Merge remote-tracking branch 'mac80211/master' into HEAD
[linux-3.10.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/export.h>
12 #include <linux/wireless.h>
13 #include <linux/nl80211.h>
14 #include <linux/if_arp.h>
15 #include <linux/etherdevice.h>
16 #include <linux/slab.h>
17 #include <net/iw_handler.h>
18 #include <net/cfg80211.h>
19 #include <net/cfg80211-wext.h>
20 #include "wext-compat.h"
21 #include "core.h"
22 #include "rdev-ops.h"
23
24 int cfg80211_wext_giwname(struct net_device *dev,
25                           struct iw_request_info *info,
26                           char *name, char *extra)
27 {
28         struct wireless_dev *wdev = dev->ieee80211_ptr;
29         struct ieee80211_supported_band *sband;
30         bool is_ht = false, is_a = false, is_b = false, is_g = false;
31
32         if (!wdev)
33                 return -EOPNOTSUPP;
34
35         sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
36         if (sband) {
37                 is_a = true;
38                 is_ht |= sband->ht_cap.ht_supported;
39         }
40
41         sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
42         if (sband) {
43                 int i;
44                 /* Check for mandatory rates */
45                 for (i = 0; i < sband->n_bitrates; i++) {
46                         if (sband->bitrates[i].bitrate == 10)
47                                 is_b = true;
48                         if (sband->bitrates[i].bitrate == 60)
49                                 is_g = true;
50                 }
51                 is_ht |= sband->ht_cap.ht_supported;
52         }
53
54         strcpy(name, "IEEE 802.11");
55         if (is_a)
56                 strcat(name, "a");
57         if (is_b)
58                 strcat(name, "b");
59         if (is_g)
60                 strcat(name, "g");
61         if (is_ht)
62                 strcat(name, "n");
63
64         return 0;
65 }
66 EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
67
68 int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
69                           u32 *mode, char *extra)
70 {
71         struct wireless_dev *wdev = dev->ieee80211_ptr;
72         struct cfg80211_registered_device *rdev;
73         struct vif_params vifparams;
74         enum nl80211_iftype type;
75         int ret;
76
77         rdev = wiphy_to_dev(wdev->wiphy);
78
79         switch (*mode) {
80         case IW_MODE_INFRA:
81                 type = NL80211_IFTYPE_STATION;
82                 break;
83         case IW_MODE_ADHOC:
84                 type = NL80211_IFTYPE_ADHOC;
85                 break;
86         case IW_MODE_REPEAT:
87                 type = NL80211_IFTYPE_WDS;
88                 break;
89         case IW_MODE_MONITOR:
90                 type = NL80211_IFTYPE_MONITOR;
91                 break;
92         default:
93                 return -EINVAL;
94         }
95
96         if (type == wdev->iftype)
97                 return 0;
98
99         memset(&vifparams, 0, sizeof(vifparams));
100
101         cfg80211_lock_rdev(rdev);
102         ret = cfg80211_change_iface(rdev, dev, type, NULL, &vifparams);
103         cfg80211_unlock_rdev(rdev);
104
105         return ret;
106 }
107 EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
108
109 int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
110                           u32 *mode, char *extra)
111 {
112         struct wireless_dev *wdev = dev->ieee80211_ptr;
113
114         if (!wdev)
115                 return -EOPNOTSUPP;
116
117         switch (wdev->iftype) {
118         case NL80211_IFTYPE_AP:
119                 *mode = IW_MODE_MASTER;
120                 break;
121         case NL80211_IFTYPE_STATION:
122                 *mode = IW_MODE_INFRA;
123                 break;
124         case NL80211_IFTYPE_ADHOC:
125                 *mode = IW_MODE_ADHOC;
126                 break;
127         case NL80211_IFTYPE_MONITOR:
128                 *mode = IW_MODE_MONITOR;
129                 break;
130         case NL80211_IFTYPE_WDS:
131                 *mode = IW_MODE_REPEAT;
132                 break;
133         case NL80211_IFTYPE_AP_VLAN:
134                 *mode = IW_MODE_SECOND;         /* FIXME */
135                 break;
136         default:
137                 *mode = IW_MODE_AUTO;
138                 break;
139         }
140         return 0;
141 }
142 EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
143
144
145 int cfg80211_wext_giwrange(struct net_device *dev,
146                            struct iw_request_info *info,
147                            struct iw_point *data, char *extra)
148 {
149         struct wireless_dev *wdev = dev->ieee80211_ptr;
150         struct iw_range *range = (struct iw_range *) extra;
151         enum ieee80211_band band;
152         int i, c = 0;
153
154         if (!wdev)
155                 return -EOPNOTSUPP;
156
157         data->length = sizeof(struct iw_range);
158         memset(range, 0, sizeof(struct iw_range));
159
160         range->we_version_compiled = WIRELESS_EXT;
161         range->we_version_source = 21;
162         range->retry_capa = IW_RETRY_LIMIT;
163         range->retry_flags = IW_RETRY_LIMIT;
164         range->min_retry = 0;
165         range->max_retry = 255;
166         range->min_rts = 0;
167         range->max_rts = 2347;
168         range->min_frag = 256;
169         range->max_frag = 2346;
170
171         range->max_encoding_tokens = 4;
172
173         range->max_qual.updated = IW_QUAL_NOISE_INVALID;
174
175         switch (wdev->wiphy->signal_type) {
176         case CFG80211_SIGNAL_TYPE_NONE:
177                 break;
178         case CFG80211_SIGNAL_TYPE_MBM:
179                 range->max_qual.level = (u8)-110;
180                 range->max_qual.qual = 70;
181                 range->avg_qual.qual = 35;
182                 range->max_qual.updated |= IW_QUAL_DBM;
183                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
184                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
185                 break;
186         case CFG80211_SIGNAL_TYPE_UNSPEC:
187                 range->max_qual.level = 100;
188                 range->max_qual.qual = 100;
189                 range->avg_qual.qual = 50;
190                 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
191                 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
192                 break;
193         }
194
195         range->avg_qual.level = range->max_qual.level / 2;
196         range->avg_qual.noise = range->max_qual.noise / 2;
197         range->avg_qual.updated = range->max_qual.updated;
198
199         for (i = 0; i < wdev->wiphy->n_cipher_suites; i++) {
200                 switch (wdev->wiphy->cipher_suites[i]) {
201                 case WLAN_CIPHER_SUITE_TKIP:
202                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
203                                             IW_ENC_CAPA_WPA);
204                         break;
205
206                 case WLAN_CIPHER_SUITE_CCMP:
207                         range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
208                                             IW_ENC_CAPA_WPA2);
209                         break;
210
211                 case WLAN_CIPHER_SUITE_WEP40:
212                         range->encoding_size[range->num_encoding_sizes++] =
213                                 WLAN_KEY_LEN_WEP40;
214                         break;
215
216                 case WLAN_CIPHER_SUITE_WEP104:
217                         range->encoding_size[range->num_encoding_sizes++] =
218                                 WLAN_KEY_LEN_WEP104;
219                         break;
220                 }
221         }
222
223         for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
224                 struct ieee80211_supported_band *sband;
225
226                 sband = wdev->wiphy->bands[band];
227
228                 if (!sband)
229                         continue;
230
231                 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
232                         struct ieee80211_channel *chan = &sband->channels[i];
233
234                         if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
235                                 range->freq[c].i =
236                                         ieee80211_frequency_to_channel(
237                                                 chan->center_freq);
238                                 range->freq[c].m = chan->center_freq;
239                                 range->freq[c].e = 6;
240                                 c++;
241                         }
242                 }
243         }
244         range->num_channels = c;
245         range->num_frequency = c;
246
247         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
248         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
249         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
250
251         if (wdev->wiphy->max_scan_ssids > 0)
252                 range->scan_capa |= IW_SCAN_CAPA_ESSID;
253
254         return 0;
255 }
256 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
257
258
259 /**
260  * cfg80211_wext_freq - get wext frequency for non-"auto"
261  * @wiphy: the wiphy
262  * @freq: the wext freq encoding
263  *
264  * Returns a frequency, or a negative error code, or 0 for auto.
265  */
266 int cfg80211_wext_freq(struct wiphy *wiphy, struct iw_freq *freq)
267 {
268         /*
269          * Parse frequency - return 0 for auto and
270          * -EINVAL for impossible things.
271          */
272         if (freq->e == 0) {
273                 enum ieee80211_band band = IEEE80211_BAND_2GHZ;
274                 if (freq->m < 0)
275                         return 0;
276                 if (freq->m > 14)
277                         band = IEEE80211_BAND_5GHZ;
278                 return ieee80211_channel_to_frequency(freq->m, band);
279         } else {
280                 int i, div = 1000000;
281                 for (i = 0; i < freq->e; i++)
282                         div /= 10;
283                 if (div <= 0)
284                         return -EINVAL;
285                 return freq->m / div;
286         }
287 }
288
289 int cfg80211_wext_siwrts(struct net_device *dev,
290                          struct iw_request_info *info,
291                          struct iw_param *rts, char *extra)
292 {
293         struct wireless_dev *wdev = dev->ieee80211_ptr;
294         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
295         u32 orts = wdev->wiphy->rts_threshold;
296         int err;
297
298         if (rts->disabled || !rts->fixed)
299                 wdev->wiphy->rts_threshold = (u32) -1;
300         else if (rts->value < 0)
301                 return -EINVAL;
302         else
303                 wdev->wiphy->rts_threshold = rts->value;
304
305         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_RTS_THRESHOLD);
306         if (err)
307                 wdev->wiphy->rts_threshold = orts;
308
309         return err;
310 }
311 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
312
313 int cfg80211_wext_giwrts(struct net_device *dev,
314                          struct iw_request_info *info,
315                          struct iw_param *rts, char *extra)
316 {
317         struct wireless_dev *wdev = dev->ieee80211_ptr;
318
319         rts->value = wdev->wiphy->rts_threshold;
320         rts->disabled = rts->value == (u32) -1;
321         rts->fixed = 1;
322
323         return 0;
324 }
325 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
326
327 int cfg80211_wext_siwfrag(struct net_device *dev,
328                           struct iw_request_info *info,
329                           struct iw_param *frag, char *extra)
330 {
331         struct wireless_dev *wdev = dev->ieee80211_ptr;
332         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
333         u32 ofrag = wdev->wiphy->frag_threshold;
334         int err;
335
336         if (frag->disabled || !frag->fixed)
337                 wdev->wiphy->frag_threshold = (u32) -1;
338         else if (frag->value < 256)
339                 return -EINVAL;
340         else {
341                 /* Fragment length must be even, so strip LSB. */
342                 wdev->wiphy->frag_threshold = frag->value & ~0x1;
343         }
344
345         err = rdev_set_wiphy_params(rdev, WIPHY_PARAM_FRAG_THRESHOLD);
346         if (err)
347                 wdev->wiphy->frag_threshold = ofrag;
348
349         return err;
350 }
351 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
352
353 int cfg80211_wext_giwfrag(struct net_device *dev,
354                           struct iw_request_info *info,
355                           struct iw_param *frag, char *extra)
356 {
357         struct wireless_dev *wdev = dev->ieee80211_ptr;
358
359         frag->value = wdev->wiphy->frag_threshold;
360         frag->disabled = frag->value == (u32) -1;
361         frag->fixed = 1;
362
363         return 0;
364 }
365 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
366
367 static int cfg80211_wext_siwretry(struct net_device *dev,
368                                   struct iw_request_info *info,
369                                   struct iw_param *retry, char *extra)
370 {
371         struct wireless_dev *wdev = dev->ieee80211_ptr;
372         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
373         u32 changed = 0;
374         u8 olong = wdev->wiphy->retry_long;
375         u8 oshort = wdev->wiphy->retry_short;
376         int err;
377
378         if (retry->disabled ||
379             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
380                 return -EINVAL;
381
382         if (retry->flags & IW_RETRY_LONG) {
383                 wdev->wiphy->retry_long = retry->value;
384                 changed |= WIPHY_PARAM_RETRY_LONG;
385         } else if (retry->flags & IW_RETRY_SHORT) {
386                 wdev->wiphy->retry_short = retry->value;
387                 changed |= WIPHY_PARAM_RETRY_SHORT;
388         } else {
389                 wdev->wiphy->retry_short = retry->value;
390                 wdev->wiphy->retry_long = retry->value;
391                 changed |= WIPHY_PARAM_RETRY_LONG;
392                 changed |= WIPHY_PARAM_RETRY_SHORT;
393         }
394
395         if (!changed)
396                 return 0;
397
398         err = rdev_set_wiphy_params(rdev, changed);
399         if (err) {
400                 wdev->wiphy->retry_short = oshort;
401                 wdev->wiphy->retry_long = olong;
402         }
403
404         return err;
405 }
406
407 int cfg80211_wext_giwretry(struct net_device *dev,
408                            struct iw_request_info *info,
409                            struct iw_param *retry, char *extra)
410 {
411         struct wireless_dev *wdev = dev->ieee80211_ptr;
412
413         retry->disabled = 0;
414
415         if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
416                 /*
417                  * First return short value, iwconfig will ask long value
418                  * later if needed
419                  */
420                 retry->flags |= IW_RETRY_LIMIT;
421                 retry->value = wdev->wiphy->retry_short;
422                 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
423                         retry->flags |= IW_RETRY_LONG;
424
425                 return 0;
426         }
427
428         if (retry->flags & IW_RETRY_LONG) {
429                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
430                 retry->value = wdev->wiphy->retry_long;
431         }
432
433         return 0;
434 }
435 EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
436
437 static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
438                                      struct net_device *dev, bool pairwise,
439                                      const u8 *addr, bool remove, bool tx_key,
440                                      int idx, struct key_params *params)
441 {
442         struct wireless_dev *wdev = dev->ieee80211_ptr;
443         int err, i;
444         bool rejoin = false;
445
446         if (pairwise && !addr)
447                 return -EINVAL;
448
449         if (!wdev->wext.keys) {
450                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
451                                               GFP_KERNEL);
452                 if (!wdev->wext.keys)
453                         return -ENOMEM;
454                 for (i = 0; i < 6; i++)
455                         wdev->wext.keys->params[i].key =
456                                 wdev->wext.keys->data[i];
457         }
458
459         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
460             wdev->iftype != NL80211_IFTYPE_STATION)
461                 return -EOPNOTSUPP;
462
463         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
464                 if (!wdev->current_bss)
465                         return -ENOLINK;
466
467                 if (!rdev->ops->set_default_mgmt_key)
468                         return -EOPNOTSUPP;
469
470                 if (idx < 4 || idx > 5)
471                         return -EINVAL;
472         } else if (idx < 0 || idx > 3)
473                 return -EINVAL;
474
475         if (remove) {
476                 err = 0;
477                 if (wdev->current_bss) {
478                         /*
479                          * If removing the current TX key, we will need to
480                          * join a new IBSS without the privacy bit clear.
481                          */
482                         if (idx == wdev->wext.default_key &&
483                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
484                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
485                                 rejoin = true;
486                         }
487
488                         if (!pairwise && addr &&
489                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
490                                 err = -ENOENT;
491                         else
492                                 err = rdev_del_key(rdev, dev, idx, pairwise,
493                                                    addr);
494                 }
495                 wdev->wext.connect.privacy = false;
496                 /*
497                  * Applications using wireless extensions expect to be
498                  * able to delete keys that don't exist, so allow that.
499                  */
500                 if (err == -ENOENT)
501                         err = 0;
502                 if (!err) {
503                         if (!addr) {
504                                 wdev->wext.keys->params[idx].key_len = 0;
505                                 wdev->wext.keys->params[idx].cipher = 0;
506                         }
507                         if (idx == wdev->wext.default_key)
508                                 wdev->wext.default_key = -1;
509                         else if (idx == wdev->wext.default_mgmt_key)
510                                 wdev->wext.default_mgmt_key = -1;
511                 }
512
513                 if (!err && rejoin)
514                         err = cfg80211_ibss_wext_join(rdev, wdev);
515
516                 return err;
517         }
518
519         if (addr)
520                 tx_key = false;
521
522         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
523                 return -EINVAL;
524
525         err = 0;
526         if (wdev->current_bss)
527                 err = rdev_add_key(rdev, dev, idx, pairwise, addr, params);
528         if (err)
529                 return err;
530
531         if (!addr) {
532                 wdev->wext.keys->params[idx] = *params;
533                 memcpy(wdev->wext.keys->data[idx],
534                         params->key, params->key_len);
535                 wdev->wext.keys->params[idx].key =
536                         wdev->wext.keys->data[idx];
537         }
538
539         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
540              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
541             (tx_key || (!addr && wdev->wext.default_key == -1))) {
542                 if (wdev->current_bss) {
543                         /*
544                          * If we are getting a new TX key from not having
545                          * had one before we need to join a new IBSS with
546                          * the privacy bit set.
547                          */
548                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
549                             wdev->wext.default_key == -1) {
550                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
551                                 rejoin = true;
552                         }
553                         err = rdev_set_default_key(rdev, dev, idx, true, true);
554                 }
555                 if (!err) {
556                         wdev->wext.default_key = idx;
557                         if (rejoin)
558                                 err = cfg80211_ibss_wext_join(rdev, wdev);
559                 }
560                 return err;
561         }
562
563         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
564             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
565                 if (wdev->current_bss)
566                         err = rdev_set_default_mgmt_key(rdev, dev, idx);
567                 if (!err)
568                         wdev->wext.default_mgmt_key = idx;
569                 return err;
570         }
571
572         return 0;
573 }
574
575 static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
576                                    struct net_device *dev, bool pairwise,
577                                    const u8 *addr, bool remove, bool tx_key,
578                                    int idx, struct key_params *params)
579 {
580         int err;
581
582         /* devlist mutex needed for possible IBSS re-join */
583         mutex_lock(&rdev->devlist_mtx);
584         wdev_lock(dev->ieee80211_ptr);
585         err = __cfg80211_set_encryption(rdev, dev, pairwise, addr,
586                                         remove, tx_key, idx, params);
587         wdev_unlock(dev->ieee80211_ptr);
588         mutex_unlock(&rdev->devlist_mtx);
589
590         return err;
591 }
592
593 static int cfg80211_wext_siwencode(struct net_device *dev,
594                                    struct iw_request_info *info,
595                                    struct iw_point *erq, char *keybuf)
596 {
597         struct wireless_dev *wdev = dev->ieee80211_ptr;
598         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
599         int idx, err;
600         bool remove = false;
601         struct key_params params;
602
603         if (wdev->iftype != NL80211_IFTYPE_STATION &&
604             wdev->iftype != NL80211_IFTYPE_ADHOC)
605                 return -EOPNOTSUPP;
606
607         /* no use -- only MFP (set_default_mgmt_key) is optional */
608         if (!rdev->ops->del_key ||
609             !rdev->ops->add_key ||
610             !rdev->ops->set_default_key)
611                 return -EOPNOTSUPP;
612
613         idx = erq->flags & IW_ENCODE_INDEX;
614         if (idx == 0) {
615                 idx = wdev->wext.default_key;
616                 if (idx < 0)
617                         idx = 0;
618         } else if (idx < 1 || idx > 4)
619                 return -EINVAL;
620         else
621                 idx--;
622
623         if (erq->flags & IW_ENCODE_DISABLED)
624                 remove = true;
625         else if (erq->length == 0) {
626                 /* No key data - just set the default TX key index */
627                 err = 0;
628                 wdev_lock(wdev);
629                 if (wdev->current_bss)
630                         err = rdev_set_default_key(rdev, dev, idx, true,
631                                                    true);
632                 if (!err)
633                         wdev->wext.default_key = idx;
634                 wdev_unlock(wdev);
635                 return err;
636         }
637
638         memset(&params, 0, sizeof(params));
639         params.key = keybuf;
640         params.key_len = erq->length;
641         if (erq->length == 5)
642                 params.cipher = WLAN_CIPHER_SUITE_WEP40;
643         else if (erq->length == 13)
644                 params.cipher = WLAN_CIPHER_SUITE_WEP104;
645         else if (!remove)
646                 return -EINVAL;
647
648         return cfg80211_set_encryption(rdev, dev, false, NULL, remove,
649                                        wdev->wext.default_key == -1,
650                                        idx, &params);
651 }
652
653 static int cfg80211_wext_siwencodeext(struct net_device *dev,
654                                       struct iw_request_info *info,
655                                       struct iw_point *erq, char *extra)
656 {
657         struct wireless_dev *wdev = dev->ieee80211_ptr;
658         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
659         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
660         const u8 *addr;
661         int idx;
662         bool remove = false;
663         struct key_params params;
664         u32 cipher;
665
666         if (wdev->iftype != NL80211_IFTYPE_STATION &&
667             wdev->iftype != NL80211_IFTYPE_ADHOC)
668                 return -EOPNOTSUPP;
669
670         /* no use -- only MFP (set_default_mgmt_key) is optional */
671         if (!rdev->ops->del_key ||
672             !rdev->ops->add_key ||
673             !rdev->ops->set_default_key)
674                 return -EOPNOTSUPP;
675
676         switch (ext->alg) {
677         case IW_ENCODE_ALG_NONE:
678                 remove = true;
679                 cipher = 0;
680                 break;
681         case IW_ENCODE_ALG_WEP:
682                 if (ext->key_len == 5)
683                         cipher = WLAN_CIPHER_SUITE_WEP40;
684                 else if (ext->key_len == 13)
685                         cipher = WLAN_CIPHER_SUITE_WEP104;
686                 else
687                         return -EINVAL;
688                 break;
689         case IW_ENCODE_ALG_TKIP:
690                 cipher = WLAN_CIPHER_SUITE_TKIP;
691                 break;
692         case IW_ENCODE_ALG_CCMP:
693                 cipher = WLAN_CIPHER_SUITE_CCMP;
694                 break;
695         case IW_ENCODE_ALG_AES_CMAC:
696                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
697                 break;
698         default:
699                 return -EOPNOTSUPP;
700         }
701
702         if (erq->flags & IW_ENCODE_DISABLED)
703                 remove = true;
704
705         idx = erq->flags & IW_ENCODE_INDEX;
706         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
707                 if (idx < 4 || idx > 5) {
708                         idx = wdev->wext.default_mgmt_key;
709                         if (idx < 0)
710                                 return -EINVAL;
711                 } else
712                         idx--;
713         } else {
714                 if (idx < 1 || idx > 4) {
715                         idx = wdev->wext.default_key;
716                         if (idx < 0)
717                                 return -EINVAL;
718                 } else
719                         idx--;
720         }
721
722         addr = ext->addr.sa_data;
723         if (is_broadcast_ether_addr(addr))
724                 addr = NULL;
725
726         memset(&params, 0, sizeof(params));
727         params.key = ext->key;
728         params.key_len = ext->key_len;
729         params.cipher = cipher;
730
731         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
732                 params.seq = ext->rx_seq;
733                 params.seq_len = 6;
734         }
735
736         return cfg80211_set_encryption(
737                         rdev, dev,
738                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
739                         addr, remove,
740                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
741                         idx, &params);
742 }
743
744 static int cfg80211_wext_giwencode(struct net_device *dev,
745                                    struct iw_request_info *info,
746                                    struct iw_point *erq, char *keybuf)
747 {
748         struct wireless_dev *wdev = dev->ieee80211_ptr;
749         int idx;
750
751         if (wdev->iftype != NL80211_IFTYPE_STATION &&
752             wdev->iftype != NL80211_IFTYPE_ADHOC)
753                 return -EOPNOTSUPP;
754
755         idx = erq->flags & IW_ENCODE_INDEX;
756         if (idx == 0) {
757                 idx = wdev->wext.default_key;
758                 if (idx < 0)
759                         idx = 0;
760         } else if (idx < 1 || idx > 4)
761                 return -EINVAL;
762         else
763                 idx--;
764
765         erq->flags = idx + 1;
766
767         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
768                 erq->flags |= IW_ENCODE_DISABLED;
769                 erq->length = 0;
770                 return 0;
771         }
772
773         erq->length = min_t(size_t, erq->length,
774                             wdev->wext.keys->params[idx].key_len);
775         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
776         erq->flags |= IW_ENCODE_ENABLED;
777
778         return 0;
779 }
780
781 static int cfg80211_wext_siwfreq(struct net_device *dev,
782                                  struct iw_request_info *info,
783                                  struct iw_freq *wextfreq, char *extra)
784 {
785         struct wireless_dev *wdev = dev->ieee80211_ptr;
786         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
787         struct cfg80211_chan_def chandef = {
788                 .width = NL80211_CHAN_WIDTH_20_NOHT,
789         };
790         int freq, err;
791
792         switch (wdev->iftype) {
793         case NL80211_IFTYPE_STATION:
794                 return cfg80211_mgd_wext_siwfreq(dev, info, wextfreq, extra);
795         case NL80211_IFTYPE_ADHOC:
796                 return cfg80211_ibss_wext_siwfreq(dev, info, wextfreq, extra);
797         case NL80211_IFTYPE_MONITOR:
798                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
799                 if (freq < 0)
800                         return freq;
801                 if (freq == 0)
802                         return -EINVAL;
803                 chandef.center_freq1 = freq;
804                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
805                 if (!chandef.chan)
806                         return -EINVAL;
807                 mutex_lock(&rdev->devlist_mtx);
808                 err = cfg80211_set_monitor_channel(rdev, &chandef);
809                 mutex_unlock(&rdev->devlist_mtx);
810                 return err;
811         case NL80211_IFTYPE_MESH_POINT:
812                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
813                 if (freq < 0)
814                         return freq;
815                 if (freq == 0)
816                         return -EINVAL;
817                 chandef.center_freq1 = freq;
818                 chandef.chan = ieee80211_get_channel(&rdev->wiphy, freq);
819                 if (!chandef.chan)
820                         return -EINVAL;
821                 mutex_lock(&rdev->devlist_mtx);
822                 err = cfg80211_set_mesh_channel(rdev, wdev, &chandef);
823                 mutex_unlock(&rdev->devlist_mtx);
824                 return err;
825         default:
826                 return -EOPNOTSUPP;
827         }
828 }
829
830 static int cfg80211_wext_giwfreq(struct net_device *dev,
831                                  struct iw_request_info *info,
832                                  struct iw_freq *freq, char *extra)
833 {
834         struct wireless_dev *wdev = dev->ieee80211_ptr;
835         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
836         struct cfg80211_chan_def chandef;
837         int ret;
838
839         switch (wdev->iftype) {
840         case NL80211_IFTYPE_STATION:
841                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
842         case NL80211_IFTYPE_ADHOC:
843                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
844         case NL80211_IFTYPE_MONITOR:
845                 if (!rdev->ops->get_channel)
846                         return -EINVAL;
847
848                 ret = rdev_get_channel(rdev, wdev, &chandef);
849                 if (ret)
850                         return ret;
851                 freq->m = chandef.chan->center_freq;
852                 freq->e = 6;
853                 return 0;
854         default:
855                 return -EINVAL;
856         }
857 }
858
859 static int cfg80211_wext_siwtxpower(struct net_device *dev,
860                                     struct iw_request_info *info,
861                                     union iwreq_data *data, char *extra)
862 {
863         struct wireless_dev *wdev = dev->ieee80211_ptr;
864         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
865         enum nl80211_tx_power_setting type;
866         int dbm = 0;
867
868         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
869                 return -EINVAL;
870         if (data->txpower.flags & IW_TXPOW_RANGE)
871                 return -EINVAL;
872
873         if (!rdev->ops->set_tx_power)
874                 return -EOPNOTSUPP;
875
876         /* only change when not disabling */
877         if (!data->txpower.disabled) {
878                 rfkill_set_sw_state(rdev->rfkill, false);
879
880                 if (data->txpower.fixed) {
881                         /*
882                          * wext doesn't support negative values, see
883                          * below where it's for automatic
884                          */
885                         if (data->txpower.value < 0)
886                                 return -EINVAL;
887                         dbm = data->txpower.value;
888                         type = NL80211_TX_POWER_FIXED;
889                         /* TODO: do regulatory check! */
890                 } else {
891                         /*
892                          * Automatic power level setting, max being the value
893                          * passed in from userland.
894                          */
895                         if (data->txpower.value < 0) {
896                                 type = NL80211_TX_POWER_AUTOMATIC;
897                         } else {
898                                 dbm = data->txpower.value;
899                                 type = NL80211_TX_POWER_LIMITED;
900                         }
901                 }
902         } else {
903                 rfkill_set_sw_state(rdev->rfkill, true);
904                 schedule_work(&rdev->rfkill_sync);
905                 return 0;
906         }
907
908         return rdev_set_tx_power(rdev, wdev, type, DBM_TO_MBM(dbm));
909 }
910
911 static int cfg80211_wext_giwtxpower(struct net_device *dev,
912                                     struct iw_request_info *info,
913                                     union iwreq_data *data, char *extra)
914 {
915         struct wireless_dev *wdev = dev->ieee80211_ptr;
916         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
917         int err, val;
918
919         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
920                 return -EINVAL;
921         if (data->txpower.flags & IW_TXPOW_RANGE)
922                 return -EINVAL;
923
924         if (!rdev->ops->get_tx_power)
925                 return -EOPNOTSUPP;
926
927         err = rdev_get_tx_power(rdev, wdev, &val);
928         if (err)
929                 return err;
930
931         /* well... oh well */
932         data->txpower.fixed = 1;
933         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
934         data->txpower.value = val;
935         data->txpower.flags = IW_TXPOW_DBM;
936
937         return 0;
938 }
939
940 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
941                                  s32 auth_alg)
942 {
943         int nr_alg = 0;
944
945         if (!auth_alg)
946                 return -EINVAL;
947
948         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
949                          IW_AUTH_ALG_SHARED_KEY |
950                          IW_AUTH_ALG_LEAP))
951                 return -EINVAL;
952
953         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
954                 nr_alg++;
955                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
956         }
957
958         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
959                 nr_alg++;
960                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
961         }
962
963         if (auth_alg & IW_AUTH_ALG_LEAP) {
964                 nr_alg++;
965                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
966         }
967
968         if (nr_alg > 1)
969                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
970
971         return 0;
972 }
973
974 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
975 {
976         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
977                              IW_AUTH_WPA_VERSION_WPA2|
978                              IW_AUTH_WPA_VERSION_DISABLED))
979                 return -EINVAL;
980
981         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
982             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
983                              IW_AUTH_WPA_VERSION_WPA2)))
984                 return -EINVAL;
985
986         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
987                 wdev->wext.connect.crypto.wpa_versions &=
988                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
989
990         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
991                 wdev->wext.connect.crypto.wpa_versions |=
992                         NL80211_WPA_VERSION_1;
993
994         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
995                 wdev->wext.connect.crypto.wpa_versions |=
996                         NL80211_WPA_VERSION_2;
997
998         return 0;
999 }
1000
1001 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
1002 {
1003         if (cipher & IW_AUTH_CIPHER_WEP40)
1004                 wdev->wext.connect.crypto.cipher_group =
1005                         WLAN_CIPHER_SUITE_WEP40;
1006         else if (cipher & IW_AUTH_CIPHER_WEP104)
1007                 wdev->wext.connect.crypto.cipher_group =
1008                         WLAN_CIPHER_SUITE_WEP104;
1009         else if (cipher & IW_AUTH_CIPHER_TKIP)
1010                 wdev->wext.connect.crypto.cipher_group =
1011                         WLAN_CIPHER_SUITE_TKIP;
1012         else if (cipher & IW_AUTH_CIPHER_CCMP)
1013                 wdev->wext.connect.crypto.cipher_group =
1014                         WLAN_CIPHER_SUITE_CCMP;
1015         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
1016                 wdev->wext.connect.crypto.cipher_group =
1017                         WLAN_CIPHER_SUITE_AES_CMAC;
1018         else if (cipher & IW_AUTH_CIPHER_NONE)
1019                 wdev->wext.connect.crypto.cipher_group = 0;
1020         else
1021                 return -EINVAL;
1022
1023         return 0;
1024 }
1025
1026 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1027 {
1028         int nr_ciphers = 0;
1029         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1030
1031         if (cipher & IW_AUTH_CIPHER_WEP40) {
1032                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1033                 nr_ciphers++;
1034         }
1035
1036         if (cipher & IW_AUTH_CIPHER_WEP104) {
1037                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1038                 nr_ciphers++;
1039         }
1040
1041         if (cipher & IW_AUTH_CIPHER_TKIP) {
1042                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1043                 nr_ciphers++;
1044         }
1045
1046         if (cipher & IW_AUTH_CIPHER_CCMP) {
1047                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1048                 nr_ciphers++;
1049         }
1050
1051         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1052                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1053                 nr_ciphers++;
1054         }
1055
1056         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1057
1058         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1059
1060         return 0;
1061 }
1062
1063
1064 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1065 {
1066         int nr_akm_suites = 0;
1067
1068         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1069                         IW_AUTH_KEY_MGMT_PSK))
1070                 return -EINVAL;
1071
1072         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1073                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1074                         WLAN_AKM_SUITE_8021X;
1075                 nr_akm_suites++;
1076         }
1077
1078         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1079                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1080                         WLAN_AKM_SUITE_PSK;
1081                 nr_akm_suites++;
1082         }
1083
1084         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1085
1086         return 0;
1087 }
1088
1089 static int cfg80211_wext_siwauth(struct net_device *dev,
1090                                  struct iw_request_info *info,
1091                                  struct iw_param *data, char *extra)
1092 {
1093         struct wireless_dev *wdev = dev->ieee80211_ptr;
1094
1095         if (wdev->iftype != NL80211_IFTYPE_STATION)
1096                 return -EOPNOTSUPP;
1097
1098         switch (data->flags & IW_AUTH_INDEX) {
1099         case IW_AUTH_PRIVACY_INVOKED:
1100                 wdev->wext.connect.privacy = data->value;
1101                 return 0;
1102         case IW_AUTH_WPA_VERSION:
1103                 return cfg80211_set_wpa_version(wdev, data->value);
1104         case IW_AUTH_CIPHER_GROUP:
1105                 return cfg80211_set_cipher_group(wdev, data->value);
1106         case IW_AUTH_KEY_MGMT:
1107                 return cfg80211_set_key_mgt(wdev, data->value);
1108         case IW_AUTH_CIPHER_PAIRWISE:
1109                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1110         case IW_AUTH_80211_AUTH_ALG:
1111                 return cfg80211_set_auth_alg(wdev, data->value);
1112         case IW_AUTH_WPA_ENABLED:
1113         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1114         case IW_AUTH_DROP_UNENCRYPTED:
1115         case IW_AUTH_MFP:
1116                 return 0;
1117         default:
1118                 return -EOPNOTSUPP;
1119         }
1120 }
1121
1122 static int cfg80211_wext_giwauth(struct net_device *dev,
1123                                  struct iw_request_info *info,
1124                                  struct iw_param *data, char *extra)
1125 {
1126         /* XXX: what do we need? */
1127
1128         return -EOPNOTSUPP;
1129 }
1130
1131 static int cfg80211_wext_siwpower(struct net_device *dev,
1132                                   struct iw_request_info *info,
1133                                   struct iw_param *wrq, char *extra)
1134 {
1135         struct wireless_dev *wdev = dev->ieee80211_ptr;
1136         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1137         bool ps = wdev->ps;
1138         int timeout = wdev->ps_timeout;
1139         int err;
1140
1141         if (wdev->iftype != NL80211_IFTYPE_STATION)
1142                 return -EINVAL;
1143
1144         if (!rdev->ops->set_power_mgmt)
1145                 return -EOPNOTSUPP;
1146
1147         if (wrq->disabled) {
1148                 ps = false;
1149         } else {
1150                 switch (wrq->flags & IW_POWER_MODE) {
1151                 case IW_POWER_ON:       /* If not specified */
1152                 case IW_POWER_MODE:     /* If set all mask */
1153                 case IW_POWER_ALL_R:    /* If explicitely state all */
1154                         ps = true;
1155                         break;
1156                 default:                /* Otherwise we ignore */
1157                         return -EINVAL;
1158                 }
1159
1160                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1161                         return -EINVAL;
1162
1163                 if (wrq->flags & IW_POWER_TIMEOUT)
1164                         timeout = wrq->value / 1000;
1165         }
1166
1167         err = rdev_set_power_mgmt(rdev, dev, ps, timeout);
1168         if (err)
1169                 return err;
1170
1171         wdev->ps = ps;
1172         wdev->ps_timeout = timeout;
1173
1174         return 0;
1175
1176 }
1177
1178 static int cfg80211_wext_giwpower(struct net_device *dev,
1179                                   struct iw_request_info *info,
1180                                   struct iw_param *wrq, char *extra)
1181 {
1182         struct wireless_dev *wdev = dev->ieee80211_ptr;
1183
1184         wrq->disabled = !wdev->ps;
1185
1186         return 0;
1187 }
1188
1189 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1190                                    struct iw_request_info *info,
1191                                    struct sockaddr *addr, char *extra)
1192 {
1193         struct wireless_dev *wdev = dev->ieee80211_ptr;
1194         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1195         int err;
1196
1197         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1198                 return -EINVAL;
1199
1200         if (addr->sa_family != ARPHRD_ETHER)
1201                 return -EINVAL;
1202
1203         if (netif_running(dev))
1204                 return -EBUSY;
1205
1206         if (!rdev->ops->set_wds_peer)
1207                 return -EOPNOTSUPP;
1208
1209         err = rdev_set_wds_peer(rdev, dev, (u8 *)&addr->sa_data);
1210         if (err)
1211                 return err;
1212
1213         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1214
1215         return 0;
1216 }
1217
1218 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1219                                    struct iw_request_info *info,
1220                                    struct sockaddr *addr, char *extra)
1221 {
1222         struct wireless_dev *wdev = dev->ieee80211_ptr;
1223
1224         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1225                 return -EINVAL;
1226
1227         addr->sa_family = ARPHRD_ETHER;
1228         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1229
1230         return 0;
1231 }
1232
1233 static int cfg80211_wext_siwrate(struct net_device *dev,
1234                                  struct iw_request_info *info,
1235                                  struct iw_param *rate, char *extra)
1236 {
1237         struct wireless_dev *wdev = dev->ieee80211_ptr;
1238         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1239         struct cfg80211_bitrate_mask mask;
1240         u32 fixed, maxrate;
1241         struct ieee80211_supported_band *sband;
1242         int band, ridx;
1243         bool match = false;
1244
1245         if (!rdev->ops->set_bitrate_mask)
1246                 return -EOPNOTSUPP;
1247
1248         memset(&mask, 0, sizeof(mask));
1249         fixed = 0;
1250         maxrate = (u32)-1;
1251
1252         if (rate->value < 0) {
1253                 /* nothing */
1254         } else if (rate->fixed) {
1255                 fixed = rate->value / 100000;
1256         } else {
1257                 maxrate = rate->value / 100000;
1258         }
1259
1260         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1261                 sband = wdev->wiphy->bands[band];
1262                 if (sband == NULL)
1263                         continue;
1264                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1265                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1266                         if (fixed == srate->bitrate) {
1267                                 mask.control[band].legacy = 1 << ridx;
1268                                 match = true;
1269                                 break;
1270                         }
1271                         if (srate->bitrate <= maxrate) {
1272                                 mask.control[band].legacy |= 1 << ridx;
1273                                 match = true;
1274                         }
1275                 }
1276         }
1277
1278         if (!match)
1279                 return -EINVAL;
1280
1281         return rdev_set_bitrate_mask(rdev, dev, NULL, &mask);
1282 }
1283
1284 static int cfg80211_wext_giwrate(struct net_device *dev,
1285                                  struct iw_request_info *info,
1286                                  struct iw_param *rate, char *extra)
1287 {
1288         struct wireless_dev *wdev = dev->ieee80211_ptr;
1289         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1290         /* we are under RTNL - globally locked - so can use a static struct */
1291         static struct station_info sinfo;
1292         u8 addr[ETH_ALEN];
1293         int err;
1294
1295         if (wdev->iftype != NL80211_IFTYPE_STATION)
1296                 return -EOPNOTSUPP;
1297
1298         if (!rdev->ops->get_station)
1299                 return -EOPNOTSUPP;
1300
1301         err = 0;
1302         wdev_lock(wdev);
1303         if (wdev->current_bss)
1304                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1305         else
1306                 err = -EOPNOTSUPP;
1307         wdev_unlock(wdev);
1308         if (err)
1309                 return err;
1310
1311         err = rdev_get_station(rdev, dev, addr, &sinfo);
1312         if (err)
1313                 return err;
1314
1315         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1316                 return -EOPNOTSUPP;
1317
1318         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1319
1320         return 0;
1321 }
1322
1323 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1324 static struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1325 {
1326         struct wireless_dev *wdev = dev->ieee80211_ptr;
1327         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1328         /* we are under RTNL - globally locked - so can use static structs */
1329         static struct iw_statistics wstats;
1330         static struct station_info sinfo;
1331         u8 bssid[ETH_ALEN];
1332
1333         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1334                 return NULL;
1335
1336         if (!rdev->ops->get_station)
1337                 return NULL;
1338
1339         /* Grab BSSID of current BSS, if any */
1340         wdev_lock(wdev);
1341         if (!wdev->current_bss) {
1342                 wdev_unlock(wdev);
1343                 return NULL;
1344         }
1345         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1346         wdev_unlock(wdev);
1347
1348         if (rdev_get_station(rdev, dev, bssid, &sinfo))
1349                 return NULL;
1350
1351         memset(&wstats, 0, sizeof(wstats));
1352
1353         switch (rdev->wiphy.signal_type) {
1354         case CFG80211_SIGNAL_TYPE_MBM:
1355                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1356                         int sig = sinfo.signal;
1357                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1358                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1359                         wstats.qual.updated |= IW_QUAL_DBM;
1360                         wstats.qual.level = sig;
1361                         if (sig < -110)
1362                                 sig = -110;
1363                         else if (sig > -40)
1364                                 sig = -40;
1365                         wstats.qual.qual = sig + 110;
1366                         break;
1367                 }
1368         case CFG80211_SIGNAL_TYPE_UNSPEC:
1369                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1370                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1371                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1372                         wstats.qual.level = sinfo.signal;
1373                         wstats.qual.qual = sinfo.signal;
1374                         break;
1375                 }
1376         default:
1377                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1378                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1379         }
1380
1381         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1382         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1383                 wstats.discard.misc = sinfo.rx_dropped_misc;
1384         if (sinfo.filled & STATION_INFO_TX_FAILED)
1385                 wstats.discard.retries = sinfo.tx_failed;
1386
1387         return &wstats;
1388 }
1389
1390 static int cfg80211_wext_siwap(struct net_device *dev,
1391                                struct iw_request_info *info,
1392                                struct sockaddr *ap_addr, char *extra)
1393 {
1394         struct wireless_dev *wdev = dev->ieee80211_ptr;
1395
1396         switch (wdev->iftype) {
1397         case NL80211_IFTYPE_ADHOC:
1398                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1399         case NL80211_IFTYPE_STATION:
1400                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1401         case NL80211_IFTYPE_WDS:
1402                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1403         default:
1404                 return -EOPNOTSUPP;
1405         }
1406 }
1407
1408 static int cfg80211_wext_giwap(struct net_device *dev,
1409                                struct iw_request_info *info,
1410                                struct sockaddr *ap_addr, char *extra)
1411 {
1412         struct wireless_dev *wdev = dev->ieee80211_ptr;
1413
1414         switch (wdev->iftype) {
1415         case NL80211_IFTYPE_ADHOC:
1416                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1417         case NL80211_IFTYPE_STATION:
1418                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1419         case NL80211_IFTYPE_WDS:
1420                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1421         default:
1422                 return -EOPNOTSUPP;
1423         }
1424 }
1425
1426 static int cfg80211_wext_siwessid(struct net_device *dev,
1427                                   struct iw_request_info *info,
1428                                   struct iw_point *data, char *ssid)
1429 {
1430         struct wireless_dev *wdev = dev->ieee80211_ptr;
1431
1432         switch (wdev->iftype) {
1433         case NL80211_IFTYPE_ADHOC:
1434                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1435         case NL80211_IFTYPE_STATION:
1436                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1437         default:
1438                 return -EOPNOTSUPP;
1439         }
1440 }
1441
1442 static int cfg80211_wext_giwessid(struct net_device *dev,
1443                                   struct iw_request_info *info,
1444                                   struct iw_point *data, char *ssid)
1445 {
1446         struct wireless_dev *wdev = dev->ieee80211_ptr;
1447
1448         data->flags = 0;
1449         data->length = 0;
1450
1451         switch (wdev->iftype) {
1452         case NL80211_IFTYPE_ADHOC:
1453                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1454         case NL80211_IFTYPE_STATION:
1455                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1456         default:
1457                 return -EOPNOTSUPP;
1458         }
1459 }
1460
1461 static int cfg80211_wext_siwpmksa(struct net_device *dev,
1462                                   struct iw_request_info *info,
1463                                   struct iw_point *data, char *extra)
1464 {
1465         struct wireless_dev *wdev = dev->ieee80211_ptr;
1466         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1467         struct cfg80211_pmksa cfg_pmksa;
1468         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1469
1470         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1471
1472         if (wdev->iftype != NL80211_IFTYPE_STATION)
1473                 return -EINVAL;
1474
1475         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1476         cfg_pmksa.pmkid = pmksa->pmkid;
1477
1478         switch (pmksa->cmd) {
1479         case IW_PMKSA_ADD:
1480                 if (!rdev->ops->set_pmksa)
1481                         return -EOPNOTSUPP;
1482
1483                 return rdev_set_pmksa(rdev, dev, &cfg_pmksa);
1484
1485         case IW_PMKSA_REMOVE:
1486                 if (!rdev->ops->del_pmksa)
1487                         return -EOPNOTSUPP;
1488
1489                 return rdev_del_pmksa(rdev, dev, &cfg_pmksa);
1490
1491         case IW_PMKSA_FLUSH:
1492                 if (!rdev->ops->flush_pmksa)
1493                         return -EOPNOTSUPP;
1494
1495                 return rdev_flush_pmksa(rdev, dev);
1496
1497         default:
1498                 return -EOPNOTSUPP;
1499         }
1500 }
1501
1502 static const iw_handler cfg80211_handlers[] = {
1503         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1504         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1505         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1506         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1507         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1508         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1509         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1510         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1511         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1512         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1513         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1514         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1515         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1516         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1517         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1518         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1519         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1520         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1521         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1522         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1523         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1524         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1525         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1526         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1527         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1528         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1529         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1530         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1531         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1532         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1533         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1534         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1535 };
1536
1537 const struct iw_handler_def cfg80211_wext_handler = {
1538         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1539         .standard               = cfg80211_handlers,
1540         .get_wireless_stats = cfg80211_wireless_stats,
1541 };