cfg80211/nl80211: separate unicast/multicast default TX keys
[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, bool pairwise,
436                                      const u8 *addr, bool remove, bool tx_key,
437                                      int idx, struct key_params *params)
438 {
439         struct wireless_dev *wdev = dev->ieee80211_ptr;
440         int err, i;
441         bool rejoin = false;
442
443         if (pairwise && !addr)
444                 return -EINVAL;
445
446         if (!wdev->wext.keys) {
447                 wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
448                                               GFP_KERNEL);
449                 if (!wdev->wext.keys)
450                         return -ENOMEM;
451                 for (i = 0; i < 6; i++)
452                         wdev->wext.keys->params[i].key =
453                                 wdev->wext.keys->data[i];
454         }
455
456         if (wdev->iftype != NL80211_IFTYPE_ADHOC &&
457             wdev->iftype != NL80211_IFTYPE_STATION)
458                 return -EOPNOTSUPP;
459
460         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
461                 if (!wdev->current_bss)
462                         return -ENOLINK;
463
464                 if (!rdev->ops->set_default_mgmt_key)
465                         return -EOPNOTSUPP;
466
467                 if (idx < 4 || idx > 5)
468                         return -EINVAL;
469         } else if (idx < 0 || idx > 3)
470                 return -EINVAL;
471
472         if (remove) {
473                 err = 0;
474                 if (wdev->current_bss) {
475                         /*
476                          * If removing the current TX key, we will need to
477                          * join a new IBSS without the privacy bit clear.
478                          */
479                         if (idx == wdev->wext.default_key &&
480                             wdev->iftype == NL80211_IFTYPE_ADHOC) {
481                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
482                                 rejoin = true;
483                         }
484
485                         if (!pairwise && addr &&
486                             !(rdev->wiphy.flags & WIPHY_FLAG_IBSS_RSN))
487                                 err = -ENOENT;
488                         else
489                                 err = rdev->ops->del_key(&rdev->wiphy, dev, idx,
490                                                          pairwise, addr);
491                 }
492                 wdev->wext.connect.privacy = false;
493                 /*
494                  * Applications using wireless extensions expect to be
495                  * able to delete keys that don't exist, so allow that.
496                  */
497                 if (err == -ENOENT)
498                         err = 0;
499                 if (!err) {
500                         if (!addr) {
501                                 wdev->wext.keys->params[idx].key_len = 0;
502                                 wdev->wext.keys->params[idx].cipher = 0;
503                         }
504                         if (idx == wdev->wext.default_key)
505                                 wdev->wext.default_key = -1;
506                         else if (idx == wdev->wext.default_mgmt_key)
507                                 wdev->wext.default_mgmt_key = -1;
508                 }
509
510                 if (!err && rejoin)
511                         err = cfg80211_ibss_wext_join(rdev, wdev);
512
513                 return err;
514         }
515
516         if (addr)
517                 tx_key = false;
518
519         if (cfg80211_validate_key_settings(rdev, params, idx, pairwise, addr))
520                 return -EINVAL;
521
522         err = 0;
523         if (wdev->current_bss)
524                 err = rdev->ops->add_key(&rdev->wiphy, dev, idx,
525                                          pairwise, addr, params);
526         if (err)
527                 return err;
528
529         if (!addr) {
530                 wdev->wext.keys->params[idx] = *params;
531                 memcpy(wdev->wext.keys->data[idx],
532                         params->key, params->key_len);
533                 wdev->wext.keys->params[idx].key =
534                         wdev->wext.keys->data[idx];
535         }
536
537         if ((params->cipher == WLAN_CIPHER_SUITE_WEP40 ||
538              params->cipher == WLAN_CIPHER_SUITE_WEP104) &&
539             (tx_key || (!addr && wdev->wext.default_key == -1))) {
540                 if (wdev->current_bss) {
541                         /*
542                          * If we are getting a new TX key from not having
543                          * had one before we need to join a new IBSS with
544                          * the privacy bit set.
545                          */
546                         if (wdev->iftype == NL80211_IFTYPE_ADHOC &&
547                             wdev->wext.default_key == -1) {
548                                 __cfg80211_leave_ibss(rdev, wdev->netdev, true);
549                                 rejoin = true;
550                         }
551                         err = rdev->ops->set_default_key(&rdev->wiphy, dev,
552                                                          idx, true, true);
553                 }
554                 if (!err) {
555                         wdev->wext.default_key = idx;
556                         if (rejoin)
557                                 err = cfg80211_ibss_wext_join(rdev, wdev);
558                 }
559                 return err;
560         }
561
562         if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
563             (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
564                 if (wdev->current_bss)
565                         err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
566                                                               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 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->ops->set_default_key(&rdev->wiphy, dev,
631                                                          idx, true, 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 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
653
654 int cfg80211_wext_siwencodeext(struct net_device *dev,
655                                struct iw_request_info *info,
656                                struct iw_point *erq, char *extra)
657 {
658         struct wireless_dev *wdev = dev->ieee80211_ptr;
659         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
660         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
661         const u8 *addr;
662         int idx;
663         bool remove = false;
664         struct key_params params;
665         u32 cipher;
666
667         if (wdev->iftype != NL80211_IFTYPE_STATION &&
668             wdev->iftype != NL80211_IFTYPE_ADHOC)
669                 return -EOPNOTSUPP;
670
671         /* no use -- only MFP (set_default_mgmt_key) is optional */
672         if (!rdev->ops->del_key ||
673             !rdev->ops->add_key ||
674             !rdev->ops->set_default_key)
675                 return -EOPNOTSUPP;
676
677         switch (ext->alg) {
678         case IW_ENCODE_ALG_NONE:
679                 remove = true;
680                 cipher = 0;
681                 break;
682         case IW_ENCODE_ALG_WEP:
683                 if (ext->key_len == 5)
684                         cipher = WLAN_CIPHER_SUITE_WEP40;
685                 else if (ext->key_len == 13)
686                         cipher = WLAN_CIPHER_SUITE_WEP104;
687                 else
688                         return -EINVAL;
689                 break;
690         case IW_ENCODE_ALG_TKIP:
691                 cipher = WLAN_CIPHER_SUITE_TKIP;
692                 break;
693         case IW_ENCODE_ALG_CCMP:
694                 cipher = WLAN_CIPHER_SUITE_CCMP;
695                 break;
696         case IW_ENCODE_ALG_AES_CMAC:
697                 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
698                 break;
699         default:
700                 return -EOPNOTSUPP;
701         }
702
703         if (erq->flags & IW_ENCODE_DISABLED)
704                 remove = true;
705
706         idx = erq->flags & IW_ENCODE_INDEX;
707         if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
708                 if (idx < 4 || idx > 5) {
709                         idx = wdev->wext.default_mgmt_key;
710                         if (idx < 0)
711                                 return -EINVAL;
712                 } else
713                         idx--;
714         } else {
715                 if (idx < 1 || idx > 4) {
716                         idx = wdev->wext.default_key;
717                         if (idx < 0)
718                                 return -EINVAL;
719                 } else
720                         idx--;
721         }
722
723         addr = ext->addr.sa_data;
724         if (is_broadcast_ether_addr(addr))
725                 addr = NULL;
726
727         memset(&params, 0, sizeof(params));
728         params.key = ext->key;
729         params.key_len = ext->key_len;
730         params.cipher = cipher;
731
732         if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
733                 params.seq = ext->rx_seq;
734                 params.seq_len = 6;
735         }
736
737         return cfg80211_set_encryption(
738                         rdev, dev,
739                         !(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY),
740                         addr, remove,
741                         ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
742                         idx, &params);
743 }
744 EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
745
746 int cfg80211_wext_giwencode(struct net_device *dev,
747                             struct iw_request_info *info,
748                             struct iw_point *erq, char *keybuf)
749 {
750         struct wireless_dev *wdev = dev->ieee80211_ptr;
751         int idx;
752
753         if (wdev->iftype != NL80211_IFTYPE_STATION &&
754             wdev->iftype != NL80211_IFTYPE_ADHOC)
755                 return -EOPNOTSUPP;
756
757         idx = erq->flags & IW_ENCODE_INDEX;
758         if (idx == 0) {
759                 idx = wdev->wext.default_key;
760                 if (idx < 0)
761                         idx = 0;
762         } else if (idx < 1 || idx > 4)
763                 return -EINVAL;
764         else
765                 idx--;
766
767         erq->flags = idx + 1;
768
769         if (!wdev->wext.keys || !wdev->wext.keys->params[idx].cipher) {
770                 erq->flags |= IW_ENCODE_DISABLED;
771                 erq->length = 0;
772                 return 0;
773         }
774
775         erq->length = min_t(size_t, erq->length,
776                             wdev->wext.keys->params[idx].key_len);
777         memcpy(keybuf, wdev->wext.keys->params[idx].key, erq->length);
778         erq->flags |= IW_ENCODE_ENABLED;
779
780         return 0;
781 }
782 EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
783
784 int cfg80211_wext_siwfreq(struct net_device *dev,
785                           struct iw_request_info *info,
786                           struct iw_freq *wextfreq, char *extra)
787 {
788         struct wireless_dev *wdev = dev->ieee80211_ptr;
789         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
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         case NL80211_IFTYPE_WDS:
799         case NL80211_IFTYPE_MESH_POINT:
800                 freq = cfg80211_wext_freq(wdev->wiphy, wextfreq);
801                 if (freq < 0)
802                         return freq;
803                 if (freq == 0)
804                         return -EINVAL;
805                 wdev_lock(wdev);
806                 mutex_lock(&rdev->devlist_mtx);
807                 err = cfg80211_set_freq(rdev, wdev, freq, NL80211_CHAN_NO_HT);
808                 mutex_unlock(&rdev->devlist_mtx);
809                 wdev_unlock(wdev);
810                 return err;
811         default:
812                 return -EOPNOTSUPP;
813         }
814 }
815 EXPORT_SYMBOL_GPL(cfg80211_wext_siwfreq);
816
817 int cfg80211_wext_giwfreq(struct net_device *dev,
818                           struct iw_request_info *info,
819                           struct iw_freq *freq, char *extra)
820 {
821         struct wireless_dev *wdev = dev->ieee80211_ptr;
822
823         switch (wdev->iftype) {
824         case NL80211_IFTYPE_STATION:
825                 return cfg80211_mgd_wext_giwfreq(dev, info, freq, extra);
826         case NL80211_IFTYPE_ADHOC:
827                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
828         default:
829                 if (!wdev->channel)
830                         return -EINVAL;
831                 freq->m = wdev->channel->center_freq;
832                 freq->e = 6;
833                 return 0;
834         }
835 }
836 EXPORT_SYMBOL_GPL(cfg80211_wext_giwfreq);
837
838 int cfg80211_wext_siwtxpower(struct net_device *dev,
839                              struct iw_request_info *info,
840                              union iwreq_data *data, char *extra)
841 {
842         struct wireless_dev *wdev = dev->ieee80211_ptr;
843         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
844         enum nl80211_tx_power_setting type;
845         int dbm = 0;
846
847         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
848                 return -EINVAL;
849         if (data->txpower.flags & IW_TXPOW_RANGE)
850                 return -EINVAL;
851
852         if (!rdev->ops->set_tx_power)
853                 return -EOPNOTSUPP;
854
855         /* only change when not disabling */
856         if (!data->txpower.disabled) {
857                 rfkill_set_sw_state(rdev->rfkill, false);
858
859                 if (data->txpower.fixed) {
860                         /*
861                          * wext doesn't support negative values, see
862                          * below where it's for automatic
863                          */
864                         if (data->txpower.value < 0)
865                                 return -EINVAL;
866                         dbm = data->txpower.value;
867                         type = NL80211_TX_POWER_FIXED;
868                         /* TODO: do regulatory check! */
869                 } else {
870                         /*
871                          * Automatic power level setting, max being the value
872                          * passed in from userland.
873                          */
874                         if (data->txpower.value < 0) {
875                                 type = NL80211_TX_POWER_AUTOMATIC;
876                         } else {
877                                 dbm = data->txpower.value;
878                                 type = NL80211_TX_POWER_LIMITED;
879                         }
880                 }
881         } else {
882                 rfkill_set_sw_state(rdev->rfkill, true);
883                 schedule_work(&rdev->rfkill_sync);
884                 return 0;
885         }
886
887         return rdev->ops->set_tx_power(wdev->wiphy, type, DBM_TO_MBM(dbm));
888 }
889 EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
890
891 int cfg80211_wext_giwtxpower(struct net_device *dev,
892                              struct iw_request_info *info,
893                              union iwreq_data *data, char *extra)
894 {
895         struct wireless_dev *wdev = dev->ieee80211_ptr;
896         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
897         int err, val;
898
899         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
900                 return -EINVAL;
901         if (data->txpower.flags & IW_TXPOW_RANGE)
902                 return -EINVAL;
903
904         if (!rdev->ops->get_tx_power)
905                 return -EOPNOTSUPP;
906
907         err = rdev->ops->get_tx_power(wdev->wiphy, &val);
908         if (err)
909                 return err;
910
911         /* well... oh well */
912         data->txpower.fixed = 1;
913         data->txpower.disabled = rfkill_blocked(rdev->rfkill);
914         data->txpower.value = val;
915         data->txpower.flags = IW_TXPOW_DBM;
916
917         return 0;
918 }
919 EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
920
921 static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
922                                  s32 auth_alg)
923 {
924         int nr_alg = 0;
925
926         if (!auth_alg)
927                 return -EINVAL;
928
929         if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
930                          IW_AUTH_ALG_SHARED_KEY |
931                          IW_AUTH_ALG_LEAP))
932                 return -EINVAL;
933
934         if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
935                 nr_alg++;
936                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
937         }
938
939         if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
940                 nr_alg++;
941                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
942         }
943
944         if (auth_alg & IW_AUTH_ALG_LEAP) {
945                 nr_alg++;
946                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
947         }
948
949         if (nr_alg > 1)
950                 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
951
952         return 0;
953 }
954
955 static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
956 {
957         if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
958                              IW_AUTH_WPA_VERSION_WPA2|
959                              IW_AUTH_WPA_VERSION_DISABLED))
960                 return -EINVAL;
961
962         if ((wpa_versions & IW_AUTH_WPA_VERSION_DISABLED) &&
963             (wpa_versions & (IW_AUTH_WPA_VERSION_WPA|
964                              IW_AUTH_WPA_VERSION_WPA2)))
965                 return -EINVAL;
966
967         if (wpa_versions & IW_AUTH_WPA_VERSION_DISABLED)
968                 wdev->wext.connect.crypto.wpa_versions &=
969                         ~(NL80211_WPA_VERSION_1|NL80211_WPA_VERSION_2);
970
971         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
972                 wdev->wext.connect.crypto.wpa_versions |=
973                         NL80211_WPA_VERSION_1;
974
975         if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
976                 wdev->wext.connect.crypto.wpa_versions |=
977                         NL80211_WPA_VERSION_2;
978
979         return 0;
980 }
981
982 static int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
983 {
984         if (cipher & IW_AUTH_CIPHER_WEP40)
985                 wdev->wext.connect.crypto.cipher_group =
986                         WLAN_CIPHER_SUITE_WEP40;
987         else if (cipher & IW_AUTH_CIPHER_WEP104)
988                 wdev->wext.connect.crypto.cipher_group =
989                         WLAN_CIPHER_SUITE_WEP104;
990         else if (cipher & IW_AUTH_CIPHER_TKIP)
991                 wdev->wext.connect.crypto.cipher_group =
992                         WLAN_CIPHER_SUITE_TKIP;
993         else if (cipher & IW_AUTH_CIPHER_CCMP)
994                 wdev->wext.connect.crypto.cipher_group =
995                         WLAN_CIPHER_SUITE_CCMP;
996         else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
997                 wdev->wext.connect.crypto.cipher_group =
998                         WLAN_CIPHER_SUITE_AES_CMAC;
999         else if (cipher & IW_AUTH_CIPHER_NONE)
1000                 wdev->wext.connect.crypto.cipher_group = 0;
1001         else
1002                 return -EINVAL;
1003
1004         return 0;
1005 }
1006
1007 static int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
1008 {
1009         int nr_ciphers = 0;
1010         u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
1011
1012         if (cipher & IW_AUTH_CIPHER_WEP40) {
1013                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
1014                 nr_ciphers++;
1015         }
1016
1017         if (cipher & IW_AUTH_CIPHER_WEP104) {
1018                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
1019                 nr_ciphers++;
1020         }
1021
1022         if (cipher & IW_AUTH_CIPHER_TKIP) {
1023                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
1024                 nr_ciphers++;
1025         }
1026
1027         if (cipher & IW_AUTH_CIPHER_CCMP) {
1028                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
1029                 nr_ciphers++;
1030         }
1031
1032         if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
1033                 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
1034                 nr_ciphers++;
1035         }
1036
1037         BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
1038
1039         wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
1040
1041         return 0;
1042 }
1043
1044
1045 static int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
1046 {
1047         int nr_akm_suites = 0;
1048
1049         if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
1050                         IW_AUTH_KEY_MGMT_PSK))
1051                 return -EINVAL;
1052
1053         if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
1054                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1055                         WLAN_AKM_SUITE_8021X;
1056                 nr_akm_suites++;
1057         }
1058
1059         if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
1060                 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
1061                         WLAN_AKM_SUITE_PSK;
1062                 nr_akm_suites++;
1063         }
1064
1065         wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
1066
1067         return 0;
1068 }
1069
1070 int cfg80211_wext_siwauth(struct net_device *dev,
1071                           struct iw_request_info *info,
1072                           struct iw_param *data, char *extra)
1073 {
1074         struct wireless_dev *wdev = dev->ieee80211_ptr;
1075
1076         if (wdev->iftype != NL80211_IFTYPE_STATION)
1077                 return -EOPNOTSUPP;
1078
1079         switch (data->flags & IW_AUTH_INDEX) {
1080         case IW_AUTH_PRIVACY_INVOKED:
1081                 wdev->wext.connect.privacy = data->value;
1082                 return 0;
1083         case IW_AUTH_WPA_VERSION:
1084                 return cfg80211_set_wpa_version(wdev, data->value);
1085         case IW_AUTH_CIPHER_GROUP:
1086                 return cfg80211_set_cipher_group(wdev, data->value);
1087         case IW_AUTH_KEY_MGMT:
1088                 return cfg80211_set_key_mgt(wdev, data->value);
1089         case IW_AUTH_CIPHER_PAIRWISE:
1090                 return cfg80211_set_cipher_pairwise(wdev, data->value);
1091         case IW_AUTH_80211_AUTH_ALG:
1092                 return cfg80211_set_auth_alg(wdev, data->value);
1093         case IW_AUTH_WPA_ENABLED:
1094         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1095         case IW_AUTH_DROP_UNENCRYPTED:
1096         case IW_AUTH_MFP:
1097                 return 0;
1098         default:
1099                 return -EOPNOTSUPP;
1100         }
1101 }
1102 EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
1103
1104 int cfg80211_wext_giwauth(struct net_device *dev,
1105                           struct iw_request_info *info,
1106                           struct iw_param *data, char *extra)
1107 {
1108         /* XXX: what do we need? */
1109
1110         return -EOPNOTSUPP;
1111 }
1112 EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
1113
1114 int cfg80211_wext_siwpower(struct net_device *dev,
1115                            struct iw_request_info *info,
1116                            struct iw_param *wrq, char *extra)
1117 {
1118         struct wireless_dev *wdev = dev->ieee80211_ptr;
1119         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1120         bool ps = wdev->ps;
1121         int timeout = wdev->ps_timeout;
1122         int err;
1123
1124         if (wdev->iftype != NL80211_IFTYPE_STATION)
1125                 return -EINVAL;
1126
1127         if (!rdev->ops->set_power_mgmt)
1128                 return -EOPNOTSUPP;
1129
1130         if (wrq->disabled) {
1131                 ps = false;
1132         } else {
1133                 switch (wrq->flags & IW_POWER_MODE) {
1134                 case IW_POWER_ON:       /* If not specified */
1135                 case IW_POWER_MODE:     /* If set all mask */
1136                 case IW_POWER_ALL_R:    /* If explicitely state all */
1137                         ps = true;
1138                         break;
1139                 default:                /* Otherwise we ignore */
1140                         return -EINVAL;
1141                 }
1142
1143                 if (wrq->flags & ~(IW_POWER_MODE | IW_POWER_TIMEOUT))
1144                         return -EINVAL;
1145
1146                 if (wrq->flags & IW_POWER_TIMEOUT)
1147                         timeout = wrq->value / 1000;
1148         }
1149
1150         err = rdev->ops->set_power_mgmt(wdev->wiphy, dev, ps, timeout);
1151         if (err)
1152                 return err;
1153
1154         wdev->ps = ps;
1155         wdev->ps_timeout = timeout;
1156
1157         return 0;
1158
1159 }
1160 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpower);
1161
1162 int cfg80211_wext_giwpower(struct net_device *dev,
1163                            struct iw_request_info *info,
1164                            struct iw_param *wrq, char *extra)
1165 {
1166         struct wireless_dev *wdev = dev->ieee80211_ptr;
1167
1168         wrq->disabled = !wdev->ps;
1169
1170         return 0;
1171 }
1172 EXPORT_SYMBOL_GPL(cfg80211_wext_giwpower);
1173
1174 static int cfg80211_wds_wext_siwap(struct net_device *dev,
1175                                    struct iw_request_info *info,
1176                                    struct sockaddr *addr, char *extra)
1177 {
1178         struct wireless_dev *wdev = dev->ieee80211_ptr;
1179         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1180         int err;
1181
1182         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1183                 return -EINVAL;
1184
1185         if (addr->sa_family != ARPHRD_ETHER)
1186                 return -EINVAL;
1187
1188         if (netif_running(dev))
1189                 return -EBUSY;
1190
1191         if (!rdev->ops->set_wds_peer)
1192                 return -EOPNOTSUPP;
1193
1194         err = rdev->ops->set_wds_peer(wdev->wiphy, dev, (u8 *) &addr->sa_data);
1195         if (err)
1196                 return err;
1197
1198         memcpy(&wdev->wext.bssid, (u8 *) &addr->sa_data, ETH_ALEN);
1199
1200         return 0;
1201 }
1202
1203 static int cfg80211_wds_wext_giwap(struct net_device *dev,
1204                                    struct iw_request_info *info,
1205                                    struct sockaddr *addr, char *extra)
1206 {
1207         struct wireless_dev *wdev = dev->ieee80211_ptr;
1208
1209         if (WARN_ON(wdev->iftype != NL80211_IFTYPE_WDS))
1210                 return -EINVAL;
1211
1212         addr->sa_family = ARPHRD_ETHER;
1213         memcpy(&addr->sa_data, wdev->wext.bssid, ETH_ALEN);
1214
1215         return 0;
1216 }
1217
1218 int cfg80211_wext_siwrate(struct net_device *dev,
1219                           struct iw_request_info *info,
1220                           struct iw_param *rate, char *extra)
1221 {
1222         struct wireless_dev *wdev = dev->ieee80211_ptr;
1223         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1224         struct cfg80211_bitrate_mask mask;
1225         u32 fixed, maxrate;
1226         struct ieee80211_supported_band *sband;
1227         int band, ridx;
1228         bool match = false;
1229
1230         if (!rdev->ops->set_bitrate_mask)
1231                 return -EOPNOTSUPP;
1232
1233         memset(&mask, 0, sizeof(mask));
1234         fixed = 0;
1235         maxrate = (u32)-1;
1236
1237         if (rate->value < 0) {
1238                 /* nothing */
1239         } else if (rate->fixed) {
1240                 fixed = rate->value / 100000;
1241         } else {
1242                 maxrate = rate->value / 100000;
1243         }
1244
1245         for (band = 0; band < IEEE80211_NUM_BANDS; band++) {
1246                 sband = wdev->wiphy->bands[band];
1247                 if (sband == NULL)
1248                         continue;
1249                 for (ridx = 0; ridx < sband->n_bitrates; ridx++) {
1250                         struct ieee80211_rate *srate = &sband->bitrates[ridx];
1251                         if (fixed == srate->bitrate) {
1252                                 mask.control[band].legacy = 1 << ridx;
1253                                 match = true;
1254                                 break;
1255                         }
1256                         if (srate->bitrate <= maxrate) {
1257                                 mask.control[band].legacy |= 1 << ridx;
1258                                 match = true;
1259                         }
1260                 }
1261         }
1262
1263         if (!match)
1264                 return -EINVAL;
1265
1266         return rdev->ops->set_bitrate_mask(wdev->wiphy, dev, NULL, &mask);
1267 }
1268 EXPORT_SYMBOL_GPL(cfg80211_wext_siwrate);
1269
1270 int cfg80211_wext_giwrate(struct net_device *dev,
1271                           struct iw_request_info *info,
1272                           struct iw_param *rate, char *extra)
1273 {
1274         struct wireless_dev *wdev = dev->ieee80211_ptr;
1275         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1276         /* we are under RTNL - globally locked - so can use a static struct */
1277         static struct station_info sinfo;
1278         u8 addr[ETH_ALEN];
1279         int err;
1280
1281         if (wdev->iftype != NL80211_IFTYPE_STATION)
1282                 return -EOPNOTSUPP;
1283
1284         if (!rdev->ops->get_station)
1285                 return -EOPNOTSUPP;
1286
1287         err = 0;
1288         wdev_lock(wdev);
1289         if (wdev->current_bss)
1290                 memcpy(addr, wdev->current_bss->pub.bssid, ETH_ALEN);
1291         else
1292                 err = -EOPNOTSUPP;
1293         wdev_unlock(wdev);
1294         if (err)
1295                 return err;
1296
1297         err = rdev->ops->get_station(&rdev->wiphy, dev, addr, &sinfo);
1298         if (err)
1299                 return err;
1300
1301         if (!(sinfo.filled & STATION_INFO_TX_BITRATE))
1302                 return -EOPNOTSUPP;
1303
1304         rate->value = 100000 * cfg80211_calculate_bitrate(&sinfo.txrate);
1305
1306         return 0;
1307 }
1308 EXPORT_SYMBOL_GPL(cfg80211_wext_giwrate);
1309
1310 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1311 struct iw_statistics *cfg80211_wireless_stats(struct net_device *dev)
1312 {
1313         struct wireless_dev *wdev = dev->ieee80211_ptr;
1314         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1315         /* we are under RTNL - globally locked - so can use static structs */
1316         static struct iw_statistics wstats;
1317         static struct station_info sinfo;
1318         u8 bssid[ETH_ALEN];
1319
1320         if (dev->ieee80211_ptr->iftype != NL80211_IFTYPE_STATION)
1321                 return NULL;
1322
1323         if (!rdev->ops->get_station)
1324                 return NULL;
1325
1326         /* Grab BSSID of current BSS, if any */
1327         wdev_lock(wdev);
1328         if (!wdev->current_bss) {
1329                 wdev_unlock(wdev);
1330                 return NULL;
1331         }
1332         memcpy(bssid, wdev->current_bss->pub.bssid, ETH_ALEN);
1333         wdev_unlock(wdev);
1334
1335         if (rdev->ops->get_station(&rdev->wiphy, dev, bssid, &sinfo))
1336                 return NULL;
1337
1338         memset(&wstats, 0, sizeof(wstats));
1339
1340         switch (rdev->wiphy.signal_type) {
1341         case CFG80211_SIGNAL_TYPE_MBM:
1342                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1343                         int sig = sinfo.signal;
1344                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1345                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1346                         wstats.qual.updated |= IW_QUAL_DBM;
1347                         wstats.qual.level = sig;
1348                         if (sig < -110)
1349                                 sig = -110;
1350                         else if (sig > -40)
1351                                 sig = -40;
1352                         wstats.qual.qual = sig + 110;
1353                         break;
1354                 }
1355         case CFG80211_SIGNAL_TYPE_UNSPEC:
1356                 if (sinfo.filled & STATION_INFO_SIGNAL) {
1357                         wstats.qual.updated |= IW_QUAL_LEVEL_UPDATED;
1358                         wstats.qual.updated |= IW_QUAL_QUAL_UPDATED;
1359                         wstats.qual.level = sinfo.signal;
1360                         wstats.qual.qual = sinfo.signal;
1361                         break;
1362                 }
1363         default:
1364                 wstats.qual.updated |= IW_QUAL_LEVEL_INVALID;
1365                 wstats.qual.updated |= IW_QUAL_QUAL_INVALID;
1366         }
1367
1368         wstats.qual.updated |= IW_QUAL_NOISE_INVALID;
1369         if (sinfo.filled & STATION_INFO_RX_DROP_MISC)
1370                 wstats.discard.misc = sinfo.rx_dropped_misc;
1371         if (sinfo.filled & STATION_INFO_TX_FAILED)
1372                 wstats.discard.retries = sinfo.tx_failed;
1373
1374         return &wstats;
1375 }
1376 EXPORT_SYMBOL_GPL(cfg80211_wireless_stats);
1377
1378 int cfg80211_wext_siwap(struct net_device *dev,
1379                         struct iw_request_info *info,
1380                         struct sockaddr *ap_addr, char *extra)
1381 {
1382         struct wireless_dev *wdev = dev->ieee80211_ptr;
1383
1384         switch (wdev->iftype) {
1385         case NL80211_IFTYPE_ADHOC:
1386                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
1387         case NL80211_IFTYPE_STATION:
1388                 return cfg80211_mgd_wext_siwap(dev, info, ap_addr, extra);
1389         case NL80211_IFTYPE_WDS:
1390                 return cfg80211_wds_wext_siwap(dev, info, ap_addr, extra);
1391         default:
1392                 return -EOPNOTSUPP;
1393         }
1394 }
1395 EXPORT_SYMBOL_GPL(cfg80211_wext_siwap);
1396
1397 int cfg80211_wext_giwap(struct net_device *dev,
1398                         struct iw_request_info *info,
1399                         struct sockaddr *ap_addr, char *extra)
1400 {
1401         struct wireless_dev *wdev = dev->ieee80211_ptr;
1402
1403         switch (wdev->iftype) {
1404         case NL80211_IFTYPE_ADHOC:
1405                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
1406         case NL80211_IFTYPE_STATION:
1407                 return cfg80211_mgd_wext_giwap(dev, info, ap_addr, extra);
1408         case NL80211_IFTYPE_WDS:
1409                 return cfg80211_wds_wext_giwap(dev, info, ap_addr, extra);
1410         default:
1411                 return -EOPNOTSUPP;
1412         }
1413 }
1414 EXPORT_SYMBOL_GPL(cfg80211_wext_giwap);
1415
1416 int cfg80211_wext_siwessid(struct net_device *dev,
1417                            struct iw_request_info *info,
1418                            struct iw_point *data, char *ssid)
1419 {
1420         struct wireless_dev *wdev = dev->ieee80211_ptr;
1421
1422         switch (wdev->iftype) {
1423         case NL80211_IFTYPE_ADHOC:
1424                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
1425         case NL80211_IFTYPE_STATION:
1426                 return cfg80211_mgd_wext_siwessid(dev, info, data, ssid);
1427         default:
1428                 return -EOPNOTSUPP;
1429         }
1430 }
1431 EXPORT_SYMBOL_GPL(cfg80211_wext_siwessid);
1432
1433 int cfg80211_wext_giwessid(struct net_device *dev,
1434                            struct iw_request_info *info,
1435                            struct iw_point *data, char *ssid)
1436 {
1437         struct wireless_dev *wdev = dev->ieee80211_ptr;
1438
1439         data->flags = 0;
1440         data->length = 0;
1441
1442         switch (wdev->iftype) {
1443         case NL80211_IFTYPE_ADHOC:
1444                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
1445         case NL80211_IFTYPE_STATION:
1446                 return cfg80211_mgd_wext_giwessid(dev, info, data, ssid);
1447         default:
1448                 return -EOPNOTSUPP;
1449         }
1450 }
1451 EXPORT_SYMBOL_GPL(cfg80211_wext_giwessid);
1452
1453 int cfg80211_wext_siwpmksa(struct net_device *dev,
1454                            struct iw_request_info *info,
1455                            struct iw_point *data, char *extra)
1456 {
1457         struct wireless_dev *wdev = dev->ieee80211_ptr;
1458         struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
1459         struct cfg80211_pmksa cfg_pmksa;
1460         struct iw_pmksa *pmksa = (struct iw_pmksa *)extra;
1461
1462         memset(&cfg_pmksa, 0, sizeof(struct cfg80211_pmksa));
1463
1464         if (wdev->iftype != NL80211_IFTYPE_STATION)
1465                 return -EINVAL;
1466
1467         cfg_pmksa.bssid = pmksa->bssid.sa_data;
1468         cfg_pmksa.pmkid = pmksa->pmkid;
1469
1470         switch (pmksa->cmd) {
1471         case IW_PMKSA_ADD:
1472                 if (!rdev->ops->set_pmksa)
1473                         return -EOPNOTSUPP;
1474
1475                 return rdev->ops->set_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1476
1477         case IW_PMKSA_REMOVE:
1478                 if (!rdev->ops->del_pmksa)
1479                         return -EOPNOTSUPP;
1480
1481                 return rdev->ops->del_pmksa(&rdev->wiphy, dev, &cfg_pmksa);
1482
1483         case IW_PMKSA_FLUSH:
1484                 if (!rdev->ops->flush_pmksa)
1485                         return -EOPNOTSUPP;
1486
1487                 return rdev->ops->flush_pmksa(&rdev->wiphy, dev);
1488
1489         default:
1490                 return -EOPNOTSUPP;
1491         }
1492 }
1493 EXPORT_SYMBOL_GPL(cfg80211_wext_siwpmksa);
1494
1495 static const iw_handler cfg80211_handlers[] = {
1496         [IW_IOCTL_IDX(SIOCGIWNAME)]     = (iw_handler) cfg80211_wext_giwname,
1497         [IW_IOCTL_IDX(SIOCSIWFREQ)]     = (iw_handler) cfg80211_wext_siwfreq,
1498         [IW_IOCTL_IDX(SIOCGIWFREQ)]     = (iw_handler) cfg80211_wext_giwfreq,
1499         [IW_IOCTL_IDX(SIOCSIWMODE)]     = (iw_handler) cfg80211_wext_siwmode,
1500         [IW_IOCTL_IDX(SIOCGIWMODE)]     = (iw_handler) cfg80211_wext_giwmode,
1501         [IW_IOCTL_IDX(SIOCGIWRANGE)]    = (iw_handler) cfg80211_wext_giwrange,
1502         [IW_IOCTL_IDX(SIOCSIWAP)]       = (iw_handler) cfg80211_wext_siwap,
1503         [IW_IOCTL_IDX(SIOCGIWAP)]       = (iw_handler) cfg80211_wext_giwap,
1504         [IW_IOCTL_IDX(SIOCSIWMLME)]     = (iw_handler) cfg80211_wext_siwmlme,
1505         [IW_IOCTL_IDX(SIOCSIWSCAN)]     = (iw_handler) cfg80211_wext_siwscan,
1506         [IW_IOCTL_IDX(SIOCGIWSCAN)]     = (iw_handler) cfg80211_wext_giwscan,
1507         [IW_IOCTL_IDX(SIOCSIWESSID)]    = (iw_handler) cfg80211_wext_siwessid,
1508         [IW_IOCTL_IDX(SIOCGIWESSID)]    = (iw_handler) cfg80211_wext_giwessid,
1509         [IW_IOCTL_IDX(SIOCSIWRATE)]     = (iw_handler) cfg80211_wext_siwrate,
1510         [IW_IOCTL_IDX(SIOCGIWRATE)]     = (iw_handler) cfg80211_wext_giwrate,
1511         [IW_IOCTL_IDX(SIOCSIWRTS)]      = (iw_handler) cfg80211_wext_siwrts,
1512         [IW_IOCTL_IDX(SIOCGIWRTS)]      = (iw_handler) cfg80211_wext_giwrts,
1513         [IW_IOCTL_IDX(SIOCSIWFRAG)]     = (iw_handler) cfg80211_wext_siwfrag,
1514         [IW_IOCTL_IDX(SIOCGIWFRAG)]     = (iw_handler) cfg80211_wext_giwfrag,
1515         [IW_IOCTL_IDX(SIOCSIWTXPOW)]    = (iw_handler) cfg80211_wext_siwtxpower,
1516         [IW_IOCTL_IDX(SIOCGIWTXPOW)]    = (iw_handler) cfg80211_wext_giwtxpower,
1517         [IW_IOCTL_IDX(SIOCSIWRETRY)]    = (iw_handler) cfg80211_wext_siwretry,
1518         [IW_IOCTL_IDX(SIOCGIWRETRY)]    = (iw_handler) cfg80211_wext_giwretry,
1519         [IW_IOCTL_IDX(SIOCSIWENCODE)]   = (iw_handler) cfg80211_wext_siwencode,
1520         [IW_IOCTL_IDX(SIOCGIWENCODE)]   = (iw_handler) cfg80211_wext_giwencode,
1521         [IW_IOCTL_IDX(SIOCSIWPOWER)]    = (iw_handler) cfg80211_wext_siwpower,
1522         [IW_IOCTL_IDX(SIOCGIWPOWER)]    = (iw_handler) cfg80211_wext_giwpower,
1523         [IW_IOCTL_IDX(SIOCSIWGENIE)]    = (iw_handler) cfg80211_wext_siwgenie,
1524         [IW_IOCTL_IDX(SIOCSIWAUTH)]     = (iw_handler) cfg80211_wext_siwauth,
1525         [IW_IOCTL_IDX(SIOCGIWAUTH)]     = (iw_handler) cfg80211_wext_giwauth,
1526         [IW_IOCTL_IDX(SIOCSIWENCODEEXT)]= (iw_handler) cfg80211_wext_siwencodeext,
1527         [IW_IOCTL_IDX(SIOCSIWPMKSA)]    = (iw_handler) cfg80211_wext_siwpmksa,
1528 };
1529
1530 const struct iw_handler_def cfg80211_wext_handler = {
1531         .num_standard           = ARRAY_SIZE(cfg80211_handlers),
1532         .standard               = cfg80211_handlers,
1533         .get_wireless_stats = cfg80211_wireless_stats,
1534 };