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cfg80211: combine iwfreq implementations
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / wireless / wext-compat.c
CommitLineData
fee52678
JB		 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 *
08645126 8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
fee52678
JB		 9 */
10
11#include <linux/wireless.h>
12#include <linux/nl80211.h>
691597cb 13#include <linux/if_arp.h>
08645126 14#include <linux/etherdevice.h>
fee52678 15#include <net/iw_handler.h>
fee52678 16#include <net/cfg80211.h>
0e82ffe3 17#include "wext-compat.h"
fee52678
JB		 18#include "core.h"
19
20int cfg80211_wext_giwname(struct net_device *dev,
21 struct iw_request_info *info,
22 char *name, char *extra)
23{
24 struct wireless_dev *wdev = dev->ieee80211_ptr;
25 struct ieee80211_supported_band *sband;
26 bool is_ht = false, is_a = false, is_b = false, is_g = false;
27
28 if (!wdev)
29 return -EOPNOTSUPP;
30
31 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
32 if (sband) {
33 is_a = true;
34 is_ht |= sband->ht_cap.ht_supported;
35 }
36
37 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
38 if (sband) {
39 int i;
40 /* Check for mandatory rates */
41 for (i = 0; i < sband->n_bitrates; i++) {
42 if (sband->bitrates[i].bitrate == 10)
43 is_b = true;
44 if (sband->bitrates[i].bitrate == 60)
45 is_g = true;
46 }
47 is_ht |= sband->ht_cap.ht_supported;
48 }
49
50 strcpy(name, "IEEE 802.11");
51 if (is_a)
52 strcat(name, "a");
53 if (is_b)
54 strcat(name, "b");
55 if (is_g)
56 strcat(name, "g");
57 if (is_ht)
58 strcat(name, "n");
59
60 return 0;
61}
ba44cb72 62EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
e60c7744
JB		 63
64int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
65 u32 *mode, char *extra)
66{
67 struct wireless_dev *wdev = dev->ieee80211_ptr;
68 struct cfg80211_registered_device *rdev;
69 struct vif_params vifparams;
70 enum nl80211_iftype type;
ac7f9cfa 71 int ret;
e60c7744
JB		 72
73 if (!wdev)
74 return -EOPNOTSUPP;
75
76 rdev = wiphy_to_dev(wdev->wiphy);
77
78 if (!rdev->ops->change_virtual_intf)
79 return -EOPNOTSUPP;
80
81 /* don't support changing VLANs, you just re-create them */
82 if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
83 return -EOPNOTSUPP;
84
85 switch (*mode) {
86 case IW_MODE_INFRA:
87 type = NL80211_IFTYPE_STATION;
88 break;
89 case IW_MODE_ADHOC:
90 type = NL80211_IFTYPE_ADHOC;
91 break;
92 case IW_MODE_REPEAT:
93 type = NL80211_IFTYPE_WDS;
94 break;
95 case IW_MODE_MONITOR:
96 type = NL80211_IFTYPE_MONITOR;
97 break;
98 default:
99 return -EINVAL;
100 }
101
ac7f9cfa
JB		 102 if (type == wdev->iftype)
103 return 0;
104
e60c7744
JB		 105 memset(&vifparams, 0, sizeof(vifparams));
106
e36d56b6 107 ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
ac7f9cfa
JB		 108 NULL, &vifparams);
109 WARN_ON(!ret && wdev->iftype != type);
110
111 return ret;
e60c7744 112}
ba44cb72 113EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
e60c7744
JB		 114
115int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
116 u32 *mode, char *extra)
117{
118 struct wireless_dev *wdev = dev->ieee80211_ptr;
119
120 if (!wdev)
121 return -EOPNOTSUPP;
122
123 switch (wdev->iftype) {
124 case NL80211_IFTYPE_AP:
125 *mode = IW_MODE_MASTER;
126 break;
127 case NL80211_IFTYPE_STATION:
128 *mode = IW_MODE_INFRA;
129 break;
130 case NL80211_IFTYPE_ADHOC:
131 *mode = IW_MODE_ADHOC;
132 break;
133 case NL80211_IFTYPE_MONITOR:
134 *mode = IW_MODE_MONITOR;
135 break;
136 case NL80211_IFTYPE_WDS:
137 *mode = IW_MODE_REPEAT;
138 break;
139 case NL80211_IFTYPE_AP_VLAN:
140 *mode = IW_MODE_SECOND; /* FIXME */
141 break;
142 default:
143 *mode = IW_MODE_AUTO;
144 break;
145 }
146 return 0;
147}
ba44cb72 148EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
4aa188e1
JB		 149
150
151int cfg80211_wext_giwrange(struct net_device *dev,
152 struct iw_request_info *info,
153 struct iw_point *data, char *extra)
154{
155 struct wireless_dev *wdev = dev->ieee80211_ptr;
156 struct iw_range *range = (struct iw_range *) extra;
157 enum ieee80211_band band;
9834c079 158 int i, c = 0;
4aa188e1
JB		 159
160 if (!wdev)
161 return -EOPNOTSUPP;
162
163 data->length = sizeof(struct iw_range);
164 memset(range, 0, sizeof(struct iw_range));
165
166 range->we_version_compiled = WIRELESS_EXT;
167 range->we_version_source = 21;
168 range->retry_capa = IW_RETRY_LIMIT;
169 range->retry_flags = IW_RETRY_LIMIT;
170 range->min_retry = 0;
171 range->max_retry = 255;
172 range->min_rts = 0;
173 range->max_rts = 2347;
174 range->min_frag = 256;
175 range->max_frag = 2346;
176
4aa188e1
JB		 177 range->max_encoding_tokens = 4;
178
179 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
180
181 switch (wdev->wiphy->signal_type) {
182 case CFG80211_SIGNAL_TYPE_NONE:
183 break;
184 case CFG80211_SIGNAL_TYPE_MBM:
185 range->max_qual.level = -110;
186 range->max_qual.qual = 70;
187 range->avg_qual.qual = 35;
188 range->max_qual.updated |= IW_QUAL_DBM;
189 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
190 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
191 break;
192 case CFG80211_SIGNAL_TYPE_UNSPEC:
193 range->max_qual.level = 100;
194 range->max_qual.qual = 100;
195 range->avg_qual.qual = 50;
196 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
197 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
198 break;
199 }
200
201 range->avg_qual.level = range->max_qual.level / 2;
202 range->avg_qual.noise = range->max_qual.noise / 2;
203 range->avg_qual.updated = range->max_qual.updated;
204
9834c079
JB		 205 for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
206 switch (wdev->wiphy->cipher_suites[i]) {
3daf0975 207 case WLAN_CIPHER_SUITE_TKIP:
27bea66c
DK		 208 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
209 IW_ENC_CAPA_WPA);
3daf0975
DK		 210 break;
211
212 case WLAN_CIPHER_SUITE_CCMP:
27bea66c
DK		 213 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
214 IW_ENC_CAPA_WPA2);
3daf0975 215 break;
2ab658f9
DK		 216
217 case WLAN_CIPHER_SUITE_WEP40:
218 range->encoding_size[range->num_encoding_sizes++] =
219 WLAN_KEY_LEN_WEP40;
220 break;
221
222 case WLAN_CIPHER_SUITE_WEP104:
223 range->encoding_size[range->num_encoding_sizes++] =
224 WLAN_KEY_LEN_WEP104;
225 break;
3daf0975
DK		 226 }
227 }
4aa188e1 228
4aa188e1 229 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
4aa188e1
JB		 230 struct ieee80211_supported_band *sband;
231
232 sband = wdev->wiphy->bands[band];
233
234 if (!sband)
235 continue;
236
237 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
238 struct ieee80211_channel *chan = &sband->channels[i];
239
240 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
241 range->freq[c].i =
242 ieee80211_frequency_to_channel(
243 chan->center_freq);
244 range->freq[c].m = chan->center_freq;
245 range->freq[c].e = 6;
246 c++;
247 }
248 }
249 }
250 range->num_channels = c;
251 range->num_frequency = c;
252
253 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
254 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
255 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
256
51cd4aab
DK		 257 if (wdev->wiphy->max_scan_ssids > 0)
258 range->scan_capa |= IW_SCAN_CAPA_ESSID;
4aa188e1
JB		 259
260 return 0;
261}
ba44cb72 262EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
691597cb 263
04a773ad
JB		 264
265/**
266 * cfg80211_wext_freq - get wext frequency for non-"auto"
267 * @wiphy: the wiphy
268 * @freq: the wext freq encoding
269 *
270 * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
271 */
272struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
273 struct iw_freq *freq)
274{
0b258582
JB		 275 struct ieee80211_channel *chan;
276 int f;
277
278 /*
279 * Parse frequency - return NULL for auto and
280 * -EINVAL for impossible things.
281 */
04a773ad
JB		 282 if (freq->e == 0) {
283 if (freq->m < 0)
284 return NULL;
0b258582 285 f = ieee80211_channel_to_frequency(freq->m);
04a773ad
JB		 286 } else {
287 int i, div = 1000000;
288 for (i = 0; i < freq->e; i++)
289 div /= 10;
0b258582 290 if (div <= 0)
04a773ad 291 return ERR_PTR(-EINVAL);
0b258582 292 f = freq->m / div;
04a773ad
JB		 293 }
294
0b258582
JB		 295 /*
296 * Look up channel struct and return -EINVAL when
297 * it cannot be found.
298 */
299 chan = ieee80211_get_channel(wiphy, f);
300 if (!chan)
301 return ERR_PTR(-EINVAL);
302 return chan;
04a773ad 303}
b9a5f8ca
JM		 304
305int cfg80211_wext_siwrts(struct net_device *dev,
306 struct iw_request_info *info,
307 struct iw_param *rts, char *extra)
308{
309 struct wireless_dev *wdev = dev->ieee80211_ptr;
310 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
311 u32 orts = wdev->wiphy->rts_threshold;
312 int err;
313
314 if (rts->disabled || !rts->fixed)
315 wdev->wiphy->rts_threshold = (u32) -1;
316 else if (rts->value < 0)
317 return -EINVAL;
318 else
319 wdev->wiphy->rts_threshold = rts->value;
320
321 err = rdev->ops->set_wiphy_params(wdev->wiphy,
322 WIPHY_PARAM_RTS_THRESHOLD);
323 if (err)
324 wdev->wiphy->rts_threshold = orts;
325
326 return err;
327}
ba44cb72 328EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
b9a5f8ca
JM		 329
330int cfg80211_wext_giwrts(struct net_device *dev,
331 struct iw_request_info *info,
332 struct iw_param *rts, char *extra)
333{
334 struct wireless_dev *wdev = dev->ieee80211_ptr;
335
336 rts->value = wdev->wiphy->rts_threshold;
337 rts->disabled = rts->value == (u32) -1;
338 rts->fixed = 1;
339
340 return 0;
341}
ba44cb72 342EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
b9a5f8ca
JM		 343
344int cfg80211_wext_siwfrag(struct net_device *dev,
345 struct iw_request_info *info,
346 struct iw_param *frag, char *extra)
347{
348 struct wireless_dev *wdev = dev->ieee80211_ptr;
349 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
350 u32 ofrag = wdev->wiphy->frag_threshold;
351 int err;
352
353 if (frag->disabled || !frag->fixed)
354 wdev->wiphy->frag_threshold = (u32) -1;
355 else if (frag->value < 256)
356 return -EINVAL;
357 else {
358 /* Fragment length must be even, so strip LSB. */
359 wdev->wiphy->frag_threshold = frag->value & ~0x1;
360 }
361
362 err = rdev->ops->set_wiphy_params(wdev->wiphy,
363 WIPHY_PARAM_FRAG_THRESHOLD);
364 if (err)
365 wdev->wiphy->frag_threshold = ofrag;
366
367 return err;
368}
ba44cb72 369EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
b9a5f8ca
JM		 370
371int cfg80211_wext_giwfrag(struct net_device *dev,
372 struct iw_request_info *info,
373 struct iw_param *frag, char *extra)
374{
375 struct wireless_dev *wdev = dev->ieee80211_ptr;
376
377 frag->value = wdev->wiphy->frag_threshold;
378 frag->disabled = frag->value == (u32) -1;
379 frag->fixed = 1;
380
381 return 0;
382}
ba44cb72 383EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
b9a5f8ca
JM		 384
385int cfg80211_wext_siwretry(struct net_device *dev,
386 struct iw_request_info *info,
387 struct iw_param *retry, char *extra)
388{
389 struct wireless_dev *wdev = dev->ieee80211_ptr;
390 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
391 u32 changed = 0;
392 u8 olong = wdev->wiphy->retry_long;
393 u8 oshort = wdev->wiphy->retry_short;
394 int err;
395
396 if (retry->disabled ||
397 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
398 return -EINVAL;
399
400 if (retry->flags & IW_RETRY_LONG) {
401 wdev->wiphy->retry_long = retry->value;
402 changed |= WIPHY_PARAM_RETRY_LONG;
403 } else if (retry->flags & IW_RETRY_SHORT) {
404 wdev->wiphy->retry_short = retry->value;
405 changed |= WIPHY_PARAM_RETRY_SHORT;
406 } else {
407 wdev->wiphy->retry_short = retry->value;
408 wdev->wiphy->retry_long = retry->value;
409 changed |= WIPHY_PARAM_RETRY_LONG;
410 changed |= WIPHY_PARAM_RETRY_SHORT;
411 }
412
413 if (!changed)
414 return 0;
415
416 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
417 if (err) {
418 wdev->wiphy->retry_short = oshort;
419 wdev->wiphy->retry_long = olong;
420 }
421
422 return err;
423}
ba44cb72 424EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
b9a5f8ca
JM		 425
426int cfg80211_wext_giwretry(struct net_device *dev,
427 struct iw_request_info *info,
428 struct iw_param *retry, char *extra)
429{
430 struct wireless_dev *wdev = dev->ieee80211_ptr;
431
432 retry->disabled = 0;
433
434 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
435 /*
436 * First return short value, iwconfig will ask long value
437 * later if needed
438 */
439 retry->flags |= IW_RETRY_LIMIT;
440 retry->value = wdev->wiphy->retry_short;
441 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
442 retry->flags |= IW_RETRY_LONG;
443
444 return 0;
445 }
446
447 if (retry->flags & IW_RETRY_LONG) {
448 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
449 retry->value = wdev->wiphy->retry_long;
450 }
451
452 return 0;
453}
ba44cb72 454EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
08645126 455
fffd0934
JB		 456static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
457 struct net_device *dev, const u8 *addr,
458 bool remove, bool tx_key, int idx,
459 struct key_params *params)
08645126
JB		 460{
461 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934
JB		 462 int err, i;
463
464 if (!wdev->wext.keys) {
465 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
466 GFP_KERNEL);
467 if (!wdev->wext.keys)
468 return -ENOMEM;
469 for (i = 0; i < 6; i++)
470 wdev->wext.keys->params[i].key =
471 wdev->wext.keys->data[i];
472 }
473
474 if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
475 wdev->iftype != NL80211_IFTYPE_STATION)
476 return -EOPNOTSUPP;
08645126
JB		 477
478 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
fffd0934
JB		 479 if (!wdev->current_bss)
480 return -ENOLINK;
481
08645126
JB		 482 if (!rdev->ops->set_default_mgmt_key)
483 return -EOPNOTSUPP;
484
485 if (idx < 4 || idx > 5)
486 return -EINVAL;
487 } else if (idx < 0 || idx > 3)
488 return -EINVAL;
489
490 if (remove) {
fffd0934
JB		 491 err = 0;
492 if (wdev->current_bss)
493 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
08645126 494 if (!err) {
fffd0934
JB		 495 if (!addr) {
496 wdev->wext.keys->params[idx].key_len = 0;
497 wdev->wext.keys->params[idx].cipher = 0;
498 }
08645126
JB		 499 if (idx == wdev->wext.default_key)
500 wdev->wext.default_key = -1;
501 else if (idx == wdev->wext.default_mgmt_key)
502 wdev->wext.default_mgmt_key = -1;
503 }
e3da574a
JB		 504 /*
505 * Applications using wireless extensions expect to be
506 * able to delete keys that don't exist, so allow that.
507 */
508 if (err == -ENOENT)
509 return 0;
510
08645126 511 return err;
fffd0934 512 }
08645126 513
fffd0934
JB		 514 if (addr)
515 tx_key = false;
516
517 if (cfg80211_validate_key_settings(rdev, params, idx, addr))
518 return -EINVAL;
08645126 519
fffd0934
JB		 520 err = 0;
521 if (wdev->current_bss)
08645126 522 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
fffd0934
JB		 523 if (err)
524 return err;
525
526 if (!addr) {
527 wdev->wext.keys->params[idx] = *params;
528 memcpy(wdev->wext.keys->data[idx],
529 params->key, params->key_len);
530 wdev->wext.keys->params[idx].key =
531 wdev->wext.keys->data[idx];
532 }
08645126 533
1f00fca5
ZY		 534 if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
535 params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
fffd0934
JB		 536 (tx_key || (!addr && wdev->wext.default_key == -1))) {
537 if (wdev->current_bss)
08645126
JB		 538 err = rdev->ops->set_default_key(&rdev->wiphy,
539 dev, idx);
fffd0934
JB		 540 if (!err)
541 wdev->wext.default_key = idx;
542 return err;
543 }
08645126 544
fffd0934
JB		 545 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
546 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
547 if (wdev->current_bss)
08645126
JB		 548 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
549 dev, idx);
fffd0934
JB		 550 if (!err)
551 wdev->wext.default_mgmt_key = idx;
552 return err;
08645126 553 }
fffd0934
JB		 554
555 return 0;
556}
557
558static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
559 struct net_device *dev, const u8 *addr,
560 bool remove, bool tx_key, int idx,
561 struct key_params *params)
562{
563 int err;
564
565 wdev_lock(dev->ieee80211_ptr);
566 err = __cfg80211_set_encryption(rdev, dev, addr, remove,
567 tx_key, idx, params);
568 wdev_unlock(dev->ieee80211_ptr);
569
570 return err;
08645126
JB		 571}
572
573int cfg80211_wext_siwencode(struct net_device *dev,
574 struct iw_request_info *info,
575 struct iw_point *erq, char *keybuf)
576{
577 struct wireless_dev *wdev = dev->ieee80211_ptr;
578 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
579 int idx, err;
580 bool remove = false;
581 struct key_params params;
582
fffd0934
JB		 583 if (wdev->iftype != NL80211_IFTYPE_STATION &&
584 wdev->iftype != NL80211_IFTYPE_ADHOC)
585 return -EOPNOTSUPP;
586
08645126
JB		 587 /* no use -- only MFP (set_default_mgmt_key) is optional */
588 if (!rdev->ops->del_key ||
589 !rdev->ops->add_key ||
590 !rdev->ops->set_default_key)
591 return -EOPNOTSUPP;
592
593 idx = erq->flags & IW_ENCODE_INDEX;
594 if (idx == 0) {
595 idx = wdev->wext.default_key;
596 if (idx < 0)
597 idx = 0;
598 } else if (idx < 1 || idx > 4)
599 return -EINVAL;
600 else
601 idx--;
602
603 if (erq->flags & IW_ENCODE_DISABLED)
604 remove = true;
605 else if (erq->length == 0) {
606 /* No key data - just set the default TX key index */
fffd0934
JB		 607 err = 0;
608 wdev_lock(wdev);
609 if (wdev->current_bss)
610 err = rdev->ops->set_default_key(&rdev->wiphy,
611 dev, idx);
08645126
JB		 612 if (!err)
613 wdev->wext.default_key = idx;
fffd0934 614 wdev_unlock(wdev);
08645126
JB		 615 return err;
616 }
617
618 memset(&params, 0, sizeof(params));
619 params.key = keybuf;
620 params.key_len = erq->length;
621 if (erq->length == 5)
622 params.cipher = WLAN_CIPHER_SUITE_WEP40;
623 else if (erq->length == 13)
624 params.cipher = WLAN_CIPHER_SUITE_WEP104;
625 else if (!remove)
626 return -EINVAL;
627
628 return cfg80211_set_encryption(rdev, dev, NULL, remove,
629 wdev->wext.default_key == -1,
630 idx, &params);
631}
632EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
633
634int cfg80211_wext_siwencodeext(struct net_device *dev,
635 struct iw_request_info *info,
636 struct iw_point *erq, char *extra)
637{
638 struct wireless_dev *wdev = dev->ieee80211_ptr;
639 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
640 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
641 const u8 *addr;
642 int idx;
643 bool remove = false;
644 struct key_params params;
645 u32 cipher;
646
fffd0934
JB		 647 if (wdev->iftype != NL80211_IFTYPE_STATION &&
648 wdev->iftype != NL80211_IFTYPE_ADHOC)
649 return -EOPNOTSUPP;
650
08645126
JB		 651 /* no use -- only MFP (set_default_mgmt_key) is optional */
652 if (!rdev->ops->del_key ||
653 !rdev->ops->add_key ||
654 !rdev->ops->set_default_key)
655 return -EOPNOTSUPP;
656
657 switch (ext->alg) {
658 case IW_ENCODE_ALG_NONE:
659 remove = true;
660 cipher = 0;
661 break;
662 case IW_ENCODE_ALG_WEP:
663 if (ext->key_len == 5)
664 cipher = WLAN_CIPHER_SUITE_WEP40;
665 else if (ext->key_len == 13)
666 cipher = WLAN_CIPHER_SUITE_WEP104;
667 else
668 return -EINVAL;
669 break;
670 case IW_ENCODE_ALG_TKIP:
671 cipher = WLAN_CIPHER_SUITE_TKIP;
672 break;
673 case IW_ENCODE_ALG_CCMP:
674 cipher = WLAN_CIPHER_SUITE_CCMP;
675 break;
676 case IW_ENCODE_ALG_AES_CMAC:
677 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
678 break;
679 default:
680 return -EOPNOTSUPP;
681 }
682
683 if (erq->flags & IW_ENCODE_DISABLED)
684 remove = true;
685
686 idx = erq->flags & IW_ENCODE_INDEX;
687 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
688 if (idx < 4 || idx > 5) {
689 idx = wdev->wext.default_mgmt_key;
690 if (idx < 0)
691 return -EINVAL;
692 } else
693 idx--;
694 } else {
695 if (idx < 1 || idx > 4) {
696 idx = wdev->wext.default_key;
697 if (idx < 0)
698 return -EINVAL;
699 } else
700 idx--;
701 }
702
703 addr = ext->addr.sa_data;
704 if (is_broadcast_ether_addr(addr))
705 addr = NULL;
706
707 memset(&params, 0, sizeof(params));
708 params.key = ext->key;
709 params.key_len = ext->key_len;
710 params.cipher = cipher;
711
faa8fdc8
JM		 712 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
713 params.seq = ext->rx_seq;
714 params.seq_len = 6;
715 }
716
08645126
JB		 717 return cfg80211_set_encryption(
718 rdev, dev, addr, remove,
719 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
720 idx, &params);
721}
722EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
723
08645126
JB		 724int cfg80211_wext_giwencode(struct net_device *dev,
725 struct iw_request_info *info,
726 struct iw_point *erq, char *keybuf)
727{
728 struct wireless_dev *wdev = dev->ieee80211_ptr;
fffd0934 729 int idx;
08645126 730
fffd0934
JB		 731 if (wdev->iftype != NL80211_IFTYPE_STATION &&
732 wdev->iftype != NL80211_IFTYPE_ADHOC)
08645126
JB		 733 return -EOPNOTSUPP;
734
735 idx = erq->flags & IW_ENCODE_INDEX;
736 if (idx == 0) {
737 idx = wdev->wext.default_key;
738 if (idx < 0)
739 idx = 0;
740 } else if (idx < 1 || idx > 4)
741 return -EINVAL;
742 else
743 idx--;
744
745 erq->flags = idx + 1;
746
fffd0934 747 if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
08645126
JB		 748 erq->flags |= IW_ENCODE_DISABLED;
749 erq->length = 0;
750 return 0;
751 }
752
fffd0934
JB		 753 erq->length = min_t(size_t, erq->length,
754 wdev->wext.keys->params[idx].key_len);
755 memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
756 erq->flags |= IW_ENCODE_ENABLED;
757
758 return 0;
08645126
JB		 759}
760EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
7643a2c3 761
0e82ffe3
JB		 762int cfg80211_wext_siwfreq(struct net_device *dev,
763 struct iw_request_info *info,
764 struct iw_freq *freq, char *extra)
765{
766 struct wireless_dev *wdev = dev->ieee80211_ptr;
767 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
768 struct ieee80211_channel *chan;
769 int err;
770
771 switch (wdev->iftype) {
772 case NL80211_IFTYPE_STATION:
773 return cfg80211_mgd_wext_siwfreq(dev, info, freq, extra);
774 case NL80211_IFTYPE_ADHOC:
775 return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
776 default:
777 chan = cfg80211_wext_freq(wdev->wiphy, freq);
778 if (!chan)
779 return -EINVAL;
780 if (IS_ERR(chan))
781 return PTR_ERR(chan);
782 err = rdev->ops->set_channel(wdev->wiphy, chan,
783 NL80211_CHAN_NO_HT);
784 if (err)
785 return err;
786 rdev->channel = chan;
787 return 0;
788 }
789}
790EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
791
792int cfg80211_wext_giwfreq(struct net_device *dev,
793 struct iw_request_info *info,
794 struct iw_freq *freq, char *extra)
795{
796 struct wireless_dev *wdev = dev->ieee80211_ptr;
797 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
798
799 switch (wdev->iftype) {
800 case NL80211_IFTYPE_STATION:
801 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
802 case NL80211_IFTYPE_ADHOC:
803 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
804 default:
805 if (!rdev->channel)
806 return -EINVAL;
807 freq->m = rdev->channel->center_freq;
808 freq->e = 6;
809 return 0;
810 }
811}
812EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
813
7643a2c3
JB		 814int cfg80211_wext_siwtxpower(struct net_device *dev,
815 struct iw_request_info *info,
816 union iwreq_data *data, char *extra)
817{
818 struct wireless_dev *wdev = dev->ieee80211_ptr;
819 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
820 enum tx_power_setting type;
821 int dbm = 0;
822
823 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
824 return -EINVAL;
825 if (data->txpower.flags & IW_TXPOW_RANGE)
826 return -EINVAL;
827
828 if (!rdev->ops->set_tx_power)
829 return -EOPNOTSUPP;
830
831 /* only change when not disabling */
832 if (!data->txpower.disabled) {
1f87f7d3
JB		 833 rfkill_set_sw_state(rdev->rfkill, false);
834
7643a2c3
JB		 835 if (data->txpower.fixed) {
836 /*
837 * wext doesn't support negative values, see
838 * below where it's for automatic
839 */
840 if (data->txpower.value < 0)
841 return -EINVAL;
842 dbm = data->txpower.value;
843 type = TX_POWER_FIXED;
844 /* TODO: do regulatory check! */
845 } else {
846 /*
847 * Automatic power level setting, max being the value
848 * passed in from userland.
849 */
850 if (data->txpower.value < 0) {
851 type = TX_POWER_AUTOMATIC;
852 } else {
853 dbm = data->txpower.value;
854 type = TX_POWER_LIMITED;
855 }
856 }
857 } else {
1f87f7d3
JB		 858 rfkill_set_sw_state(rdev->rfkill, true);
859 schedule_work(&rdev->rfkill_sync);
860 return 0;
7643a2c3
JB		 861 }
862
863 return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
864}
865EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
866
867int cfg80211_wext_giwtxpower(struct net_device *dev,
868 struct iw_request_info *info,
869 union iwreq_data *data, char *extra)
870{
871 struct wireless_dev *wdev = dev->ieee80211_ptr;
872 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
873 int err, val;
874
875 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
876 return -EINVAL;
877 if (data->txpower.flags & IW_TXPOW_RANGE)
878 return -EINVAL;
879
880 if (!rdev->ops->get_tx_power)
881 return -EOPNOTSUPP;
882
883 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
1f87f7d3 884 if (err)
7643a2c3
JB		 885 return err;
886
887 /* well... oh well */
888 data->txpower.fixed = 1;
1f87f7d3 889 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
7643a2c3
JB		 890 data->txpower.value = val;
891 data->txpower.flags = IW_TXPOW_DBM;
892
893 return 0;
894}
895EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
f2129354
JB		 896
897static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
898 s32 auth_alg)
899{
900 int nr_alg = 0;
901
902 if (!auth_alg)
903 return -EINVAL;
904
905 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
906 IW_AUTH_ALG_SHARED_KEY |
907 IW_AUTH_ALG_LEAP))
908 return -EINVAL;
909
910 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
911 nr_alg++;
912 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
913 }
914
915 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
916 nr_alg++;
917 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
918 }
919
920 if (auth_alg & IW_AUTH_ALG_LEAP) {
921 nr_alg++;
922 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
923 }
924
925 if (nr_alg > 1)
926 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
927
928 return 0;
929}
930
931static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
932{
933 wdev->wext.connect.crypto.wpa_versions = 0;
934
935 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
323d566e
GS		 936 IW_AUTH_WPA_VERSION_WPA2|
937 IW_AUTH_WPA_VERSION_DISABLED))
f2129354
JB		 938 return -EINVAL;
939
323d566e
GS		 940 if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
941 (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
942 IW_AUTH_WPA_VERSION_WPA2)))
943 return -EINVAL;
944
945 if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
946 wdev->wext.connect.crypto.wpa_versions &=
947 ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
948
f2129354
JB		 949 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
950 wdev->wext.connect.crypto.wpa_versions |=
951 NL80211_WPA_VERSION_1;
952
953 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
954 wdev->wext.connect.crypto.wpa_versions |=
955 NL80211_WPA_VERSION_2;
956
957 return 0;
958}
959
4f5dadce 960static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
f2129354
JB		 961{
962 wdev->wext.connect.crypto.cipher_group = 0;
963
964 if (cipher & IW_AUTH_CIPHER_WEP40)
965 wdev->wext.connect.crypto.cipher_group =
966 WLAN_CIPHER_SUITE_WEP40;
967 else if (cipher & IW_AUTH_CIPHER_WEP104)
968 wdev->wext.connect.crypto.cipher_group =
969 WLAN_CIPHER_SUITE_WEP104;
970 else if (cipher & IW_AUTH_CIPHER_TKIP)
971 wdev->wext.connect.crypto.cipher_group =
972 WLAN_CIPHER_SUITE_TKIP;
973 else if (cipher & IW_AUTH_CIPHER_CCMP)
974 wdev->wext.connect.crypto.cipher_group =
975 WLAN_CIPHER_SUITE_CCMP;
976 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
977 wdev->wext.connect.crypto.cipher_group =
978 WLAN_CIPHER_SUITE_AES_CMAC;
979 else
980 return -EINVAL;
981
982 return 0;
983}
984
4f5dadce 985static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
f2129354
JB		 986{
987 int nr_ciphers = 0;
988 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
989
990 if (cipher & IW_AUTH_CIPHER_WEP40) {
991 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
992 nr_ciphers++;
993 }
994
995 if (cipher & IW_AUTH_CIPHER_WEP104) {
996 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
997 nr_ciphers++;
998 }
999
1000 if (cipher & IW_AUTH_CIPHER_TKIP) {
1001 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1002 nr_ciphers++;
1003 }
1004
1005 if (cipher & IW_AUTH_CIPHER_CCMP) {
1006 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1007 nr_ciphers++;
1008 }
1009
1010 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1011 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1012 nr_ciphers++;
1013 }
1014
1015 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1016
1017 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1018
1019 return 0;
1020}
1021
1022
4f5dadce 1023static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
f2129354
JB		 1024{
1025 int nr_akm_suites = 0;
1026
1027 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1028 IW_AUTH_KEY_MGMT_PSK))
1029 return -EINVAL;
1030
1031 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1032 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1033 WLAN_AKM_SUITE_8021X;
1034 nr_akm_suites++;
1035 }
1036
1037 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1038 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1039 WLAN_AKM_SUITE_PSK;
1040 nr_akm_suites++;
1041 }
1042
1043 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1044
1045 return 0;
1046}
1047
1048int cfg80211_wext_siwauth(struct net_device *dev,
1049 struct iw_request_info *info,
1050 struct iw_param *data, char *extra)
1051{
1052 struct wireless_dev *wdev = dev->ieee80211_ptr;
1053
1054 if (wdev->iftype != NL80211_IFTYPE_STATION)
1055 return -EOPNOTSUPP;
1056
1057 switch (data->flags & IW_AUTH_INDEX) {
1058 case IW_AUTH_PRIVACY_INVOKED:
1059 wdev->wext.connect.privacy = data->value;
1060 return 0;
1061 case IW_AUTH_WPA_VERSION:
1062 return cfg80211_set_wpa_version(wdev, data->value);
1063 case IW_AUTH_CIPHER_GROUP:
1064 return cfg80211_set_cipher_group(wdev, data->value);
1065 case IW_AUTH_KEY_MGMT:
1066 return cfg80211_set_key_mgt(wdev, data->value);
1067 case IW_AUTH_CIPHER_PAIRWISE:
1068 return cfg80211_set_cipher_pairwise(wdev, data->value);
1069 case IW_AUTH_80211_AUTH_ALG:
1070 return cfg80211_set_auth_alg(wdev, data->value);
1071 case IW_AUTH_WPA_ENABLED:
1072 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1073 case IW_AUTH_DROP_UNENCRYPTED:
1074 case IW_AUTH_MFP:
1075 return 0;
1076 default:
1077 return -EOPNOTSUPP;
1078 }
1079}
1080EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1081
1082int cfg80211_wext_giwauth(struct net_device *dev,
1083 struct iw_request_info *info,
1084 struct iw_param *data, char *extra)
1085{
1086 /* XXX: what do we need? */
1087
1088 return -EOPNOTSUPP;
1089}
1090EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
bc92afd9
JB		 1091
1092int cfg80211_wext_siwpower(struct net_device *dev,
1093 struct iw_request_info *info,
1094 struct iw_param *wrq, char *extra)
1095{
1096 struct wireless_dev *wdev = dev->ieee80211_ptr;
1097 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1098 bool ps = wdev->wext.ps;
1099 int timeout = wdev->wext.ps_timeout;
1100 int err;
1101
1102 if (wdev->iftype != NL80211_IFTYPE_STATION)
1103 return -EINVAL;
1104
1105 if (!rdev->ops->set_power_mgmt)
1106 return -EOPNOTSUPP;
1107
1108 if (wrq->disabled) {
1109 ps = false;
1110 } else {
1111 switch (wrq->flags & IW_POWER_MODE) {
1112 case IW_POWER_ON: /* If not specified */
1113 case IW_POWER_MODE: /* If set all mask */
1114 case IW_POWER_ALL_R: /* If explicitely state all */
1115 ps = true;
1116 break;
1117 default: /* Otherwise we ignore */
1118 return -EINVAL;
1119 }
1120
1121 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1122 return -EINVAL;
1123
1124 if (wrq->flags & IW_POWER_TIMEOUT)
1125 timeout = wrq->value / 1000;
1126 }
1127
1128 err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1129 if (err)
1130 return err;
1131
1132 wdev->wext.ps = ps;
1133 wdev->wext.ps_timeout = timeout;
1134
1135 return 0;
1136
1137}
1138EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1139
1140int cfg80211_wext_giwpower(struct net_device *dev,
1141 struct iw_request_info *info,
1142 struct iw_param *wrq, char *extra)
1143{
1144 struct wireless_dev *wdev = dev->ieee80211_ptr;
1145
1146 wrq->disabled = !wdev->wext.ps;
1147
1148 return 0;
1149}
1150EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
ab737a4f
JB		 1151
1152int cfg80211_wds_wext_siwap(struct net_device *dev,
1153 struct iw_request_info *info,
1154 struct sockaddr *addr, char *extra)
1155{
1156 struct wireless_dev *wdev = dev->ieee80211_ptr;
1157 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1158 int err;
1159
1160 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1161 return -EINVAL;
1162
1163 if (addr->sa_family != ARPHRD_ETHER)
1164 return -EINVAL;
1165
1166 if (netif_running(dev))
1167 return -EBUSY;
1168
1169 if (!rdev->ops->set_wds_peer)
1170 return -EOPNOTSUPP;
1171
1172 err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1173 if (err)
1174 return err;
1175
1176 memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1177
1178 return 0;
1179}
1180EXPORT_SYMBOL_GPL(cfg80211_wds_wext_siwap);
1181
1182int cfg80211_wds_wext_giwap(struct net_device *dev,
1183 struct iw_request_info *info,
1184 struct sockaddr *addr, char *extra)
1185{
1186 struct wireless_dev *wdev = dev->ieee80211_ptr;
1187
1188 if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1189 return -EINVAL;
1190
1191 addr->sa_family = ARPHRD_ETHER;
1192 memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1193
1194 return 0;
1195}
1196EXPORT_SYMBOL_GPL(cfg80211_wds_wext_giwap);
9930380f
JB		 1197
1198int cfg80211_wext_siwrate(struct net_device *dev,
1199 struct iw_request_info *info,
1200 struct iw_param *rate, char *extra)
1201{
1202 struct wireless_dev *wdev = dev->ieee80211_ptr;
1203 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1204 struct cfg80211_bitrate_mask mask;
1205
1206 if (!rdev->ops->set_bitrate_mask)
1207 return -EOPNOTSUPP;
1208
1209 mask.fixed = 0;
1210 mask.maxrate = 0;
1211
1212 if (rate->value < 0) {
1213 /* nothing */
1214 } else if (rate->fixed) {
1215 mask.fixed = rate->value / 1000; /* kbps */
1216 } else {
1217 mask.maxrate = rate->value / 1000; /* kbps */
1218 }
1219
1220 return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1221}
1222EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1223
1224int cfg80211_wext_giwrate(struct net_device *dev,
1225 struct iw_request_info *info,
1226 struct iw_param *rate, char *extra)
1227{
1228 struct wireless_dev *wdev = dev->ieee80211_ptr;
1229 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1230 /* we are under RTNL - globally locked - so can use a static struct */
1231 static struct station_info sinfo;
a71d62db 1232 u8 addr[ETH_ALEN];
9930380f
JB		 1233 int err;
1234
1235 if (wdev->iftype != NL80211_IFTYPE_STATION)
1236 return -EOPNOTSUPP;
1237
1238 if (!rdev->ops->get_station)
1239 return -EOPNOTSUPP;
1240
a71d62db
JB		 1241 err = 0;
1242 wdev_lock(wdev);
6c230c02 1243 if (wdev->current_bss)
a71d62db 1244 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
6c230c02 1245 else
a71d62db
JB		 1246 err = -EOPNOTSUPP;
1247 wdev_unlock(wdev);
1248 if (err)
1249 return err;
9930380f
JB		 1250
1251 err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1252 if (err)
1253 return err;
1254
1255 if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1256 return -EOPNOTSUPP;
1257
1258 rate->value = 0;
1259
1260 if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
1261 rate->value = 100000 * sinfo.txrate.legacy;
1262
1263 return 0;
1264}
1265EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
8990646d
JB		 1266
1267/* Get wireless statistics. Called by /proc/net/wireless and by SIOCGIWSTATS */
1268struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1269{
1270 struct wireless_dev *wdev = dev->ieee80211_ptr;
1271 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1272 /* we are under RTNL - globally locked - so can use static structs */
1273 static struct iw_statistics wstats;
1274 static struct station_info sinfo;
c56c5714 1275 u8 bssid[ETH_ALEN];
8990646d
JB		 1276
1277 if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1278 return NULL;
1279
1280 if (!rdev->ops->get_station)
1281 return NULL;
1282
c56c5714
JB		 1283 /* Grab BSSID of current BSS, if any */
1284 wdev_lock(wdev);
1285 if (!wdev->current_bss) {
1286 wdev_unlock(wdev);
8990646d 1287 return NULL;
c56c5714
JB		 1288 }
1289 memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1290 wdev_unlock(wdev);
8990646d 1291
c56c5714 1292 if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
8990646d
JB		 1293 return NULL;
1294
1295 memset(&wstats, 0, sizeof(wstats));
1296
1297 switch (rdev->wiphy.signal_type) {
1298 case CFG80211_SIGNAL_TYPE_MBM:
1299 if (sinfo.filled & STATION_INFO_SIGNAL) {
1300 int sig = sinfo.signal;
1301 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1302 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1303 wstats.qual.updated |= IW_QUAL_DBM;
1304 wstats.qual.level = sig;
1305 if (sig < -110)
1306 sig = -110;
1307 else if (sig > -40)
1308 sig = -40;
1309 wstats.qual.qual = sig + 110;
1310 break;
1311 }
1312 case CFG80211_SIGNAL_TYPE_UNSPEC:
1313 if (sinfo.filled & STATION_INFO_SIGNAL) {
1314 wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1315 wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1316 wstats.qual.level = sinfo.signal;
1317 wstats.qual.qual = sinfo.signal;
1318 break;
1319 }
1320 default:
1321 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1322 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1323 }
1324
1325 wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1326
1327 return &wstats;
1328}
1329EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
kernel source for telekom puls (alcatel/mediatek)