wireless extensions: fix kernel heap content leak
[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 <linux/slab.h>
16 #include <net/iw_handler.h>
17 #include <net/cfg80211.h>
18 #include "wext-compat.h"
19 #include "core.h"
20
21 int cfg80211_wext_giwname(struct net_device *dev,
22                           struct iw_request_info *info,
23                           char *name, char *extra)
24 {
25         struct wireless_dev *wdev = dev->ieee80211_ptr;
26         struct ieee80211_supported_band *sband;
27         bool is_ht = false, is_a = false, is_b = false, is_g = false;
28
29         if (!wdev)
30                 return -EOPNOTSUPP;
31
32         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
33         if (sband) {
34                 is_a = true;
35                 is_ht |= sband->ht_cap.ht_supported;
36         }
37
38         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
39         if (sband) {
40                 int i;
41                 /* Check for mandatory rates */
42                 for (i = 0; i < sband->n_bitrates; i++) {
43                         if (sband->bitrates[i].bitrate == 10)
44                                 is_b = true;
45                         if (sband->bitrates[i].bitrate == 60)
46                                 is_g = true;
47                 }
48                 is_ht |= sband->ht_cap.ht_supported;
49         }
50
51         strcpy(name, "IEEE 802.11");
52         if (is_a)
53                 strcat(name, "a");
54         if (is_b)
55                 strcat(name, "b");
56         if (is_g)
57                 strcat(name, "g");
58         if (is_ht)
59                 strcat(name, "n");
60
61         return 0;
62 }
63 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
64
65 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
66                           u32 *mode, char *extra)
67 {
68         struct wireless_dev *wdev = dev->ieee80211_ptr;
69         struct cfg80211_registered_device *rdev;
70         struct vif_params vifparams;
71         enum nl80211_iftype type;
72         int ret;
73
74         rdev = wiphy_to_dev(wdev->wiphy);
75
76         switch (*mode) {
77         case IW_MODE_INFRA:
78                 type = NL80211_IFTYPE_STATION;
79                 break;
80         case IW_MODE_ADHOC:
81                 type = NL80211_IFTYPE_ADHOC;
82                 break;
83         case IW_MODE_REPEAT:
84                 type = NL80211_IFTYPE_WDS;
85                 break;
86         case IW_MODE_MONITOR:
87                 type = NL80211_IFTYPE_MONITOR;
88                 break;
89         default:
90                 return -EINVAL;
91         }
92
93         if (type == wdev->iftype)
94                 return 0;
95
96         memset(&vifparams, 0, sizeof(vifparams));
97
98         cfg80211_lock_rdev(rdev);
99         ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
100         cfg80211_unlock_rdev(rdev);
101
102         return ret;
103 }
104 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
105
106 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
107                           u32 *mode, char *extra)
108 {
109         struct wireless_dev *wdev = dev->ieee80211_ptr;
110
111         if (!wdev)
112                 return -EOPNOTSUPP;
113
114         switch (wdev->iftype) {
115         case NL80211_IFTYPE_AP:
116                 *mode = IW_MODE_MASTER;
117                 break;
118         case NL80211_IFTYPE_STATION:
119                 *mode = IW_MODE_INFRA;
120                 break;
121         case NL80211_IFTYPE_ADHOC:
122                 *mode = IW_MODE_ADHOC;
123                 break;
124         case NL80211_IFTYPE_MONITOR:
125                 *mode = IW_MODE_MONITOR;
126                 break;
127         case NL80211_IFTYPE_WDS:
128                 *mode = IW_MODE_REPEAT;
129                 break;
130         case NL80211_IFTYPE_AP_VLAN:
131                 *mode = IW_MODE_SECOND;         /* FIXME */
132                 break;
133         default:
134                 *mode = IW_MODE_AUTO;
135                 break;
136         }
137         return 0;
138 }
139 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
140
141
142 int cfg80211_wext_giwrange(struct net_device *dev,
143                            struct iw_request_info *info,
144                            struct iw_point *data, char *extra)
145 {
146         struct wireless_dev *wdev = dev->ieee80211_ptr;
147         struct iw_range *range = (struct iw_range *) extra;
148         enum ieee80211_band band;
149         int i, c = 0;
150
151         if (!wdev)
152                 return -EOPNOTSUPP;
153
154         data->length = sizeof(struct iw_range);
155         memset(range, 0, sizeof(struct iw_range));
156
157         range->we_version_compiled = WIRELESS_EXT;
158         range->we_version_source = 21;
159         range->retry_capa = IW_RETRY_LIMIT;
160         range->retry_flags = IW_RETRY_LIMIT;
161         range->min_retry = 0;
162         range->max_retry = 255;
163         range->min_rts = 0;
164         range->max_rts = 2347;
165         range->min_frag = 256;
166         range->max_frag = 2346;
167
168         range->max_encoding_tokens = 4;
169
170         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
171
172         switch (wdev->wiphy->signal_type) {
173         case CFG80211_SIGNAL_TYPE_NONE:
174                 break;
175         case CFG80211_SIGNAL_TYPE_MBM:
176                 range->max_qual.level = -110;
177                 range->max_qual.qual = 70;
178                 range->avg_qual.qual = 35;
179                 range->max_qual.updated |= IW_QUAL_DBM;
180                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
181                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
182                 break;
183         case CFG80211_SIGNAL_TYPE_UNSPEC:
184                 range->max_qual.level = 100;
185                 range->max_qual.qual = 100;
186                 range->avg_qual.qual = 50;
187                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
188                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
189                 break;
190         }
191
192         range->avg_qual.level = range->max_qual.level / 2;
193         range->avg_qual.noise = range->max_qual.noise / 2;
194         range->avg_qual.updated = range->max_qual.updated;
195
196         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
197                 switch (wdev->wiphy->cipher_suites[i]) {
198                 case WLAN_CIPHER_SUITE_TKIP:
199                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
200                                             IW_ENC_CAPA_WPA);
201                         break;
202
203                 case WLAN_CIPHER_SUITE_CCMP:
204                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
205                                             IW_ENC_CAPA_WPA2);
206                         break;
207
208                 case WLAN_CIPHER_SUITE_WEP40:
209                         range->encoding_size[range->num_encoding_sizes++] =
210                                 WLAN_KEY_LEN_WEP40;
211                         break;
212
213                 case WLAN_CIPHER_SUITE_WEP104:
214                         range->encoding_size[range->num_encoding_sizes++] =
215                                 WLAN_KEY_LEN_WEP104;
216                         break;
217                 }
218         }
219
220         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
221                 struct ieee80211_supported_band *sband;
222
223                 sband = wdev->wiphy->bands[band];
224
225                 if (!sband)
226                         continue;
227
228                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
229                         struct ieee80211_channel *chan = &sband->channels[i];
230
231                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
232                                 range->freq[c].i =
233                                         ieee80211_frequency_to_channel(
234                                                 chan->center_freq);
235                                 range->freq[c].m = chan->center_freq;
236                                 range->freq[c].e = 6;
237                                 c++;
238                         }
239                 }
240         }
241         range->num_channels = c;
242         range->num_frequency = c;
243
244         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
245         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
246         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
247
248         if (wdev->wiphy->max_scan_ssids > 0)
249                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
250
251         return 0;
252 }
253 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
254
255
256 /**
257  * cfg80211_wext_freq - get wext frequency for non-"auto"
258  * @wiphy: the wiphy
259  * @freq: the wext freq encoding
260  *
261  * Returns a frequency, or a negative error code, or 0 for auto.
262  */
263 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
264 {
265         /*
266          * Parse frequency - return 0 for auto and
267          * -EINVAL for impossible things.
268          */
269         if (freq->e == 0) {
270                 if (freq->m < 0)
271                         return 0;
272                 return ieee80211_channel_to_frequency(freq->m);
273         } else {
274                 int i, div = 1000000;
275                 for (i = 0; i < freq->e; i++)
276                         div /= 10;
277                 if (div <= 0)
278                         return -EINVAL;
279                 return freq->m / div;
280         }
281 }
282
283 int cfg80211_wext_siwrts(struct net_device *dev,
284                          struct iw_request_info *info,
285                          struct iw_param *rts, char *extra)
286 {
287         struct wireless_dev *wdev = dev->ieee80211_ptr;
288         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
289         u32 orts = wdev->wiphy->rts_threshold;
290         int err;
291
292         if (rts->disabled || !rts->fixed)
293                 wdev->wiphy->rts_threshold = (u32) -1;
294         else if (rts->value < 0)
295                 return -EINVAL;
296         else
297                 wdev->wiphy->rts_threshold = rts->value;
298
299         err = rdev->ops->set_wiphy_params(wdev->wiphy,
300                                           WIPHY_PARAM_RTS_THRESHOLD);
301         if (err)
302                 wdev->wiphy->rts_threshold = orts;
303
304         return err;
305 }
306 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
307
308 int cfg80211_wext_giwrts(struct net_device *dev,
309                          struct iw_request_info *info,
310                          struct iw_param *rts, char *extra)
311 {
312         struct wireless_dev *wdev = dev->ieee80211_ptr;
313
314         rts->value = wdev->wiphy->rts_threshold;
315         rts->disabled = rts->value == (u32) -1;
316         rts->fixed = 1;
317
318         return 0;
319 }
320 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
321
322 int cfg80211_wext_siwfrag(struct net_device *dev,
323                           struct iw_request_info *info,
324                           struct iw_param *frag, char *extra)
325 {
326         struct wireless_dev *wdev = dev->ieee80211_ptr;
327         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
328         u32 ofrag = wdev->wiphy->frag_threshold;
329         int err;
330
331         if (frag->disabled || !frag->fixed)
332                 wdev->wiphy->frag_threshold = (u32) -1;
333         else if (frag->value < 256)
334                 return -EINVAL;
335         else {
336                 /* Fragment length must be even, so strip LSB. */
337                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
338         }
339
340         err = rdev->ops->set_wiphy_params(wdev->wiphy,
341                                           WIPHY_PARAM_FRAG_THRESHOLD);
342         if (err)
343                 wdev->wiphy->frag_threshold = ofrag;
344
345         return err;
346 }
347 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
348
349 int cfg80211_wext_giwfrag(struct net_device *dev,
350                           struct iw_request_info *info,
351                           struct iw_param *frag, char *extra)
352 {
353         struct wireless_dev *wdev = dev->ieee80211_ptr;
354
355         frag->value = wdev->wiphy->frag_threshold;
356         frag->disabled = frag->value == (u32) -1;
357         frag->fixed = 1;
358
359         return 0;
360 }
361 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
362
363 int cfg80211_wext_siwretry(struct net_device *dev,
364                            struct iw_request_info *info,
365                            struct iw_param *retry, char *extra)
366 {
367         struct wireless_dev *wdev = dev->ieee80211_ptr;
368         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
369         u32 changed = 0;
370         u8 olong = wdev->wiphy->retry_long;
371         u8 oshort = wdev->wiphy->retry_short;
372         int err;
373
374         if (retry->disabled ||
375             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
376                 return -EINVAL;
377
378         if (retry->flags & IW_RETRY_LONG) {
379                 wdev->wiphy->retry_long = retry->value;
380                 changed |= WIPHY_PARAM_RETRY_LONG;
381         } else if (retry->flags & IW_RETRY_SHORT) {
382                 wdev->wiphy->retry_short = retry->value;
383                 changed |= WIPHY_PARAM_RETRY_SHORT;
384         } else {
385                 wdev->wiphy->retry_short = retry->value;
386                 wdev->wiphy->retry_long = retry->value;
387                 changed |= WIPHY_PARAM_RETRY_LONG;
388                 changed |= WIPHY_PARAM_RETRY_SHORT;
389         }
390
391         if (!changed)
392                 return 0;
393
394         err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
395         if (err) {
396                 wdev->wiphy->retry_short = oshort;
397                 wdev->wiphy->retry_long = olong;
398         }
399
400         return err;
401 }
402 EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
403
404 int cfg80211_wext_giwretry(struct net_device *dev,
405                            struct iw_request_info *info,
406                            struct iw_param *retry, char *extra)
407 {
408         struct wireless_dev *wdev = dev->ieee80211_ptr;
409
410         retry->disabled = 0;
411
412         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
413                 /*
414                  * First return short value, iwconfig will ask long value
415                  * later if needed
416                  */
417                 retry->flags |= IW_RETRY_LIMIT;
418                 retry->value = wdev->wiphy->retry_short;
419                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
420                         retry->flags |= IW_RETRY_LONG;
421
422                 return 0;
423         }
424
425         if (retry->flags & IW_RETRY_LONG) {
426                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
427                 retry->value = wdev->wiphy->retry_long;
428         }
429
430         return 0;
431 }
432 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
433
434 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
435                                      struct net_device *dev, const u8 *addr,
436                                      bool remove, bool tx_key, int idx,
437                                      struct key_params *params)
438 {
439         struct wireless_dev *wdev = dev->ieee80211_ptr;
440         int err, i;
441         bool rejoin = false;
442
443         if (!wdev->wext.keys) {
444                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
445                                               GFP_KERNEL);
446                 if (!wdev->wext.keys)
447                         return -ENOMEM;
448                 for (i = 0; i < 6; i++)
449                         wdev->wext.keys->params[i].key =
450                                 wdev->wext.keys->data[i];
451         }
452
453         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
454             wdev->iftype != NL80211_IFTYPE_STATION)
455                 return -EOPNOTSUPP;
456
457         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
458                 if (!wdev->current_bss)
459                         return -ENOLINK;
460
461                 if (!rdev->ops->set_default_mgmt_key)
462                         return -EOPNOTSUPP;
463
464                 if (idx < 4 || idx > 5)
465                         return -EINVAL;
466         } else if (idx < 0 || idx > 3)
467                 return -EINVAL;
468
469         if (remove) {
470                 err = 0;
471                 if (wdev->current_bss) {
472                         /*
473                          * If removing the current TX key, we will need to
474                          * join a new IBSS without the privacy bit clear.
475                          */
476                         if (idx == wdev->wext.default_key &&
477                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
478                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
479                                 rejoin = true;
480                         }
481                         err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
482                 }
483                 wdev->wext.connect.privacy = false;
484                 /*
485                  * Applications using wireless extensions expect to be
486                  * able to delete keys that don't exist, so allow that.
487                  */
488                 if (err == -ENOENT)
489                         err = 0;
490                 if (!err) {
491                         if (!addr) {
492                                 wdev->wext.keys->params[idx].key_len = 0;
493                                 wdev->wext.keys->params[idx].cipher = 0;
494                         }
495                         if (idx == wdev->wext.default_key)
496                                 wdev->wext.default_key = -1;
497                         else if (idx == wdev->wext.default_mgmt_key)
498                                 wdev->wext.default_mgmt_key = -1;
499                 }
500
501                 if (!err && rejoin)
502                         err = cfg80211_ibss_wext_join(rdev, wdev);
503
504                 return err;
505         }
506
507         if (addr)
508                 tx_key = false;
509
510         if (cfg80211_validate_key_settings(rdev, params, idx, addr))
511                 return -EINVAL;
512
513         err = 0;
514         if (wdev->current_bss)
515                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
516         if (err)
517                 return err;
518
519         if (!addr) {
520                 wdev->wext.keys->params[idx] = *params;
521                 memcpy(wdev->wext.keys->data[idx],
522                         params->key, params->key_len);
523                 wdev->wext.keys->params[idx].key =
524                         wdev->wext.keys->data[idx];
525         }
526
527         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
528              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
529             (tx_key || (!addr && wdev->wext.default_key == -1))) {
530                 if (wdev->current_bss) {
531                         /*
532                          * If we are getting a new TX key from not having
533                          * had one before we need to join a new IBSS with
534                          * the privacy bit set.
535                          */
536                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
537                             wdev->wext.default_key == -1) {
538                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
539                                 rejoin = true;
540                         }
541                         err = rdev->ops->set_default_key(&rdev->wiphy,
542                                                          dev, idx);
543                 }
544                 if (!err) {
545                         wdev->wext.default_key = idx;
546                         if (rejoin)
547                                 err = cfg80211_ibss_wext_join(rdev, wdev);
548                 }
549                 return err;
550         }
551
552         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
553             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
554                 if (wdev->current_bss)
555                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
556                                                               dev, idx);
557                 if (!err)
558                         wdev->wext.default_mgmt_key = idx;
559                 return err;
560         }
561
562         return 0;
563 }
564
565 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
566                                    struct net_device *dev, const u8 *addr,
567                                    bool remove, bool tx_key, int idx,
568                                    struct key_params *params)
569 {
570         int err;
571
572         /* devlist mutex needed for possible IBSS re-join */
573         mutex_lock(&rdev->devlist_mtx);
574         wdev_lock(dev->ieee80211_ptr);
575         err = __cfg80211_set_encryption(rdev, dev, addr, remove,
576                                         tx_key, idx, params);
577         wdev_unlock(dev->ieee80211_ptr);
578         mutex_unlock(&rdev->devlist_mtx);
579
580         return err;
581 }
582
583 int cfg80211_wext_siwencode(struct net_device *dev,
584                             struct iw_request_info *info,
585                             struct iw_point *erq, char *keybuf)
586 {
587         struct wireless_dev *wdev = dev->ieee80211_ptr;
588         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
589         int idx, err;
590         bool remove = false;
591         struct key_params params;
592
593         if (wdev->iftype != NL80211_IFTYPE_STATION &&
594             wdev->iftype != NL80211_IFTYPE_ADHOC)
595                 return -EOPNOTSUPP;
596
597         /* no use -- only MFP (set_default_mgmt_key) is optional */
598         if (!rdev->ops->del_key ||
599             !rdev->ops->add_key ||
600             !rdev->ops->set_default_key)
601                 return -EOPNOTSUPP;
602
603         idx = erq->flags & IW_ENCODE_INDEX;
604         if (idx == 0) {
605                 idx = wdev->wext.default_key;
606                 if (idx < 0)
607                         idx = 0;
608         } else if (idx < 1 || idx > 4)
609                 return -EINVAL;
610         else
611                 idx--;
612
613         if (erq->flags & IW_ENCODE_DISABLED)
614                 remove = true;
615         else if (erq->length == 0) {
616                 /* No key data - just set the default TX key index */
617                 err = 0;
618                 wdev_lock(wdev);
619                 if (wdev->current_bss)
620                         err = rdev->ops->set_default_key(&rdev->wiphy,
621                                                          dev, idx);
622                 if (!err)
623                         wdev->wext.default_key = idx;
624                 wdev_unlock(wdev);
625                 return err;
626         }
627
628         memset(&params, 0, sizeof(params));
629         params.key = keybuf;
630         params.key_len = erq->length;
631         if (erq->length == 5)
632                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
633         else if (erq->length == 13)
634                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
635         else if (!remove)
636                 return -EINVAL;
637
638         return cfg80211_set_encryption(rdev, dev, NULL, remove,
639                                        wdev->wext.default_key == -1,
640                                        idx, &params);
641 }
642 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
643
644 int cfg80211_wext_siwencodeext(struct net_device *dev,
645                                struct iw_request_info *info,
646                                struct iw_point *erq, char *extra)
647 {
648         struct wireless_dev *wdev = dev->ieee80211_ptr;
649         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
650         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
651         const u8 *addr;
652         int idx;
653         bool remove = false;
654         struct key_params params;
655         u32 cipher;
656
657         if (wdev->iftype != NL80211_IFTYPE_STATION &&
658             wdev->iftype != NL80211_IFTYPE_ADHOC)
659                 return -EOPNOTSUPP;
660
661         /* no use -- only MFP (set_default_mgmt_key) is optional */
662         if (!rdev->ops->del_key ||
663             !rdev->ops->add_key ||
664             !rdev->ops->set_default_key)
665                 return -EOPNOTSUPP;
666
667         switch (ext->alg) {
668         case IW_ENCODE_ALG_NONE:
669                 remove = true;
670                 cipher = 0;
671                 break;
672         case IW_ENCODE_ALG_WEP:
673                 if (ext->key_len == 5)
674                         cipher = WLAN_CIPHER_SUITE_WEP40;
675                 else if (ext->key_len == 13)
676                         cipher = WLAN_CIPHER_SUITE_WEP104;
677                 else
678                         return -EINVAL;
679                 break;
680         case IW_ENCODE_ALG_TKIP:
681                 cipher = WLAN_CIPHER_SUITE_TKIP;
682                 break;
683         case IW_ENCODE_ALG_CCMP:
684                 cipher = WLAN_CIPHER_SUITE_CCMP;
685                 break;
686         case IW_ENCODE_ALG_AES_CMAC:
687                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
688                 break;
689         default:
690                 return -EOPNOTSUPP;
691         }
692
693         if (erq->flags & IW_ENCODE_DISABLED)
694                 remove = true;
695
696         idx = erq->flags & IW_ENCODE_INDEX;
697         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
698                 if (idx < 4 || idx > 5) {
699                         idx = wdev->wext.default_mgmt_key;
700                         if (idx < 0)
701                                 return -EINVAL;
702                 } else
703                         idx--;
704         } else {
705                 if (idx < 1 || idx > 4) {
706                         idx = wdev->wext.default_key;
707                         if (idx < 0)
708                                 return -EINVAL;
709                 } else
710                         idx--;
711         }
712
713         addr = ext->addr.sa_data;
714         if (is_broadcast_ether_addr(addr))
715                 addr = NULL;
716
717         memset(&params, 0, sizeof(params));
718         params.key = ext->key;
719         params.key_len = ext->key_len;
720         params.cipher = cipher;
721
722         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
723                 params.seq = ext->rx_seq;
724                 params.seq_len = 6;
725         }
726
727         return cfg80211_set_encryption(
728                         rdev, dev, addr, remove,
729                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
730                         idx, &params);
731 }
732 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
733
734 int cfg80211_wext_giwencode(struct net_device *dev,
735                             struct iw_request_info *info,
736                             struct iw_point *erq, char *keybuf)
737 {
738         struct wireless_dev *wdev = dev->ieee80211_ptr;
739         int idx;
740
741         if (wdev->iftype != NL80211_IFTYPE_STATION &&
742             wdev->iftype != NL80211_IFTYPE_ADHOC)
743                 return -EOPNOTSUPP;
744
745         idx = erq->flags & IW_ENCODE_INDEX;
746         if (idx == 0) {
747                 idx = wdev->wext.default_key;
748                 if (idx < 0)
749                         idx = 0;
750         } else if (idx < 1 || idx > 4)
751                 return -EINVAL;
752         else
753                 idx--;
754
755         erq->flags = idx + 1;
756
757         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
758                 erq->flags |= IW_ENCODE_DISABLED;
759                 erq->length = 0;
760                 return 0;
761         }
762
763         erq->length = min_t(size_t, erq->length,
764                             wdev->wext.keys->params[idx].key_len);
765         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
766         erq->flags |= IW_ENCODE_ENABLED;
767
768         return 0;
769 }
770 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
771
772 int cfg80211_wext_siwfreq(struct net_device *dev,
773                           struct iw_request_info *info,
774                           struct iw_freq *wextfreq, char *extra)
775 {
776         struct wireless_dev *wdev = dev->ieee80211_ptr;
777         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
778         int freq, err;
779
780         switch (wdev->iftype) {
781         case NL80211_IFTYPE_STATION:
782                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
783         case NL80211_IFTYPE_ADHOC:
784                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
785         case NL80211_IFTYPE_MONITOR:
786         case NL80211_IFTYPE_WDS:
787         case NL80211_IFTYPE_MESH_POINT:
788                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
789                 if (freq < 0)
790                         return freq;
791                 if (freq == 0)
792                         return -EINVAL;
793                 wdev_lock(wdev);
794                 mutex_lock(&rdev->devlist_mtx);
795                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
796                 mutex_unlock(&rdev->devlist_mtx);
797                 wdev_unlock(wdev);
798                 return err;
799         default:
800                 return -EOPNOTSUPP;
801         }
802 }
803 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
804
805 int cfg80211_wext_giwfreq(struct net_device *dev,
806                           struct iw_request_info *info,
807                           struct iw_freq *freq, char *extra)
808 {
809         struct wireless_dev *wdev = dev->ieee80211_ptr;
810
811         switch (wdev->iftype) {
812         case NL80211_IFTYPE_STATION:
813                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
814         case NL80211_IFTYPE_ADHOC:
815                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
816         default:
817                 if (!wdev->channel)
818                         return -EINVAL;
819                 freq->m = wdev->channel->center_freq;
820                 freq->e = 6;
821                 return 0;
822         }
823 }
824 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
825
826 int cfg80211_wext_siwtxpower(struct net_device *dev,
827                              struct iw_request_info *info,
828                              union iwreq_data *data, char *extra)
829 {
830         struct wireless_dev *wdev = dev->ieee80211_ptr;
831         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
832         enum nl80211_tx_power_setting type;
833         int dbm = 0;
834
835         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
836                 return -EINVAL;
837         if (data->txpower.flags & IW_TXPOW_RANGE)
838                 return -EINVAL;
839
840         if (!rdev->ops->set_tx_power)
841                 return -EOPNOTSUPP;
842
843         /* only change when not disabling */
844         if (!data->txpower.disabled) {
845                 rfkill_set_sw_state(rdev->rfkill, false);
846
847                 if (data->txpower.fixed) {
848                         /*
849                          * wext doesn't support negative values, see
850                          * below where it's for automatic
851                          */
852                         if (data->txpower.value < 0)
853                                 return -EINVAL;
854                         dbm = data->txpower.value;
855                         type = NL80211_TX_POWER_FIXED;
856                         /* TODO: do regulatory check! */
857                 } else {
858                         /*
859                          * Automatic power level setting, max being the value
860                          * passed in from userland.
861                          */
862                         if (data->txpower.value < 0) {
863                                 type = NL80211_TX_POWER_AUTOMATIC;
864                         } else {
865                                 dbm = data->txpower.value;
866                                 type = NL80211_TX_POWER_LIMITED;
867                         }
868                 }
869         } else {
870                 rfkill_set_sw_state(rdev->rfkill, true);
871                 schedule_work(&rdev->rfkill_sync);
872                 return 0;
873         }
874
875         return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
876 }
877 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
878
879 int cfg80211_wext_giwtxpower(struct net_device *dev,
880                              struct iw_request_info *info,
881                              union iwreq_data *data, char *extra)
882 {
883         struct wireless_dev *wdev = dev->ieee80211_ptr;
884         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
885         int err, val;
886
887         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
888                 return -EINVAL;
889         if (data->txpower.flags & IW_TXPOW_RANGE)
890                 return -EINVAL;
891
892         if (!rdev->ops->get_tx_power)
893                 return -EOPNOTSUPP;
894
895         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
896         if (err)
897                 return err;
898
899         /* well... oh well */
900         data->txpower.fixed = 1;
901         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
902         data->txpower.value = val;
903         data->txpower.flags = IW_TXPOW_DBM;
904
905         return 0;
906 }
907 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
908
909 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
910                                  s32 auth_alg)
911 {
912         int nr_alg = 0;
913
914         if (!auth_alg)
915                 return -EINVAL;
916
917         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
918                          IW_AUTH_ALG_SHARED_KEY |
919                          IW_AUTH_ALG_LEAP))
920                 return -EINVAL;
921
922         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
923                 nr_alg++;
924                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
925         }
926
927         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
928                 nr_alg++;
929                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
930         }
931
932         if (auth_alg & IW_AUTH_ALG_LEAP) {
933                 nr_alg++;
934                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
935         }
936
937         if (nr_alg > 1)
938                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
939
940         return 0;
941 }
942
943 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
944 {
945         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
946                              IW_AUTH_WPA_VERSION_WPA2|
947                              IW_AUTH_WPA_VERSION_DISABLED))
948                 return -EINVAL;
949
950         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
951             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
952                              IW_AUTH_WPA_VERSION_WPA2)))
953                 return -EINVAL;
954
955         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
956                 wdev->wext.connect.crypto.wpa_versions &=
957                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
958
959         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
960                 wdev->wext.connect.crypto.wpa_versions |=
961                         NL80211_WPA_VERSION_1;
962
963         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
964                 wdev->wext.connect.crypto.wpa_versions |=
965                         NL80211_WPA_VERSION_2;
966
967         return 0;
968 }
969
970 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
971 {
972         if (cipher & IW_AUTH_CIPHER_WEP40)
973                 wdev->wext.connect.crypto.cipher_group =
974                         WLAN_CIPHER_SUITE_WEP40;
975         else if (cipher & IW_AUTH_CIPHER_WEP104)
976                 wdev->wext.connect.crypto.cipher_group =
977                         WLAN_CIPHER_SUITE_WEP104;
978         else if (cipher & IW_AUTH_CIPHER_TKIP)
979                 wdev->wext.connect.crypto.cipher_group =
980                         WLAN_CIPHER_SUITE_TKIP;
981         else if (cipher & IW_AUTH_CIPHER_CCMP)
982                 wdev->wext.connect.crypto.cipher_group =
983                         WLAN_CIPHER_SUITE_CCMP;
984         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
985                 wdev->wext.connect.crypto.cipher_group =
986                         WLAN_CIPHER_SUITE_AES_CMAC;
987         else if (cipher & IW_AUTH_CIPHER_NONE)
988                 wdev->wext.connect.crypto.cipher_group = 0;
989         else
990                 return -EINVAL;
991
992         return 0;
993 }
994
995 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
996 {
997         int nr_ciphers = 0;
998         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
999
1000         if (cipher & IW_AUTH_CIPHER_WEP40) {
1001                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1002                 nr_ciphers++;
1003         }
1004
1005         if (cipher & IW_AUTH_CIPHER_WEP104) {
1006                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1007                 nr_ciphers++;
1008         }
1009
1010         if (cipher & IW_AUTH_CIPHER_TKIP) {
1011                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1012                 nr_ciphers++;
1013         }
1014
1015         if (cipher & IW_AUTH_CIPHER_CCMP) {
1016                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1017                 nr_ciphers++;
1018         }
1019
1020         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1021                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1022                 nr_ciphers++;
1023         }
1024
1025         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1026
1027         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1028
1029         return 0;
1030 }
1031
1032
1033 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1034 {
1035         int nr_akm_suites = 0;
1036
1037         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1038                         IW_AUTH_KEY_MGMT_PSK))
1039                 return -EINVAL;
1040
1041         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1042                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1043                         WLAN_AKM_SUITE_8021X;
1044                 nr_akm_suites++;
1045         }
1046
1047         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1048                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1049                         WLAN_AKM_SUITE_PSK;
1050                 nr_akm_suites++;
1051         }
1052
1053         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1054
1055         return 0;
1056 }
1057
1058 int cfg80211_wext_siwauth(struct net_device *dev,
1059                           struct iw_request_info *info,
1060                           struct iw_param *data, char *extra)
1061 {
1062         struct wireless_dev *wdev = dev->ieee80211_ptr;
1063
1064         if (wdev->iftype != NL80211_IFTYPE_STATION)
1065                 return -EOPNOTSUPP;
1066
1067         switch (data->flags & IW_AUTH_INDEX) {
1068         case IW_AUTH_PRIVACY_INVOKED:
1069                 wdev->wext.connect.privacy = data->value;
1070                 return 0;
1071         case IW_AUTH_WPA_VERSION:
1072                 return cfg80211_set_wpa_version(wdev, data->value);
1073         case IW_AUTH_CIPHER_GROUP:
1074                 return cfg80211_set_cipher_group(wdev, data->value);
1075         case IW_AUTH_KEY_MGMT:
1076                 return cfg80211_set_key_mgt(wdev, data->value);
1077         case IW_AUTH_CIPHER_PAIRWISE:
1078                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1079         case IW_AUTH_80211_AUTH_ALG:
1080                 return cfg80211_set_auth_alg(wdev, data->value);
1081         case IW_AUTH_WPA_ENABLED:
1082         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1083         case IW_AUTH_DROP_UNENCRYPTED:
1084         case IW_AUTH_MFP:
1085                 return 0;
1086         default:
1087                 return -EOPNOTSUPP;
1088         }
1089 }
1090 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1091
1092 int cfg80211_wext_giwauth(struct net_device *dev,
1093                           struct iw_request_info *info,
1094                           struct iw_param *data, char *extra)
1095 {
1096         /* XXX: what do we need? */
1097
1098         return -EOPNOTSUPP;
1099 }
1100 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1101
1102 int cfg80211_wext_siwpower(struct net_device *dev,
1103                            struct iw_request_info *info,
1104                            struct iw_param *wrq, char *extra)
1105 {
1106         struct wireless_dev *wdev = dev->ieee80211_ptr;
1107         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1108         bool ps = wdev->ps;
1109         int timeout = wdev->ps_timeout;
1110         int err;
1111
1112         if (wdev->iftype != NL80211_IFTYPE_STATION)
1113                 return -EINVAL;
1114
1115         if (!rdev->ops->set_power_mgmt)
1116                 return -EOPNOTSUPP;
1117
1118         if (wrq->disabled) {
1119                 ps = false;
1120         } else {
1121                 switch (wrq->flags & IW_POWER_MODE) {
1122                 case IW_POWER_ON:       /* If not specified */
1123                 case IW_POWER_MODE:     /* If set all mask */
1124                 case IW_POWER_ALL_R:    /* If explicitely state all */
1125                         ps = true;
1126                         break;
1127                 default:                /* Otherwise we ignore */
1128                         return -EINVAL;
1129                 }
1130
1131                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1132                         return -EINVAL;
1133
1134                 if (wrq->flags & IW_POWER_TIMEOUT)
1135                         timeout = wrq->value / 1000;
1136         }
1137
1138         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1139         if (err)
1140                 return err;
1141
1142         wdev->ps = ps;
1143         wdev->ps_timeout = timeout;
1144
1145         return 0;
1146
1147 }
1148 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1149
1150 int cfg80211_wext_giwpower(struct net_device *dev,
1151                            struct iw_request_info *info,
1152                            struct iw_param *wrq, char *extra)
1153 {
1154         struct wireless_dev *wdev = dev->ieee80211_ptr;
1155
1156         wrq->disabled = !wdev->ps;
1157
1158         return 0;
1159 }
1160 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1161
1162 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1163                                    struct iw_request_info *info,
1164                                    struct sockaddr *addr, char *extra)
1165 {
1166         struct wireless_dev *wdev = dev->ieee80211_ptr;
1167         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1168         int err;
1169
1170         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1171                 return -EINVAL;
1172
1173         if (addr->sa_family != ARPHRD_ETHER)
1174                 return -EINVAL;
1175
1176         if (netif_running(dev))
1177                 return -EBUSY;
1178
1179         if (!rdev->ops->set_wds_peer)
1180                 return -EOPNOTSUPP;
1181
1182         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1183         if (err)
1184                 return err;
1185
1186         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1187
1188         return 0;
1189 }
1190
1191 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1192                                    struct iw_request_info *info,
1193                                    struct sockaddr *addr, char *extra)
1194 {
1195         struct wireless_dev *wdev = dev->ieee80211_ptr;
1196
1197         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1198                 return -EINVAL;
1199
1200         addr->sa_family = ARPHRD_ETHER;
1201         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1202
1203         return 0;
1204 }
1205
1206 int cfg80211_wext_siwrate(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         struct cfg80211_bitrate_mask mask;
1213         u32 fixed, maxrate;
1214         struct ieee80211_supported_band *sband;
1215         int band, ridx;
1216         bool match = false;
1217
1218         if (!rdev->ops->set_bitrate_mask)
1219                 return -EOPNOTSUPP;
1220
1221         memset(&mask, 0, sizeof(mask));
1222         fixed = 0;
1223         maxrate = (u32)-1;
1224
1225         if (rate->value < 0) {
1226                 /* nothing */
1227         } else if (rate->fixed) {
1228                 fixed = rate->value / 100000;
1229         } else {
1230                 maxrate = rate->value / 100000;
1231         }
1232
1233         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1234                 sband = wdev->wiphy->bands[band];
1235                 if (sband == NULL)
1236                         continue;
1237                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1238                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1239                         if (fixed == srate->bitrate) {
1240                                 mask.control[band].legacy = 1 << ridx;
1241                                 match = true;
1242                                 break;
1243                         }
1244                         if (srate->bitrate <= maxrate) {
1245                                 mask.control[band].legacy |= 1 << ridx;
1246                                 match = true;
1247                         }
1248                 }
1249         }
1250
1251         if (!match)
1252                 return -EINVAL;
1253
1254         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1255 }
1256 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1257
1258 int cfg80211_wext_giwrate(struct net_device *dev,
1259                           struct iw_request_info *info,
1260                           struct iw_param *rate, char *extra)
1261 {
1262         struct wireless_dev *wdev = dev->ieee80211_ptr;
1263         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1264         /* we are under RTNL - globally locked - so can use a static struct */
1265         static struct station_info sinfo;
1266         u8 addr[ETH_ALEN];
1267         int err;
1268
1269         if (wdev->iftype != NL80211_IFTYPE_STATION)
1270                 return -EOPNOTSUPP;
1271
1272         if (!rdev->ops->get_station)
1273                 return -EOPNOTSUPP;
1274
1275         err = 0;
1276         wdev_lock(wdev);
1277         if (wdev->current_bss)
1278                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1279         else
1280                 err = -EOPNOTSUPP;
1281         wdev_unlock(wdev);
1282         if (err)
1283                 return err;
1284
1285         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1286         if (err)
1287                 return err;
1288
1289         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1290                 return -EOPNOTSUPP;
1291
1292         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1293
1294         return 0;
1295 }
1296 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1297
1298 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1299 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1300 {
1301         struct wireless_dev *wdev = dev->ieee80211_ptr;
1302         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1303         /* we are under RTNL - globally locked - so can use static structs */
1304         static struct iw_statistics wstats;
1305         static struct station_info sinfo;
1306         u8 bssid[ETH_ALEN];
1307
1308         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1309                 return NULL;
1310
1311         if (!rdev->ops->get_station)
1312                 return NULL;
1313
1314         /* Grab BSSID of current BSS, if any */
1315         wdev_lock(wdev);
1316         if (!wdev->current_bss) {
1317                 wdev_unlock(wdev);
1318                 return NULL;
1319         }
1320         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1321         wdev_unlock(wdev);
1322
1323         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1324                 return NULL;
1325
1326         memset(&wstats, 0, sizeof(wstats));
1327
1328         switch (rdev->wiphy.signal_type) {
1329         case CFG80211_SIGNAL_TYPE_MBM:
1330                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1331                         int sig = sinfo.signal;
1332                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1333                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1334                         wstats.qual.updated |= IW_QUAL_DBM;
1335                         wstats.qual.level = sig;
1336                         if (sig < -110)
1337                                 sig = -110;
1338                         else if (sig > -40)
1339                                 sig = -40;
1340                         wstats.qual.qual = sig + 110;
1341                         break;
1342                 }
1343         case CFG80211_SIGNAL_TYPE_UNSPEC:
1344                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1345                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1346                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1347                         wstats.qual.level = sinfo.signal;
1348                         wstats.qual.qual = sinfo.signal;
1349                         break;
1350                 }
1351         default:
1352                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1353                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1354         }
1355
1356         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1357
1358         return &wstats;
1359 }
1360 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1361
1362 int cfg80211_wext_siwap(struct net_device *dev,
1363                         struct iw_request_info *info,
1364                         struct sockaddr *ap_addr, char *extra)
1365 {
1366         struct wireless_dev *wdev = dev->ieee80211_ptr;
1367
1368         switch (wdev->iftype) {
1369         case NL80211_IFTYPE_ADHOC:
1370                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1371         case NL80211_IFTYPE_STATION:
1372                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1373         case NL80211_IFTYPE_WDS:
1374                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1375         default:
1376                 return -EOPNOTSUPP;
1377         }
1378 }
1379 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1380
1381 int cfg80211_wext_giwap(struct net_device *dev,
1382                         struct iw_request_info *info,
1383                         struct sockaddr *ap_addr, char *extra)
1384 {
1385         struct wireless_dev *wdev = dev->ieee80211_ptr;
1386
1387         switch (wdev->iftype) {
1388         case NL80211_IFTYPE_ADHOC:
1389                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1390         case NL80211_IFTYPE_STATION:
1391                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1392         case NL80211_IFTYPE_WDS:
1393                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1394         default:
1395                 return -EOPNOTSUPP;
1396         }
1397 }
1398 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1399
1400 int cfg80211_wext_siwessid(struct net_device *dev,
1401                            struct iw_request_info *info,
1402                            struct iw_point *data, char *ssid)
1403 {
1404         struct wireless_dev *wdev = dev->ieee80211_ptr;
1405
1406         switch (wdev->iftype) {
1407         case NL80211_IFTYPE_ADHOC:
1408                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1409         case NL80211_IFTYPE_STATION:
1410                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1411         default:
1412                 return -EOPNOTSUPP;
1413         }
1414 }
1415 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1416
1417 int cfg80211_wext_giwessid(struct net_device *dev,
1418                            struct iw_request_info *info,
1419                            struct iw_point *data, char *ssid)
1420 {
1421         struct wireless_dev *wdev = dev->ieee80211_ptr;
1422
1423         data->flags = 0;
1424         data->length = 0;
1425
1426         switch (wdev->iftype) {
1427         case NL80211_IFTYPE_ADHOC:
1428                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1429         case NL80211_IFTYPE_STATION:
1430                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1431         default:
1432                 return -EOPNOTSUPP;
1433         }
1434 }
1435 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1436
1437 int cfg80211_wext_siwpmksa(struct net_device *dev,
1438                            struct iw_request_info *info,
1439                            struct iw_point *data, char *extra)
1440 {
1441         struct wireless_dev *wdev = dev->ieee80211_ptr;
1442         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1443         struct cfg80211_pmksa cfg_pmksa;
1444         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1445
1446         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1447
1448         if (wdev->iftype != NL80211_IFTYPE_STATION)
1449                 return -EINVAL;
1450
1451         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1452         cfg_pmksa.pmkid = pmksa->pmkid;
1453
1454         switch (pmksa->cmd) {
1455         case IW_PMKSA_ADD:
1456                 if (!rdev->ops->set_pmksa)
1457                         return -EOPNOTSUPP;
1458
1459                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1460
1461         case IW_PMKSA_REMOVE:
1462                 if (!rdev->ops->del_pmksa)
1463                         return -EOPNOTSUPP;
1464
1465                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1466
1467         case IW_PMKSA_FLUSH:
1468                 if (!rdev->ops->flush_pmksa)
1469                         return -EOPNOTSUPP;
1470
1471                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1472
1473         default:
1474                 return -EOPNOTSUPP;
1475         }
1476 }
1477 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa);
1478
1479 static const iw_handler cfg80211_handlers[] = {
1480         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1481         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1482         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1483         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1484         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1485         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1486         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1487         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1488         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1489         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1490         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1491         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1492         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1493         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1494         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1495         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1496         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1497         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1498         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1499         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1500         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1501         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1502         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1503         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1504         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1505         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1506         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1507         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1508         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1509         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1510         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1511         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1512 };
1513
1514 const struct iw_handler_def cfg80211_wext_handler = {
1515         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1516         .standard               = cfg80211_handlers,
1517         .get_wireless_stats = cfg80211_wireless_stats,
1518 };