cfg80211: export cfg80211_wext_siwfreq
[linux-2.6.git] / net / wireless / wext-compat.c
1 /*
2  * cfg80211 - wext compat code
3  *
4  * This is temporary code until all wireless functionality is migrated
5  * into cfg80211, when that happens all the exports here go away and
6  * we directly assign the wireless handlers of wireless interfaces.
7  *
8  * Copyright 2008-2009  Johannes Berg <johannes@sipsolutions.net>
9  */
10
11 #include <linux/wireless.h>
12 #include <linux/nl80211.h>
13 #include <linux/if_arp.h>
14 #include <linux/etherdevice.h>
15 #include <net/iw_handler.h>
16 #include <net/cfg80211.h>
17 #include "wext-compat.h"
18 #include "core.h"
19
20 int 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 }
62 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
63
64 int 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;
71         int ret;
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
102         if (type == wdev->iftype)
103                 return 0;
104
105         memset(&vifparams, 0, sizeof(vifparams));
106
107         ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
108                                              NULL, &vifparams);
109         WARN_ON(!ret && wdev->iftype != type);
110
111         return ret;
112 }
113 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
114
115 int 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 }
148 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
149
150
151 int 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;
158         int i, c = 0;
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
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
205         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
206                 switch (wdev->wiphy->cipher_suites[i]) {
207                 case WLAN_CIPHER_SUITE_TKIP:
208                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
209                                             IW_ENC_CAPA_WPA);
210                         break;
211
212                 case WLAN_CIPHER_SUITE_CCMP:
213                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
214                                             IW_ENC_CAPA_WPA2);
215                         break;
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;
226                 }
227         }
228
229         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
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
257         if (wdev->wiphy->max_scan_ssids > 0)
258                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
259
260         return 0;
261 }
262 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
263
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 frequency, or a negative error code, or 0 for auto.
271  */
272 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
273 {
274         /*
275          * Parse frequency - return 0 for auto and
276          * -EINVAL for impossible things.
277          */
278         if (freq->e == 0) {
279                 if (freq->m < 0)
280                         return 0;
281                 return ieee80211_channel_to_frequency(freq->m);
282         } else {
283                 int i, div = 1000000;
284                 for (i = 0; i < freq->e; i++)
285                         div /= 10;
286                 if (div <= 0)
287                         return -EINVAL;
288                 return freq->m / div;
289         }
290 }
291
292 int cfg80211_wext_siwrts(struct net_device *dev,
293                          struct iw_request_info *info,
294                          struct iw_param *rts, char *extra)
295 {
296         struct wireless_dev *wdev = dev->ieee80211_ptr;
297         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
298         u32 orts = wdev->wiphy->rts_threshold;
299         int err;
300
301         if (rts->disabled || !rts->fixed)
302                 wdev->wiphy->rts_threshold = (u32) -1;
303         else if (rts->value < 0)
304                 return -EINVAL;
305         else
306                 wdev->wiphy->rts_threshold = rts->value;
307
308         err = rdev->ops->set_wiphy_params(wdev->wiphy,
309                                           WIPHY_PARAM_RTS_THRESHOLD);
310         if (err)
311                 wdev->wiphy->rts_threshold = orts;
312
313         return err;
314 }
315 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
316
317 int cfg80211_wext_giwrts(struct net_device *dev,
318                          struct iw_request_info *info,
319                          struct iw_param *rts, char *extra)
320 {
321         struct wireless_dev *wdev = dev->ieee80211_ptr;
322
323         rts->value = wdev->wiphy->rts_threshold;
324         rts->disabled = rts->value == (u32) -1;
325         rts->fixed = 1;
326
327         return 0;
328 }
329 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
330
331 int cfg80211_wext_siwfrag(struct net_device *dev,
332                           struct iw_request_info *info,
333                           struct iw_param *frag, char *extra)
334 {
335         struct wireless_dev *wdev = dev->ieee80211_ptr;
336         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
337         u32 ofrag = wdev->wiphy->frag_threshold;
338         int err;
339
340         if (frag->disabled || !frag->fixed)
341                 wdev->wiphy->frag_threshold = (u32) -1;
342         else if (frag->value < 256)
343                 return -EINVAL;
344         else {
345                 /* Fragment length must be even, so strip LSB. */
346                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
347         }
348
349         err = rdev->ops->set_wiphy_params(wdev->wiphy,
350                                           WIPHY_PARAM_FRAG_THRESHOLD);
351         if (err)
352                 wdev->wiphy->frag_threshold = ofrag;
353
354         return err;
355 }
356 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
357
358 int cfg80211_wext_giwfrag(struct net_device *dev,
359                           struct iw_request_info *info,
360                           struct iw_param *frag, char *extra)
361 {
362         struct wireless_dev *wdev = dev->ieee80211_ptr;
363
364         frag->value = wdev->wiphy->frag_threshold;
365         frag->disabled = frag->value == (u32) -1;
366         frag->fixed = 1;
367
368         return 0;
369 }
370 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
371
372 int cfg80211_wext_siwretry(struct net_device *dev,
373                            struct iw_request_info *info,
374                            struct iw_param *retry, char *extra)
375 {
376         struct wireless_dev *wdev = dev->ieee80211_ptr;
377         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
378         u32 changed = 0;
379         u8 olong = wdev->wiphy->retry_long;
380         u8 oshort = wdev->wiphy->retry_short;
381         int err;
382
383         if (retry->disabled ||
384             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
385                 return -EINVAL;
386
387         if (retry->flags & IW_RETRY_LONG) {
388                 wdev->wiphy->retry_long = retry->value;
389                 changed |= WIPHY_PARAM_RETRY_LONG;
390         } else if (retry->flags & IW_RETRY_SHORT) {
391                 wdev->wiphy->retry_short = retry->value;
392                 changed |= WIPHY_PARAM_RETRY_SHORT;
393         } else {
394                 wdev->wiphy->retry_short = retry->value;
395                 wdev->wiphy->retry_long = retry->value;
396                 changed |= WIPHY_PARAM_RETRY_LONG;
397                 changed |= WIPHY_PARAM_RETRY_SHORT;
398         }
399
400         if (!changed)
401                 return 0;
402
403         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
404         if (err) {
405                 wdev->wiphy->retry_short = oshort;
406                 wdev->wiphy->retry_long = olong;
407         }
408
409         return err;
410 }
411 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
412
413 int cfg80211_wext_giwretry(struct net_device *dev,
414                            struct iw_request_info *info,
415                            struct iw_param *retry, char *extra)
416 {
417         struct wireless_dev *wdev = dev->ieee80211_ptr;
418
419         retry->disabled = 0;
420
421         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
422                 /*
423                  * First return short value, iwconfig will ask long value
424                  * later if needed
425                  */
426                 retry->flags |= IW_RETRY_LIMIT;
427                 retry->value = wdev->wiphy->retry_short;
428                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
429                         retry->flags |= IW_RETRY_LONG;
430
431                 return 0;
432         }
433
434         if (retry->flags & IW_RETRY_LONG) {
435                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
436                 retry->value = wdev->wiphy->retry_long;
437         }
438
439         return 0;
440 }
441 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
442
443 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
444                                      struct net_device *dev, const u8 *addr,
445                                      bool remove, bool tx_key, int idx,
446                                      struct key_params *params)
447 {
448         struct wireless_dev *wdev = dev->ieee80211_ptr;
449         int err, i;
450
451         if (!wdev->wext.keys) {
452                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
453                                               GFP_KERNEL);
454                 if (!wdev->wext.keys)
455                         return -ENOMEM;
456                 for (i = 0; i < 6; i++)
457                         wdev->wext.keys->params[i].key =
458                                 wdev->wext.keys->data[i];
459         }
460
461         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
462             wdev->iftype != NL80211_IFTYPE_STATION)
463                 return -EOPNOTSUPP;
464
465         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
466                 if (!wdev->current_bss)
467                         return -ENOLINK;
468
469                 if (!rdev->ops->set_default_mgmt_key)
470                         return -EOPNOTSUPP;
471
472                 if (idx < 4 || idx > 5)
473                         return -EINVAL;
474         } else if (idx < 0 || idx > 3)
475                 return -EINVAL;
476
477         if (remove) {
478                 err = 0;
479                 if (wdev->current_bss)
480                         err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
481                 if (!err) {
482                         if (!addr) {
483                                 wdev->wext.keys->params[idx].key_len = 0;
484                                 wdev->wext.keys->params[idx].cipher = 0;
485                         }
486                         if (idx == wdev->wext.default_key)
487                                 wdev->wext.default_key = -1;
488                         else if (idx == wdev->wext.default_mgmt_key)
489                                 wdev->wext.default_mgmt_key = -1;
490                 }
491                 /*
492                  * Applications using wireless extensions expect to be
493                  * able to delete keys that don't exist, so allow that.
494                  */
495                 if (err == -ENOENT)
496                         return 0;
497
498                 return err;
499         }
500
501         if (addr)
502                 tx_key = false;
503
504         if (cfg80211_validate_key_settings(rdev, params, idx, addr))
505                 return -EINVAL;
506
507         err = 0;
508         if (wdev->current_bss)
509                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
510         if (err)
511                 return err;
512
513         if (!addr) {
514                 wdev->wext.keys->params[idx] = *params;
515                 memcpy(wdev->wext.keys->data[idx],
516                         params->key, params->key_len);
517                 wdev->wext.keys->params[idx].key =
518                         wdev->wext.keys->data[idx];
519         }
520
521         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
522              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
523             (tx_key || (!addr && wdev->wext.default_key == -1))) {
524                 if (wdev->current_bss)
525                         err = rdev->ops->set_default_key(&rdev->wiphy,
526                                                          dev, idx);
527                 if (!err)
528                         wdev->wext.default_key = idx;
529                 return err;
530         }
531
532         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
533             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
534                 if (wdev->current_bss)
535                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
536                                                               dev, idx);
537                 if (!err)
538                         wdev->wext.default_mgmt_key = idx;
539                 return err;
540         }
541
542         return 0;
543 }
544
545 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
546                                    struct net_device *dev, const u8 *addr,
547                                    bool remove, bool tx_key, int idx,
548                                    struct key_params *params)
549 {
550         int err;
551
552         wdev_lock(dev->ieee80211_ptr);
553         err = __cfg80211_set_encryption(rdev, dev, addr, remove,
554                                         tx_key, idx, params);
555         wdev_unlock(dev->ieee80211_ptr);
556
557         return err;
558 }
559
560 int cfg80211_wext_siwencode(struct net_device *dev,
561                             struct iw_request_info *info,
562                             struct iw_point *erq, char *keybuf)
563 {
564         struct wireless_dev *wdev = dev->ieee80211_ptr;
565         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
566         int idx, err;
567         bool remove = false;
568         struct key_params params;
569
570         if (wdev->iftype != NL80211_IFTYPE_STATION &&
571             wdev->iftype != NL80211_IFTYPE_ADHOC)
572                 return -EOPNOTSUPP;
573
574         /* no use -- only MFP (set_default_mgmt_key) is optional */
575         if (!rdev->ops->del_key ||
576             !rdev->ops->add_key ||
577             !rdev->ops->set_default_key)
578                 return -EOPNOTSUPP;
579
580         idx = erq->flags & IW_ENCODE_INDEX;
581         if (idx == 0) {
582                 idx = wdev->wext.default_key;
583                 if (idx < 0)
584                         idx = 0;
585         } else if (idx < 1 || idx > 4)
586                 return -EINVAL;
587         else
588                 idx--;
589
590         if (erq->flags & IW_ENCODE_DISABLED)
591                 remove = true;
592         else if (erq->length == 0) {
593                 /* No key data - just set the default TX key index */
594                 err = 0;
595                 wdev_lock(wdev);
596                 if (wdev->current_bss)
597                         err = rdev->ops->set_default_key(&rdev->wiphy,
598                                                          dev, idx);
599                 if (!err)
600                         wdev->wext.default_key = idx;
601                 wdev_unlock(wdev);
602                 return err;
603         }
604
605         memset(&params, 0, sizeof(params));
606         params.key = keybuf;
607         params.key_len = erq->length;
608         if (erq->length == 5)
609                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
610         else if (erq->length == 13)
611                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
612         else if (!remove)
613                 return -EINVAL;
614
615         return cfg80211_set_encryption(rdev, dev, NULL, remove,
616                                        wdev->wext.default_key == -1,
617                                        idx, &params);
618 }
619 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
620
621 int cfg80211_wext_siwencodeext(struct net_device *dev,
622                                struct iw_request_info *info,
623                                struct iw_point *erq, char *extra)
624 {
625         struct wireless_dev *wdev = dev->ieee80211_ptr;
626         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
627         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
628         const u8 *addr;
629         int idx;
630         bool remove = false;
631         struct key_params params;
632         u32 cipher;
633
634         if (wdev->iftype != NL80211_IFTYPE_STATION &&
635             wdev->iftype != NL80211_IFTYPE_ADHOC)
636                 return -EOPNOTSUPP;
637
638         /* no use -- only MFP (set_default_mgmt_key) is optional */
639         if (!rdev->ops->del_key ||
640             !rdev->ops->add_key ||
641             !rdev->ops->set_default_key)
642                 return -EOPNOTSUPP;
643
644         switch (ext->alg) {
645         case IW_ENCODE_ALG_NONE:
646                 remove = true;
647                 cipher = 0;
648                 break;
649         case IW_ENCODE_ALG_WEP:
650                 if (ext->key_len == 5)
651                         cipher = WLAN_CIPHER_SUITE_WEP40;
652                 else if (ext->key_len == 13)
653                         cipher = WLAN_CIPHER_SUITE_WEP104;
654                 else
655                         return -EINVAL;
656                 break;
657         case IW_ENCODE_ALG_TKIP:
658                 cipher = WLAN_CIPHER_SUITE_TKIP;
659                 break;
660         case IW_ENCODE_ALG_CCMP:
661                 cipher = WLAN_CIPHER_SUITE_CCMP;
662                 break;
663         case IW_ENCODE_ALG_AES_CMAC:
664                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
665                 break;
666         default:
667                 return -EOPNOTSUPP;
668         }
669
670         if (erq->flags & IW_ENCODE_DISABLED)
671                 remove = true;
672
673         idx = erq->flags & IW_ENCODE_INDEX;
674         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
675                 if (idx < 4 || idx > 5) {
676                         idx = wdev->wext.default_mgmt_key;
677                         if (idx < 0)
678                                 return -EINVAL;
679                 } else
680                         idx--;
681         } else {
682                 if (idx < 1 || idx > 4) {
683                         idx = wdev->wext.default_key;
684                         if (idx < 0)
685                                 return -EINVAL;
686                 } else
687                         idx--;
688         }
689
690         addr = ext->addr.sa_data;
691         if (is_broadcast_ether_addr(addr))
692                 addr = NULL;
693
694         memset(&params, 0, sizeof(params));
695         params.key = ext->key;
696         params.key_len = ext->key_len;
697         params.cipher = cipher;
698
699         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
700                 params.seq = ext->rx_seq;
701                 params.seq_len = 6;
702         }
703
704         return cfg80211_set_encryption(
705                         rdev, dev, addr, remove,
706                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
707                         idx, &params);
708 }
709 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
710
711 int cfg80211_wext_giwencode(struct net_device *dev,
712                             struct iw_request_info *info,
713                             struct iw_point *erq, char *keybuf)
714 {
715         struct wireless_dev *wdev = dev->ieee80211_ptr;
716         int idx;
717
718         if (wdev->iftype != NL80211_IFTYPE_STATION &&
719             wdev->iftype != NL80211_IFTYPE_ADHOC)
720                 return -EOPNOTSUPP;
721
722         idx = erq->flags & IW_ENCODE_INDEX;
723         if (idx == 0) {
724                 idx = wdev->wext.default_key;
725                 if (idx < 0)
726                         idx = 0;
727         } else if (idx < 1 || idx > 4)
728                 return -EINVAL;
729         else
730                 idx--;
731
732         erq->flags = idx + 1;
733
734         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
735                 erq->flags |= IW_ENCODE_DISABLED;
736                 erq->length = 0;
737                 return 0;
738         }
739
740         erq->length = min_t(size_t, erq->length,
741                             wdev->wext.keys->params[idx].key_len);
742         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
743         erq->flags |= IW_ENCODE_ENABLED;
744
745         return 0;
746 }
747 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
748
749 int cfg80211_wext_siwfreq(struct net_device *dev,
750                           struct iw_request_info *info,
751                           struct iw_freq *wextfreq, char *extra)
752 {
753         struct wireless_dev *wdev = dev->ieee80211_ptr;
754         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
755         int freq, err;
756
757         switch (wdev->iftype) {
758         case NL80211_IFTYPE_STATION:
759                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
760         case NL80211_IFTYPE_ADHOC:
761                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
762         default:
763                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
764                 if (freq < 0)
765                         return freq;
766                 if (freq == 0)
767                         return -EINVAL;
768                 mutex_lock(&rdev->devlist_mtx);
769                 err = rdev_set_freq(rdev, NULL, freq, NL80211_CHAN_NO_HT);
770                 mutex_unlock(&rdev->devlist_mtx);
771                 return err;
772         }
773 }
774 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
775
776 int cfg80211_wext_giwfreq(struct net_device *dev,
777                           struct iw_request_info *info,
778                           struct iw_freq *freq, char *extra)
779 {
780         struct wireless_dev *wdev = dev->ieee80211_ptr;
781         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
782
783         switch (wdev->iftype) {
784         case NL80211_IFTYPE_STATION:
785                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
786         case NL80211_IFTYPE_ADHOC:
787                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
788         default:
789                 if (!rdev->channel)
790                         return -EINVAL;
791                 freq->m = rdev->channel->center_freq;
792                 freq->e = 6;
793                 return 0;
794         }
795 }
796 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
797
798 int cfg80211_wext_siwtxpower(struct net_device *dev,
799                              struct iw_request_info *info,
800                              union iwreq_data *data, char *extra)
801 {
802         struct wireless_dev *wdev = dev->ieee80211_ptr;
803         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
804         enum tx_power_setting type;
805         int dbm = 0;
806
807         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
808                 return -EINVAL;
809         if (data->txpower.flags & IW_TXPOW_RANGE)
810                 return -EINVAL;
811
812         if (!rdev->ops->set_tx_power)
813                 return -EOPNOTSUPP;
814
815         /* only change when not disabling */
816         if (!data->txpower.disabled) {
817                 rfkill_set_sw_state(rdev->rfkill, false);
818
819                 if (data->txpower.fixed) {
820                         /*
821                          * wext doesn't support negative values, see
822                          * below where it's for automatic
823                          */
824                         if (data->txpower.value < 0)
825                                 return -EINVAL;
826                         dbm = data->txpower.value;
827                         type = TX_POWER_FIXED;
828                         /* TODO: do regulatory check! */
829                 } else {
830                         /*
831                          * Automatic power level setting, max being the value
832                          * passed in from userland.
833                          */
834                         if (data->txpower.value < 0) {
835                                 type = TX_POWER_AUTOMATIC;
836                         } else {
837                                 dbm = data->txpower.value;
838                                 type = TX_POWER_LIMITED;
839                         }
840                 }
841         } else {
842                 rfkill_set_sw_state(rdev->rfkill, true);
843                 schedule_work(&rdev->rfkill_sync);
844                 return 0;
845         }
846
847         return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
848 }
849 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
850
851 int cfg80211_wext_giwtxpower(struct net_device *dev,
852                              struct iw_request_info *info,
853                              union iwreq_data *data, char *extra)
854 {
855         struct wireless_dev *wdev = dev->ieee80211_ptr;
856         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
857         int err, val;
858
859         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
860                 return -EINVAL;
861         if (data->txpower.flags & IW_TXPOW_RANGE)
862                 return -EINVAL;
863
864         if (!rdev->ops->get_tx_power)
865                 return -EOPNOTSUPP;
866
867         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
868         if (err)
869                 return err;
870
871         /* well... oh well */
872         data->txpower.fixed = 1;
873         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
874         data->txpower.value = val;
875         data->txpower.flags = IW_TXPOW_DBM;
876
877         return 0;
878 }
879 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
880
881 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
882                                  s32 auth_alg)
883 {
884         int nr_alg = 0;
885
886         if (!auth_alg)
887                 return -EINVAL;
888
889         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
890                          IW_AUTH_ALG_SHARED_KEY |
891                          IW_AUTH_ALG_LEAP))
892                 return -EINVAL;
893
894         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
895                 nr_alg++;
896                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
897         }
898
899         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
900                 nr_alg++;
901                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
902         }
903
904         if (auth_alg & IW_AUTH_ALG_LEAP) {
905                 nr_alg++;
906                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
907         }
908
909         if (nr_alg > 1)
910                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
911
912         return 0;
913 }
914
915 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
916 {
917         wdev->wext.connect.crypto.wpa_versions = 0;
918
919         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
920                              IW_AUTH_WPA_VERSION_WPA2|
921                              IW_AUTH_WPA_VERSION_DISABLED))
922                 return -EINVAL;
923
924         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
925             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
926                              IW_AUTH_WPA_VERSION_WPA2)))
927                 return -EINVAL;
928
929         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
930                 wdev->wext.connect.crypto.wpa_versions &=
931                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
932
933         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
934                 wdev->wext.connect.crypto.wpa_versions |=
935                         NL80211_WPA_VERSION_1;
936
937         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
938                 wdev->wext.connect.crypto.wpa_versions |=
939                         NL80211_WPA_VERSION_2;
940
941         return 0;
942 }
943
944 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
945 {
946         wdev->wext.connect.crypto.cipher_group = 0;
947
948         if (cipher & IW_AUTH_CIPHER_WEP40)
949                 wdev->wext.connect.crypto.cipher_group =
950                         WLAN_CIPHER_SUITE_WEP40;
951         else if (cipher & IW_AUTH_CIPHER_WEP104)
952                 wdev->wext.connect.crypto.cipher_group =
953                         WLAN_CIPHER_SUITE_WEP104;
954         else if (cipher & IW_AUTH_CIPHER_TKIP)
955                 wdev->wext.connect.crypto.cipher_group =
956                         WLAN_CIPHER_SUITE_TKIP;
957         else if (cipher & IW_AUTH_CIPHER_CCMP)
958                 wdev->wext.connect.crypto.cipher_group =
959                         WLAN_CIPHER_SUITE_CCMP;
960         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
961                 wdev->wext.connect.crypto.cipher_group =
962                         WLAN_CIPHER_SUITE_AES_CMAC;
963         else
964                 return -EINVAL;
965
966         return 0;
967 }
968
969 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
970 {
971         int nr_ciphers = 0;
972         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
973
974         if (cipher & IW_AUTH_CIPHER_WEP40) {
975                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
976                 nr_ciphers++;
977         }
978
979         if (cipher & IW_AUTH_CIPHER_WEP104) {
980                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
981                 nr_ciphers++;
982         }
983
984         if (cipher & IW_AUTH_CIPHER_TKIP) {
985                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
986                 nr_ciphers++;
987         }
988
989         if (cipher & IW_AUTH_CIPHER_CCMP) {
990                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
991                 nr_ciphers++;
992         }
993
994         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
995                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
996                 nr_ciphers++;
997         }
998
999         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1000
1001         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1002
1003         return 0;
1004 }
1005
1006
1007 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1008 {
1009         int nr_akm_suites = 0;
1010
1011         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1012                         IW_AUTH_KEY_MGMT_PSK))
1013                 return -EINVAL;
1014
1015         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1016                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1017                         WLAN_AKM_SUITE_8021X;
1018                 nr_akm_suites++;
1019         }
1020
1021         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1022                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1023                         WLAN_AKM_SUITE_PSK;
1024                 nr_akm_suites++;
1025         }
1026
1027         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1028
1029         return 0;
1030 }
1031
1032 int cfg80211_wext_siwauth(struct net_device *dev,
1033                           struct iw_request_info *info,
1034                           struct iw_param *data, char *extra)
1035 {
1036         struct wireless_dev *wdev = dev->ieee80211_ptr;
1037
1038         if (wdev->iftype != NL80211_IFTYPE_STATION)
1039                 return -EOPNOTSUPP;
1040
1041         switch (data->flags & IW_AUTH_INDEX) {
1042         case IW_AUTH_PRIVACY_INVOKED:
1043                 wdev->wext.connect.privacy = data->value;
1044                 return 0;
1045         case IW_AUTH_WPA_VERSION:
1046                 return cfg80211_set_wpa_version(wdev, data->value);
1047         case IW_AUTH_CIPHER_GROUP:
1048                 return cfg80211_set_cipher_group(wdev, data->value);
1049         case IW_AUTH_KEY_MGMT:
1050                 return cfg80211_set_key_mgt(wdev, data->value);
1051         case IW_AUTH_CIPHER_PAIRWISE:
1052                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1053         case IW_AUTH_80211_AUTH_ALG:
1054                 return cfg80211_set_auth_alg(wdev, data->value);
1055         case IW_AUTH_WPA_ENABLED:
1056         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1057         case IW_AUTH_DROP_UNENCRYPTED:
1058         case IW_AUTH_MFP:
1059                 return 0;
1060         default:
1061                 return -EOPNOTSUPP;
1062         }
1063 }
1064 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1065
1066 int cfg80211_wext_giwauth(struct net_device *dev,
1067                           struct iw_request_info *info,
1068                           struct iw_param *data, char *extra)
1069 {
1070         /* XXX: what do we need? */
1071
1072         return -EOPNOTSUPP;
1073 }
1074 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1075
1076 int cfg80211_wext_siwpower(struct net_device *dev,
1077                            struct iw_request_info *info,
1078                            struct iw_param *wrq, char *extra)
1079 {
1080         struct wireless_dev *wdev = dev->ieee80211_ptr;
1081         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1082         bool ps = wdev->wext.ps;
1083         int timeout = wdev->wext.ps_timeout;
1084         int err;
1085
1086         if (wdev->iftype != NL80211_IFTYPE_STATION)
1087                 return -EINVAL;
1088
1089         if (!rdev->ops->set_power_mgmt)
1090                 return -EOPNOTSUPP;
1091
1092         if (wrq->disabled) {
1093                 ps = false;
1094         } else {
1095                 switch (wrq->flags & IW_POWER_MODE) {
1096                 case IW_POWER_ON:       /* If not specified */
1097                 case IW_POWER_MODE:     /* If set all mask */
1098                 case IW_POWER_ALL_R:    /* If explicitely state all */
1099                         ps = true;
1100                         break;
1101                 default:                /* Otherwise we ignore */
1102                         return -EINVAL;
1103                 }
1104
1105                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1106                         return -EINVAL;
1107
1108                 if (wrq->flags & IW_POWER_TIMEOUT)
1109                         timeout = wrq->value / 1000;
1110         }
1111
1112         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1113         if (err)
1114                 return err;
1115
1116         wdev->wext.ps = ps;
1117         wdev->wext.ps_timeout = timeout;
1118
1119         return 0;
1120
1121 }
1122 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1123
1124 int cfg80211_wext_giwpower(struct net_device *dev,
1125                            struct iw_request_info *info,
1126                            struct iw_param *wrq, char *extra)
1127 {
1128         struct wireless_dev *wdev = dev->ieee80211_ptr;
1129
1130         wrq->disabled = !wdev->wext.ps;
1131
1132         return 0;
1133 }
1134 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1135
1136 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1137                                    struct iw_request_info *info,
1138                                    struct sockaddr *addr, char *extra)
1139 {
1140         struct wireless_dev *wdev = dev->ieee80211_ptr;
1141         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1142         int err;
1143
1144         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1145                 return -EINVAL;
1146
1147         if (addr->sa_family != ARPHRD_ETHER)
1148                 return -EINVAL;
1149
1150         if (netif_running(dev))
1151                 return -EBUSY;
1152
1153         if (!rdev->ops->set_wds_peer)
1154                 return -EOPNOTSUPP;
1155
1156         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1157         if (err)
1158                 return err;
1159
1160         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1161
1162         return 0;
1163 }
1164
1165 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1166                                    struct iw_request_info *info,
1167                                    struct sockaddr *addr, char *extra)
1168 {
1169         struct wireless_dev *wdev = dev->ieee80211_ptr;
1170
1171         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1172                 return -EINVAL;
1173
1174         addr->sa_family = ARPHRD_ETHER;
1175         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1176
1177         return 0;
1178 }
1179
1180 int cfg80211_wext_siwrate(struct net_device *dev,
1181                           struct iw_request_info *info,
1182                           struct iw_param *rate, char *extra)
1183 {
1184         struct wireless_dev *wdev = dev->ieee80211_ptr;
1185         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1186         struct cfg80211_bitrate_mask mask;
1187
1188         if (!rdev->ops->set_bitrate_mask)
1189                 return -EOPNOTSUPP;
1190
1191         mask.fixed = 0;
1192         mask.maxrate = 0;
1193
1194         if (rate->value < 0) {
1195                 /* nothing */
1196         } else if (rate->fixed) {
1197                 mask.fixed = rate->value / 1000; /* kbps */
1198         } else {
1199                 mask.maxrate = rate->value / 1000; /* kbps */
1200         }
1201
1202         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1203 }
1204 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1205
1206 int cfg80211_wext_giwrate(struct net_device *dev,
1207                           struct iw_request_info *info,
1208                           struct iw_param *rate, char *extra)
1209 {
1210         struct wireless_dev *wdev = dev->ieee80211_ptr;
1211         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1212         /* we are under RTNL - globally locked - so can use a static struct */
1213         static struct station_info sinfo;
1214         u8 addr[ETH_ALEN];
1215         int err;
1216
1217         if (wdev->iftype != NL80211_IFTYPE_STATION)
1218                 return -EOPNOTSUPP;
1219
1220         if (!rdev->ops->get_station)
1221                 return -EOPNOTSUPP;
1222
1223         err = 0;
1224         wdev_lock(wdev);
1225         if (wdev->current_bss)
1226                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1227         else
1228                 err = -EOPNOTSUPP;
1229         wdev_unlock(wdev);
1230         if (err)
1231                 return err;
1232
1233         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1234         if (err)
1235                 return err;
1236
1237         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1238                 return -EOPNOTSUPP;
1239
1240         rate->value = 0;
1241
1242         if (!(sinfo.txrate.flags & RATE_INFO_FLAGS_MCS))
1243                 rate->value = 100000 * sinfo.txrate.legacy;
1244
1245         return 0;
1246 }
1247 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1248
1249 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1250 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1251 {
1252         struct wireless_dev *wdev = dev->ieee80211_ptr;
1253         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1254         /* we are under RTNL - globally locked - so can use static structs */
1255         static struct iw_statistics wstats;
1256         static struct station_info sinfo;
1257         u8 bssid[ETH_ALEN];
1258
1259         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1260                 return NULL;
1261
1262         if (!rdev->ops->get_station)
1263                 return NULL;
1264
1265         /* Grab BSSID of current BSS, if any */
1266         wdev_lock(wdev);
1267         if (!wdev->current_bss) {
1268                 wdev_unlock(wdev);
1269                 return NULL;
1270         }
1271         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1272         wdev_unlock(wdev);
1273
1274         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1275                 return NULL;
1276
1277         memset(&wstats, 0, sizeof(wstats));
1278
1279         switch (rdev->wiphy.signal_type) {
1280         case CFG80211_SIGNAL_TYPE_MBM:
1281                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1282                         int sig = sinfo.signal;
1283                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1284                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1285                         wstats.qual.updated |= IW_QUAL_DBM;
1286                         wstats.qual.level = sig;
1287                         if (sig < -110)
1288                                 sig = -110;
1289                         else if (sig > -40)
1290                                 sig = -40;
1291                         wstats.qual.qual = sig + 110;
1292                         break;
1293                 }
1294         case CFG80211_SIGNAL_TYPE_UNSPEC:
1295                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1296                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1297                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1298                         wstats.qual.level = sinfo.signal;
1299                         wstats.qual.qual = sinfo.signal;
1300                         break;
1301                 }
1302         default:
1303                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1304                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1305         }
1306
1307         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1308
1309         return &wstats;
1310 }
1311 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1312
1313 int cfg80211_wext_siwap(struct net_device *dev,
1314                         struct iw_request_info *info,
1315                         struct sockaddr *ap_addr, char *extra)
1316 {
1317         struct wireless_dev *wdev = dev->ieee80211_ptr;
1318
1319         switch (wdev->iftype) {
1320         case NL80211_IFTYPE_ADHOC:
1321                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1322         case NL80211_IFTYPE_STATION:
1323                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1324         case NL80211_IFTYPE_WDS:
1325                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1326         default:
1327                 return -EOPNOTSUPP;
1328         }
1329 }
1330 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1331
1332 int cfg80211_wext_giwap(struct net_device *dev,
1333                         struct iw_request_info *info,
1334                         struct sockaddr *ap_addr, char *extra)
1335 {
1336         struct wireless_dev *wdev = dev->ieee80211_ptr;
1337
1338         switch (wdev->iftype) {
1339         case NL80211_IFTYPE_ADHOC:
1340                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1341         case NL80211_IFTYPE_STATION:
1342                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1343         case NL80211_IFTYPE_WDS:
1344                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1345         default:
1346                 return -EOPNOTSUPP;
1347         }
1348 }
1349 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1350
1351 int cfg80211_wext_siwessid(struct net_device *dev,
1352                            struct iw_request_info *info,
1353                            struct iw_point *data, char *ssid)
1354 {
1355         struct wireless_dev *wdev = dev->ieee80211_ptr;
1356
1357         switch (wdev->iftype) {
1358         case NL80211_IFTYPE_ADHOC:
1359                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1360         case NL80211_IFTYPE_STATION:
1361                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1362         default:
1363                 return -EOPNOTSUPP;
1364         }
1365 }
1366 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1367
1368 int cfg80211_wext_giwessid(struct net_device *dev,
1369                            struct iw_request_info *info,
1370                            struct iw_point *data, char *ssid)
1371 {
1372         struct wireless_dev *wdev = dev->ieee80211_ptr;
1373
1374         switch (wdev->iftype) {
1375         case NL80211_IFTYPE_ADHOC:
1376                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1377         case NL80211_IFTYPE_STATION:
1378                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1379         default:
1380                 return -EOPNOTSUPP;
1381         }
1382 }
1383 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1384
1385 static const iw_handler cfg80211_handlers[] = {
1386         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1387         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1388         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1389         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1390         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1391         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1392         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1393         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1394         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1395         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1396         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1397         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1398         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1399         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1400         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1401         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1402         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1403         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1404         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1405         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1406         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1407         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1408         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1409         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1410         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1411         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1412         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1413         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1414         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1415         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1416         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1417 };
1418
1419 const struct iw_handler_def cfg80211_wext_handler = {
1420         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1421         .standard               = cfg80211_handlers,
1422         .get_wireless_stats = cfg80211_wireless_stats,
1423 };