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cfg80211: Advertise ciphers via WE according to driver capability
[GitHub/mt8127/android_kernel_alcatel_ttab.git] / net / wireless / wext-compat.c
CommitLineData
fee52678
JB		 1/*
2 * cfg80211 - wext compat code
3 *
4 * This is temporary code until all wireless functionality is migrated
5 * into cfg80211, when that happens all the exports here go away and
6 * we directly assign the wireless handlers of wireless interfaces.
7 *
08645126 8 * Copyright 2008-2009 Johannes Berg <johannes@sipsolutions.net>
fee52678
JB		 9 */
10
11#include <linux/wireless.h>
12#include <linux/nl80211.h>
691597cb 13#include <linux/if_arp.h>
08645126 14#include <linux/etherdevice.h>
fee52678 15#include <net/iw_handler.h>
fee52678
JB		 16#include <net/cfg80211.h>
17#include "core.h"
18
19int cfg80211_wext_giwname(struct net_device *dev,
20 struct iw_request_info *info,
21 char *name, char *extra)
22{
23 struct wireless_dev *wdev = dev->ieee80211_ptr;
24 struct ieee80211_supported_band *sband;
25 bool is_ht = false, is_a = false, is_b = false, is_g = false;
26
27 if (!wdev)
28 return -EOPNOTSUPP;
29
30 sband = wdev->wiphy->bands[IEEE80211_BAND_5GHZ];
31 if (sband) {
32 is_a = true;
33 is_ht |= sband->ht_cap.ht_supported;
34 }
35
36 sband = wdev->wiphy->bands[IEEE80211_BAND_2GHZ];
37 if (sband) {
38 int i;
39 /* Check for mandatory rates */
40 for (i = 0; i < sband->n_bitrates; i++) {
41 if (sband->bitrates[i].bitrate == 10)
42 is_b = true;
43 if (sband->bitrates[i].bitrate == 60)
44 is_g = true;
45 }
46 is_ht |= sband->ht_cap.ht_supported;
47 }
48
49 strcpy(name, "IEEE 802.11");
50 if (is_a)
51 strcat(name, "a");
52 if (is_b)
53 strcat(name, "b");
54 if (is_g)
55 strcat(name, "g");
56 if (is_ht)
57 strcat(name, "n");
58
59 return 0;
60}
ba44cb72 61EXPORT_SYMBOL_GPL(cfg80211_wext_giwname);
e60c7744
JB		 62
63int cfg80211_wext_siwmode(struct net_device *dev, struct iw_request_info *info,
64 u32 *mode, char *extra)
65{
66 struct wireless_dev *wdev = dev->ieee80211_ptr;
67 struct cfg80211_registered_device *rdev;
68 struct vif_params vifparams;
69 enum nl80211_iftype type;
ac7f9cfa 70 int ret;
e60c7744
JB		 71
72 if (!wdev)
73 return -EOPNOTSUPP;
74
75 rdev = wiphy_to_dev(wdev->wiphy);
76
77 if (!rdev->ops->change_virtual_intf)
78 return -EOPNOTSUPP;
79
80 /* don't support changing VLANs, you just re-create them */
81 if (wdev->iftype == NL80211_IFTYPE_AP_VLAN)
82 return -EOPNOTSUPP;
83
84 switch (*mode) {
85 case IW_MODE_INFRA:
86 type = NL80211_IFTYPE_STATION;
87 break;
88 case IW_MODE_ADHOC:
89 type = NL80211_IFTYPE_ADHOC;
90 break;
91 case IW_MODE_REPEAT:
92 type = NL80211_IFTYPE_WDS;
93 break;
94 case IW_MODE_MONITOR:
95 type = NL80211_IFTYPE_MONITOR;
96 break;
97 default:
98 return -EINVAL;
99 }
100
ac7f9cfa
JB		 101 if (type == wdev->iftype)
102 return 0;
103
e60c7744
JB		 104 memset(&vifparams, 0, sizeof(vifparams));
105
e36d56b6 106 ret = rdev->ops->change_virtual_intf(wdev->wiphy, dev, type,
ac7f9cfa
JB		 107 NULL, &vifparams);
108 WARN_ON(!ret && wdev->iftype != type);
109
110 return ret;
e60c7744 111}
ba44cb72 112EXPORT_SYMBOL_GPL(cfg80211_wext_siwmode);
e60c7744
JB		 113
114int cfg80211_wext_giwmode(struct net_device *dev, struct iw_request_info *info,
115 u32 *mode, char *extra)
116{
117 struct wireless_dev *wdev = dev->ieee80211_ptr;
118
119 if (!wdev)
120 return -EOPNOTSUPP;
121
122 switch (wdev->iftype) {
123 case NL80211_IFTYPE_AP:
124 *mode = IW_MODE_MASTER;
125 break;
126 case NL80211_IFTYPE_STATION:
127 *mode = IW_MODE_INFRA;
128 break;
129 case NL80211_IFTYPE_ADHOC:
130 *mode = IW_MODE_ADHOC;
131 break;
132 case NL80211_IFTYPE_MONITOR:
133 *mode = IW_MODE_MONITOR;
134 break;
135 case NL80211_IFTYPE_WDS:
136 *mode = IW_MODE_REPEAT;
137 break;
138 case NL80211_IFTYPE_AP_VLAN:
139 *mode = IW_MODE_SECOND; /* FIXME */
140 break;
141 default:
142 *mode = IW_MODE_AUTO;
143 break;
144 }
145 return 0;
146}
ba44cb72 147EXPORT_SYMBOL_GPL(cfg80211_wext_giwmode);
4aa188e1
JB		 148
149
150int cfg80211_wext_giwrange(struct net_device *dev,
151 struct iw_request_info *info,
152 struct iw_point *data, char *extra)
153{
154 struct wireless_dev *wdev = dev->ieee80211_ptr;
155 struct iw_range *range = (struct iw_range *) extra;
156 enum ieee80211_band band;
157 int c = 0;
158
159 if (!wdev)
160 return -EOPNOTSUPP;
161
162 data->length = sizeof(struct iw_range);
163 memset(range, 0, sizeof(struct iw_range));
164
165 range->we_version_compiled = WIRELESS_EXT;
166 range->we_version_source = 21;
167 range->retry_capa = IW_RETRY_LIMIT;
168 range->retry_flags = IW_RETRY_LIMIT;
169 range->min_retry = 0;
170 range->max_retry = 255;
171 range->min_rts = 0;
172 range->max_rts = 2347;
173 range->min_frag = 256;
174 range->max_frag = 2346;
175
176 range->encoding_size[0] = 5;
177 range->encoding_size[1] = 13;
178 range->num_encoding_sizes = 2;
179 range->max_encoding_tokens = 4;
180
181 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
182
183 switch (wdev->wiphy->signal_type) {
184 case CFG80211_SIGNAL_TYPE_NONE:
185 break;
186 case CFG80211_SIGNAL_TYPE_MBM:
187 range->max_qual.level = -110;
188 range->max_qual.qual = 70;
189 range->avg_qual.qual = 35;
190 range->max_qual.updated |= IW_QUAL_DBM;
191 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
192 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
193 break;
194 case CFG80211_SIGNAL_TYPE_UNSPEC:
195 range->max_qual.level = 100;
196 range->max_qual.qual = 100;
197 range->avg_qual.qual = 50;
198 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
199 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
200 break;
201 }
202
203 range->avg_qual.level = range->max_qual.level / 2;
204 range->avg_qual.noise = range->max_qual.noise / 2;
205 range->avg_qual.updated = range->max_qual.updated;
206
3daf0975
DK		 207 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2;
208
209 for (c = 0; c < wdev->wiphy->n_cipher_suites; c++) {
210 switch (wdev->wiphy->cipher_suites[c]) {
211 case WLAN_CIPHER_SUITE_TKIP:
212 range->enc_capa |= IW_ENC_CAPA_CIPHER_TKIP;
213 break;
214
215 case WLAN_CIPHER_SUITE_CCMP:
216 range->enc_capa |= IW_ENC_CAPA_CIPHER_CCMP;
217 break;
218 }
219 }
4aa188e1 220
4aa188e1
JB		 221 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
222 int i;
223 struct ieee80211_supported_band *sband;
224
225 sband = wdev->wiphy->bands[band];
226
227 if (!sband)
228 continue;
229
230 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
231 struct ieee80211_channel *chan = &sband->channels[i];
232
233 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
234 range->freq[c].i =
235 ieee80211_frequency_to_channel(
236 chan->center_freq);
237 range->freq[c].m = chan->center_freq;
238 range->freq[c].e = 6;
239 c++;
240 }
241 }
242 }
243 range->num_channels = c;
244 range->num_frequency = c;
245
246 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
247 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
248 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
249
250 range->scan_capa |= IW_SCAN_CAPA_ESSID;
251
252 return 0;
253}
ba44cb72 254EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
691597cb
JB		 255
256int cfg80211_wext_siwmlme(struct net_device *dev,
257 struct iw_request_info *info,
258 struct iw_point *data, char *extra)
259{
260 struct wireless_dev *wdev = dev->ieee80211_ptr;
261 struct iw_mlme *mlme = (struct iw_mlme *)extra;
262 struct cfg80211_registered_device *rdev;
263 union {
264 struct cfg80211_disassoc_request disassoc;
265 struct cfg80211_deauth_request deauth;
266 } cmd;
267
268 if (!wdev)
269 return -EOPNOTSUPP;
270
271 rdev = wiphy_to_dev(wdev->wiphy);
272
273 if (wdev->iftype != NL80211_IFTYPE_STATION)
274 return -EINVAL;
275
276 if (mlme->addr.sa_family != ARPHRD_ETHER)
277 return -EINVAL;
278
279 memset(&cmd, 0, sizeof(cmd));
280
281 switch (mlme->cmd) {
282 case IW_MLME_DEAUTH:
283 if (!rdev->ops->deauth)
284 return -EOPNOTSUPP;
285 cmd.deauth.peer_addr = mlme->addr.sa_data;
286 cmd.deauth.reason_code = mlme->reason_code;
287 return rdev->ops->deauth(wdev->wiphy, dev, &cmd.deauth);
288 case IW_MLME_DISASSOC:
289 if (!rdev->ops->disassoc)
290 return -EOPNOTSUPP;
291 cmd.disassoc.peer_addr = mlme->addr.sa_data;
292 cmd.disassoc.reason_code = mlme->reason_code;
293 return rdev->ops->disassoc(wdev->wiphy, dev, &cmd.disassoc);
294 default:
295 return -EOPNOTSUPP;
296 }
297}
ba44cb72 298EXPORT_SYMBOL_GPL(cfg80211_wext_siwmlme);
04a773ad
JB		 299
300
301/**
302 * cfg80211_wext_freq - get wext frequency for non-"auto"
303 * @wiphy: the wiphy
304 * @freq: the wext freq encoding
305 *
306 * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
307 */
308struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
309 struct iw_freq *freq)
310{
0b258582
JB		 311 struct ieee80211_channel *chan;
312 int f;
313
314 /*
315 * Parse frequency - return NULL for auto and
316 * -EINVAL for impossible things.
317 */
04a773ad
JB		 318 if (freq->e == 0) {
319 if (freq->m < 0)
320 return NULL;
0b258582 321 f = ieee80211_channel_to_frequency(freq->m);
04a773ad
JB		 322 } else {
323 int i, div = 1000000;
324 for (i = 0; i < freq->e; i++)
325 div /= 10;
0b258582 326 if (div <= 0)
04a773ad 327 return ERR_PTR(-EINVAL);
0b258582 328 f = freq->m / div;
04a773ad
JB		 329 }
330
0b258582
JB		 331 /*
332 * Look up channel struct and return -EINVAL when
333 * it cannot be found.
334 */
335 chan = ieee80211_get_channel(wiphy, f);
336 if (!chan)
337 return ERR_PTR(-EINVAL);
338 return chan;
04a773ad 339}
ba44cb72 340EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
b9a5f8ca
JM		 341
342int cfg80211_wext_siwrts(struct net_device *dev,
343 struct iw_request_info *info,
344 struct iw_param *rts, char *extra)
345{
346 struct wireless_dev *wdev = dev->ieee80211_ptr;
347 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
348 u32 orts = wdev->wiphy->rts_threshold;
349 int err;
350
351 if (rts->disabled || !rts->fixed)
352 wdev->wiphy->rts_threshold = (u32) -1;
353 else if (rts->value < 0)
354 return -EINVAL;
355 else
356 wdev->wiphy->rts_threshold = rts->value;
357
358 err = rdev->ops->set_wiphy_params(wdev->wiphy,
359 WIPHY_PARAM_RTS_THRESHOLD);
360 if (err)
361 wdev->wiphy->rts_threshold = orts;
362
363 return err;
364}
ba44cb72 365EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
b9a5f8ca
JM		 366
367int cfg80211_wext_giwrts(struct net_device *dev,
368 struct iw_request_info *info,
369 struct iw_param *rts, char *extra)
370{
371 struct wireless_dev *wdev = dev->ieee80211_ptr;
372
373 rts->value = wdev->wiphy->rts_threshold;
374 rts->disabled = rts->value == (u32) -1;
375 rts->fixed = 1;
376
377 return 0;
378}
ba44cb72 379EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
b9a5f8ca
JM		 380
381int cfg80211_wext_siwfrag(struct net_device *dev,
382 struct iw_request_info *info,
383 struct iw_param *frag, char *extra)
384{
385 struct wireless_dev *wdev = dev->ieee80211_ptr;
386 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
387 u32 ofrag = wdev->wiphy->frag_threshold;
388 int err;
389
390 if (frag->disabled || !frag->fixed)
391 wdev->wiphy->frag_threshold = (u32) -1;
392 else if (frag->value < 256)
393 return -EINVAL;
394 else {
395 /* Fragment length must be even, so strip LSB. */
396 wdev->wiphy->frag_threshold = frag->value & ~0x1;
397 }
398
399 err = rdev->ops->set_wiphy_params(wdev->wiphy,
400 WIPHY_PARAM_FRAG_THRESHOLD);
401 if (err)
402 wdev->wiphy->frag_threshold = ofrag;
403
404 return err;
405}
ba44cb72 406EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
b9a5f8ca
JM		 407
408int cfg80211_wext_giwfrag(struct net_device *dev,
409 struct iw_request_info *info,
410 struct iw_param *frag, char *extra)
411{
412 struct wireless_dev *wdev = dev->ieee80211_ptr;
413
414 frag->value = wdev->wiphy->frag_threshold;
415 frag->disabled = frag->value == (u32) -1;
416 frag->fixed = 1;
417
418 return 0;
419}
ba44cb72 420EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
b9a5f8ca
JM		 421
422int cfg80211_wext_siwretry(struct net_device *dev,
423 struct iw_request_info *info,
424 struct iw_param *retry, char *extra)
425{
426 struct wireless_dev *wdev = dev->ieee80211_ptr;
427 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
428 u32 changed = 0;
429 u8 olong = wdev->wiphy->retry_long;
430 u8 oshort = wdev->wiphy->retry_short;
431 int err;
432
433 if (retry->disabled ||
434 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
435 return -EINVAL;
436
437 if (retry->flags & IW_RETRY_LONG) {
438 wdev->wiphy->retry_long = retry->value;
439 changed |= WIPHY_PARAM_RETRY_LONG;
440 } else if (retry->flags & IW_RETRY_SHORT) {
441 wdev->wiphy->retry_short = retry->value;
442 changed |= WIPHY_PARAM_RETRY_SHORT;
443 } else {
444 wdev->wiphy->retry_short = retry->value;
445 wdev->wiphy->retry_long = retry->value;
446 changed |= WIPHY_PARAM_RETRY_LONG;
447 changed |= WIPHY_PARAM_RETRY_SHORT;
448 }
449
450 if (!changed)
451 return 0;
452
453 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
454 if (err) {
455 wdev->wiphy->retry_short = oshort;
456 wdev->wiphy->retry_long = olong;
457 }
458
459 return err;
460}
ba44cb72 461EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
b9a5f8ca
JM		 462
463int cfg80211_wext_giwretry(struct net_device *dev,
464 struct iw_request_info *info,
465 struct iw_param *retry, char *extra)
466{
467 struct wireless_dev *wdev = dev->ieee80211_ptr;
468
469 retry->disabled = 0;
470
471 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
472 /*
473 * First return short value, iwconfig will ask long value
474 * later if needed
475 */
476 retry->flags |= IW_RETRY_LIMIT;
477 retry->value = wdev->wiphy->retry_short;
478 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
479 retry->flags |= IW_RETRY_LONG;
480
481 return 0;
482 }
483
484 if (retry->flags & IW_RETRY_LONG) {
485 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
486 retry->value = wdev->wiphy->retry_long;
487 }
488
489 return 0;
490}
ba44cb72 491EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
08645126
JB		 492
493static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
494 struct net_device *dev, const u8 *addr,
495 bool remove, bool tx_key, int idx,
496 struct key_params *params)
497{
498 struct wireless_dev *wdev = dev->ieee80211_ptr;
499 int err;
500
501 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
502 if (!rdev->ops->set_default_mgmt_key)
503 return -EOPNOTSUPP;
504
505 if (idx < 4 || idx > 5)
506 return -EINVAL;
507 } else if (idx < 0 || idx > 3)
508 return -EINVAL;
509
510 if (remove) {
511 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
512 if (!err) {
513 if (idx == wdev->wext.default_key)
514 wdev->wext.default_key = -1;
515 else if (idx == wdev->wext.default_mgmt_key)
516 wdev->wext.default_mgmt_key = -1;
517 }
e3da574a
JB		 518 /*
519 * Applications using wireless extensions expect to be
520 * able to delete keys that don't exist, so allow that.
521 */
522 if (err == -ENOENT)
523 return 0;
524
08645126
JB		 525 return err;
526 } else {
527 if (addr)
528 tx_key = false;
529
530 if (cfg80211_validate_key_settings(params, idx, addr))
531 return -EINVAL;
532
533 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
534 if (err)
535 return err;
536
537 if (tx_key || (!addr && wdev->wext.default_key == -1)) {
538 err = rdev->ops->set_default_key(&rdev->wiphy,
539 dev, idx);
540 if (!err)
541 wdev->wext.default_key = idx;
542 return err;
543 }
544
545 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
546 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
547 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
548 dev, idx);
549 if (!err)
550 wdev->wext.default_mgmt_key = idx;
551 return err;
552 }
553
554 return 0;
555 }
556}
557
558int cfg80211_wext_siwencode(struct net_device *dev,
559 struct iw_request_info *info,
560 struct iw_point *erq, char *keybuf)
561{
562 struct wireless_dev *wdev = dev->ieee80211_ptr;
563 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
564 int idx, err;
565 bool remove = false;
566 struct key_params params;
567
568 /* no use -- only MFP (set_default_mgmt_key) is optional */
569 if (!rdev->ops->del_key ||
570 !rdev->ops->add_key ||
571 !rdev->ops->set_default_key)
572 return -EOPNOTSUPP;
573
574 idx = erq->flags & IW_ENCODE_INDEX;
575 if (idx == 0) {
576 idx = wdev->wext.default_key;
577 if (idx < 0)
578 idx = 0;
579 } else if (idx < 1 || idx > 4)
580 return -EINVAL;
581 else
582 idx--;
583
584 if (erq->flags & IW_ENCODE_DISABLED)
585 remove = true;
586 else if (erq->length == 0) {
587 /* No key data - just set the default TX key index */
588 err = rdev->ops->set_default_key(&rdev->wiphy, dev, idx);
589 if (!err)
590 wdev->wext.default_key = idx;
591 return err;
592 }
593
594 memset(&params, 0, sizeof(params));
595 params.key = keybuf;
596 params.key_len = erq->length;
597 if (erq->length == 5)
598 params.cipher = WLAN_CIPHER_SUITE_WEP40;
599 else if (erq->length == 13)
600 params.cipher = WLAN_CIPHER_SUITE_WEP104;
601 else if (!remove)
602 return -EINVAL;
603
604 return cfg80211_set_encryption(rdev, dev, NULL, remove,
605 wdev->wext.default_key == -1,
606 idx, &params);
607}
608EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
609
610int cfg80211_wext_siwencodeext(struct net_device *dev,
611 struct iw_request_info *info,
612 struct iw_point *erq, char *extra)
613{
614 struct wireless_dev *wdev = dev->ieee80211_ptr;
615 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
616 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
617 const u8 *addr;
618 int idx;
619 bool remove = false;
620 struct key_params params;
621 u32 cipher;
622
623 /* no use -- only MFP (set_default_mgmt_key) is optional */
624 if (!rdev->ops->del_key ||
625 !rdev->ops->add_key ||
626 !rdev->ops->set_default_key)
627 return -EOPNOTSUPP;
628
629 switch (ext->alg) {
630 case IW_ENCODE_ALG_NONE:
631 remove = true;
632 cipher = 0;
633 break;
634 case IW_ENCODE_ALG_WEP:
635 if (ext->key_len == 5)
636 cipher = WLAN_CIPHER_SUITE_WEP40;
637 else if (ext->key_len == 13)
638 cipher = WLAN_CIPHER_SUITE_WEP104;
639 else
640 return -EINVAL;
641 break;
642 case IW_ENCODE_ALG_TKIP:
643 cipher = WLAN_CIPHER_SUITE_TKIP;
644 break;
645 case IW_ENCODE_ALG_CCMP:
646 cipher = WLAN_CIPHER_SUITE_CCMP;
647 break;
648 case IW_ENCODE_ALG_AES_CMAC:
649 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
650 break;
651 default:
652 return -EOPNOTSUPP;
653 }
654
655 if (erq->flags & IW_ENCODE_DISABLED)
656 remove = true;
657
658 idx = erq->flags & IW_ENCODE_INDEX;
659 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
660 if (idx < 4 || idx > 5) {
661 idx = wdev->wext.default_mgmt_key;
662 if (idx < 0)
663 return -EINVAL;
664 } else
665 idx--;
666 } else {
667 if (idx < 1 || idx > 4) {
668 idx = wdev->wext.default_key;
669 if (idx < 0)
670 return -EINVAL;
671 } else
672 idx--;
673 }
674
675 addr = ext->addr.sa_data;
676 if (is_broadcast_ether_addr(addr))
677 addr = NULL;
678
679 memset(&params, 0, sizeof(params));
680 params.key = ext->key;
681 params.key_len = ext->key_len;
682 params.cipher = cipher;
683
faa8fdc8
JM		 684 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
685 params.seq = ext->rx_seq;
686 params.seq_len = 6;
687 }
688
08645126
JB		 689 return cfg80211_set_encryption(
690 rdev, dev, addr, remove,
691 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
692 idx, &params);
693}
694EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
695
696struct giwencode_cookie {
697 size_t buflen;
698 char *keybuf;
699};
700
701static void giwencode_get_key_cb(void *cookie, struct key_params *params)
702{
703 struct giwencode_cookie *data = cookie;
704
705 if (!params->key) {
706 data->buflen = 0;
707 return;
708 }
709
710 data->buflen = min_t(size_t, data->buflen, params->key_len);
711 memcpy(data->keybuf, params->key, data->buflen);
712}
713
714int cfg80211_wext_giwencode(struct net_device *dev,
715 struct iw_request_info *info,
716 struct iw_point *erq, char *keybuf)
717{
718 struct wireless_dev *wdev = dev->ieee80211_ptr;
719 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
720 int idx, err;
721 struct giwencode_cookie data = {
722 .keybuf = keybuf,
723 .buflen = erq->length,
724 };
725
726 if (!rdev->ops->get_key)
727 return -EOPNOTSUPP;
728
729 idx = erq->flags & IW_ENCODE_INDEX;
730 if (idx == 0) {
731 idx = wdev->wext.default_key;
732 if (idx < 0)
733 idx = 0;
734 } else if (idx < 1 || idx > 4)
735 return -EINVAL;
736 else
737 idx--;
738
739 erq->flags = idx + 1;
740
741 err = rdev->ops->get_key(&rdev->wiphy, dev, idx, NULL, &data,
742 giwencode_get_key_cb);
743 if (!err) {
744 erq->length = data.buflen;
745 erq->flags |= IW_ENCODE_ENABLED;
746 return 0;
747 }
748
749 if (err == -ENOENT) {
750 erq->flags |= IW_ENCODE_DISABLED;
751 erq->length = 0;
752 return 0;
753 }
754
755 return err;
756}
757EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
7643a2c3
JB		 758
759int cfg80211_wext_siwtxpower(struct net_device *dev,
760 struct iw_request_info *info,
761 union iwreq_data *data, char *extra)
762{
763 struct wireless_dev *wdev = dev->ieee80211_ptr;
764 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
765 enum tx_power_setting type;
766 int dbm = 0;
767
768 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
769 return -EINVAL;
770 if (data->txpower.flags & IW_TXPOW_RANGE)
771 return -EINVAL;
772
773 if (!rdev->ops->set_tx_power)
774 return -EOPNOTSUPP;
775
776 /* only change when not disabling */
777 if (!data->txpower.disabled) {
1f87f7d3
JB		 778 rfkill_set_sw_state(rdev->rfkill, false);
779
7643a2c3
JB		 780 if (data->txpower.fixed) {
781 /*
782 * wext doesn't support negative values, see
783 * below where it's for automatic
784 */
785 if (data->txpower.value < 0)
786 return -EINVAL;
787 dbm = data->txpower.value;
788 type = TX_POWER_FIXED;
789 /* TODO: do regulatory check! */
790 } else {
791 /*
792 * Automatic power level setting, max being the value
793 * passed in from userland.
794 */
795 if (data->txpower.value < 0) {
796 type = TX_POWER_AUTOMATIC;
797 } else {
798 dbm = data->txpower.value;
799 type = TX_POWER_LIMITED;
800 }
801 }
802 } else {
1f87f7d3
JB		 803 rfkill_set_sw_state(rdev->rfkill, true);
804 schedule_work(&rdev->rfkill_sync);
805 return 0;
7643a2c3
JB		 806 }
807
808 return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
809}
810EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
811
812int cfg80211_wext_giwtxpower(struct net_device *dev,
813 struct iw_request_info *info,
814 union iwreq_data *data, char *extra)
815{
816 struct wireless_dev *wdev = dev->ieee80211_ptr;
817 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
818 int err, val;
819
820 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
821 return -EINVAL;
822 if (data->txpower.flags & IW_TXPOW_RANGE)
823 return -EINVAL;
824
825 if (!rdev->ops->get_tx_power)
826 return -EOPNOTSUPP;
827
828 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
1f87f7d3 829 if (err)
7643a2c3
JB		 830 return err;
831
832 /* well... oh well */
833 data->txpower.fixed = 1;
1f87f7d3 834 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
7643a2c3
JB		 835 data->txpower.value = val;
836 data->txpower.flags = IW_TXPOW_DBM;
837
838 return 0;
839}
840EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
kernel source for telekom puls (alcatel/mediatek)