AUTO;
133 break;
134 }
135 return 0;
136 }
137 EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode);
138
139
140 int cfg80211_wext_giwrange(struct net_device *dev,
141 struct iw_request_info *info,
142 struct iw_point *data, char *extra)
143 {
144 struct wireless_dev *wdev = dev->ieee80211_ptr;
145 struct iw_range *range = (struct iw_range *) extra;
146 enum ieee80211_band band;
147 int i, c = 0;
148
149 if (!wdev)
150 return -EOPNOTSUPP;
151
152 data->length = sizeof(struct iw_range);
153 memset(range, 0, sizeof(struct iw_range));
154
155 range->we_version_compiled = WIRELESS_EXT;
156 range->we_version_source = 21;
157 range->retry_capa = IW_RETRY_LIMIT;
158 range->retry_flags = IW_RETRY_LIMIT;
159 range->min_retry = 0;
160 range->max_retry = 255;
161 range->min_rts = 0;
162 range->max_rts = 2347;
163 range->min_frag = 256;
164 range->max_frag = 2346;
165
166 range->max_encoding_tokens = 4;
167
168 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
169
170 switch (wdev->wiphy->signal_type) {
171 case CFG80211_SIGNAL_TYPE_NONE:
172 break;
173 case CFG80211_SIGNAL_TYPE_MBM:
174 range->max_qual.level = (u8)-110;
175 range->max_qual.qual = 70;
176 range->avg_qual.qual = 35;
177 range->max_qual.updated |= IW_QUAL_DBM;
178 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
179 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
180 break;
181 case CFG80211_SIGNAL_TYPE_UNSPEC:
182 range->max_qual.level = 100;
183 range->max_qual.qual = 100;
184 range->avg_qual.qual = 50;
185 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
186 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
187 break;
188 }
189
190 range->avg_qual.level = range->max_qual.level / 2;
191 range->avg_qual.noise = range->max_qual.noise / 2;
192 range->avg_qual.updated = range->max_qual.updated;
193
194 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
195 switch (wdev->wiphy->cipher_suites[i]) {
196 case WLAN_CIPHER_SUITE_TKIP:
197 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
198 IW_ENC_CAPA_WPA);
199 break;
200
201 case WLAN_CIPHER_SUITE_CCMP:
202 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
203 IW_ENC_CAPA_WPA2);
204 break;
205
206 case WLAN_CIPHER_SUITE_WEP40:
207 range->encoding_size[range->num_encoding_sizes++] =
208 WLAN_KEY_LEN_WEP40;
209 break;
210
211 case WLAN_CIPHER_SUITE_WEP104:
212 range->encoding_size[range->num_encoding_sizes++] =
213 WLAN_KEY_LEN_WEP104;
214 break;
215 }
216 }
217
218 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
219 struct ieee80211_supported_band *sband;
220
221 sband = wdev->wiphy->bands[band];
222
223 if (!sband)
224 continue;
225
226 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
227 struct ieee80211_channel *chan = &sband->channels[i];
228
229 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
230 range->freq[c].i =
231 ieee80211_frequency_to_channel(
232 chan->center_freq);
233 range->freq[c].m = chan->center_freq;
234 range->freq[c].e = 6;
235 c++;
236 }
237 }
238 }
239 range->num_channels = c;
240 range->num_frequency = c;
241
242 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
243 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
244 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
245
246 if (wdev->wiphy->max_scan_ssids > 0)
247 range->scan_capa |= IW_SCAN_CAPA_ESSID;
248
249 return 0;
250 }
251 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange);
252
253
254 /**
255 * cfg80211_wext_freq - get wext frequency for non-"auto"
256 * @dev: the net device
257 * @freq: the wext freq encoding
258 *
259 * Returns a frequency, or a negative error code, or 0 for auto.
260 */
261 int cfg80211_wext_freq(struct iw_freq *freq)
262 {
263 /*
264 * Parse frequency - return 0 for auto and
265 * -EINVAL for impossible things.
266 */
267 if (freq->e == 0) {
268 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
269 if (freq->m < 0)
270 return 0;
271 if (freq->m > 14)
272 band = IEEE80211_BAND_5GHZ;
273 return ieee80211_channel_to_frequency(freq->m, band);
274 } else {
275 int i, div = 1000000;
276 for (i = 0; i < freq->e; i++)
277 div /= 10;
278 if (div <= 0)
279 return -EINVAL;
280 return freq->m / div;
281 }
282 }
283
284 int cfg80211_wext_siwrts(struct net_device *dev,
285 struct iw_request_info *info,
286 struct iw_param *rts, char *extra)
287 {
288 struct wireless_dev *wdev = dev->ieee80211_ptr;
289 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
290 u32 orts = wdev->wiphy->rts_threshold;
291 int err;
292
293 if (rts->disabled || !rts->fixed)
294 wdev->wiphy->rts_threshold = (u32) -1;
295 else if (rts->value < 0)
296 return -EINVAL;
297 else
298 wdev->wiphy->rts_threshold = rts->value;
299
300 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
301 if (err)
302 wdev->wiphy->rts_threshold = orts;
303
304 return err;
305 }
306 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts);
307
308 int cfg80211_wext_giwrts(struct net_device *dev,
309 struct iw_request_info *info,
310 struct iw_param *rts, char *extra)
311 {
312 struct wireless_dev *wdev = dev->ieee80211_ptr;
313
314 rts->value = wdev->wiphy->rts_threshold;
315 rts->disabled = rts->value == (u32) -1;
316 rts->fixed = 1;
317
318 return 0;
319 }
320 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts);
321
322 int cfg80211_wext_siwfrag(struct net_device *dev,
323 struct iw_request_info *info,
324 struct iw_param *frag, char *extra)
325 {
326 struct wireless_dev *wdev = dev->ieee80211_ptr;
327 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
328 u32 ofrag = wdev->wiphy->frag_threshold;
329 int err;
330
331 if (frag->disabled || !frag->fixed)
332 wdev->wiphy->frag_threshold = (u32) -1;
333 else if (frag->value < 256)
334 return -EINVAL;
335 else {
336 /* Fragment length must be even, so strip LSB. */
337 wdev->wiphy->frag_threshold = frag->value & ~0x1;
338 }
339
340 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
341 if (err)
342 wdev->wiphy->frag_threshold = ofrag;
343
344 return err;
345 }
346 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag);
347
348 int cfg80211_wext_giwfrag(struct net_device *dev,
349 struct iw_request_info *info,
350 struct iw_param *frag, char *extra)
351 {
352 struct wireless_dev *wdev = dev->ieee80211_ptr;
353
354 frag->value = wdev->wiphy->frag_threshold;
355 frag->disabled = frag->value == (u32) -1;
356 frag->fixed = 1;
357
358 return 0;
359 }
360 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag);
361
362 static int cfg80211_wext_siwretry(struct net_device *dev,
363 struct iw_request_info *info,
364 struct iw_param *retry, char *extra)
365 {
366 struct wireless_dev *wdev = dev->ieee80211_ptr;
367 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
368 u32 changed = 0;
369 u8 olong = wdev->wiphy->retry_long;
370 u8 oshort = wdev->wiphy->retry_short;
371 int err;
372
373 if (retry->disabled || retry->value < 1 || retry->value > 255 ||
374 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
375 return -EINVAL;
376
377 if (retry->flags & IW_RETRY_LONG) {
378 wdev->wiphy->retry_long = retry->value;
379 changed |= WIPHY_PARAM_RETRY_LONG;
380 } else if (retry->flags & IW_RETRY_SHORT) {
381 wdev->wiphy->retry_short = retry->value;
382 changed |= WIPHY_PARAM_RETRY_SHORT;
383 } else {
384 wdev->wiphy->retry_short = retry->value;
385 wdev->wiphy->retry_long = retry->value;
386 changed |= WIPHY_PARAM_RETRY_LONG;
387 changed |= WIPHY_PARAM_RETRY_SHORT;
388 }
389
390 if (!changed)
391 return 0;
392
393 err = rdev_set_wiphy_params(rdev, changed);
394 if (err) {
395 wdev->wiphy->retry_short = oshort;
396 wdev->wiphy->retry_long = olong;
397 }
398
399 return err;
400 }
401
402 int cfg80211_wext_giwretry(struct net_device *dev,
403 struct iw_request_info *info,
404 struct iw_param *retry, char *extra)
405 {
406 struct wireless_dev *wdev = dev->ieee80211_ptr;
407
408 retry->disabled = 0;
409
410 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
411 /*
412 * First return short value, iwconfig will ask long value
413 * later if needed
414 */
415 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT;
416 retry->value = wdev->wiphy->retry_short;
417 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short)
418 retry->flags |= IW_RETRY_LONG;
419
420 return 0;
421 }
422
423 if (retry->flags & IW_RETRY_LONG) {
424 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
425 retry->value = wdev->wiphy->retry_long;
426 }
427
428 return 0;
429 }
430 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry);
431
432 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
433 struct net_device *dev, bool pairwise,
434 const u8 *addr, bool remove, bool tx_key,
435 int idx, struct key_params *params)
436 {
437 struct wireless_dev *wdev = dev->ieee80211_ptr;
438 int err, i;
439 bool rejoin = false;
440
441 if (pairwise && !addr)
442 return -EINVAL;
443
444 if (!wdev->wext.keys) {
445 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
446 GFP_KERNEL);
447 if (!wdev->wext.keys)
448 return -ENOMEM;
449 for (i = 0; i < 6; i++)
450 wdev->wext.keys->params[i].key =
451 wdev->wext.keys->data[i];
452 }
453
454 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
455 wdev->iftype != NL80211_IFTYPE_STATION)
456 return -EOPNOTSUPP;
457
458 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
459 if (!wdev->current_bss)
460 return -ENOLINK;
461
462 if (!rdev->ops->set_default_mgmt_key)
463 return -EOPNOTSUPP;
464
465 if (idx < 4 || idx > 5)
466 return -EINVAL;
467 } else if (idx < 0 || idx > 3)
468 return -EINVAL;
469
470 if (remove) {
471 err = 0;
472 if (wdev->current_bss) {
473 /*
474 * If removing the current TX key, we will need to
475 * join a new IBSS without the privacy bit clear.
476 */
477 if (idx == wdev->wext.default_key &&
478 wdev->iftype == NL80211_IFTYPE_ADHOC) {
479 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
480 rejoin = true;
481 }
482
483 if (!pairwise && addr &&
484 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
485 err = -ENOENT;
486 else
487 err = rdev_del_key(rdev, dev, idx, pairwise,
488 addr);
489 }
490 wdev->wext.connect.privacy = false;
491 /*
492 * Applications using wireless extensions expect to be
493 * able to delete keys that don't exist, so allow that.
494 */
495 if (err == -ENOENT)
496 err = 0;
497 if (!err) {
498 if (!addr) {
499 memset(wdev->wext.keys->data[idx], 0,
500 sizeof(wdev->wext.keys->data[idx]));
501 wdev->wext.keys->params[idx].key_len = 0;
502 wdev->wext.keys->params[idx].cipher = 0;
503 }
504 if (idx == wdev->wext.default_key)
505 wdev->wext.default_key = -1;
506 else if (idx == wdev->wext.default_mgmt_key)
507 wdev->wext.default_mgmt_key = -1;
508 }
509
510 if (!err && rejoin)
511 err = cfg80211_ibss_wext_join(rdev, wdev);
512
513 return err;
514 }
515
516 if (addr)
517 tx_key = false;
518
519 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
520 return -EINVAL;
521
522 err = 0;
523 if (wdev->current_bss)
524 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
525 if (err)
526 return err;
527
528 if (!addr) {
529 wdev->wext.keys->params[idx] = *params;
530 memcpy(wdev->wext.keys->data[idx],
531 params->key, params->key_len);
532 wdev->wext.keys->params[idx].key =
533 wdev->wext.keys->data[idx];
534 }
535
536 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
537 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
538 (tx_key || (!addr && wdev->wext.default_key == -1))) {
539 if (wdev->current_bss) {
540 /*
541 * If we are getting a new TX key from not having
542 * had one before we need to join a new IBSS with
543 * the privacy bit set.
544 */
545 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
546 wdev->wext.default_key == -1) {
547 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
548 rejoin = true;
549 }
550 err = rdev_set_default_key(rdev, dev, idx, true, true);
551 }
552 if (!err) {
553 wdev->wext.default_key = idx;
554 if (rejoin)
555 err = cfg80211_ibss_wext_join(rdev, wdev);
556 }
557 return err;
558 }
559
560 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
561 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
562 if (wdev->current_bss)
563 err = rdev_set_default_mgmt_key(rdev, dev, idx);
564 if (!err)
565 wdev->wext.default_mgmt_key = idx;
566 return err;
567 }
568
569 return 0;
570 }
571
572 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
573 struct net_device *dev, bool pairwise,
574 const u8 *addr, bool remove, bool tx_key,
575 int idx, struct key_params *params)
576 {
577 int err;
578
579 wdev_lock(dev->ieee80211_ptr);
580 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
581 remove, tx_key, idx, params);
582 wdev_unlock(dev->ieee80211_ptr);
583
584 return err;
585 }
586
587 static int cfg80211_wext_siwencode(struct net_device *dev,
588 struct iw_request_info *info,
589 struct iw_point *erq, char *keybuf)
590 {
591 struct wireless_dev *wdev = dev->ieee80211_ptr;
592 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
593 int idx, err;
594 bool remove = false;
595 struct key_params params;
596
597 if (wdev->iftype != NL80211_IFTYPE_STATION &&
598 wdev->iftype != NL80211_IFTYPE_ADHOC)
599 return -EOPNOTSUPP;
600
601 /* no use -- only MFP (set_default_mgmt_key) is optional */
602 if (!rdev->ops->del_key ||
603 !rdev->ops->add_key ||
604 !rdev->ops->set_default_key)
605 return -EOPNOTSUPP;
606
607 idx = erq->flags & IW_ENCODE_INDEX;
608 if (idx == 0) {
609 idx = wdev->wext.default_key;
610 if (idx < 0)
611 idx = 0;
612 } else if (idx < 1 || idx > 4)
613 return -EINVAL;
614 else
615 idx--;
616
617 if (erq->flags & IW_ENCODE_DISABLED)
618 remove = true;
619 else if (erq->length == 0) {
620 /* No key data - just set the default TX key index */
621 err = 0;
622 wdev_lock(wdev);
623 if (wdev->current_bss)
624 err = rdev_set_default_key(rdev, dev, idx, true,
625 true);
626 if (!err)
627 wdev->wext.default_key = idx;
628 wdev_unlock(wdev);
629 return err;
630 }
631
632 memset(&params, 0, sizeof(params));
633 params.key = keybuf;
634 params.key_len = erq->length;
635 if (erq->length == 5)
636 params.cipher = WLAN_CIPHER_SUITE_WEP40;
637 else if (erq->length == 13)
638 params.cipher = WLAN_CIPHER_SUITE_WEP104;
639 else if (!remove)
640 return -EINVAL;
641
642 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
643 wdev->wext.default_key == -1,
644 idx, &params);
645 }
646
647 static int cfg80211_wext_siwencodeext(struct net_device *dev,
648 struct iw_request_info *info,
649 struct iw_point *erq, char *extra)
650 {
651 struct wireless_dev *wdev = dev->ieee80211_ptr;
652 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
653 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
654 const u8 *addr;
655 int idx;
656 bool remove = false;
657 struct key_params params;
658 u32 cipher;
659
660 if (wdev->iftype != NL80211_IFTYPE_STATION &&
661 wdev->iftype != NL80211_IFTYPE_ADHOC)
662 return -EOPNOTSUPP;
663
664 /* no use -- only MFP (set_default_mgmt_key) is optional */
665 if (!rdev->ops->del_key ||
666 !rdev->ops->add_key ||
667 !rdev->ops->set_default_key)
668 return -EOPNOTSUPP;
669
670 switch (ext->alg) {
671 case IW_ENCODE_ALG_NONE:
672 remove = true;
673 cipher = 0;
674 break;
675 case IW_ENCODE_ALG_WEP:
676 if (ext->key_len == 5)
677 cipher = WLAN_CIPHER_SUITE_WEP40;
678 else if (ext->key_len == 13)
679 cipher = WLAN_CIPHER_SUITE_WEP104;
680 else
681 return -EINVAL;
682 break;
683 case IW_ENCODE_ALG_TKIP:
684 cipher = WLAN_CIPHER_SUITE_TKIP;
685 break;
686 case IW_ENCODE_ALG_CCMP:
687 cipher = WLAN_CIPHER_SUITE_CCMP;
688 break;
689 case IW_ENCODE_ALG_AES_CMAC:
690 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
691 break;
692 default:
693 return -EOPNOTSUPP;
694 }
695
696 if (erq->flags & IW_ENCODE_DISABLED)
697 remove = true;
698
699 idx = erq->flags & IW_ENCODE_INDEX;
700 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
701 if (idx < 4 || idx > 5) {
702 idx = wdev->wext.default_mgmt_key;
703 if (idx < 0)
704 return -EINVAL;
705 } else
706 idx--;
707 } else {
708 if (idx < 1 || idx > 4) {
709 idx = wdev->wext.default_key;
710 if (idx < 0)
711 return -EINVAL;
712 } else
713 idx--;
714 }
715
716 addr = ext->addr.sa_data;
717 if (is_broadcast_ether_addr(addr))
718 addr = NULL;
719
720 memset(&params, 0, sizeof(params));
721 params.key = ext->key;
722 params.key_len = ext->key_len;
723 params.cipher = cipher;
724
725 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
726 params.seq = ext->rx_seq;
727 params.seq_len = 6;
728 }
729
730 return cfg80211_set_encryption(
731 rdev, dev,
732 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
733 addr, remove,
734 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
735 idx, &params);
736 }
737
738 static int cfg80211_wext_giwencode(struct net_device *dev,
739 struct iw_request_info *info,
740 struct iw_point *erq, char *keybuf)
741 {
742 struct wireless_dev *wdev = dev->ieee80211_ptr;
743 int idx;
744
745 if (wdev->iftype != NL80211_IFTYPE_STATION &&
746 wdev->iftype != NL80211_IFTYPE_ADHOC)
747 return -EOPNOTSUPP;
748
749 idx = erq->flags & IW_ENCODE_INDEX;
750 if (idx == 0) {
751 idx = wdev->wext.default_key;
752 if (idx < 0)
753 idx = 0;
754 } else if (idx < 1 || idx > 4)
755 return -EINVAL;
756 else
757 idx--;
758
759 erq->flags = idx + 1;
760
761 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
762 erq->flags |= IW_ENCODE_DISABLED;
763 erq->length = 0;
764 return 0;
765 }
766
767 erq->length = min_t(size_t, erq->length,
768 wdev->wext.keys->params[idx].key_len);
769 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
770 erq->flags |= IW_ENCODE_ENABLED;
771
772 return 0;
773 }
774
775 static int cfg80211_wext_siwfreq(struct net_device *dev,
776 struct iw_request_info *info,
777 struct iw_freq *wextfreq, char *extra)
778 {
779 struct wireless_dev *wdev = dev->ieee80211_ptr;
780 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
781 struct cfg80211_chan_def chandef = {
782 .width = NL80211_CHAN_WIDTH_20_NOHT,
783 };
784 int freq;
785
786 switch (wdev->iftype) {
787 case NL80211_IFTYPE_STATION:
788 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
789 case NL80211_IFTYPE_ADHOC:
790 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
791 case NL80211_IFTYPE_MONITOR:
792 freq = cfg80211_wext_freq(wextfreq);
793 if (freq < 0)
794 return freq;
795 if (freq == 0)
796 return -EINVAL;
797 chandef.center_freq1 = freq;
798 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
799 if (!chandef.chan)
800 return -EINVAL;
801 return cfg80211_set_monitor_channel(rdev, &chandef);
802 case NL80211_IFTYPE_MESH_POINT:
803 freq = cfg80211_wext_freq(wextfreq);
804 if (freq < 0)
805 return freq;
806 if (freq == 0)
807 return -EINVAL;
808 chandef.center_freq1 = freq;
809 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
810 if (!chandef.chan)
811 return -EINVAL;
812 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
813 default:
814 return -EOPNOTSUPP;
815 }
816 }
817
818 static int cfg80211_wext_giwfreq(struct net_device *dev,
819 struct iw_request_info *info,
820 struct iw_freq *freq, char *extra)
821 {
822 struct wireless_dev *wdev = dev->ieee80211_ptr;
823 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
824 struct cfg80211_chan_def chandef;
825 int ret;
826
827 switch (wdev->iftype) {
828 case NL80211_IFTYPE_STATION:
829 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
830 case NL80211_IFTYPE_ADHOC:
831 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
832 case NL80211_IFTYPE_MONITOR:
833 if (!rdev->ops->get_channel)
834 return -EINVAL;
835
836 ret = rdev_get_channel(rdev, wdev, &chandef);
837 if (ret)
838 return ret;
839 freq->m = chandef.chan->center_freq;
840 freq->e = 6;
841 return 0;
842 default:
843 return -EINVAL;
844 }
845 }
846
847 static int cfg80211_wext_siwtxpower(struct net_device *dev,
848 struct iw_request_info *info,
849 union iwreq_data *data, char *extra)
850 {
851 struct wireless_dev *wdev = dev->ieee80211_ptr;
852 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
853 enum nl80211_tx_power_setting type;
854 int dbm = 0;
855
856 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
857 return -EINVAL;
858 if (data->txpower.flags & IW_TXPOW_RANGE)
859 return -EINVAL;
860
861 if (!rdev->ops->set_tx_power)
862 return -EOPNOTSUPP;
863
864 /* only change when not disabling */
865 if (!data->txpower.disabled) {
866 rfkill_set_sw_state(rdev->rfkill, false);
867
868 if (data->txpower.fixed) {
869 /*
870 * wext doesn't support negative values, see
871 * below where it's for automatic
872 */
873 if (data->txpower.value < 0)
874 return -EINVAL;
875 dbm = data->txpower.value;
876 type = NL80211_TX_POWER_FIXED;
877 /* TODO: do regulatory check! */
878 } else {
879 /*
880 * Automatic power level setting, max being the value
881 * passed in from userland.
882 */
883 if (data->txpower.value < 0) {
884 type = NL80211_TX_POWER_AUTOMATIC;
885 } else {
886 dbm = data->txpower.value;
887 type = NL80211_TX_POWER_LIMITED;
888 }
889 }
890 } else {
891 rfkill_set_sw_state(rdev->rfkill, true);
892 schedule_work(&rdev->rfkill_sync);
893 return 0;
894 }
895
896 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
897 }
898
899 static int cfg80211_wext_giwtxpower(struct net_device *dev,
900 struct iw_request_info *info,
901 union iwreq_data *data, char *extra)
902 {
903 struct wireless_dev *wdev = dev->ieee80211_ptr;
904 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
905 int err, val;
906
907 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
908 return -EINVAL;
909 if (data->txpower.flags & IW_TXPOW_RANGE)
910 return -EINVAL;
911
912 if (!rdev->ops->get_tx_power)
913 return -EOPNOTSUPP;
914
915 err = rdev_get_tx_power(rdev, wdev, &val);
916 if (err)
917 return err;
918
919 /* well... oh well */
920 data->txpower.fixed = 1;
921 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
922 data->txpower.value = val;
923 data->txpower.flags = IW_TXPOW_DBM;
924
925 return 0;
926 }
927
928 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
929 s32 auth_alg)
930 {
931 int nr_alg = 0;
932
933 if (!auth_alg)
934 return -EINVAL;
935
936 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
937 IW_AUTH_ALG_SHARED_KEY |
938 IW_AUTH_ALG_LEAP))
939 return -EINVAL;
940
941 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
942 nr_alg++;
943 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
944 }
945
946 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
947 nr_alg++;
948 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
949 }
950
951 if (auth_alg & IW_AUTH_ALG_LEAP) {
952 nr_alg++;
953 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
954 }
955
956 if (nr_alg > 1)
957 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
958
959 return 0;
960 }
961
962 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
963 {
964 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
965 IW_AUTH_WPA_VERSION_WPA2|
966 IW_AUTH_WPA_VERSION_DISABLED))
967 return -EINVAL;
968
969 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
970 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
971 IW_AUTH_WPA_VERSION_WPA2)))
972 return -EINVAL;
973
974 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
975 wdev->wext.connect.crypto.wpa_versions &=
976 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
977
978 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
979 wdev->wext.connect.crypto.wpa_versions |=
980 NL80211_WPA_VERSION_1;
981
982 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
983 wdev->wext.connect.crypto.wpa_versions |=
984 NL80211_WPA_VERSION_2;
985
986 return 0;
987 }
988
989 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
990 {
991 if (cipher & IW_AUTH_CIPHER_WEP40)
992 wdev->wext.connect.crypto.cipher_group =
993 WLAN_CIPHER_SUITE_WEP40;
994 else if (cipher & IW_AUTH_CIPHER_WEP104)
995 wdev->wext.connect.crypto.cipher_group =
996 WLAN_CIPHER_SUITE_WEP104;
997 else if (cipher & IW_AUTH_CIPHER_TKIP)
998 wdev->wext.connect.crypto.cipher_group =
999 WLAN_CIPHER_SUITE_TKIP;
1000 else if (cipher & IW_AUTH_CIPHER_CCMP)
1001 wdev->wext.connect.crypto.cipher_group =
1002 WLAN_CIPHER_SUITE_CCMP;
1003 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1004 wdev->wext.connect.crypto.cipher_group =
1005 WLAN_CIPHER_SUITE_AES_CMAC;
1006 else if (cipher & IW_AUTH_CIPHER_NONE)
1007 wdev->wext.connect.crypto.cipher_group = 0;
1008 else
1009 return -EINVAL;
1010
1011 return 0;
1012 }
1013
1014 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1015 {
1016 int nr_ciphers = 0;
1017 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1018
1019 if (cipher & IW_AUTH_CIPHER_WEP40) {
1020 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1021 nr_ciphers++;
1022 }
1023
1024 if (cipher & IW_AUTH_CIPHER_WEP104) {
1025 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1026 nr_ciphers++;
1027 }
1028
1029 if (cipher & IW_AUTH_CIPHER_TKIP) {
1030 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1031 nr_ciphers++;
1032 }
1033
1034 if (cipher & IW_AUTH_CIPHER_CCMP) {
1035 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1036 nr_ciphers++;
1037 }
1038
1039 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1040 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1041 nr_ciphers++;
1042 }
1043
1044 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1045
1046 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1047
1048 return 0;
1049 }
1050
1051
1052 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1053 {
1054 int nr_akm_suites = 0;
1055
1056 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1057 IW_AUTH_KEY_MGMT_PSK))
1058 return -EINVAL;
1059
1060 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1061 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1062 WLAN_AKM_SUITE_8021X;
1063 nr_akm_suites++;
1064 }
1065
1066 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1067 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1068 WLAN_AKM_SUITE_PSK;
1069 nr_akm_suites++;
1070 }
1071
1072 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1073
1074 return 0;
1075 }
1076
1077 static int cfg80211_wext_siwauth(struct net_device *dev,
1078 struct iw_request_info *info,
1079 struct iw_param *data, char *extra)
1080 {
1081 struct wireless_dev *wdev = dev->ieee80211_ptr;
1082
1083 if (wdev->iftype != NL80211_IFTYPE_STATION)
1084 return -EOPNOTSUPP;
1085
1086 switch (data->flags & IW_AUTH_INDEX) {
1087 case IW_AUTH_PRIVACY_INVOKED:
1088 wdev->wext.connect.privacy = data->value;
1089 return 0;
1090 case IW_AUTH_WPA_VERSION:
1091 return cfg80211_set_wpa_version(wdev, data->value);
1092 case IW_AUTH_CIPHER_GROUP:
1093 return cfg80211_set_cipher_group(wdev, data->value);
1094 case IW_AUTH_KEY_MGMT:
1095 return cfg80211_set_key_mgt(wdev, data->value);
1096 case IW_AUTH_CIPHER_PAIRWISE:
1097 return cfg80211_set_cipher_pairwise(wdev, data->value);
1098 case IW_AUTH_80211_AUTH_ALG:
1099 return cfg80211_set_auth_alg(wdev, data->value);
1100 case IW_AUTH_WPA_ENABLED:
1101 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1102 case IW_AUTH_DROP_UNENCRYPTED:
1103 case IW_AUTH_MFP:
1104 return 0;
1105 default:
1106 return -EOPNOTSUPP;
1107 }
1108 }
1109
1110 static int cfg80211_wext_giwauth(struct net_device *dev,
1111 struct iw_request_info *info,
1112 struct iw_param *data, char *extra)
1113 {
1114 /* XXX: what do we need? */
1115
1116 return -EOPNOTSUPP;
1117 }
1118
1119 static int cfg80211_wext_siwpower(struct net_device *dev,
1120 struct iw_request_info *info,
1121 struct iw_param *wrq, char *extra)
1122 {
1123 struct wireless_dev *wdev = dev->ieee80211_ptr;
1124 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1125 bool ps = wdev->ps;
1126 int timeout = wdev->ps_timeout;
1127 int err;
1128
1129 if (wdev->iftype != NL80211_IFTYPE_STATION)
1130 return -EINVAL;
1131
1132 if (!rdev->ops->set_power_mgmt)
1133 return -EOPNOTSUPP;
1134
1135 if (wrq->disabled) {
1136 ps = false;
1137 } else {
1138 switch (wrq->flags & IW_POWER_MODE) {
1139 case IW_POWER_ON: /* If not specified */
1140 case IW_POWER_MODE: /* If set all mask */
1141 case IW_POWER_ALL_R: /* If explicitely state all */
1142 ps = true;
1143 break;
1144 default: /* Otherwise we ignore */
1145 return -EINVAL;
1146 }
1147
1148 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1149 return -EINVAL;
1150
1151 if (wrq->flags & IW_POWER_TIMEOUT)
1152 timeout = wrq->value / 1000;
1153 }
1154
1155 err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1156 if (err)
1157 return err;
1158
1159 wdev->ps = ps;
1160 wdev->ps_timeout = timeout;
1161
1162 return 0;
1163
1164 }
1165
1166 static int cfg80211_wext_giwpower(struct net_device *dev,
1167 struct iw_request_info *info,
1168 struct iw_param *wrq, char *extra)
1169 {
1170 struct wireless_dev *wdev = dev->ieee80211_ptr;
1171
1172 wrq->disabled = !wdev->ps;
1173
1174 return 0;
1175 }
1176
1177 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1178 struct iw_request_info *info,
1179 struct sockaddr *addr, char *extra)
1180 {
1181 struct wireless_dev *wdev = dev->ieee80211_ptr;
1182 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1183 int err;
1184
1185 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1186 return -EINVAL;
1187
1188 if (addr->sa_family != ARPHRD_ETHER)
1189 return -EINVAL;
1190
1191 if (netif_running(dev))
1192 return -EBUSY;
1193
1194 if (!rdev->ops->set_wds_peer)
1195 return -EOPNOTSUPP;
1196
1197 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1198 if (err)
1199 return err;
1200
1201 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1202
1203 return 0;
1204 }
1205
1206 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1207 struct iw_request_info *info,
1208 struct sockaddr *addr, char *extra)
1209 {
1210 struct wireless_dev *wdev = dev->ieee80211_ptr;
1211
1212 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1213 return -EINVAL;
1214
1215 addr->sa_family = ARPHRD_ETHER;
1216 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1217
1218 return 0;
1219 }
1220
1221 static int cfg80211_wext_siwrate(struct net_device *dev,
1222 struct iw_request_info *info,
1223 struct iw_param *rate, char *extra)
1224 {
1225 struct wireless_dev *wdev = dev->ieee80211_ptr;
1226 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1227 struct cfg80211_bitrate_mask mask;
1228 u32 fixed, maxrate;
1229 struct ieee80211_supported_band *sband;
1230 int band, ridx;
1231 bool match = false;
1232
1233 if (!rdev->ops->set_bitrate_mask)
1234 return -EOPNOTSUPP;
1235
1236 memset(&mask, 0, sizeof(mask));
1237 fixed = 0;
1238 maxrate = (u32)-1;
1239
1240 if (rate->value < 0) {
1241 /* nothing */
1242 } else if (rate->fixed) {
1243 fixed = rate->value / 100000;
1244 } else {
1245 maxrate = rate->value / 100000;
1246 }
1247
1248 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1249 sband = wdev->wiphy->bands[band];
1250 if (sband == NULL)
1251 continue;
1252 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1253 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1254 if (fixed == srate->bitrate) {
1255 mask.control[band].legacy = 1 << ridx;
1256 match = true;
1257 break;
1258 }
1259 if (srate->bitrate <= maxrate) {
1260 mask.control[band].legacy |= 1 << ridx;
1261 match = true;
1262 }
1263 }
1264 }
1265
1266 if (!match)
1267 return -EINVAL;
1268
1269 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1270 }
1271
1272 static int cfg80211_wext_giwrate(struct net_device *dev,
1273 struct iw_request_info *info,
1274 struct iw_param *rate, char *extra)
1275 {
1276 struct wireless_dev *wdev = dev->ieee80211_ptr;
1277 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1278 /* we are under RTNL - globally locked - so can use a static struct */
1279 static struct station_info sinfo;
1280 u8 addr[ETH_ALEN];
1281 int err;
1282
1283 if (wdev->iftype != NL80211_IFTYPE_STATION)
1284 return -EOPNOTSUPP;
1285
1286 if (!rdev->ops->get_station)
1287 return -EOPNOTSUPP;
1288
1289 err = 0;
1290 wdev_lock(wdev);
1291 if (wdev->current_bss)
1292 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1293 else
1294 err = -EOPNOTSUPP;
1295 wdev_unlock(wdev);
1296 if (err)
1297 return err;
1298
1299 err = rdev_get_station(rdev, dev, addr, &sinfo);
1300 if (err)
1301 return err;
1302
1303 if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)))
1304 return -EOPNOTSUPP;
1305
1306 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1307
1308 return 0;
1309 }
1310
1311 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1312 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1313 {
1314 struct wireless_dev *wdev = dev->ieee80211_ptr;
1315 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1316 /* we are under RTNL - globally locked - so can use static structs */
1317 static struct iw_statistics wstats;
1318 static struct station_info sinfo;
1319 u8 bssid[ETH_ALEN];
1320
1321 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1322 return NULL;
1323
1324 if (!rdev->ops->get_station)
1325 return NULL;
1326
1327 /* Grab BSSID of current BSS, if any */
1328 wdev_lock(wdev);
1329 if (!wdev->current_bss) {
1330 wdev_unlock(wdev);
1331 return NULL;
1332 }
1333 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1334 wdev_unlock(wdev);
1335
1336 memset(&sinfo, 0, sizeof(sinfo));
1337
1338 if (rdev_get_station(rdev, 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 & BIT(NL80211_STA_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 & BIT(NL80211_STA_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 & BIT(NL80211_STA_INFO_RX_DROP_MISC))
1373 wstats.discard.misc = sinfo.rx_dropped_misc;
1374 if (sinfo.filled & BIT(NL80211_STA_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_rdev(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_set_pmksa(rdev, dev, &cfg_pmksa);
1474
1475 case IW_PMKSA_REMOVE:
1476 if (!rdev->ops->del_pmksa)
1477 return -EOPNOTSUPP;
1478
1479 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1480
1481 case IW_PMKSA_FLUSH:
1482 if (!rdev->ops->flush_pmksa)
1483 return -EOPNOTSUPP;
1484
1485 return rdev_flush_pmksa(rdev, 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 };