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Merge tag 'hwlock-v4.15' of git://github.com/andersson/remoteproc
[mirror_ubuntu-bionic-kernel.git] / net / wireless / wext-compat.c
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * cfg80211 - wext compat code
4 *
5 * This is temporary code until all wireless functionality is migrated
6 * into cfg80211, when that happens all the exports here go away and
7 * we directly assign the wireless handlers of wireless interfaces.
8 *
9 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
10 */
11
12 #include <linux/export.h>
13 #include <linux/wireless.h>
14 #include <linux/nl80211.h>
15 #include <linux/if_arp.h>
16 #include <linux/etherdevice.h>
17 #include <linux/slab.h>
18 #include <net/iw_handler.h>
19 #include <net/cfg80211.h>
20 #include <net/cfg80211-wext.h>
21 #include "wext-compat.h"
22 #include "core.h"
23 #include "rdev-ops.h"
24
25 int cfg80211_wext_giwname(struct net_device *dev,
26 struct iw_request_info *info,
27 char *name, char *extra)
28 {
29 strcpy(name, "IEEE 802.11");
30 return 0;
31 }
32 EXPORT_WEXT_HANDLER(cfg80211_wext_giwname);
33
34 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
35 u32 *mode, char *extra)
36 {
37 struct wireless_dev *wdev = dev->ieee80211_ptr;
38 struct cfg80211_registered_device *rdev;
39 struct vif_params vifparams;
40 enum nl80211_iftype type;
41
42 rdev = wiphy_to_rdev(wdev->wiphy);
43
44 switch (*mode) {
45 case IW_MODE_INFRA:
46 type = NL80211_IFTYPE_STATION;
47 break;
48 case IW_MODE_ADHOC:
49 type = NL80211_IFTYPE_ADHOC;
50 break;
51 case IW_MODE_REPEAT:
52 type = NL80211_IFTYPE_WDS;
53 break;
54 case IW_MODE_MONITOR:
55 type = NL80211_IFTYPE_MONITOR;
56 break;
57 default:
58 return -EINVAL;
59 }
60
61 if (type == wdev->iftype)
62 return 0;
63
64 memset(&vifparams, 0, sizeof(vifparams));
65
66 return cfg80211_change_iface(rdev, dev, type, &vifparams);
67 }
68 EXPORT_WEXT_HANDLER(cfg80211_wext_siwmode);
69
70 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
71 u32 *mode, char *extra)
72 {
73 struct wireless_dev *wdev = dev->ieee80211_ptr;
74
75 if (!wdev)
76 return -EOPNOTSUPP;
77
78 switch (wdev->iftype) {
79 case NL80211_IFTYPE_AP:
80 *mode = IW_MODE_MASTER;
81 break;
82 case NL80211_IFTYPE_STATION:
83 *mode = IW_MODE_INFRA;
84 break;
85 case NL80211_IFTYPE_ADHOC:
86 *mode = IW_MODE_ADHOC;
87 break;
88 case NL80211_IFTYPE_MONITOR:
89 *mode = IW_MODE_MONITOR;
90 break;
91 case NL80211_IFTYPE_WDS:
92 *mode = IW_MODE_REPEAT;
93 break;
94 case NL80211_IFTYPE_AP_VLAN:
95 *mode = IW_MODE_SECOND; /* FIXME */
96 break;
97 default:
98 *mode = IW_MODE_AUTO;
99 break;
100 }
101 return 0;
102 }
103 EXPORT_WEXT_HANDLER(cfg80211_wext_giwmode);
104
105
106 int cfg80211_wext_giwrange(struct net_device *dev,
107 struct iw_request_info *info,
108 struct iw_point *data, char *extra)
109 {
110 struct wireless_dev *wdev = dev->ieee80211_ptr;
111 struct iw_range *range = (struct iw_range *) extra;
112 enum nl80211_band band;
113 int i, c = 0;
114
115 if (!wdev)
116 return -EOPNOTSUPP;
117
118 data->length = sizeof(struct iw_range);
119 memset(range, 0, sizeof(struct iw_range));
120
121 range->we_version_compiled = WIRELESS_EXT;
122 range->we_version_source = 21;
123 range->retry_capa = IW_RETRY_LIMIT;
124 range->retry_flags = IW_RETRY_LIMIT;
125 range->min_retry = 0;
126 range->max_retry = 255;
127 range->min_rts = 0;
128 range->max_rts = 2347;
129 range->min_frag = 256;
130 range->max_frag = 2346;
131
132 range->max_encoding_tokens = 4;
133
134 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
135
136 switch (wdev->wiphy->signal_type) {
137 case CFG80211_SIGNAL_TYPE_NONE:
138 break;
139 case CFG80211_SIGNAL_TYPE_MBM:
140 range->max_qual.level = (u8)-110;
141 range->max_qual.qual = 70;
142 range->avg_qual.qual = 35;
143 range->max_qual.updated |= IW_QUAL_DBM;
144 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
145 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
146 break;
147 case CFG80211_SIGNAL_TYPE_UNSPEC:
148 range->max_qual.level = 100;
149 range->max_qual.qual = 100;
150 range->avg_qual.qual = 50;
151 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
152 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
153 break;
154 }
155
156 range->avg_qual.level = range->max_qual.level / 2;
157 range->avg_qual.noise = range->max_qual.noise / 2;
158 range->avg_qual.updated = range->max_qual.updated;
159
160 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
161 switch (wdev->wiphy->cipher_suites[i]) {
162 case WLAN_CIPHER_SUITE_TKIP:
163 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
164 IW_ENC_CAPA_WPA);
165 break;
166
167 case WLAN_CIPHER_SUITE_CCMP:
168 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
169 IW_ENC_CAPA_WPA2);
170 break;
171
172 case WLAN_CIPHER_SUITE_WEP40:
173 range->encoding_size[range->num_encoding_sizes++] =
174 WLAN_KEY_LEN_WEP40;
175 break;
176
177 case WLAN_CIPHER_SUITE_WEP104:
178 range->encoding_size[range->num_encoding_sizes++] =
179 WLAN_KEY_LEN_WEP104;
180 break;
181 }
182 }
183
184 for (band = 0; band < NUM_NL80211_BANDS; band ++) {
185 struct ieee80211_supported_band *sband;
186
187 sband = wdev->wiphy->bands[band];
188
189 if (!sband)
190 continue;
191
192 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
193 struct ieee80211_channel *chan = &sband->channels[i];
194
195 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
196 range->freq[c].i =
197 ieee80211_frequency_to_channel(
198 chan->center_freq);
199 range->freq[c].m = chan->center_freq;
200 range->freq[c].e = 6;
201 c++;
202 }
203 }
204 }
205 range->num_channels = c;
206 range->num_frequency = c;
207
208 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
209 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
210 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
211
212 if (wdev->wiphy->max_scan_ssids > 0)
213 range->scan_capa |= IW_SCAN_CAPA_ESSID;
214
215 return 0;
216 }
217 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrange);
218
219
220 /**
221 * cfg80211_wext_freq - get wext frequency for non-"auto"
222 * @dev: the net device
223 * @freq: the wext freq encoding
224 *
225 * Returns a frequency, or a negative error code, or 0 for auto.
226 */
227 int cfg80211_wext_freq(struct iw_freq *freq)
228 {
229 /*
230 * Parse frequency - return 0 for auto and
231 * -EINVAL for impossible things.
232 */
233 if (freq->e == 0) {
234 enum nl80211_band band = NL80211_BAND_2GHZ;
235 if (freq->m < 0)
236 return 0;
237 if (freq->m > 14)
238 band = NL80211_BAND_5GHZ;
239 return ieee80211_channel_to_frequency(freq->m, band);
240 } else {
241 int i, div = 1000000;
242 for (i = 0; i < freq->e; i++)
243 div /= 10;
244 if (div <= 0)
245 return -EINVAL;
246 return freq->m / div;
247 }
248 }
249
250 int cfg80211_wext_siwrts(struct net_device *dev,
251 struct iw_request_info *info,
252 struct iw_param *rts, char *extra)
253 {
254 struct wireless_dev *wdev = dev->ieee80211_ptr;
255 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
256 u32 orts = wdev->wiphy->rts_threshold;
257 int err;
258
259 if (rts->disabled || !rts->fixed)
260 wdev->wiphy->rts_threshold = (u32) -1;
261 else if (rts->value < 0)
262 return -EINVAL;
263 else
264 wdev->wiphy->rts_threshold = rts->value;
265
266 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
267 if (err)
268 wdev->wiphy->rts_threshold = orts;
269
270 return err;
271 }
272 EXPORT_WEXT_HANDLER(cfg80211_wext_siwrts);
273
274 int cfg80211_wext_giwrts(struct net_device *dev,
275 struct iw_request_info *info,
276 struct iw_param *rts, char *extra)
277 {
278 struct wireless_dev *wdev = dev->ieee80211_ptr;
279
280 rts->value = wdev->wiphy->rts_threshold;
281 rts->disabled = rts->value == (u32) -1;
282 rts->fixed = 1;
283
284 return 0;
285 }
286 EXPORT_WEXT_HANDLER(cfg80211_wext_giwrts);
287
288 int cfg80211_wext_siwfrag(struct net_device *dev,
289 struct iw_request_info *info,
290 struct iw_param *frag, char *extra)
291 {
292 struct wireless_dev *wdev = dev->ieee80211_ptr;
293 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
294 u32 ofrag = wdev->wiphy->frag_threshold;
295 int err;
296
297 if (frag->disabled || !frag->fixed)
298 wdev->wiphy->frag_threshold = (u32) -1;
299 else if (frag->value < 256)
300 return -EINVAL;
301 else {
302 /* Fragment length must be even, so strip LSB. */
303 wdev->wiphy->frag_threshold = frag->value & ~0x1;
304 }
305
306 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
307 if (err)
308 wdev->wiphy->frag_threshold = ofrag;
309
310 return err;
311 }
312 EXPORT_WEXT_HANDLER(cfg80211_wext_siwfrag);
313
314 int cfg80211_wext_giwfrag(struct net_device *dev,
315 struct iw_request_info *info,
316 struct iw_param *frag, char *extra)
317 {
318 struct wireless_dev *wdev = dev->ieee80211_ptr;
319
320 frag->value = wdev->wiphy->frag_threshold;
321 frag->disabled = frag->value == (u32) -1;
322 frag->fixed = 1;
323
324 return 0;
325 }
326 EXPORT_WEXT_HANDLER(cfg80211_wext_giwfrag);
327
328 static int cfg80211_wext_siwretry(struct net_device *dev,
329 struct iw_request_info *info,
330 struct iw_param *retry, char *extra)
331 {
332 struct wireless_dev *wdev = dev->ieee80211_ptr;
333 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
334 u32 changed = 0;
335 u8 olong = wdev->wiphy->retry_long;
336 u8 oshort = wdev->wiphy->retry_short;
337 int err;
338
339 if (retry->disabled || retry->value < 1 || retry->value > 255 ||
340 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
341 return -EINVAL;
342
343 if (retry->flags & IW_RETRY_LONG) {
344 wdev->wiphy->retry_long = retry->value;
345 changed |= WIPHY_PARAM_RETRY_LONG;
346 } else if (retry->flags & IW_RETRY_SHORT) {
347 wdev->wiphy->retry_short = retry->value;
348 changed |= WIPHY_PARAM_RETRY_SHORT;
349 } else {
350 wdev->wiphy->retry_short = retry->value;
351 wdev->wiphy->retry_long = retry->value;
352 changed |= WIPHY_PARAM_RETRY_LONG;
353 changed |= WIPHY_PARAM_RETRY_SHORT;
354 }
355
356 if (!changed)
357 return 0;
358
359 err = rdev_set_wiphy_params(rdev, changed);
360 if (err) {
361 wdev->wiphy->retry_short = oshort;
362 wdev->wiphy->retry_long = olong;
363 }
364
365 return err;
366 }
367
368 int cfg80211_wext_giwretry(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
374 retry->disabled = 0;
375
376 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
377 /*
378 * First return short value, iwconfig will ask long value
379 * later if needed
380 */
381 retry->flags |= IW_RETRY_LIMIT | IW_RETRY_SHORT;
382 retry->value = wdev->wiphy->retry_short;
383 if (wdev->wiphy->retry_long == wdev->wiphy->retry_short)
384 retry->flags |= IW_RETRY_LONG;
385
386 return 0;
387 }
388
389 if (retry->flags & IW_RETRY_LONG) {
390 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
391 retry->value = wdev->wiphy->retry_long;
392 }
393
394 return 0;
395 }
396 EXPORT_WEXT_HANDLER(cfg80211_wext_giwretry);
397
398 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
399 struct net_device *dev, bool pairwise,
400 const u8 *addr, bool remove, bool tx_key,
401 int idx, struct key_params *params)
402 {
403 struct wireless_dev *wdev = dev->ieee80211_ptr;
404 int err, i;
405 bool rejoin = false;
406
407 if (pairwise && !addr)
408 return -EINVAL;
409
410 /*
411 * In many cases we won't actually need this, but it's better
412 * to do it first in case the allocation fails. Don't use wext.
413 */
414 if (!wdev->wext.keys) {
415 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
416 GFP_KERNEL);
417 if (!wdev->wext.keys)
418 return -ENOMEM;
419 for (i = 0; i < CFG80211_MAX_WEP_KEYS; i++)
420 wdev->wext.keys->params[i].key =
421 wdev->wext.keys->data[i];
422 }
423
424 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
425 wdev->iftype != NL80211_IFTYPE_STATION)
426 return -EOPNOTSUPP;
427
428 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
429 if (!wdev->current_bss)
430 return -ENOLINK;
431
432 if (!rdev->ops->set_default_mgmt_key)
433 return -EOPNOTSUPP;
434
435 if (idx < 4 || idx > 5)
436 return -EINVAL;
437 } else if (idx < 0 || idx > 3)
438 return -EINVAL;
439
440 if (remove) {
441 err = 0;
442 if (wdev->current_bss) {
443 /*
444 * If removing the current TX key, we will need to
445 * join a new IBSS without the privacy bit clear.
446 */
447 if (idx == wdev->wext.default_key &&
448 wdev->iftype == NL80211_IFTYPE_ADHOC) {
449 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
450 rejoin = true;
451 }
452
453 if (!pairwise && addr &&
454 !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
455 err = -ENOENT;
456 else
457 err = rdev_del_key(rdev, dev, idx, pairwise,
458 addr);
459 }
460 wdev->wext.connect.privacy = false;
461 /*
462 * Applications using wireless extensions expect to be
463 * able to delete keys that don't exist, so allow that.
464 */
465 if (err == -ENOENT)
466 err = 0;
467 if (!err) {
468 if (!addr && idx < 4) {
469 memset(wdev->wext.keys->data[idx], 0,
470 sizeof(wdev->wext.keys->data[idx]));
471 wdev->wext.keys->params[idx].key_len = 0;
472 wdev->wext.keys->params[idx].cipher = 0;
473 }
474 if (idx == wdev->wext.default_key)
475 wdev->wext.default_key = -1;
476 else if (idx == wdev->wext.default_mgmt_key)
477 wdev->wext.default_mgmt_key = -1;
478 }
479
480 if (!err && rejoin)
481 err = cfg80211_ibss_wext_join(rdev, wdev);
482
483 return err;
484 }
485
486 if (addr)
487 tx_key = false;
488
489 if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
490 return -EINVAL;
491
492 err = 0;
493 if (wdev->current_bss)
494 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
495 else if (params->cipher != WLAN_CIPHER_SUITE_WEP40 &&
496 params->cipher != WLAN_CIPHER_SUITE_WEP104)
497 return -EINVAL;
498 if (err)
499 return err;
500
501 /*
502 * We only need to store WEP keys, since they're the only keys that
503 * can be be set before a connection is established and persist after
504 * disconnecting.
505 */
506 if (!addr && (params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
507 params->cipher == WLAN_CIPHER_SUITE_WEP104)) {
508 wdev->wext.keys->params[idx] = *params;
509 memcpy(wdev->wext.keys->data[idx],
510 params->key, params->key_len);
511 wdev->wext.keys->params[idx].key =
512 wdev->wext.keys->data[idx];
513 }
514
515 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
516 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
517 (tx_key || (!addr && wdev->wext.default_key == -1))) {
518 if (wdev->current_bss) {
519 /*
520 * If we are getting a new TX key from not having
521 * had one before we need to join a new IBSS with
522 * the privacy bit set.
523 */
524 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
525 wdev->wext.default_key == -1) {
526 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
527 rejoin = true;
528 }
529 err = rdev_set_default_key(rdev, dev, idx, true, true);
530 }
531 if (!err) {
532 wdev->wext.default_key = idx;
533 if (rejoin)
534 err = cfg80211_ibss_wext_join(rdev, wdev);
535 }
536 return err;
537 }
538
539 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
540 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
541 if (wdev->current_bss)
542 err = rdev_set_default_mgmt_key(rdev, dev, idx);
543 if (!err)
544 wdev->wext.default_mgmt_key = idx;
545 return err;
546 }
547
548 return 0;
549 }
550
551 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
552 struct net_device *dev, bool pairwise,
553 const u8 *addr, bool remove, bool tx_key,
554 int idx, struct key_params *params)
555 {
556 int err;
557
558 wdev_lock(dev->ieee80211_ptr);
559 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
560 remove, tx_key, idx, params);
561 wdev_unlock(dev->ieee80211_ptr);
562
563 return err;
564 }
565
566 static int cfg80211_wext_siwencode(struct net_device *dev,
567 struct iw_request_info *info,
568 struct iw_point *erq, char *keybuf)
569 {
570 struct wireless_dev *wdev = dev->ieee80211_ptr;
571 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
572 int idx, err;
573 bool remove = false;
574 struct key_params params;
575
576 if (wdev->iftype != NL80211_IFTYPE_STATION &&
577 wdev->iftype != NL80211_IFTYPE_ADHOC)
578 return -EOPNOTSUPP;
579
580 /* no use -- only MFP (set_default_mgmt_key) is optional */
581 if (!rdev->ops->del_key ||
582 !rdev->ops->add_key ||
583 !rdev->ops->set_default_key)
584 return -EOPNOTSUPP;
585
586 idx = erq->flags & IW_ENCODE_INDEX;
587 if (idx == 0) {
588 idx = wdev->wext.default_key;
589 if (idx < 0)
590 idx = 0;
591 } else if (idx < 1 || idx > 4)
592 return -EINVAL;
593 else
594 idx--;
595
596 if (erq->flags & IW_ENCODE_DISABLED)
597 remove = true;
598 else if (erq->length == 0) {
599 /* No key data - just set the default TX key index */
600 err = 0;
601 wdev_lock(wdev);
602 if (wdev->current_bss)
603 err = rdev_set_default_key(rdev, dev, idx, true,
604 true);
605 if (!err)
606 wdev->wext.default_key = idx;
607 wdev_unlock(wdev);
608 return err;
609 }
610
611 memset(&params, 0, sizeof(params));
612 params.key = keybuf;
613 params.key_len = erq->length;
614 if (erq->length == 5)
615 params.cipher = WLAN_CIPHER_SUITE_WEP40;
616 else if (erq->length == 13)
617 params.cipher = WLAN_CIPHER_SUITE_WEP104;
618 else if (!remove)
619 return -EINVAL;
620
621 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
622 wdev->wext.default_key == -1,
623 idx, &params);
624 }
625
626 static int cfg80211_wext_siwencodeext(struct net_device *dev,
627 struct iw_request_info *info,
628 struct iw_point *erq, char *extra)
629 {
630 struct wireless_dev *wdev = dev->ieee80211_ptr;
631 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
632 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
633 const u8 *addr;
634 int idx;
635 bool remove = false;
636 struct key_params params;
637 u32 cipher;
638
639 if (wdev->iftype != NL80211_IFTYPE_STATION &&
640 wdev->iftype != NL80211_IFTYPE_ADHOC)
641 return -EOPNOTSUPP;
642
643 /* no use -- only MFP (set_default_mgmt_key) is optional */
644 if (!rdev->ops->del_key ||
645 !rdev->ops->add_key ||
646 !rdev->ops->set_default_key)
647 return -EOPNOTSUPP;
648
649 switch (ext->alg) {
650 case IW_ENCODE_ALG_NONE:
651 remove = true;
652 cipher = 0;
653 break;
654 case IW_ENCODE_ALG_WEP:
655 if (ext->key_len == 5)
656 cipher = WLAN_CIPHER_SUITE_WEP40;
657 else if (ext->key_len == 13)
658 cipher = WLAN_CIPHER_SUITE_WEP104;
659 else
660 return -EINVAL;
661 break;
662 case IW_ENCODE_ALG_TKIP:
663 cipher = WLAN_CIPHER_SUITE_TKIP;
664 break;
665 case IW_ENCODE_ALG_CCMP:
666 cipher = WLAN_CIPHER_SUITE_CCMP;
667 break;
668 case IW_ENCODE_ALG_AES_CMAC:
669 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
670 break;
671 default:
672 return -EOPNOTSUPP;
673 }
674
675 if (erq->flags & IW_ENCODE_DISABLED)
676 remove = true;
677
678 idx = erq->flags & IW_ENCODE_INDEX;
679 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
680 if (idx < 4 || idx > 5) {
681 idx = wdev->wext.default_mgmt_key;
682 if (idx < 0)
683 return -EINVAL;
684 } else
685 idx--;
686 } else {
687 if (idx < 1 || idx > 4) {
688 idx = wdev->wext.default_key;
689 if (idx < 0)
690 return -EINVAL;
691 } else
692 idx--;
693 }
694
695 addr = ext->addr.sa_data;
696 if (is_broadcast_ether_addr(addr))
697 addr = NULL;
698
699 memset(&params, 0, sizeof(params));
700 params.key = ext->key;
701 params.key_len = ext->key_len;
702 params.cipher = cipher;
703
704 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
705 params.seq = ext->rx_seq;
706 params.seq_len = 6;
707 }
708
709 return cfg80211_set_encryption(
710 rdev, dev,
711 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
712 addr, remove,
713 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
714 idx, &params);
715 }
716
717 static int cfg80211_wext_giwencode(struct net_device *dev,
718 struct iw_request_info *info,
719 struct iw_point *erq, char *keybuf)
720 {
721 struct wireless_dev *wdev = dev->ieee80211_ptr;
722 int idx;
723
724 if (wdev->iftype != NL80211_IFTYPE_STATION &&
725 wdev->iftype != NL80211_IFTYPE_ADHOC)
726 return -EOPNOTSUPP;
727
728 idx = erq->flags & IW_ENCODE_INDEX;
729 if (idx == 0) {
730 idx = wdev->wext.default_key;
731 if (idx < 0)
732 idx = 0;
733 } else if (idx < 1 || idx > 4)
734 return -EINVAL;
735 else
736 idx--;
737
738 erq->flags = idx + 1;
739
740 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
741 erq->flags |= IW_ENCODE_DISABLED;
742 erq->length = 0;
743 return 0;
744 }
745
746 erq->length = min_t(size_t, erq->length,
747 wdev->wext.keys->params[idx].key_len);
748 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
749 erq->flags |= IW_ENCODE_ENABLED;
750
751 return 0;
752 }
753
754 static int cfg80211_wext_siwfreq(struct net_device *dev,
755 struct iw_request_info *info,
756 struct iw_freq *wextfreq, char *extra)
757 {
758 struct wireless_dev *wdev = dev->ieee80211_ptr;
759 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
760 struct cfg80211_chan_def chandef = {
761 .width = NL80211_CHAN_WIDTH_20_NOHT,
762 };
763 int freq;
764
765 switch (wdev->iftype) {
766 case NL80211_IFTYPE_STATION:
767 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
768 case NL80211_IFTYPE_ADHOC:
769 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
770 case NL80211_IFTYPE_MONITOR:
771 freq = cfg80211_wext_freq(wextfreq);
772 if (freq < 0)
773 return freq;
774 if (freq == 0)
775 return -EINVAL;
776 chandef.center_freq1 = freq;
777 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
778 if (!chandef.chan)
779 return -EINVAL;
780 return cfg80211_set_monitor_channel(rdev, &chandef);
781 case NL80211_IFTYPE_MESH_POINT:
782 freq = cfg80211_wext_freq(wextfreq);
783 if (freq < 0)
784 return freq;
785 if (freq == 0)
786 return -EINVAL;
787 chandef.center_freq1 = freq;
788 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
789 if (!chandef.chan)
790 return -EINVAL;
791 return cfg80211_set_mesh_channel(rdev, wdev, &chandef);
792 default:
793 return -EOPNOTSUPP;
794 }
795 }
796
797 static int cfg80211_wext_giwfreq(struct net_device *dev,
798 struct iw_request_info *info,
799 struct iw_freq *freq, char *extra)
800 {
801 struct wireless_dev *wdev = dev->ieee80211_ptr;
802 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
803 struct cfg80211_chan_def chandef;
804 int ret;
805
806 switch (wdev->iftype) {
807 case NL80211_IFTYPE_STATION:
808 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
809 case NL80211_IFTYPE_ADHOC:
810 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
811 case NL80211_IFTYPE_MONITOR:
812 if (!rdev->ops->get_channel)
813 return -EINVAL;
814
815 ret = rdev_get_channel(rdev, wdev, &chandef);
816 if (ret)
817 return ret;
818 freq->m = chandef.chan->center_freq;
819 freq->e = 6;
820 return 0;
821 default:
822 return -EINVAL;
823 }
824 }
825
826 static int cfg80211_wext_siwtxpower(struct net_device *dev,
827 struct iw_request_info *info,
828 union iwreq_data *data, char *extra)
829 {
830 struct wireless_dev *wdev = dev->ieee80211_ptr;
831 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
832 enum nl80211_tx_power_setting type;
833 int dbm = 0;
834
835 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
836 return -EINVAL;
837 if (data->txpower.flags & IW_TXPOW_RANGE)
838 return -EINVAL;
839
840 if (!rdev->ops->set_tx_power)
841 return -EOPNOTSUPP;
842
843 /* only change when not disabling */
844 if (!data->txpower.disabled) {
845 rfkill_set_sw_state(rdev->rfkill, false);
846
847 if (data->txpower.fixed) {
848 /*
849 * wext doesn't support negative values, see
850 * below where it's for automatic
851 */
852 if (data->txpower.value < 0)
853 return -EINVAL;
854 dbm = data->txpower.value;
855 type = NL80211_TX_POWER_FIXED;
856 /* TODO: do regulatory check! */
857 } else {
858 /*
859 * Automatic power level setting, max being the value
860 * passed in from userland.
861 */
862 if (data->txpower.value < 0) {
863 type = NL80211_TX_POWER_AUTOMATIC;
864 } else {
865 dbm = data->txpower.value;
866 type = NL80211_TX_POWER_LIMITED;
867 }
868 }
869 } else {
870 rfkill_set_sw_state(rdev->rfkill, true);
871 schedule_work(&rdev->rfkill_sync);
872 return 0;
873 }
874
875 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
876 }
877
878 static int cfg80211_wext_giwtxpower(struct net_device *dev,
879 struct iw_request_info *info,
880 union iwreq_data *data, char *extra)
881 {
882 struct wireless_dev *wdev = dev->ieee80211_ptr;
883 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
884 int err, val;
885
886 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
887 return -EINVAL;
888 if (data->txpower.flags & IW_TXPOW_RANGE)
889 return -EINVAL;
890
891 if (!rdev->ops->get_tx_power)
892 return -EOPNOTSUPP;
893
894 err = rdev_get_tx_power(rdev, wdev, &val);
895 if (err)
896 return err;
897
898 /* well... oh well */
899 data->txpower.fixed = 1;
900 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
901 data->txpower.value = val;
902 data->txpower.flags = IW_TXPOW_DBM;
903
904 return 0;
905 }
906
907 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
908 s32 auth_alg)
909 {
910 int nr_alg = 0;
911
912 if (!auth_alg)
913 return -EINVAL;
914
915 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
916 IW_AUTH_ALG_SHARED_KEY |
917 IW_AUTH_ALG_LEAP))
918 return -EINVAL;
919
920 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
921 nr_alg++;
922 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
923 }
924
925 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
926 nr_alg++;
927 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
928 }
929
930 if (auth_alg & IW_AUTH_ALG_LEAP) {
931 nr_alg++;
932 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
933 }
934
935 if (nr_alg > 1)
936 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
937
938 return 0;
939 }
940
941 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
942 {
943 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
944 IW_AUTH_WPA_VERSION_WPA2|
945 IW_AUTH_WPA_VERSION_DISABLED))
946 return -EINVAL;
947
948 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
949 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
950 IW_AUTH_WPA_VERSION_WPA2)))
951 return -EINVAL;
952
953 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
954 wdev->wext.connect.crypto.wpa_versions &=
955 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
956
957 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
958 wdev->wext.connect.crypto.wpa_versions |=
959 NL80211_WPA_VERSION_1;
960
961 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
962 wdev->wext.connect.crypto.wpa_versions |=
963 NL80211_WPA_VERSION_2;
964
965 return 0;
966 }
967
968 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
969 {
970 if (cipher & IW_AUTH_CIPHER_WEP40)
971 wdev->wext.connect.crypto.cipher_group =
972 WLAN_CIPHER_SUITE_WEP40;
973 else if (cipher & IW_AUTH_CIPHER_WEP104)
974 wdev->wext.connect.crypto.cipher_group =
975 WLAN_CIPHER_SUITE_WEP104;
976 else if (cipher & IW_AUTH_CIPHER_TKIP)
977 wdev->wext.connect.crypto.cipher_group =
978 WLAN_CIPHER_SUITE_TKIP;
979 else if (cipher & IW_AUTH_CIPHER_CCMP)
980 wdev->wext.connect.crypto.cipher_group =
981 WLAN_CIPHER_SUITE_CCMP;
982 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
983 wdev->wext.connect.crypto.cipher_group =
984 WLAN_CIPHER_SUITE_AES_CMAC;
985 else if (cipher & IW_AUTH_CIPHER_NONE)
986 wdev->wext.connect.crypto.cipher_group = 0;
987 else
988 return -EINVAL;
989
990 return 0;
991 }
992
993 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
994 {
995 int nr_ciphers = 0;
996 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
997
998 if (cipher & IW_AUTH_CIPHER_WEP40) {
999 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1000 nr_ciphers++;
1001 }
1002
1003 if (cipher & IW_AUTH_CIPHER_WEP104) {
1004 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1005 nr_ciphers++;
1006 }
1007
1008 if (cipher & IW_AUTH_CIPHER_TKIP) {
1009 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1010 nr_ciphers++;
1011 }
1012
1013 if (cipher & IW_AUTH_CIPHER_CCMP) {
1014 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1015 nr_ciphers++;
1016 }
1017
1018 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1019 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1020 nr_ciphers++;
1021 }
1022
1023 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1024
1025 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1026
1027 return 0;
1028 }
1029
1030
1031 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1032 {
1033 int nr_akm_suites = 0;
1034
1035 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1036 IW_AUTH_KEY_MGMT_PSK))
1037 return -EINVAL;
1038
1039 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1040 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1041 WLAN_AKM_SUITE_8021X;
1042 nr_akm_suites++;
1043 }
1044
1045 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1046 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1047 WLAN_AKM_SUITE_PSK;
1048 nr_akm_suites++;
1049 }
1050
1051 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1052
1053 return 0;
1054 }
1055
1056 static int cfg80211_wext_siwauth(struct net_device *dev,
1057 struct iw_request_info *info,
1058 struct iw_param *data, char *extra)
1059 {
1060 struct wireless_dev *wdev = dev->ieee80211_ptr;
1061
1062 if (wdev->iftype != NL80211_IFTYPE_STATION)
1063 return -EOPNOTSUPP;
1064
1065 switch (data->flags & IW_AUTH_INDEX) {
1066 case IW_AUTH_PRIVACY_INVOKED:
1067 wdev->wext.connect.privacy = data->value;
1068 return 0;
1069 case IW_AUTH_WPA_VERSION:
1070 return cfg80211_set_wpa_version(wdev, data->value);
1071 case IW_AUTH_CIPHER_GROUP:
1072 return cfg80211_set_cipher_group(wdev, data->value);
1073 case IW_AUTH_KEY_MGMT:
1074 return cfg80211_set_key_mgt(wdev, data->value);
1075 case IW_AUTH_CIPHER_PAIRWISE:
1076 return cfg80211_set_cipher_pairwise(wdev, data->value);
1077 case IW_AUTH_80211_AUTH_ALG:
1078 return cfg80211_set_auth_alg(wdev, data->value);
1079 case IW_AUTH_WPA_ENABLED:
1080 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1081 case IW_AUTH_DROP_UNENCRYPTED:
1082 case IW_AUTH_MFP:
1083 return 0;
1084 default:
1085 return -EOPNOTSUPP;
1086 }
1087 }
1088
1089 static int cfg80211_wext_giwauth(struct net_device *dev,
1090 struct iw_request_info *info,
1091 struct iw_param *data, char *extra)
1092 {
1093 /* XXX: what do we need? */
1094
1095 return -EOPNOTSUPP;
1096 }
1097
1098 static int cfg80211_wext_siwpower(struct net_device *dev,
1099 struct iw_request_info *info,
1100 struct iw_param *wrq, char *extra)
1101 {
1102 struct wireless_dev *wdev = dev->ieee80211_ptr;
1103 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1104 bool ps = wdev->ps;
1105 int timeout = wdev->ps_timeout;
1106 int err;
1107
1108 if (wdev->iftype != NL80211_IFTYPE_STATION)
1109 return -EINVAL;
1110
1111 if (!rdev->ops->set_power_mgmt)
1112 return -EOPNOTSUPP;
1113
1114 if (wrq->disabled) {
1115 ps = false;
1116 } else {
1117 switch (wrq->flags & IW_POWER_MODE) {
1118 case IW_POWER_ON: /* If not specified */
1119 case IW_POWER_MODE: /* If set all mask */
1120 case IW_POWER_ALL_R: /* If explicitely state all */
1121 ps = true;
1122 break;
1123 default: /* Otherwise we ignore */
1124 return -EINVAL;
1125 }
1126
1127 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1128 return -EINVAL;
1129
1130 if (wrq->flags & IW_POWER_TIMEOUT)
1131 timeout = wrq->value / 1000;
1132 }
1133
1134 err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1135 if (err)
1136 return err;
1137
1138 wdev->ps = ps;
1139 wdev->ps_timeout = timeout;
1140
1141 return 0;
1142
1143 }
1144
1145 static int cfg80211_wext_giwpower(struct net_device *dev,
1146 struct iw_request_info *info,
1147 struct iw_param *wrq, char *extra)
1148 {
1149 struct wireless_dev *wdev = dev->ieee80211_ptr;
1150
1151 wrq->disabled = !wdev->ps;
1152
1153 return 0;
1154 }
1155
1156 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1157 struct iw_request_info *info,
1158 struct sockaddr *addr, char *extra)
1159 {
1160 struct wireless_dev *wdev = dev->ieee80211_ptr;
1161 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1162 int err;
1163
1164 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1165 return -EINVAL;
1166
1167 if (addr->sa_family != ARPHRD_ETHER)
1168 return -EINVAL;
1169
1170 if (netif_running(dev))
1171 return -EBUSY;
1172
1173 if (!rdev->ops->set_wds_peer)
1174 return -EOPNOTSUPP;
1175
1176 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1177 if (err)
1178 return err;
1179
1180 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1181
1182 return 0;
1183 }
1184
1185 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1186 struct iw_request_info *info,
1187 struct sockaddr *addr, char *extra)
1188 {
1189 struct wireless_dev *wdev = dev->ieee80211_ptr;
1190
1191 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1192 return -EINVAL;
1193
1194 addr->sa_family = ARPHRD_ETHER;
1195 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1196
1197 return 0;
1198 }
1199
1200 static int cfg80211_wext_siwrate(struct net_device *dev,
1201 struct iw_request_info *info,
1202 struct iw_param *rate, char *extra)
1203 {
1204 struct wireless_dev *wdev = dev->ieee80211_ptr;
1205 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1206 struct cfg80211_bitrate_mask mask;
1207 u32 fixed, maxrate;
1208 struct ieee80211_supported_band *sband;
1209 int band, ridx;
1210 bool match = false;
1211
1212 if (!rdev->ops->set_bitrate_mask)
1213 return -EOPNOTSUPP;
1214
1215 memset(&mask, 0, sizeof(mask));
1216 fixed = 0;
1217 maxrate = (u32)-1;
1218
1219 if (rate->value < 0) {
1220 /* nothing */
1221 } else if (rate->fixed) {
1222 fixed = rate->value / 100000;
1223 } else {
1224 maxrate = rate->value / 100000;
1225 }
1226
1227 for (band = 0; band < NUM_NL80211_BANDS; band++) {
1228 sband = wdev->wiphy->bands[band];
1229 if (sband == NULL)
1230 continue;
1231 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1232 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1233 if (fixed == srate->bitrate) {
1234 mask.control[band].legacy = 1 << ridx;
1235 match = true;
1236 break;
1237 }
1238 if (srate->bitrate <= maxrate) {
1239 mask.control[band].legacy |= 1 << ridx;
1240 match = true;
1241 }
1242 }
1243 }
1244
1245 if (!match)
1246 return -EINVAL;
1247
1248 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1249 }
1250
1251 static int cfg80211_wext_giwrate(struct net_device *dev,
1252 struct iw_request_info *info,
1253 struct iw_param *rate, char *extra)
1254 {
1255 struct wireless_dev *wdev = dev->ieee80211_ptr;
1256 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1257 /* we are under RTNL - globally locked - so can use a static struct */
1258 static struct station_info sinfo;
1259 u8 addr[ETH_ALEN];
1260 int err;
1261
1262 if (wdev->iftype != NL80211_IFTYPE_STATION)
1263 return -EOPNOTSUPP;
1264
1265 if (!rdev->ops->get_station)
1266 return -EOPNOTSUPP;
1267
1268 err = 0;
1269 wdev_lock(wdev);
1270 if (wdev->current_bss)
1271 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1272 else
1273 err = -EOPNOTSUPP;
1274 wdev_unlock(wdev);
1275 if (err)
1276 return err;
1277
1278 err = rdev_get_station(rdev, dev, addr, &sinfo);
1279 if (err)
1280 return err;
1281
1282 if (!(sinfo.filled & BIT(NL80211_STA_INFO_TX_BITRATE)))
1283 return -EOPNOTSUPP;
1284
1285 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1286
1287 return 0;
1288 }
1289
1290 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1291 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1292 {
1293 struct wireless_dev *wdev = dev->ieee80211_ptr;
1294 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1295 /* we are under RTNL - globally locked - so can use static structs */
1296 static struct iw_statistics wstats;
1297 static struct station_info sinfo;
1298 u8 bssid[ETH_ALEN];
1299
1300 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1301 return NULL;
1302
1303 if (!rdev->ops->get_station)
1304 return NULL;
1305
1306 /* Grab BSSID of current BSS, if any */
1307 wdev_lock(wdev);
1308 if (!wdev->current_bss) {
1309 wdev_unlock(wdev);
1310 return NULL;
1311 }
1312 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1313 wdev_unlock(wdev);
1314
1315 memset(&sinfo, 0, sizeof(sinfo));
1316
1317 if (rdev_get_station(rdev, dev, bssid, &sinfo))
1318 return NULL;
1319
1320 memset(&wstats, 0, sizeof(wstats));
1321
1322 switch (rdev->wiphy.signal_type) {
1323 case CFG80211_SIGNAL_TYPE_MBM:
1324 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1325 int sig = sinfo.signal;
1326 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1327 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1328 wstats.qual.updated |= IW_QUAL_DBM;
1329 wstats.qual.level = sig;
1330 if (sig < -110)
1331 sig = -110;
1332 else if (sig > -40)
1333 sig = -40;
1334 wstats.qual.qual = sig + 110;
1335 break;
1336 }
1337 case CFG80211_SIGNAL_TYPE_UNSPEC:
1338 if (sinfo.filled & BIT(NL80211_STA_INFO_SIGNAL)) {
1339 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1340 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1341 wstats.qual.level = sinfo.signal;
1342 wstats.qual.qual = sinfo.signal;
1343 break;
1344 }
1345 default:
1346 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1347 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1348 }
1349
1350 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1351 if (sinfo.filled & BIT(NL80211_STA_INFO_RX_DROP_MISC))
1352 wstats.discard.misc = sinfo.rx_dropped_misc;
1353 if (sinfo.filled & BIT(NL80211_STA_INFO_TX_FAILED))
1354 wstats.discard.retries = sinfo.tx_failed;
1355
1356 return &wstats;
1357 }
1358
1359 static int cfg80211_wext_siwap(struct net_device *dev,
1360 struct iw_request_info *info,
1361 struct sockaddr *ap_addr, char *extra)
1362 {
1363 struct wireless_dev *wdev = dev->ieee80211_ptr;
1364
1365 switch (wdev->iftype) {
1366 case NL80211_IFTYPE_ADHOC:
1367 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1368 case NL80211_IFTYPE_STATION:
1369 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1370 case NL80211_IFTYPE_WDS:
1371 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1372 default:
1373 return -EOPNOTSUPP;
1374 }
1375 }
1376
1377 static int cfg80211_wext_giwap(struct net_device *dev,
1378 struct iw_request_info *info,
1379 struct sockaddr *ap_addr, char *extra)
1380 {
1381 struct wireless_dev *wdev = dev->ieee80211_ptr;
1382
1383 switch (wdev->iftype) {
1384 case NL80211_IFTYPE_ADHOC:
1385 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1386 case NL80211_IFTYPE_STATION:
1387 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1388 case NL80211_IFTYPE_WDS:
1389 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1390 default:
1391 return -EOPNOTSUPP;
1392 }
1393 }
1394
1395 static int cfg80211_wext_siwessid(struct net_device *dev,
1396 struct iw_request_info *info,
1397 struct iw_point *data, char *ssid)
1398 {
1399 struct wireless_dev *wdev = dev->ieee80211_ptr;
1400
1401 switch (wdev->iftype) {
1402 case NL80211_IFTYPE_ADHOC:
1403 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1404 case NL80211_IFTYPE_STATION:
1405 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1406 default:
1407 return -EOPNOTSUPP;
1408 }
1409 }
1410
1411 static int cfg80211_wext_giwessid(struct net_device *dev,
1412 struct iw_request_info *info,
1413 struct iw_point *data, char *ssid)
1414 {
1415 struct wireless_dev *wdev = dev->ieee80211_ptr;
1416
1417 data->flags = 0;
1418 data->length = 0;
1419
1420 switch (wdev->iftype) {
1421 case NL80211_IFTYPE_ADHOC:
1422 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1423 case NL80211_IFTYPE_STATION:
1424 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1425 default:
1426 return -EOPNOTSUPP;
1427 }
1428 }
1429
1430 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1431 struct iw_request_info *info,
1432 struct iw_point *data, char *extra)
1433 {
1434 struct wireless_dev *wdev = dev->ieee80211_ptr;
1435 struct cfg80211_registered_device *rdev = wiphy_to_rdev(wdev->wiphy);
1436 struct cfg80211_pmksa cfg_pmksa;
1437 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1438
1439 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1440
1441 if (wdev->iftype != NL80211_IFTYPE_STATION)
1442 return -EINVAL;
1443
1444 cfg_pmksa.bssid = pmksa->bssid.sa_data;
1445 cfg_pmksa.pmkid = pmksa->pmkid;
1446
1447 switch (pmksa->cmd) {
1448 case IW_PMKSA_ADD:
1449 if (!rdev->ops->set_pmksa)
1450 return -EOPNOTSUPP;
1451
1452 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1453
1454 case IW_PMKSA_REMOVE:
1455 if (!rdev->ops->del_pmksa)
1456 return -EOPNOTSUPP;
1457
1458 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1459
1460 case IW_PMKSA_FLUSH:
1461 if (!rdev->ops->flush_pmksa)
1462 return -EOPNOTSUPP;
1463
1464 return rdev_flush_pmksa(rdev, dev);
1465
1466 default:
1467 return -EOPNOTSUPP;
1468 }
1469 }
1470
1471 static const iw_handler cfg80211_handlers[] = {
1472 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
1473 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
1474 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
1475 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
1476 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
1477 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
1478 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
1479 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
1480 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
1481 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
1482 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
1483 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
1484 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
1485 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
1486 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
1487 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
1488 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
1489 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
1490 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
1491 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
1492 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
1493 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
1494 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
1495 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
1496 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
1497 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
1498 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
1499 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
1500 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
1501 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
1502 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1503 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
1504 };
1505
1506 const struct iw_handler_def cfg80211_wext_handler = {
1507 .num_standard = ARRAY_SIZE(cfg80211_handlers),
1508 .standard = cfg80211_handlers,
1509 .get_wireless_stats = cfg80211_wireless_stats,
1510 };
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