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cfg80211: managed mode wext compatibility
[net-next-2.6.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
4aa188e1
JB		 176 range->max_encoding_tokens = 4;
177
178 range->max_qual.updated = IW_QUAL_NOISE_INVALID;
179
180 switch (wdev->wiphy->signal_type) {
181 case CFG80211_SIGNAL_TYPE_NONE:
182 break;
183 case CFG80211_SIGNAL_TYPE_MBM:
184 range->max_qual.level = -110;
185 range->max_qual.qual = 70;
186 range->avg_qual.qual = 35;
187 range->max_qual.updated |= IW_QUAL_DBM;
188 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
189 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
190 break;
191 case CFG80211_SIGNAL_TYPE_UNSPEC:
192 range->max_qual.level = 100;
193 range->max_qual.qual = 100;
194 range->avg_qual.qual = 50;
195 range->max_qual.updated |= IW_QUAL_QUAL_UPDATED;
196 range->max_qual.updated |= IW_QUAL_LEVEL_UPDATED;
197 break;
198 }
199
200 range->avg_qual.level = range->max_qual.level / 2;
201 range->avg_qual.noise = range->max_qual.noise / 2;
202 range->avg_qual.updated = range->max_qual.updated;
203
3daf0975
DK		 204 for (c = 0; c < wdev->wiphy->n_cipher_suites; c++) {
205 switch (wdev->wiphy->cipher_suites[c]) {
206 case WLAN_CIPHER_SUITE_TKIP:
27bea66c
DK		 207 range->enc_capa |= (IW_ENC_CAPA_CIPHER_TKIP |
208 IW_ENC_CAPA_WPA);
3daf0975
DK		 209 break;
210
211 case WLAN_CIPHER_SUITE_CCMP:
27bea66c
DK		 212 range->enc_capa |= (IW_ENC_CAPA_CIPHER_CCMP |
213 IW_ENC_CAPA_WPA2);
3daf0975 214 break;
2ab658f9
DK		 215
216 case WLAN_CIPHER_SUITE_WEP40:
217 range->encoding_size[range->num_encoding_sizes++] =
218 WLAN_KEY_LEN_WEP40;
219 break;
220
221 case WLAN_CIPHER_SUITE_WEP104:
222 range->encoding_size[range->num_encoding_sizes++] =
223 WLAN_KEY_LEN_WEP104;
224 break;
3daf0975
DK		 225 }
226 }
4aa188e1 227
4aa188e1
JB		 228 for (band = 0; band < IEEE80211_NUM_BANDS; band ++) {
229 int i;
230 struct ieee80211_supported_band *sband;
231
232 sband = wdev->wiphy->bands[band];
233
234 if (!sband)
235 continue;
236
237 for (i = 0; i < sband->n_channels && c < IW_MAX_FREQUENCIES; i++) {
238 struct ieee80211_channel *chan = &sband->channels[i];
239
240 if (!(chan->flags & IEEE80211_CHAN_DISABLED)) {
241 range->freq[c].i =
242 ieee80211_frequency_to_channel(
243 chan->center_freq);
244 range->freq[c].m = chan->center_freq;
245 range->freq[c].e = 6;
246 c++;
247 }
248 }
249 }
250 range->num_channels = c;
251 range->num_frequency = c;
252
253 IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
254 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
255 IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
256
51cd4aab
DK		 257 if (wdev->wiphy->max_scan_ssids > 0)
258 range->scan_capa |= IW_SCAN_CAPA_ESSID;
4aa188e1
JB		 259
260 return 0;
261}
ba44cb72 262EXPORT_SYMBOL_GPL(cfg80211_wext_giwrange);
691597cb 263
04a773ad
JB		 264
265/**
266 * cfg80211_wext_freq - get wext frequency for non-"auto"
267 * @wiphy: the wiphy
268 * @freq: the wext freq encoding
269 *
270 * Returns a channel, %NULL for auto, or an ERR_PTR for errors!
271 */
272struct ieee80211_channel *cfg80211_wext_freq(struct wiphy *wiphy,
273 struct iw_freq *freq)
274{
0b258582
JB		 275 struct ieee80211_channel *chan;
276 int f;
277
278 /*
279 * Parse frequency - return NULL for auto and
280 * -EINVAL for impossible things.
281 */
04a773ad
JB		 282 if (freq->e == 0) {
283 if (freq->m < 0)
284 return NULL;
0b258582 285 f = ieee80211_channel_to_frequency(freq->m);
04a773ad
JB		 286 } else {
287 int i, div = 1000000;
288 for (i = 0; i < freq->e; i++)
289 div /= 10;
0b258582 290 if (div <= 0)
04a773ad 291 return ERR_PTR(-EINVAL);
0b258582 292 f = freq->m / div;
04a773ad
JB		 293 }
294
0b258582
JB		 295 /*
296 * Look up channel struct and return -EINVAL when
297 * it cannot be found.
298 */
299 chan = ieee80211_get_channel(wiphy, f);
300 if (!chan)
301 return ERR_PTR(-EINVAL);
302 return chan;
04a773ad 303}
ba44cb72 304EXPORT_SYMBOL_GPL(cfg80211_wext_freq);
b9a5f8ca
JM		 305
306int cfg80211_wext_siwrts(struct net_device *dev,
307 struct iw_request_info *info,
308 struct iw_param *rts, char *extra)
309{
310 struct wireless_dev *wdev = dev->ieee80211_ptr;
311 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
312 u32 orts = wdev->wiphy->rts_threshold;
313 int err;
314
315 if (rts->disabled || !rts->fixed)
316 wdev->wiphy->rts_threshold = (u32) -1;
317 else if (rts->value < 0)
318 return -EINVAL;
319 else
320 wdev->wiphy->rts_threshold = rts->value;
321
322 err = rdev->ops->set_wiphy_params(wdev->wiphy,
323 WIPHY_PARAM_RTS_THRESHOLD);
324 if (err)
325 wdev->wiphy->rts_threshold = orts;
326
327 return err;
328}
ba44cb72 329EXPORT_SYMBOL_GPL(cfg80211_wext_siwrts);
b9a5f8ca
JM		 330
331int cfg80211_wext_giwrts(struct net_device *dev,
332 struct iw_request_info *info,
333 struct iw_param *rts, char *extra)
334{
335 struct wireless_dev *wdev = dev->ieee80211_ptr;
336
337 rts->value = wdev->wiphy->rts_threshold;
338 rts->disabled = rts->value == (u32) -1;
339 rts->fixed = 1;
340
341 return 0;
342}
ba44cb72 343EXPORT_SYMBOL_GPL(cfg80211_wext_giwrts);
b9a5f8ca
JM		 344
345int cfg80211_wext_siwfrag(struct net_device *dev,
346 struct iw_request_info *info,
347 struct iw_param *frag, char *extra)
348{
349 struct wireless_dev *wdev = dev->ieee80211_ptr;
350 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
351 u32 ofrag = wdev->wiphy->frag_threshold;
352 int err;
353
354 if (frag->disabled || !frag->fixed)
355 wdev->wiphy->frag_threshold = (u32) -1;
356 else if (frag->value < 256)
357 return -EINVAL;
358 else {
359 /* Fragment length must be even, so strip LSB. */
360 wdev->wiphy->frag_threshold = frag->value & ~0x1;
361 }
362
363 err = rdev->ops->set_wiphy_params(wdev->wiphy,
364 WIPHY_PARAM_FRAG_THRESHOLD);
365 if (err)
366 wdev->wiphy->frag_threshold = ofrag;
367
368 return err;
369}
ba44cb72 370EXPORT_SYMBOL_GPL(cfg80211_wext_siwfrag);
b9a5f8ca
JM		 371
372int cfg80211_wext_giwfrag(struct net_device *dev,
373 struct iw_request_info *info,
374 struct iw_param *frag, char *extra)
375{
376 struct wireless_dev *wdev = dev->ieee80211_ptr;
377
378 frag->value = wdev->wiphy->frag_threshold;
379 frag->disabled = frag->value == (u32) -1;
380 frag->fixed = 1;
381
382 return 0;
383}
ba44cb72 384EXPORT_SYMBOL_GPL(cfg80211_wext_giwfrag);
b9a5f8ca
JM		 385
386int cfg80211_wext_siwretry(struct net_device *dev,
387 struct iw_request_info *info,
388 struct iw_param *retry, char *extra)
389{
390 struct wireless_dev *wdev = dev->ieee80211_ptr;
391 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
392 u32 changed = 0;
393 u8 olong = wdev->wiphy->retry_long;
394 u8 oshort = wdev->wiphy->retry_short;
395 int err;
396
397 if (retry->disabled ||
398 (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
399 return -EINVAL;
400
401 if (retry->flags & IW_RETRY_LONG) {
402 wdev->wiphy->retry_long = retry->value;
403 changed |= WIPHY_PARAM_RETRY_LONG;
404 } else if (retry->flags & IW_RETRY_SHORT) {
405 wdev->wiphy->retry_short = retry->value;
406 changed |= WIPHY_PARAM_RETRY_SHORT;
407 } else {
408 wdev->wiphy->retry_short = retry->value;
409 wdev->wiphy->retry_long = retry->value;
410 changed |= WIPHY_PARAM_RETRY_LONG;
411 changed |= WIPHY_PARAM_RETRY_SHORT;
412 }
413
414 if (!changed)
415 return 0;
416
417 err = rdev->ops->set_wiphy_params(wdev->wiphy, changed);
418 if (err) {
419 wdev->wiphy->retry_short = oshort;
420 wdev->wiphy->retry_long = olong;
421 }
422
423 return err;
424}
ba44cb72 425EXPORT_SYMBOL_GPL(cfg80211_wext_siwretry);
b9a5f8ca
JM		 426
427int cfg80211_wext_giwretry(struct net_device *dev,
428 struct iw_request_info *info,
429 struct iw_param *retry, char *extra)
430{
431 struct wireless_dev *wdev = dev->ieee80211_ptr;
432
433 retry->disabled = 0;
434
435 if (retry->flags == 0 || (retry->flags & IW_RETRY_SHORT)) {
436 /*
437 * First return short value, iwconfig will ask long value
438 * later if needed
439 */
440 retry->flags |= IW_RETRY_LIMIT;
441 retry->value = wdev->wiphy->retry_short;
442 if (wdev->wiphy->retry_long != wdev->wiphy->retry_short)
443 retry->flags |= IW_RETRY_LONG;
444
445 return 0;
446 }
447
448 if (retry->flags & IW_RETRY_LONG) {
449 retry->flags = IW_RETRY_LIMIT | IW_RETRY_LONG;
450 retry->value = wdev->wiphy->retry_long;
451 }
452
453 return 0;
454}
ba44cb72 455EXPORT_SYMBOL_GPL(cfg80211_wext_giwretry);
08645126
JB		 456
457static int cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
458 struct net_device *dev, const u8 *addr,
459 bool remove, bool tx_key, int idx,
460 struct key_params *params)
461{
462 struct wireless_dev *wdev = dev->ieee80211_ptr;
463 int err;
464
465 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
466 if (!rdev->ops->set_default_mgmt_key)
467 return -EOPNOTSUPP;
468
469 if (idx < 4 || idx > 5)
470 return -EINVAL;
471 } else if (idx < 0 || idx > 3)
472 return -EINVAL;
473
474 if (remove) {
475 err = rdev->ops->del_key(&rdev->wiphy, dev, idx, addr);
476 if (!err) {
477 if (idx == wdev->wext.default_key)
478 wdev->wext.default_key = -1;
479 else if (idx == wdev->wext.default_mgmt_key)
480 wdev->wext.default_mgmt_key = -1;
481 }
e3da574a
JB		 482 /*
483 * Applications using wireless extensions expect to be
484 * able to delete keys that don't exist, so allow that.
485 */
486 if (err == -ENOENT)
487 return 0;
488
08645126
JB		 489 return err;
490 } else {
491 if (addr)
492 tx_key = false;
493
494 if (cfg80211_validate_key_settings(params, idx, addr))
495 return -EINVAL;
496
497 err = rdev->ops->add_key(&rdev->wiphy, dev, idx, addr, params);
498 if (err)
499 return err;
500
501 if (tx_key || (!addr && wdev->wext.default_key == -1)) {
502 err = rdev->ops->set_default_key(&rdev->wiphy,
503 dev, idx);
504 if (!err)
505 wdev->wext.default_key = idx;
506 return err;
507 }
508
509 if (params->cipher == WLAN_CIPHER_SUITE_AES_CMAC &&
510 (tx_key || (!addr && wdev->wext.default_mgmt_key == -1))) {
511 err = rdev->ops->set_default_mgmt_key(&rdev->wiphy,
512 dev, idx);
513 if (!err)
514 wdev->wext.default_mgmt_key = idx;
515 return err;
516 }
517
518 return 0;
519 }
520}
521
522int cfg80211_wext_siwencode(struct net_device *dev,
523 struct iw_request_info *info,
524 struct iw_point *erq, char *keybuf)
525{
526 struct wireless_dev *wdev = dev->ieee80211_ptr;
527 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
528 int idx, err;
529 bool remove = false;
530 struct key_params params;
531
532 /* no use -- only MFP (set_default_mgmt_key) is optional */
533 if (!rdev->ops->del_key ||
534 !rdev->ops->add_key ||
535 !rdev->ops->set_default_key)
536 return -EOPNOTSUPP;
537
538 idx = erq->flags & IW_ENCODE_INDEX;
539 if (idx == 0) {
540 idx = wdev->wext.default_key;
541 if (idx < 0)
542 idx = 0;
543 } else if (idx < 1 || idx > 4)
544 return -EINVAL;
545 else
546 idx--;
547
548 if (erq->flags & IW_ENCODE_DISABLED)
549 remove = true;
550 else if (erq->length == 0) {
551 /* No key data - just set the default TX key index */
552 err = rdev->ops->set_default_key(&rdev->wiphy, dev, idx);
553 if (!err)
554 wdev->wext.default_key = idx;
555 return err;
556 }
557
558 memset(&params, 0, sizeof(params));
559 params.key = keybuf;
560 params.key_len = erq->length;
561 if (erq->length == 5)
562 params.cipher = WLAN_CIPHER_SUITE_WEP40;
563 else if (erq->length == 13)
564 params.cipher = WLAN_CIPHER_SUITE_WEP104;
565 else if (!remove)
566 return -EINVAL;
567
568 return cfg80211_set_encryption(rdev, dev, NULL, remove,
569 wdev->wext.default_key == -1,
570 idx, &params);
571}
572EXPORT_SYMBOL_GPL(cfg80211_wext_siwencode);
573
574int cfg80211_wext_siwencodeext(struct net_device *dev,
575 struct iw_request_info *info,
576 struct iw_point *erq, char *extra)
577{
578 struct wireless_dev *wdev = dev->ieee80211_ptr;
579 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
580 struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
581 const u8 *addr;
582 int idx;
583 bool remove = false;
584 struct key_params params;
585 u32 cipher;
586
587 /* no use -- only MFP (set_default_mgmt_key) is optional */
588 if (!rdev->ops->del_key ||
589 !rdev->ops->add_key ||
590 !rdev->ops->set_default_key)
591 return -EOPNOTSUPP;
592
593 switch (ext->alg) {
594 case IW_ENCODE_ALG_NONE:
595 remove = true;
596 cipher = 0;
597 break;
598 case IW_ENCODE_ALG_WEP:
599 if (ext->key_len == 5)
600 cipher = WLAN_CIPHER_SUITE_WEP40;
601 else if (ext->key_len == 13)
602 cipher = WLAN_CIPHER_SUITE_WEP104;
603 else
604 return -EINVAL;
605 break;
606 case IW_ENCODE_ALG_TKIP:
607 cipher = WLAN_CIPHER_SUITE_TKIP;
608 break;
609 case IW_ENCODE_ALG_CCMP:
610 cipher = WLAN_CIPHER_SUITE_CCMP;
611 break;
612 case IW_ENCODE_ALG_AES_CMAC:
613 cipher = WLAN_CIPHER_SUITE_AES_CMAC;
614 break;
615 default:
616 return -EOPNOTSUPP;
617 }
618
619 if (erq->flags & IW_ENCODE_DISABLED)
620 remove = true;
621
622 idx = erq->flags & IW_ENCODE_INDEX;
623 if (cipher == WLAN_CIPHER_SUITE_AES_CMAC) {
624 if (idx < 4 || idx > 5) {
625 idx = wdev->wext.default_mgmt_key;
626 if (idx < 0)
627 return -EINVAL;
628 } else
629 idx--;
630 } else {
631 if (idx < 1 || idx > 4) {
632 idx = wdev->wext.default_key;
633 if (idx < 0)
634 return -EINVAL;
635 } else
636 idx--;
637 }
638
639 addr = ext->addr.sa_data;
640 if (is_broadcast_ether_addr(addr))
641 addr = NULL;
642
643 memset(&params, 0, sizeof(params));
644 params.key = ext->key;
645 params.key_len = ext->key_len;
646 params.cipher = cipher;
647
faa8fdc8
JM		 648 if (ext->ext_flags & IW_ENCODE_EXT_RX_SEQ_VALID) {
649 params.seq = ext->rx_seq;
650 params.seq_len = 6;
651 }
652
08645126
JB		 653 return cfg80211_set_encryption(
654 rdev, dev, addr, remove,
655 ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY,
656 idx, &params);
657}
658EXPORT_SYMBOL_GPL(cfg80211_wext_siwencodeext);
659
660struct giwencode_cookie {
661 size_t buflen;
662 char *keybuf;
663};
664
665static void giwencode_get_key_cb(void *cookie, struct key_params *params)
666{
667 struct giwencode_cookie *data = cookie;
668
669 if (!params->key) {
670 data->buflen = 0;
671 return;
672 }
673
674 data->buflen = min_t(size_t, data->buflen, params->key_len);
675 memcpy(data->keybuf, params->key, data->buflen);
676}
677
678int cfg80211_wext_giwencode(struct net_device *dev,
679 struct iw_request_info *info,
680 struct iw_point *erq, char *keybuf)
681{
682 struct wireless_dev *wdev = dev->ieee80211_ptr;
683 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
684 int idx, err;
685 struct giwencode_cookie data = {
686 .keybuf = keybuf,
687 .buflen = erq->length,
688 };
689
690 if (!rdev->ops->get_key)
691 return -EOPNOTSUPP;
692
693 idx = erq->flags & IW_ENCODE_INDEX;
694 if (idx == 0) {
695 idx = wdev->wext.default_key;
696 if (idx < 0)
697 idx = 0;
698 } else if (idx < 1 || idx > 4)
699 return -EINVAL;
700 else
701 idx--;
702
703 erq->flags = idx + 1;
704
705 err = rdev->ops->get_key(&rdev->wiphy, dev, idx, NULL, &data,
706 giwencode_get_key_cb);
707 if (!err) {
708 erq->length = data.buflen;
709 erq->flags |= IW_ENCODE_ENABLED;
710 return 0;
711 }
712
713 if (err == -ENOENT) {
714 erq->flags |= IW_ENCODE_DISABLED;
715 erq->length = 0;
716 return 0;
717 }
718
719 return err;
720}
721EXPORT_SYMBOL_GPL(cfg80211_wext_giwencode);
7643a2c3
JB		 722
723int cfg80211_wext_siwtxpower(struct net_device *dev,
724 struct iw_request_info *info,
725 union iwreq_data *data, char *extra)
726{
727 struct wireless_dev *wdev = dev->ieee80211_ptr;
728 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
729 enum tx_power_setting type;
730 int dbm = 0;
731
732 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
733 return -EINVAL;
734 if (data->txpower.flags & IW_TXPOW_RANGE)
735 return -EINVAL;
736
737 if (!rdev->ops->set_tx_power)
738 return -EOPNOTSUPP;
739
740 /* only change when not disabling */
741 if (!data->txpower.disabled) {
1f87f7d3
JB		 742 rfkill_set_sw_state(rdev->rfkill, false);
743
7643a2c3
JB		 744 if (data->txpower.fixed) {
745 /*
746 * wext doesn't support negative values, see
747 * below where it's for automatic
748 */
749 if (data->txpower.value < 0)
750 return -EINVAL;
751 dbm = data->txpower.value;
752 type = TX_POWER_FIXED;
753 /* TODO: do regulatory check! */
754 } else {
755 /*
756 * Automatic power level setting, max being the value
757 * passed in from userland.
758 */
759 if (data->txpower.value < 0) {
760 type = TX_POWER_AUTOMATIC;
761 } else {
762 dbm = data->txpower.value;
763 type = TX_POWER_LIMITED;
764 }
765 }
766 } else {
1f87f7d3
JB		 767 rfkill_set_sw_state(rdev->rfkill, true);
768 schedule_work(&rdev->rfkill_sync);
769 return 0;
7643a2c3
JB		 770 }
771
772 return rdev->ops->set_tx_power(wdev->wiphy, type, dbm);;
773}
774EXPORT_SYMBOL_GPL(cfg80211_wext_siwtxpower);
775
776int cfg80211_wext_giwtxpower(struct net_device *dev,
777 struct iw_request_info *info,
778 union iwreq_data *data, char *extra)
779{
780 struct wireless_dev *wdev = dev->ieee80211_ptr;
781 struct cfg80211_registered_device *rdev = wiphy_to_dev(wdev->wiphy);
782 int err, val;
783
784 if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
785 return -EINVAL;
786 if (data->txpower.flags & IW_TXPOW_RANGE)
787 return -EINVAL;
788
789 if (!rdev->ops->get_tx_power)
790 return -EOPNOTSUPP;
791
792 err = rdev->ops->get_tx_power(wdev->wiphy, &val);
1f87f7d3 793 if (err)
7643a2c3
JB		 794 return err;
795
796 /* well... oh well */
797 data->txpower.fixed = 1;
1f87f7d3 798 data->txpower.disabled = rfkill_blocked(rdev->rfkill);
7643a2c3
JB		 799 data->txpower.value = val;
800 data->txpower.flags = IW_TXPOW_DBM;
801
802 return 0;
803}
804EXPORT_SYMBOL_GPL(cfg80211_wext_giwtxpower);
f2129354
JB		 805
806static int cfg80211_set_auth_alg(struct wireless_dev *wdev,
807 s32 auth_alg)
808{
809 int nr_alg = 0;
810
811 if (!auth_alg)
812 return -EINVAL;
813
814 if (auth_alg & ~(IW_AUTH_ALG_OPEN_SYSTEM |
815 IW_AUTH_ALG_SHARED_KEY |
816 IW_AUTH_ALG_LEAP))
817 return -EINVAL;
818
819 if (auth_alg & IW_AUTH_ALG_OPEN_SYSTEM) {
820 nr_alg++;
821 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_OPEN_SYSTEM;
822 }
823
824 if (auth_alg & IW_AUTH_ALG_SHARED_KEY) {
825 nr_alg++;
826 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_SHARED_KEY;
827 }
828
829 if (auth_alg & IW_AUTH_ALG_LEAP) {
830 nr_alg++;
831 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_NETWORK_EAP;
832 }
833
834 if (nr_alg > 1)
835 wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
836
837 return 0;
838}
839
840static int cfg80211_set_wpa_version(struct wireless_dev *wdev, u32 wpa_versions)
841{
842 wdev->wext.connect.crypto.wpa_versions = 0;
843
844 if (wpa_versions & ~(IW_AUTH_WPA_VERSION_WPA |
845 IW_AUTH_WPA_VERSION_WPA2))
846 return -EINVAL;
847
848 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA)
849 wdev->wext.connect.crypto.wpa_versions |=
850 NL80211_WPA_VERSION_1;
851
852 if (wpa_versions & IW_AUTH_WPA_VERSION_WPA2)
853 wdev->wext.connect.crypto.wpa_versions |=
854 NL80211_WPA_VERSION_2;
855
856 return 0;
857}
858
859int cfg80211_set_cipher_group(struct wireless_dev *wdev, u32 cipher)
860{
861 wdev->wext.connect.crypto.cipher_group = 0;
862
863 if (cipher & IW_AUTH_CIPHER_WEP40)
864 wdev->wext.connect.crypto.cipher_group =
865 WLAN_CIPHER_SUITE_WEP40;
866 else if (cipher & IW_AUTH_CIPHER_WEP104)
867 wdev->wext.connect.crypto.cipher_group =
868 WLAN_CIPHER_SUITE_WEP104;
869 else if (cipher & IW_AUTH_CIPHER_TKIP)
870 wdev->wext.connect.crypto.cipher_group =
871 WLAN_CIPHER_SUITE_TKIP;
872 else if (cipher & IW_AUTH_CIPHER_CCMP)
873 wdev->wext.connect.crypto.cipher_group =
874 WLAN_CIPHER_SUITE_CCMP;
875 else if (cipher & IW_AUTH_CIPHER_AES_CMAC)
876 wdev->wext.connect.crypto.cipher_group =
877 WLAN_CIPHER_SUITE_AES_CMAC;
878 else
879 return -EINVAL;
880
881 return 0;
882}
883
884int cfg80211_set_cipher_pairwise(struct wireless_dev *wdev, u32 cipher)
885{
886 int nr_ciphers = 0;
887 u32 *ciphers_pairwise = wdev->wext.connect.crypto.ciphers_pairwise;
888
889 if (cipher & IW_AUTH_CIPHER_WEP40) {
890 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP40;
891 nr_ciphers++;
892 }
893
894 if (cipher & IW_AUTH_CIPHER_WEP104) {
895 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_WEP104;
896 nr_ciphers++;
897 }
898
899 if (cipher & IW_AUTH_CIPHER_TKIP) {
900 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_TKIP;
901 nr_ciphers++;
902 }
903
904 if (cipher & IW_AUTH_CIPHER_CCMP) {
905 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_CCMP;
906 nr_ciphers++;
907 }
908
909 if (cipher & IW_AUTH_CIPHER_AES_CMAC) {
910 ciphers_pairwise[nr_ciphers] = WLAN_CIPHER_SUITE_AES_CMAC;
911 nr_ciphers++;
912 }
913
914 BUILD_BUG_ON(NL80211_MAX_NR_CIPHER_SUITES < 5);
915
916 wdev->wext.connect.crypto.n_ciphers_pairwise = nr_ciphers;
917
918 return 0;
919}
920
921
922int cfg80211_set_key_mgt(struct wireless_dev *wdev, u32 key_mgt)
923{
924 int nr_akm_suites = 0;
925
926 if (key_mgt & ~(IW_AUTH_KEY_MGMT_802_1X |
927 IW_AUTH_KEY_MGMT_PSK))
928 return -EINVAL;
929
930 if (key_mgt & IW_AUTH_KEY_MGMT_802_1X) {
931 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
932 WLAN_AKM_SUITE_8021X;
933 nr_akm_suites++;
934 }
935
936 if (key_mgt & IW_AUTH_KEY_MGMT_PSK) {
937 wdev->wext.connect.crypto.akm_suites[nr_akm_suites] =
938 WLAN_AKM_SUITE_PSK;
939 nr_akm_suites++;
940 }
941
942 wdev->wext.connect.crypto.n_akm_suites = nr_akm_suites;
943
944 return 0;
945}
946
947int cfg80211_wext_siwauth(struct net_device *dev,
948 struct iw_request_info *info,
949 struct iw_param *data, char *extra)
950{
951 struct wireless_dev *wdev = dev->ieee80211_ptr;
952
953 if (wdev->iftype != NL80211_IFTYPE_STATION)
954 return -EOPNOTSUPP;
955
956 switch (data->flags & IW_AUTH_INDEX) {
957 case IW_AUTH_PRIVACY_INVOKED:
958 wdev->wext.connect.privacy = data->value;
959 return 0;
960 case IW_AUTH_WPA_VERSION:
961 return cfg80211_set_wpa_version(wdev, data->value);
962 case IW_AUTH_CIPHER_GROUP:
963 return cfg80211_set_cipher_group(wdev, data->value);
964 case IW_AUTH_KEY_MGMT:
965 return cfg80211_set_key_mgt(wdev, data->value);
966 case IW_AUTH_CIPHER_PAIRWISE:
967 return cfg80211_set_cipher_pairwise(wdev, data->value);
968 case IW_AUTH_80211_AUTH_ALG:
969 return cfg80211_set_auth_alg(wdev, data->value);
970 case IW_AUTH_WPA_ENABLED:
971 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
972 case IW_AUTH_DROP_UNENCRYPTED:
973 case IW_AUTH_MFP:
974 return 0;
975 default:
976 return -EOPNOTSUPP;
977 }
978}
979EXPORT_SYMBOL_GPL(cfg80211_wext_siwauth);
980
981int cfg80211_wext_giwauth(struct net_device *dev,
982 struct iw_request_info *info,
983 struct iw_param *data, char *extra)
984{
985 /* XXX: what do we need? */
986
987 return -EOPNOTSUPP;
988}
989EXPORT_SYMBOL_GPL(cfg80211_wext_giwauth);
Clone of davem's net-next-2.6 tree