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mqueue: sys_mq_open: do not call mnt_drop_write() if read-only
[linux-2.6/cjktty.git] / net / wireless / wext-compat.c
blobd997d0f0c54a683fb0aee287d44fc79d4b15230d
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_SYMBOL_GPL(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 int ret;
76
77 rdev = wiphy_to_dev(wdev->wiphy);
78
79 switch (*mode) {
80 case IW_MODE_INFRA:
81 type = NL80211_IFTYPE_STATION;
82 break;
83 case IW_MODE_ADHOC:
84 type = NL80211_IFTYPE_ADHOC;
85 break;
86 case IW_MODE_REPEAT:
87 type = NL80211_IFTYPE_WDS;
88 break;
89 case IW_MODE_MONITOR:
90 type = NL80211_IFTYPE_MONITOR;
91 break;
92 default:
93 return -EINVAL;
94 }
95
96 if (type == wdev->iftype)
97 return 0;
98
99 memset(&vifparams, 0, sizeof(vifparams));
100
101 cfg80211_lock_rdev(rdev);
102 ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
103 cfg80211_unlock_rdev(rdev);
104
105 return ret;
106 }
107 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
108
109 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
110 u32 *mode, char *extra)
111 {
112 struct wireless_dev *wdev = dev->ieee80211_ptr;
113
114 if (!wdev)
115 return -EOPNOTSUPP;
116
117 switch (wdev->iftype) {
118 case NL80211_IFTYPE_AP:
119 *mode = IW_MODE_MASTER;
120 break;
121 case NL80211_IFTYPE_STATION:
122 *mode = IW_MODE_INFRA;
123 break;
124 case NL80211_IFTYPE_ADHOC:
125 *mode = IW_MODE_ADHOC;
126 break;
127 case NL80211_IFTYPE_MONITOR:
128 *mode = IW_MODE_MONITOR;
129 break;
130 case NL80211_IFTYPE_WDS:
131 *mode = IW_MODE_REPEAT;
132 break;
133 case NL80211_IFTYPE_AP_VLAN:
134 *mode = IW_MODE_SECOND; /* FIXME */
135 break;
136 default:
137 *mode = IW_MODE_AUTO;
138 break;
139 }
140 return 0;
141 }
142 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
143
144
145 int cfg80211_wext_giwrange(struct net_device *dev,
146 struct iw_request_info *info,
147 struct iw_point *data, char *extra)
148 {
149 struct wireless_dev *wdev = dev->ieee80211_ptr;
150 struct iw_range *range = (struct iw_range *) extra;
151 enum ieee80211_band band;
152 int i, c = 0;
153
154 if (!wdev)
155 return -EOPNOTSUPP;
156
157 data->length = sizeof(struct iw_range);
158 memset(range, 0, sizeof(struct iw_range));
159
160 range->we_version_compiled = WIRELESS_EXT;
161 range->we_version_source = 21;
162 range->retry_capa = IW_RETRY_LIMIT;
163 range->retry_flags = IW_RETRY_LIMIT;
164 range->min_retry = 0;
165 range->max_retry = 255;
166 range->min_rts = 0;
167 range->max_rts = 2347;
168 range->min_frag = 256;
169 range->max_frag = 2346;
170
171 range->max_encoding_tokens = 4;
172
173 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
174
175 switch (wdev->wiphy->signal_type) {
176 case CFG80211_SIGNAL_TYPE_NONE:
177 break;
178 case CFG80211_SIGNAL_TYPE_MBM:
179 range->max_qual.level = (u8)-110;
180 range->max_qual.qual = 70;
181 range->avg_qual.qual = 35;
182 range->max_qual.updated |= IW_QUAL_DBM;
183 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
184 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
185 break;
186 case CFG80211_SIGNAL_TYPE_UNSPEC:
187 range->max_qual.level = 100;
188 range->max_qual.qual = 100;
189 range->avg_qual.qual = 50;
190 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
191 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
192 break;
193 }
194
195 range->avg_qual.level = range->max_qual.level / 2;
196 range->avg_qual.noise = range->max_qual.noise / 2;
197 range->avg_qual.updated = range->max_qual.updated;
198
199 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
200 switch (wdev->wiphy->cipher_suites[i]) {
201 case WLAN_CIPHER_SUITE_TKIP:
202 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
203 IW_ENC_CAPA_WPA);
204 break;
205
206 case WLAN_CIPHER_SUITE_CCMP:
207 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
208 IW_ENC_CAPA_WPA2);
209 break;
210
211 case WLAN_CIPHER_SUITE_WEP40:
212 range->encoding_size[range->num_encoding_sizes++] =
213 WLAN_KEY_LEN_WEP40;
214 break;
215
216 case WLAN_CIPHER_SUITE_WEP104:
217 range->encoding_size[range->num_encoding_sizes++] =
218 WLAN_KEY_LEN_WEP104;
219 break;
220 }
221 }
222
223 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
224 struct ieee80211_supported_band *sband;
225
226 sband = wdev->wiphy->bands[band];
227
228 if (!sband)
229 continue;
230
231 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
232 struct ieee80211_channel *chan = &sband->channels[i];
233
234 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
235 range->freq[c].i =
236 ieee80211_frequency_to_channel(
237 chan->center_freq);
238 range->freq[c].m = chan->center_freq;
239 range->freq[c].e = 6;
240 c++;
241 }
242 }
243 }
244 range->num_channels = c;
245 range->num_frequency = c;
246
247 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
248 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
249 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
250
251 if (wdev->wiphy->max_scan_ssids > 0)
252 range->scan_capa |= IW_SCAN_CAPA_ESSID;
253
254 return 0;
255 }
256 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
257
258
259 /**
260 * cfg80211_wext_freq - get wext frequency for non-"auto"
261 * @wiphy: the wiphy
262 * @freq: the wext freq encoding
263 *
264 * Returns a frequency, or a negative error code, or 0 for auto.
265 */
266 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
267 {
268 /*
269 * Parse frequency - return 0 for auto and
270 * -EINVAL for impossible things.
271 */
272 if (freq->e == 0) {
273 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
274 if (freq->m < 0)
275 return 0;
276 if (freq->m > 14)
277 band = IEEE80211_BAND_5GHZ;
278 return ieee80211_channel_to_frequency(freq->m, band);
279 } else {
280 int i, div = 1000000;
281 for (i = 0; i < freq->e; i++)
282 div /= 10;
283 if (div <= 0)
284 return -EINVAL;
285 return freq->m / div;
286 }
287 }
288
289 int cfg80211_wext_siwrts(struct net_device *dev,
290 struct iw_request_info *info,
291 struct iw_param *rts, char *extra)
292 {
293 struct wireless_dev *wdev = dev->ieee80211_ptr;
294 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
295 u32 orts = wdev->wiphy->rts_threshold;
296 int err;
297
298 if (rts->disabled || !rts->fixed)
299 wdev->wiphy->rts_threshold = (u32) -1;
300 else if (rts->value < 0)
301 return -EINVAL;
302 else
303 wdev->wiphy->rts_threshold = rts->value;
304
305 err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
306 if (err)
307 wdev->wiphy->rts_threshold = orts;
308
309 return err;
310 }
311 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
312
313 int cfg80211_wext_giwrts(struct net_device *dev,
314 struct iw_request_info *info,
315 struct iw_param *rts, char *extra)
316 {
317 struct wireless_dev *wdev = dev->ieee80211_ptr;
318
319 rts->value = wdev->wiphy->rts_threshold;
320 rts->disabled = rts->value == (u32) -1;
321 rts->fixed = 1;
322
323 return 0;
324 }
325 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
326
327 int cfg80211_wext_siwfrag(struct net_device *dev,
328 struct iw_request_info *info,
329 struct iw_param *frag, char *extra)
330 {
331 struct wireless_dev *wdev = dev->ieee80211_ptr;
332 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
333 u32 ofrag = wdev->wiphy->frag_threshold;
334 int err;
335
336 if (frag->disabled || !frag->fixed)
337 wdev->wiphy->frag_threshold = (u32) -1;
338 else if (frag->value < 256)
339 return -EINVAL;
340 else {
341 /* Fragment length must be even, so strip LSB. */
342 wdev->wiphy->frag_threshold = frag->value & ~0x1;
343 }
344
345 err = rdev_set_wiphy_params(rdev, 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_set_wiphy_params(rdev, 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_del_key(rdev, dev, idx, pairwise,
493 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_add_key(rdev, dev, idx, pairwise, addr, params);
528 if (err)
529 return err;
530
531 if (!addr) {
532 wdev->wext.keys->params[idx] = *params;
533 memcpy(wdev->wext.keys->data[idx],
534 params->key, params->key_len);
535 wdev->wext.keys->params[idx].key =
536 wdev->wext.keys->data[idx];
537 }
538
539 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
540 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
541 (tx_key || (!addr && wdev->wext.default_key == -1))) {
542 if (wdev->current_bss) {
543 /*
544 * If we are getting a new TX key from not having
545 * had one before we need to join a new IBSS with
546 * the privacy bit set.
547 */
548 if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
549 wdev->wext.default_key == -1) {
550 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
551 rejoin = true;
552 }
553 err = rdev_set_default_key(rdev, dev, idx, true, true);
554 }
555 if (!err) {
556 wdev->wext.default_key = idx;
557 if (rejoin)
558 err = cfg80211_ibss_wext_join(rdev, wdev);
559 }
560 return err;
561 }
562
563 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
564 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
565 if (wdev->current_bss)
566 err = rdev_set_default_mgmt_key(rdev, dev, idx);
567 if (!err)
568 wdev->wext.default_mgmt_key = idx;
569 return err;
570 }
571
572 return 0;
573 }
574
575 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
576 struct net_device *dev, bool pairwise,
577 const u8 *addr, bool remove, bool tx_key,
578 int idx, struct key_params *params)
579 {
580 int err;
581
582 /* devlist mutex needed for possible IBSS re-join */
583 mutex_lock(&rdev->devlist_mtx);
584 wdev_lock(dev->ieee80211_ptr);
585 err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
586 remove, tx_key, idx, params);
587 wdev_unlock(dev->ieee80211_ptr);
588 mutex_unlock(&rdev->devlist_mtx);
589
590 return err;
591 }
592
593 static int cfg80211_wext_siwencode(struct net_device *dev,
594 struct iw_request_info *info,
595 struct iw_point *erq, char *keybuf)
596 {
597 struct wireless_dev *wdev = dev->ieee80211_ptr;
598 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
599 int idx, err;
600 bool remove = false;
601 struct key_params params;
602
603 if (wdev->iftype != NL80211_IFTYPE_STATION &&
604 wdev->iftype != NL80211_IFTYPE_ADHOC)
605 return -EOPNOTSUPP;
606
607 /* no use -- only MFP (set_default_mgmt_key) is optional */
608 if (!rdev->ops->del_key ||
609 !rdev->ops->add_key ||
610 !rdev->ops->set_default_key)
611 return -EOPNOTSUPP;
612
613 idx = erq->flags & IW_ENCODE_INDEX;
614 if (idx == 0) {
615 idx = wdev->wext.default_key;
616 if (idx < 0)
617 idx = 0;
618 } else if (idx < 1 || idx > 4)
619 return -EINVAL;
620 else
621 idx--;
622
623 if (erq->flags & IW_ENCODE_DISABLED)
624 remove = true;
625 else if (erq->length == 0) {
626 /* No key data - just set the default TX key index */
627 err = 0;
628 wdev_lock(wdev);
629 if (wdev->current_bss)
630 err = rdev_set_default_key(rdev, dev, idx, true,
631 true);
632 if (!err)
633 wdev->wext.default_key = idx;
634 wdev_unlock(wdev);
635 return err;
636 }
637
638 memset(&params, 0, sizeof(params));
639 params.key = keybuf;
640 params.key_len = erq->length;
641 if (erq->length == 5)
642 params.cipher = WLAN_CIPHER_SUITE_WEP40;
643 else if (erq->length == 13)
644 params.cipher = WLAN_CIPHER_SUITE_WEP104;
645 else if (!remove)
646 return -EINVAL;
647
648 return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
649 wdev->wext.default_key == -1,
650 idx, &params);
651 }
652
653 static int cfg80211_wext_siwencodeext(struct net_device *dev,
654 struct iw_request_info *info,
655 struct iw_point *erq, char *extra)
656 {
657 struct wireless_dev *wdev = dev->ieee80211_ptr;
658 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
659 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
660 const u8 *addr;
661 int idx;
662 bool remove = false;
663 struct key_params params;
664 u32 cipher;
665
666 if (wdev->iftype != NL80211_IFTYPE_STATION &&
667 wdev->iftype != NL80211_IFTYPE_ADHOC)
668 return -EOPNOTSUPP;
669
670 /* no use -- only MFP (set_default_mgmt_key) is optional */
671 if (!rdev->ops->del_key ||
672 !rdev->ops->add_key ||
673 !rdev->ops->set_default_key)
674 return -EOPNOTSUPP;
675
676 switch (ext->alg) {
677 case IW_ENCODE_ALG_NONE:
678 remove = true;
679 cipher = 0;
680 break;
681 case IW_ENCODE_ALG_WEP:
682 if (ext->key_len == 5)
683 cipher = WLAN_CIPHER_SUITE_WEP40;
684 else if (ext->key_len == 13)
685 cipher = WLAN_CIPHER_SUITE_WEP104;
686 else
687 return -EINVAL;
688 break;
689 case IW_ENCODE_ALG_TKIP:
690 cipher = WLAN_CIPHER_SUITE_TKIP;
691 break;
692 case IW_ENCODE_ALG_CCMP:
693 cipher = WLAN_CIPHER_SUITE_CCMP;
694 break;
695 case IW_ENCODE_ALG_AES_CMAC:
696 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
697 break;
698 default:
699 return -EOPNOTSUPP;
700 }
701
702 if (erq->flags & IW_ENCODE_DISABLED)
703 remove = true;
704
705 idx = erq->flags & IW_ENCODE_INDEX;
706 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
707 if (idx < 4 || idx > 5) {
708 idx = wdev->wext.default_mgmt_key;
709 if (idx < 0)
710 return -EINVAL;
711 } else
712 idx--;
713 } else {
714 if (idx < 1 || idx > 4) {
715 idx = wdev->wext.default_key;
716 if (idx < 0)
717 return -EINVAL;
718 } else
719 idx--;
720 }
721
722 addr = ext->addr.sa_data;
723 if (is_broadcast_ether_addr(addr))
724 addr = NULL;
725
726 memset(&params, 0, sizeof(params));
727 params.key = ext->key;
728 params.key_len = ext->key_len;
729 params.cipher = cipher;
730
731 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
732 params.seq = ext->rx_seq;
733 params.seq_len = 6;
734 }
735
736 return cfg80211_set_encryption(
737 rdev, dev,
738 !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
739 addr, remove,
740 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
741 idx, &params);
742 }
743
744 static int cfg80211_wext_giwencode(struct net_device *dev,
745 struct iw_request_info *info,
746 struct iw_point *erq, char *keybuf)
747 {
748 struct wireless_dev *wdev = dev->ieee80211_ptr;
749 int idx;
750
751 if (wdev->iftype != NL80211_IFTYPE_STATION &&
752 wdev->iftype != NL80211_IFTYPE_ADHOC)
753 return -EOPNOTSUPP;
754
755 idx = erq->flags & IW_ENCODE_INDEX;
756 if (idx == 0) {
757 idx = wdev->wext.default_key;
758 if (idx < 0)
759 idx = 0;
760 } else if (idx < 1 || idx > 4)
761 return -EINVAL;
762 else
763 idx--;
764
765 erq->flags = idx + 1;
766
767 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
768 erq->flags |= IW_ENCODE_DISABLED;
769 erq->length = 0;
770 return 0;
771 }
772
773 erq->length = min_t(size_t, erq->length,
774 wdev->wext.keys->params[idx].key_len);
775 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
776 erq->flags |= IW_ENCODE_ENABLED;
777
778 return 0;
779 }
780
781 static int cfg80211_wext_siwfreq(struct net_device *dev,
782 struct iw_request_info *info,
783 struct iw_freq *wextfreq, char *extra)
784 {
785 struct wireless_dev *wdev = dev->ieee80211_ptr;
786 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
787 struct cfg80211_chan_def chandef = {
788 .width = NL80211_CHAN_WIDTH_20_NOHT,
789 };
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 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
799 if (freq < 0)
800 return freq;
801 if (freq == 0)
802 return -EINVAL;
803 chandef.center_freq1 = freq;
804 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
805 if (!chandef.chan)
806 return -EINVAL;
807 mutex_lock(&rdev->devlist_mtx);
808 err = cfg80211_set_monitor_channel(rdev, &chandef);
809 mutex_unlock(&rdev->devlist_mtx);
810 return err;
811 case NL80211_IFTYPE_MESH_POINT:
812 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
813 if (freq < 0)
814 return freq;
815 if (freq == 0)
816 return -EINVAL;
817 chandef.center_freq1 = freq;
818 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
819 if (!chandef.chan)
820 return -EINVAL;
821 mutex_lock(&rdev->devlist_mtx);
822 err = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
823 mutex_unlock(&rdev->devlist_mtx);
824 return err;
825 default:
826 return -EOPNOTSUPP;
827 }
828 }
829
830 static int cfg80211_wext_giwfreq(struct net_device *dev,
831 struct iw_request_info *info,
832 struct iw_freq *freq, char *extra)
833 {
834 struct wireless_dev *wdev = dev->ieee80211_ptr;
835 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
836 struct cfg80211_chan_def chandef;
837 int ret;
838
839 switch (wdev->iftype) {
840 case NL80211_IFTYPE_STATION:
841 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
842 case NL80211_IFTYPE_ADHOC:
843 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
844 case NL80211_IFTYPE_MONITOR:
845 if (!rdev->ops->get_channel)
846 return -EINVAL;
847
848 ret = rdev_get_channel(rdev, wdev, &chandef);
849 if (ret)
850 return ret;
851 freq->m = chandef.chan->center_freq;
852 freq->e = 6;
853 return 0;
854 default:
855 return -EINVAL;
856 }
857 }
858
859 static int cfg80211_wext_siwtxpower(struct net_device *dev,
860 struct iw_request_info *info,
861 union iwreq_data *data, char *extra)
862 {
863 struct wireless_dev *wdev = dev->ieee80211_ptr;
864 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
865 enum nl80211_tx_power_setting type;
866 int dbm = 0;
867
868 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
869 return -EINVAL;
870 if (data->txpower.flags & IW_TXPOW_RANGE)
871 return -EINVAL;
872
873 if (!rdev->ops->set_tx_power)
874 return -EOPNOTSUPP;
875
876 /* only change when not disabling */
877 if (!data->txpower.disabled) {
878 rfkill_set_sw_state(rdev->rfkill, false);
879
880 if (data->txpower.fixed) {
881 /*
882 * wext doesn't support negative values, see
883 * below where it's for automatic
884 */
885 if (data->txpower.value < 0)
886 return -EINVAL;
887 dbm = data->txpower.value;
888 type = NL80211_TX_POWER_FIXED;
889 /* TODO: do regulatory check! */
890 } else {
891 /*
892 * Automatic power level setting, max being the value
893 * passed in from userland.
894 */
895 if (data->txpower.value < 0) {
896 type = NL80211_TX_POWER_AUTOMATIC;
897 } else {
898 dbm = data->txpower.value;
899 type = NL80211_TX_POWER_LIMITED;
900 }
901 }
902 } else {
903 rfkill_set_sw_state(rdev->rfkill, true);
904 schedule_work(&rdev->rfkill_sync);
905 return 0;
906 }
907
908 return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
909 }
910
911 static int cfg80211_wext_giwtxpower(struct net_device *dev,
912 struct iw_request_info *info,
913 union iwreq_data *data, char *extra)
914 {
915 struct wireless_dev *wdev = dev->ieee80211_ptr;
916 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
917 int err, val;
918
919 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
920 return -EINVAL;
921 if (data->txpower.flags & IW_TXPOW_RANGE)
922 return -EINVAL;
923
924 if (!rdev->ops->get_tx_power)
925 return -EOPNOTSUPP;
926
927 err = rdev_get_tx_power(rdev, wdev, &val);
928 if (err)
929 return err;
930
931 /* well... oh well */
932 data->txpower.fixed = 1;
933 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
934 data->txpower.value = val;
935 data->txpower.flags = IW_TXPOW_DBM;
936
937 return 0;
938 }
939
940 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
941 s32 auth_alg)
942 {
943 int nr_alg = 0;
944
945 if (!auth_alg)
946 return -EINVAL;
947
948 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
949 IW_AUTH_ALG_SHARED_KEY |
950 IW_AUTH_ALG_LEAP))
951 return -EINVAL;
952
953 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
954 nr_alg++;
955 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
956 }
957
958 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
959 nr_alg++;
960 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
961 }
962
963 if (auth_alg & IW_AUTH_ALG_LEAP) {
964 nr_alg++;
965 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
966 }
967
968 if (nr_alg > 1)
969 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
970
971 return 0;
972 }
973
974 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
975 {
976 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
977 IW_AUTH_WPA_VERSION_WPA2|
978 IW_AUTH_WPA_VERSION_DISABLED))
979 return -EINVAL;
980
981 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
982 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
983 IW_AUTH_WPA_VERSION_WPA2)))
984 return -EINVAL;
985
986 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
987 wdev->wext.connect.crypto.wpa_versions &=
988 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
989
990 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
991 wdev->wext.connect.crypto.wpa_versions |=
992 NL80211_WPA_VERSION_1;
993
994 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
995 wdev->wext.connect.crypto.wpa_versions |=
996 NL80211_WPA_VERSION_2;
997
998 return 0;
999 }
1000
1001 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
1002 {
1003 if (cipher & IW_AUTH_CIPHER_WEP40)
1004 wdev->wext.connect.crypto.cipher_group =
1005 WLAN_CIPHER_SUITE_WEP40;
1006 else if (cipher & IW_AUTH_CIPHER_WEP104)
1007 wdev->wext.connect.crypto.cipher_group =
1008 WLAN_CIPHER_SUITE_WEP104;
1009 else if (cipher & IW_AUTH_CIPHER_TKIP)
1010 wdev->wext.connect.crypto.cipher_group =
1011 WLAN_CIPHER_SUITE_TKIP;
1012 else if (cipher & IW_AUTH_CIPHER_CCMP)
1013 wdev->wext.connect.crypto.cipher_group =
1014 WLAN_CIPHER_SUITE_CCMP;
1015 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1016 wdev->wext.connect.crypto.cipher_group =
1017 WLAN_CIPHER_SUITE_AES_CMAC;
1018 else if (cipher & IW_AUTH_CIPHER_NONE)
1019 wdev->wext.connect.crypto.cipher_group = 0;
1020 else
1021 return -EINVAL;
1022
1023 return 0;
1024 }
1025
1026 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1027 {
1028 int nr_ciphers = 0;
1029 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1030
1031 if (cipher & IW_AUTH_CIPHER_WEP40) {
1032 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1033 nr_ciphers++;
1034 }
1035
1036 if (cipher & IW_AUTH_CIPHER_WEP104) {
1037 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1038 nr_ciphers++;
1039 }
1040
1041 if (cipher & IW_AUTH_CIPHER_TKIP) {
1042 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1043 nr_ciphers++;
1044 }
1045
1046 if (cipher & IW_AUTH_CIPHER_CCMP) {
1047 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1048 nr_ciphers++;
1049 }
1050
1051 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1052 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1053 nr_ciphers++;
1054 }
1055
1056 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1057
1058 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1059
1060 return 0;
1061 }
1062
1063
1064 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1065 {
1066 int nr_akm_suites = 0;
1067
1068 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1069 IW_AUTH_KEY_MGMT_PSK))
1070 return -EINVAL;
1071
1072 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1073 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1074 WLAN_AKM_SUITE_8021X;
1075 nr_akm_suites++;
1076 }
1077
1078 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1079 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1080 WLAN_AKM_SUITE_PSK;
1081 nr_akm_suites++;
1082 }
1083
1084 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1085
1086 return 0;
1087 }
1088
1089 static int cfg80211_wext_siwauth(struct net_device *dev,
1090 struct iw_request_info *info,
1091 struct iw_param *data, char *extra)
1092 {
1093 struct wireless_dev *wdev = dev->ieee80211_ptr;
1094
1095 if (wdev->iftype != NL80211_IFTYPE_STATION)
1096 return -EOPNOTSUPP;
1097
1098 switch (data->flags & IW_AUTH_INDEX) {
1099 case IW_AUTH_PRIVACY_INVOKED:
1100 wdev->wext.connect.privacy = data->value;
1101 return 0;
1102 case IW_AUTH_WPA_VERSION:
1103 return cfg80211_set_wpa_version(wdev, data->value);
1104 case IW_AUTH_CIPHER_GROUP:
1105 return cfg80211_set_cipher_group(wdev, data->value);
1106 case IW_AUTH_KEY_MGMT:
1107 return cfg80211_set_key_mgt(wdev, data->value);
1108 case IW_AUTH_CIPHER_PAIRWISE:
1109 return cfg80211_set_cipher_pairwise(wdev, data->value);
1110 case IW_AUTH_80211_AUTH_ALG:
1111 return cfg80211_set_auth_alg(wdev, data->value);
1112 case IW_AUTH_WPA_ENABLED:
1113 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1114 case IW_AUTH_DROP_UNENCRYPTED:
1115 case IW_AUTH_MFP:
1116 return 0;
1117 default:
1118 return -EOPNOTSUPP;
1119 }
1120 }
1121
1122 static int cfg80211_wext_giwauth(struct net_device *dev,
1123 struct iw_request_info *info,
1124 struct iw_param *data, char *extra)
1125 {
1126 /* XXX: what do we need? */
1127
1128 return -EOPNOTSUPP;
1129 }
1130
1131 static int cfg80211_wext_siwpower(struct net_device *dev,
1132 struct iw_request_info *info,
1133 struct iw_param *wrq, char *extra)
1134 {
1135 struct wireless_dev *wdev = dev->ieee80211_ptr;
1136 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1137 bool ps = wdev->ps;
1138 int timeout = wdev->ps_timeout;
1139 int err;
1140
1141 if (wdev->iftype != NL80211_IFTYPE_STATION)
1142 return -EINVAL;
1143
1144 if (!rdev->ops->set_power_mgmt)
1145 return -EOPNOTSUPP;
1146
1147 if (wrq->disabled) {
1148 ps = false;
1149 } else {
1150 switch (wrq->flags & IW_POWER_MODE) {
1151 case IW_POWER_ON: /* If not specified */
1152 case IW_POWER_MODE: /* If set all mask */
1153 case IW_POWER_ALL_R: /* If explicitely state all */
1154 ps = true;
1155 break;
1156 default: /* Otherwise we ignore */
1157 return -EINVAL;
1158 }
1159
1160 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1161 return -EINVAL;
1162
1163 if (wrq->flags & IW_POWER_TIMEOUT)
1164 timeout = wrq->value / 1000;
1165 }
1166
1167 err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1168 if (err)
1169 return err;
1170
1171 wdev->ps = ps;
1172 wdev->ps_timeout = timeout;
1173
1174 return 0;
1175
1176 }
1177
1178 static int cfg80211_wext_giwpower(struct net_device *dev,
1179 struct iw_request_info *info,
1180 struct iw_param *wrq, char *extra)
1181 {
1182 struct wireless_dev *wdev = dev->ieee80211_ptr;
1183
1184 wrq->disabled = !wdev->ps;
1185
1186 return 0;
1187 }
1188
1189 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1190 struct iw_request_info *info,
1191 struct sockaddr *addr, char *extra)
1192 {
1193 struct wireless_dev *wdev = dev->ieee80211_ptr;
1194 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1195 int err;
1196
1197 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1198 return -EINVAL;
1199
1200 if (addr->sa_family != ARPHRD_ETHER)
1201 return -EINVAL;
1202
1203 if (netif_running(dev))
1204 return -EBUSY;
1205
1206 if (!rdev->ops->set_wds_peer)
1207 return -EOPNOTSUPP;
1208
1209 err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1210 if (err)
1211 return err;
1212
1213 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1214
1215 return 0;
1216 }
1217
1218 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1219 struct iw_request_info *info,
1220 struct sockaddr *addr, char *extra)
1221 {
1222 struct wireless_dev *wdev = dev->ieee80211_ptr;
1223
1224 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1225 return -EINVAL;
1226
1227 addr->sa_family = ARPHRD_ETHER;
1228 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1229
1230 return 0;
1231 }
1232
1233 static int cfg80211_wext_siwrate(struct net_device *dev,
1234 struct iw_request_info *info,
1235 struct iw_param *rate, char *extra)
1236 {
1237 struct wireless_dev *wdev = dev->ieee80211_ptr;
1238 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1239 struct cfg80211_bitrate_mask mask;
1240 u32 fixed, maxrate;
1241 struct ieee80211_supported_band *sband;
1242 int band, ridx;
1243 bool match = false;
1244
1245 if (!rdev->ops->set_bitrate_mask)
1246 return -EOPNOTSUPP;
1247
1248 memset(&mask, 0, sizeof(mask));
1249 fixed = 0;
1250 maxrate = (u32)-1;
1251
1252 if (rate->value < 0) {
1253 /* nothing */
1254 } else if (rate->fixed) {
1255 fixed = rate->value / 100000;
1256 } else {
1257 maxrate = rate->value / 100000;
1258 }
1259
1260 for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1261 sband = wdev->wiphy->bands[band];
1262 if (sband == NULL)
1263 continue;
1264 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1265 struct ieee80211_rate *srate = &sband->bitrates[ridx];
1266 if (fixed == srate->bitrate) {
1267 mask.control[band].legacy = 1 << ridx;
1268 match = true;
1269 break;
1270 }
1271 if (srate->bitrate <= maxrate) {
1272 mask.control[band].legacy |= 1 << ridx;
1273 match = true;
1274 }
1275 }
1276 }
1277
1278 if (!match)
1279 return -EINVAL;
1280
1281 return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1282 }
1283
1284 static int cfg80211_wext_giwrate(struct net_device *dev,
1285 struct iw_request_info *info,
1286 struct iw_param *rate, char *extra)
1287 {
1288 struct wireless_dev *wdev = dev->ieee80211_ptr;
1289 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1290 /* we are under RTNL - globally locked - so can use a static struct */
1291 static struct station_info sinfo;
1292 u8 addr[ETH_ALEN];
1293 int err;
1294
1295 if (wdev->iftype != NL80211_IFTYPE_STATION)
1296 return -EOPNOTSUPP;
1297
1298 if (!rdev->ops->get_station)
1299 return -EOPNOTSUPP;
1300
1301 err = 0;
1302 wdev_lock(wdev);
1303 if (wdev->current_bss)
1304 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1305 else
1306 err = -EOPNOTSUPP;
1307 wdev_unlock(wdev);
1308 if (err)
1309 return err;
1310
1311 err = rdev_get_station(rdev, dev, addr, &sinfo);
1312 if (err)
1313 return err;
1314
1315 if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1316 return -EOPNOTSUPP;
1317
1318 rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1319
1320 return 0;
1321 }
1322
1323 /* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1324 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1325 {
1326 struct wireless_dev *wdev = dev->ieee80211_ptr;
1327 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1328 /* we are under RTNL - globally locked - so can use static structs */
1329 static struct iw_statistics wstats;
1330 static struct station_info sinfo;
1331 u8 bssid[ETH_ALEN];
1332
1333 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1334 return NULL;
1335
1336 if (!rdev->ops->get_station)
1337 return NULL;
1338
1339 /* Grab BSSID of current BSS, if any */
1340 wdev_lock(wdev);
1341 if (!wdev->current_bss) {
1342 wdev_unlock(wdev);
1343 return NULL;
1344 }
1345 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1346 wdev_unlock(wdev);
1347
1348 if (rdev_get_station(rdev, dev, bssid, &sinfo))
1349 return NULL;
1350
1351 memset(&wstats, 0, sizeof(wstats));
1352
1353 switch (rdev->wiphy.signal_type) {
1354 case CFG80211_SIGNAL_TYPE_MBM:
1355 if (sinfo.filled & STATION_INFO_SIGNAL) {
1356 int sig = sinfo.signal;
1357 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1358 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1359 wstats.qual.updated |= IW_QUAL_DBM;
1360 wstats.qual.level = sig;
1361 if (sig < -110)
1362 sig = -110;
1363 else if (sig > -40)
1364 sig = -40;
1365 wstats.qual.qual = sig + 110;
1366 break;
1367 }
1368 case CFG80211_SIGNAL_TYPE_UNSPEC:
1369 if (sinfo.filled & STATION_INFO_SIGNAL) {
1370 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1371 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1372 wstats.qual.level = sinfo.signal;
1373 wstats.qual.qual = sinfo.signal;
1374 break;
1375 }
1376 default:
1377 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1378 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1379 }
1380
1381 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1382 if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1383 wstats.discard.misc = sinfo.rx_dropped_misc;
1384 if (sinfo.filled & STATION_INFO_TX_FAILED)
1385 wstats.discard.retries = sinfo.tx_failed;
1386
1387 return &wstats;
1388 }
1389
1390 static int cfg80211_wext_siwap(struct net_device *dev,
1391 struct iw_request_info *info,
1392 struct sockaddr *ap_addr, char *extra)
1393 {
1394 struct wireless_dev *wdev = dev->ieee80211_ptr;
1395
1396 switch (wdev->iftype) {
1397 case NL80211_IFTYPE_ADHOC:
1398 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1399 case NL80211_IFTYPE_STATION:
1400 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1401 case NL80211_IFTYPE_WDS:
1402 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1403 default:
1404 return -EOPNOTSUPP;
1405 }
1406 }
1407
1408 static int cfg80211_wext_giwap(struct net_device *dev,
1409 struct iw_request_info *info,
1410 struct sockaddr *ap_addr, char *extra)
1411 {
1412 struct wireless_dev *wdev = dev->ieee80211_ptr;
1413
1414 switch (wdev->iftype) {
1415 case NL80211_IFTYPE_ADHOC:
1416 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1417 case NL80211_IFTYPE_STATION:
1418 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1419 case NL80211_IFTYPE_WDS:
1420 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1421 default:
1422 return -EOPNOTSUPP;
1423 }
1424 }
1425
1426 static int cfg80211_wext_siwessid(struct net_device *dev,
1427 struct iw_request_info *info,
1428 struct iw_point *data, char *ssid)
1429 {
1430 struct wireless_dev *wdev = dev->ieee80211_ptr;
1431
1432 switch (wdev->iftype) {
1433 case NL80211_IFTYPE_ADHOC:
1434 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1435 case NL80211_IFTYPE_STATION:
1436 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1437 default:
1438 return -EOPNOTSUPP;
1439 }
1440 }
1441
1442 static int cfg80211_wext_giwessid(struct net_device *dev,
1443 struct iw_request_info *info,
1444 struct iw_point *data, char *ssid)
1445 {
1446 struct wireless_dev *wdev = dev->ieee80211_ptr;
1447
1448 data->flags = 0;
1449 data->length = 0;
1450
1451 switch (wdev->iftype) {
1452 case NL80211_IFTYPE_ADHOC:
1453 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1454 case NL80211_IFTYPE_STATION:
1455 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1456 default:
1457 return -EOPNOTSUPP;
1458 }
1459 }
1460
1461 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1462 struct iw_request_info *info,
1463 struct iw_point *data, char *extra)
1464 {
1465 struct wireless_dev *wdev = dev->ieee80211_ptr;
1466 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1467 struct cfg80211_pmksa cfg_pmksa;
1468 struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1469
1470 memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1471
1472 if (wdev->iftype != NL80211_IFTYPE_STATION)
1473 return -EINVAL;
1474
1475 cfg_pmksa.bssid = pmksa->bssid.sa_data;
1476 cfg_pmksa.pmkid = pmksa->pmkid;
1477
1478 switch (pmksa->cmd) {
1479 case IW_PMKSA_ADD:
1480 if (!rdev->ops->set_pmksa)
1481 return -EOPNOTSUPP;
1482
1483 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1484
1485 case IW_PMKSA_REMOVE:
1486 if (!rdev->ops->del_pmksa)
1487 return -EOPNOTSUPP;
1488
1489 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1490
1491 case IW_PMKSA_FLUSH:
1492 if (!rdev->ops->flush_pmksa)
1493 return -EOPNOTSUPP;
1494
1495 return rdev_flush_pmksa(rdev, dev);
1496
1497 default:
1498 return -EOPNOTSUPP;
1499 }
1500 }
1501
1502 static const iw_handler cfg80211_handlers[] = {
1503 [IW_IOCTL_IDX(SIOCGIWNAME)] = (iw_handler) cfg80211_wext_giwname,
1504 [IW_IOCTL_IDX(SIOCSIWFREQ)] = (iw_handler) cfg80211_wext_siwfreq,
1505 [IW_IOCTL_IDX(SIOCGIWFREQ)] = (iw_handler) cfg80211_wext_giwfreq,
1506 [IW_IOCTL_IDX(SIOCSIWMODE)] = (iw_handler) cfg80211_wext_siwmode,
1507 [IW_IOCTL_IDX(SIOCGIWMODE)] = (iw_handler) cfg80211_wext_giwmode,
1508 [IW_IOCTL_IDX(SIOCGIWRANGE)] = (iw_handler) cfg80211_wext_giwrange,
1509 [IW_IOCTL_IDX(SIOCSIWAP)] = (iw_handler) cfg80211_wext_siwap,
1510 [IW_IOCTL_IDX(SIOCGIWAP)] = (iw_handler) cfg80211_wext_giwap,
1511 [IW_IOCTL_IDX(SIOCSIWMLME)] = (iw_handler) cfg80211_wext_siwmlme,
1512 [IW_IOCTL_IDX(SIOCSIWSCAN)] = (iw_handler) cfg80211_wext_siwscan,
1513 [IW_IOCTL_IDX(SIOCGIWSCAN)] = (iw_handler) cfg80211_wext_giwscan,
1514 [IW_IOCTL_IDX(SIOCSIWESSID)] = (iw_handler) cfg80211_wext_siwessid,
1515 [IW_IOCTL_IDX(SIOCGIWESSID)] = (iw_handler) cfg80211_wext_giwessid,
1516 [IW_IOCTL_IDX(SIOCSIWRATE)] = (iw_handler) cfg80211_wext_siwrate,
1517 [IW_IOCTL_IDX(SIOCGIWRATE)] = (iw_handler) cfg80211_wext_giwrate,
1518 [IW_IOCTL_IDX(SIOCSIWRTS)] = (iw_handler) cfg80211_wext_siwrts,
1519 [IW_IOCTL_IDX(SIOCGIWRTS)] = (iw_handler) cfg80211_wext_giwrts,
1520 [IW_IOCTL_IDX(SIOCSIWFRAG)] = (iw_handler) cfg80211_wext_siwfrag,
1521 [IW_IOCTL_IDX(SIOCGIWFRAG)] = (iw_handler) cfg80211_wext_giwfrag,
1522 [IW_IOCTL_IDX(SIOCSIWTXPOW)] = (iw_handler) cfg80211_wext_siwtxpower,
1523 [IW_IOCTL_IDX(SIOCGIWTXPOW)] = (iw_handler) cfg80211_wext_giwtxpower,
1524 [IW_IOCTL_IDX(SIOCSIWRETRY)] = (iw_handler) cfg80211_wext_siwretry,
1525 [IW_IOCTL_IDX(SIOCGIWRETRY)] = (iw_handler) cfg80211_wext_giwretry,
1526 [IW_IOCTL_IDX(SIOCSIWENCODE)] = (iw_handler) cfg80211_wext_siwencode,
1527 [IW_IOCTL_IDX(SIOCGIWENCODE)] = (iw_handler) cfg80211_wext_giwencode,
1528 [IW_IOCTL_IDX(SIOCSIWPOWER)] = (iw_handler) cfg80211_wext_siwpower,
1529 [IW_IOCTL_IDX(SIOCGIWPOWER)] = (iw_handler) cfg80211_wext_giwpower,
1530 [IW_IOCTL_IDX(SIOCSIWGENIE)] = (iw_handler) cfg80211_wext_siwgenie,
1531 [IW_IOCTL_IDX(SIOCSIWAUTH)] = (iw_handler) cfg80211_wext_siwauth,
1532 [IW_IOCTL_IDX(SIOCGIWAUTH)] = (iw_handler) cfg80211_wext_giwauth,
1533 [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1534 [IW_IOCTL_IDX(SIOCSIWPMKSA)] = (iw_handler) cfg80211_wext_siwpmksa,
1535 };
1536
1537 const struct iw_handler_def cfg80211_wext_handler = {
1538 .num_standard = ARRAY_SIZE(cfg80211_handlers),
1539 .standard = cfg80211_handlers,
1540 .get_wireless_stats = cfg80211_wireless_stats,
1541 };
CJK support for tty framebuffer vt