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33#include <linux/hardirq.h>
34#include <linux/kmod.h>
35#include <linux/slab.h>
36#include <linux/module.h>
37#include <linux/jiffies.h>
38
39#include <net/lib80211.h>
40#include <linux/wireless.h>
41
42#include "libipw.h"
43
44static const char *libipw_modes[] = {
45 "?", "a", "b", "ab", "g", "ag", "bg", "abg"
46};
47
48static inline unsigned int elapsed_jiffies_msecs(unsigned long start)
49{
50 unsigned long end = jiffies;
51
52 if (end >= start)
53 return jiffies_to_msecs(end - start);
54
55 return jiffies_to_msecs(end + (MAX_JIFFY_OFFSET - start) + 1);
56}
57
58#define MAX_CUSTOM_LEN 64
59static char *libipw_translate_scan(struct libipw_device *ieee,
60 char *start, char *stop,
61 struct libipw_network *network,
62 struct iw_request_info *info)
63{
64 char custom[MAX_CUSTOM_LEN];
65 char *p;
66 struct iw_event iwe;
67 int i, j;
68 char *current_val;
69 u8 rate;
70
71
72 iwe.cmd = SIOCGIWAP;
73 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
74 memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
75 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_ADDR_LEN);
76
77
78
79
80 iwe.cmd = SIOCGIWESSID;
81 iwe.u.data.flags = 1;
82 iwe.u.data.length = min(network->ssid_len, (u8) 32);
83 start = iwe_stream_add_point(info, start, stop,
84 &iwe, network->ssid);
85
86
87 iwe.cmd = SIOCGIWNAME;
88 snprintf(iwe.u.name, IFNAMSIZ, "IEEE 802.11%s",
89 libipw_modes[network->mode]);
90 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN);
91
92
93 iwe.cmd = SIOCGIWMODE;
94 if (network->capability & (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
95 if (network->capability & WLAN_CAPABILITY_ESS)
96 iwe.u.mode = IW_MODE_MASTER;
97 else
98 iwe.u.mode = IW_MODE_ADHOC;
99
100 start = iwe_stream_add_event(info, start, stop,
101 &iwe, IW_EV_UINT_LEN);
102 }
103
104
105
106 iwe.cmd = SIOCGIWFREQ;
107 iwe.u.freq.m = libipw_channel_to_freq(ieee, network->channel);
108 iwe.u.freq.e = 6;
109 iwe.u.freq.i = 0;
110 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
111
112
113 iwe.cmd = SIOCGIWENCODE;
114 if (network->capability & WLAN_CAPABILITY_PRIVACY)
115 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
116 else
117 iwe.u.data.flags = IW_ENCODE_DISABLED;
118 iwe.u.data.length = 0;
119 start = iwe_stream_add_point(info, start, stop,
120 &iwe, network->ssid);
121
122
123
124
125 current_val = start + iwe_stream_lcp_len(info);
126 iwe.cmd = SIOCGIWRATE;
127
128 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
129
130 for (i = 0, j = 0; i < network->rates_len;) {
131 if (j < network->rates_ex_len &&
132 ((network->rates_ex[j] & 0x7F) <
133 (network->rates[i] & 0x7F)))
134 rate = network->rates_ex[j++] & 0x7F;
135 else
136 rate = network->rates[i++] & 0x7F;
137
138 iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
139
140 current_val = iwe_stream_add_value(info, start, current_val,
141 stop, &iwe, IW_EV_PARAM_LEN);
142 }
143 for (; j < network->rates_ex_len; j++) {
144 rate = network->rates_ex[j] & 0x7F;
145
146 iwe.u.bitrate.value = ((rate & 0x7f) * 500000);
147
148 current_val = iwe_stream_add_value(info, start, current_val,
149 stop, &iwe, IW_EV_PARAM_LEN);
150 }
151
152 if ((current_val - start) > iwe_stream_lcp_len(info))
153 start = current_val;
154
155
156 iwe.cmd = IWEVQUAL;
157 iwe.u.qual.updated = IW_QUAL_QUAL_UPDATED | IW_QUAL_LEVEL_UPDATED |
158 IW_QUAL_NOISE_UPDATED;
159
160 if (!(network->stats.mask & LIBIPW_STATMASK_RSSI)) {
161 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID |
162 IW_QUAL_LEVEL_INVALID;
163 iwe.u.qual.qual = 0;
164 } else {
165 if (ieee->perfect_rssi == ieee->worst_rssi)
166 iwe.u.qual.qual = 100;
167 else
168 iwe.u.qual.qual =
169 (100 *
170 (ieee->perfect_rssi - ieee->worst_rssi) *
171 (ieee->perfect_rssi - ieee->worst_rssi) -
172 (ieee->perfect_rssi - network->stats.rssi) *
173 (15 * (ieee->perfect_rssi - ieee->worst_rssi) +
174 62 * (ieee->perfect_rssi -
175 network->stats.rssi))) /
176 ((ieee->perfect_rssi -
177 ieee->worst_rssi) * (ieee->perfect_rssi -
178 ieee->worst_rssi));
179 if (iwe.u.qual.qual > 100)
180 iwe.u.qual.qual = 100;
181 else if (iwe.u.qual.qual < 1)
182 iwe.u.qual.qual = 0;
183 }
184
185 if (!(network->stats.mask & LIBIPW_STATMASK_NOISE)) {
186 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
187 iwe.u.qual.noise = 0;
188 } else {
189 iwe.u.qual.noise = network->stats.noise;
190 }
191
192 if (!(network->stats.mask & LIBIPW_STATMASK_SIGNAL)) {
193 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
194 iwe.u.qual.level = 0;
195 } else {
196 iwe.u.qual.level = network->stats.signal;
197 }
198
199 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
200
201 iwe.cmd = IWEVCUSTOM;
202 p = custom;
203
204 iwe.u.data.length = p - custom;
205 if (iwe.u.data.length)
206 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
207
208 memset(&iwe, 0, sizeof(iwe));
209 if (network->wpa_ie_len) {
210 char buf[MAX_WPA_IE_LEN];
211 memcpy(buf, network->wpa_ie, network->wpa_ie_len);
212 iwe.cmd = IWEVGENIE;
213 iwe.u.data.length = network->wpa_ie_len;
214 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
215 }
216
217 memset(&iwe, 0, sizeof(iwe));
218 if (network->rsn_ie_len) {
219 char buf[MAX_WPA_IE_LEN];
220 memcpy(buf, network->rsn_ie, network->rsn_ie_len);
221 iwe.cmd = IWEVGENIE;
222 iwe.u.data.length = network->rsn_ie_len;
223 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
224 }
225
226
227
228 iwe.cmd = IWEVCUSTOM;
229 p = custom;
230 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
231 " Last beacon: %ums ago",
232 elapsed_jiffies_msecs(network->last_scanned));
233 iwe.u.data.length = p - custom;
234 if (iwe.u.data.length)
235 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
236
237
238 iwe.cmd = -1;
239 p = custom;
240 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Channel flags: ");
241
242 if (libipw_get_channel_flags(ieee, network->channel) &
243 LIBIPW_CH_INVALID) {
244 iwe.cmd = IWEVCUSTOM;
245 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "INVALID ");
246 }
247
248 if (libipw_get_channel_flags(ieee, network->channel) &
249 LIBIPW_CH_RADAR_DETECT) {
250 iwe.cmd = IWEVCUSTOM;
251 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), "DFS ");
252 }
253
254 if (iwe.cmd == IWEVCUSTOM) {
255 iwe.u.data.length = p - custom;
256 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
257 }
258
259 return start;
260}
261
262#define SCAN_ITEM_SIZE 128
263
264int libipw_wx_get_scan(struct libipw_device *ieee,
265 struct iw_request_info *info,
266 union iwreq_data *wrqu, char *extra)
267{
268 struct libipw_network *network;
269 unsigned long flags;
270 int err = 0;
271
272 char *ev = extra;
273 char *stop = ev + wrqu->data.length;
274 int i = 0;
275 DECLARE_SSID_BUF(ssid);
276
277 LIBIPW_DEBUG_WX("Getting scan\n");
278
279 spin_lock_irqsave(&ieee->lock, flags);
280
281 list_for_each_entry(network, &ieee->network_list, list) {
282 i++;
283 if (stop - ev < SCAN_ITEM_SIZE) {
284 err = -E2BIG;
285 break;
286 }
287
288 if (ieee->scan_age == 0 ||
289 time_after(network->last_scanned + ieee->scan_age, jiffies))
290 ev = libipw_translate_scan(ieee, ev, stop, network,
291 info);
292 else {
293 LIBIPW_DEBUG_SCAN("Not showing network '%s ("
294 "%pM)' due to age (%ums).\n",
295 print_ssid(ssid, network->ssid,
296 network->ssid_len),
297 network->bssid,
298 elapsed_jiffies_msecs(
299 network->last_scanned));
300 }
301 }
302
303 spin_unlock_irqrestore(&ieee->lock, flags);
304
305 wrqu->data.length = ev - extra;
306 wrqu->data.flags = 0;
307
308 LIBIPW_DEBUG_WX("exit: %d networks returned.\n", i);
309
310 return err;
311}
312
313int libipw_wx_set_encode(struct libipw_device *ieee,
314 struct iw_request_info *info,
315 union iwreq_data *wrqu, char *keybuf)
316{
317 struct iw_point *erq = &(wrqu->encoding);
318 struct net_device *dev = ieee->dev;
319 struct libipw_security sec = {
320 .flags = 0
321 };
322 int i, key, key_provided, len;
323 struct lib80211_crypt_data **crypt;
324 int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
325 DECLARE_SSID_BUF(ssid);
326
327 LIBIPW_DEBUG_WX("SET_ENCODE\n");
328
329 key = erq->flags & IW_ENCODE_INDEX;
330 if (key) {
331 if (key > WEP_KEYS)
332 return -EINVAL;
333 key--;
334 key_provided = 1;
335 } else {
336 key_provided = 0;
337 key = ieee->crypt_info.tx_keyidx;
338 }
339
340 LIBIPW_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
341 "provided" : "default");
342
343 crypt = &ieee->crypt_info.crypt[key];
344
345 if (erq->flags & IW_ENCODE_DISABLED) {
346 if (key_provided && *crypt) {
347 LIBIPW_DEBUG_WX("Disabling encryption on key %d.\n",
348 key);
349 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
350 } else
351 LIBIPW_DEBUG_WX("Disabling encryption.\n");
352
353
354
355 for (i = 0; i < WEP_KEYS; i++) {
356 if (ieee->crypt_info.crypt[i] != NULL) {
357 if (key_provided)
358 break;
359 lib80211_crypt_delayed_deinit(&ieee->crypt_info,
360 &ieee->crypt_info.crypt[i]);
361 }
362 }
363
364 if (i == WEP_KEYS) {
365 sec.enabled = 0;
366 sec.encrypt = 0;
367 sec.level = SEC_LEVEL_0;
368 sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
369 }
370
371 goto done;
372 }
373
374 sec.enabled = 1;
375 sec.encrypt = 1;
376 sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
377
378 if (*crypt != NULL && (*crypt)->ops != NULL &&
379 strcmp((*crypt)->ops->name, "WEP") != 0) {
380
381
382 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
383 }
384
385 if (*crypt == NULL && host_crypto) {
386 struct lib80211_crypt_data *new_crypt;
387
388
389 new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
390 GFP_KERNEL);
391 if (new_crypt == NULL)
392 return -ENOMEM;
393 new_crypt->ops = lib80211_get_crypto_ops("WEP");
394 if (!new_crypt->ops) {
395 request_module("lib80211_crypt_wep");
396 new_crypt->ops = lib80211_get_crypto_ops("WEP");
397 }
398
399 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
400 new_crypt->priv = new_crypt->ops->init(key);
401
402 if (!new_crypt->ops || !new_crypt->priv) {
403 kfree(new_crypt);
404 new_crypt = NULL;
405
406 printk(KERN_WARNING "%s: could not initialize WEP: "
407 "load module lib80211_crypt_wep\n", dev->name);
408 return -EOPNOTSUPP;
409 }
410 *crypt = new_crypt;
411 }
412
413
414 if (erq->length > 0) {
415 len = erq->length <= 5 ? 5 : 13;
416 memcpy(sec.keys[key], keybuf, erq->length);
417 if (len > erq->length)
418 memset(sec.keys[key] + erq->length, 0,
419 len - erq->length);
420 LIBIPW_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
421 key, print_ssid(ssid, sec.keys[key], len),
422 erq->length, len);
423 sec.key_sizes[key] = len;
424 if (*crypt)
425 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
426 (*crypt)->priv);
427 sec.flags |= (1 << key);
428
429
430 if (key == sec.active_key)
431 sec.flags |= SEC_ACTIVE_KEY;
432
433 } else {
434 if (host_crypto) {
435 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
436 NULL, (*crypt)->priv);
437 if (len == 0) {
438
439 LIBIPW_DEBUG_WX("Setting key %d to all "
440 "zero.\n", key);
441 memset(sec.keys[key], 0, 13);
442 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
443 (*crypt)->priv);
444 sec.key_sizes[key] = 13;
445 sec.flags |= (1 << key);
446 }
447 }
448
449 if (key_provided) {
450 LIBIPW_DEBUG_WX("Setting key %d to default Tx "
451 "key.\n", key);
452 ieee->crypt_info.tx_keyidx = key;
453 sec.active_key = key;
454 sec.flags |= SEC_ACTIVE_KEY;
455 }
456 }
457 if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
458 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
459 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
460 WLAN_AUTH_SHARED_KEY;
461 sec.flags |= SEC_AUTH_MODE;
462 LIBIPW_DEBUG_WX("Auth: %s\n",
463 sec.auth_mode == WLAN_AUTH_OPEN ?
464 "OPEN" : "SHARED KEY");
465 }
466
467
468
469 sec.flags |= SEC_LEVEL;
470 sec.level = SEC_LEVEL_1;
471 sec.encode_alg[key] = SEC_ALG_WEP;
472
473 done:
474 if (ieee->set_security)
475 ieee->set_security(dev, &sec);
476
477 return 0;
478}
479
480int libipw_wx_get_encode(struct libipw_device *ieee,
481 struct iw_request_info *info,
482 union iwreq_data *wrqu, char *keybuf)
483{
484 struct iw_point *erq = &(wrqu->encoding);
485 int len, key;
486 struct lib80211_crypt_data *crypt;
487 struct libipw_security *sec = &ieee->sec;
488
489 LIBIPW_DEBUG_WX("GET_ENCODE\n");
490
491 key = erq->flags & IW_ENCODE_INDEX;
492 if (key) {
493 if (key > WEP_KEYS)
494 return -EINVAL;
495 key--;
496 } else
497 key = ieee->crypt_info.tx_keyidx;
498
499 crypt = ieee->crypt_info.crypt[key];
500 erq->flags = key + 1;
501
502 if (!sec->enabled) {
503 erq->length = 0;
504 erq->flags |= IW_ENCODE_DISABLED;
505 return 0;
506 }
507
508 len = sec->key_sizes[key];
509 memcpy(keybuf, sec->keys[key], len);
510
511 erq->length = len;
512 erq->flags |= IW_ENCODE_ENABLED;
513
514 if (ieee->open_wep)
515 erq->flags |= IW_ENCODE_OPEN;
516 else
517 erq->flags |= IW_ENCODE_RESTRICTED;
518
519 return 0;
520}
521
522int libipw_wx_set_encodeext(struct libipw_device *ieee,
523 struct iw_request_info *info,
524 union iwreq_data *wrqu, char *extra)
525{
526 struct net_device *dev = ieee->dev;
527 struct iw_point *encoding = &wrqu->encoding;
528 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
529 int i, idx, ret = 0;
530 int group_key = 0;
531 const char *alg, *module;
532 struct lib80211_crypto_ops *ops;
533 struct lib80211_crypt_data **crypt;
534
535 struct libipw_security sec = {
536 .flags = 0,
537 };
538
539 idx = encoding->flags & IW_ENCODE_INDEX;
540 if (idx) {
541 if (idx < 1 || idx > WEP_KEYS)
542 return -EINVAL;
543 idx--;
544 } else
545 idx = ieee->crypt_info.tx_keyidx;
546
547 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
548 crypt = &ieee->crypt_info.crypt[idx];
549 group_key = 1;
550 } else {
551
552 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
553 return -EINVAL;
554 if (ieee->iw_mode == IW_MODE_INFRA)
555 crypt = &ieee->crypt_info.crypt[idx];
556 else
557 return -EINVAL;
558 }
559
560 sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
561 if ((encoding->flags & IW_ENCODE_DISABLED) ||
562 ext->alg == IW_ENCODE_ALG_NONE) {
563 if (*crypt)
564 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
565
566 for (i = 0; i < WEP_KEYS; i++)
567 if (ieee->crypt_info.crypt[i] != NULL)
568 break;
569
570 if (i == WEP_KEYS) {
571 sec.enabled = 0;
572 sec.encrypt = 0;
573 sec.level = SEC_LEVEL_0;
574 sec.flags |= SEC_LEVEL;
575 }
576 goto done;
577 }
578
579 sec.enabled = 1;
580 sec.encrypt = 1;
581
582 if (group_key ? !ieee->host_mc_decrypt :
583 !(ieee->host_encrypt || ieee->host_decrypt ||
584 ieee->host_encrypt_msdu))
585 goto skip_host_crypt;
586
587 switch (ext->alg) {
588 case IW_ENCODE_ALG_WEP:
589 alg = "WEP";
590 module = "lib80211_crypt_wep";
591 break;
592 case IW_ENCODE_ALG_TKIP:
593 alg = "TKIP";
594 module = "lib80211_crypt_tkip";
595 break;
596 case IW_ENCODE_ALG_CCMP:
597 alg = "CCMP";
598 module = "lib80211_crypt_ccmp";
599 break;
600 default:
601 LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n",
602 dev->name, ext->alg);
603 ret = -EINVAL;
604 goto done;
605 }
606
607 ops = lib80211_get_crypto_ops(alg);
608 if (ops == NULL) {
609 request_module(module);
610 ops = lib80211_get_crypto_ops(alg);
611 }
612 if (ops == NULL) {
613 LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n",
614 dev->name, ext->alg);
615 ret = -EINVAL;
616 goto done;
617 }
618
619 if (*crypt == NULL || (*crypt)->ops != ops) {
620 struct lib80211_crypt_data *new_crypt;
621
622 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
623
624 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
625 if (new_crypt == NULL) {
626 ret = -ENOMEM;
627 goto done;
628 }
629 new_crypt->ops = ops;
630 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
631 new_crypt->priv = new_crypt->ops->init(idx);
632 if (new_crypt->priv == NULL) {
633 kfree(new_crypt);
634 ret = -EINVAL;
635 goto done;
636 }
637 *crypt = new_crypt;
638 }
639
640 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
641 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
642 (*crypt)->priv) < 0) {
643 LIBIPW_DEBUG_WX("%s: key setting failed\n", dev->name);
644 ret = -EINVAL;
645 goto done;
646 }
647
648 skip_host_crypt:
649 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
650 ieee->crypt_info.tx_keyidx = idx;
651 sec.active_key = idx;
652 sec.flags |= SEC_ACTIVE_KEY;
653 }
654
655 if (ext->alg != IW_ENCODE_ALG_NONE) {
656 memcpy(sec.keys[idx], ext->key, ext->key_len);
657 sec.key_sizes[idx] = ext->key_len;
658 sec.flags |= (1 << idx);
659 if (ext->alg == IW_ENCODE_ALG_WEP) {
660 sec.encode_alg[idx] = SEC_ALG_WEP;
661 sec.flags |= SEC_LEVEL;
662 sec.level = SEC_LEVEL_1;
663 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
664 sec.encode_alg[idx] = SEC_ALG_TKIP;
665 sec.flags |= SEC_LEVEL;
666 sec.level = SEC_LEVEL_2;
667 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
668 sec.encode_alg[idx] = SEC_ALG_CCMP;
669 sec.flags |= SEC_LEVEL;
670 sec.level = SEC_LEVEL_3;
671 }
672
673 if (group_key)
674 sec.flags &= ~SEC_LEVEL;
675 }
676 done:
677 if (ieee->set_security)
678 ieee->set_security(dev, &sec);
679
680 return ret;
681}
682
683int libipw_wx_get_encodeext(struct libipw_device *ieee,
684 struct iw_request_info *info,
685 union iwreq_data *wrqu, char *extra)
686{
687 struct iw_point *encoding = &wrqu->encoding;
688 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
689 struct libipw_security *sec = &ieee->sec;
690 int idx, max_key_len;
691
692 max_key_len = encoding->length - sizeof(*ext);
693 if (max_key_len < 0)
694 return -EINVAL;
695
696 idx = encoding->flags & IW_ENCODE_INDEX;
697 if (idx) {
698 if (idx < 1 || idx > WEP_KEYS)
699 return -EINVAL;
700 idx--;
701 } else
702 idx = ieee->crypt_info.tx_keyidx;
703
704 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
705 ext->alg != IW_ENCODE_ALG_WEP)
706 if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
707 return -EINVAL;
708
709 encoding->flags = idx + 1;
710 memset(ext, 0, sizeof(*ext));
711
712 if (!sec->enabled) {
713 ext->alg = IW_ENCODE_ALG_NONE;
714 ext->key_len = 0;
715 encoding->flags |= IW_ENCODE_DISABLED;
716 } else {
717 if (sec->encode_alg[idx] == SEC_ALG_WEP)
718 ext->alg = IW_ENCODE_ALG_WEP;
719 else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
720 ext->alg = IW_ENCODE_ALG_TKIP;
721 else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
722 ext->alg = IW_ENCODE_ALG_CCMP;
723 else
724 return -EINVAL;
725
726 ext->key_len = sec->key_sizes[idx];
727 memcpy(ext->key, sec->keys[idx], ext->key_len);
728 encoding->flags |= IW_ENCODE_ENABLED;
729 if (ext->key_len &&
730 (ext->alg == IW_ENCODE_ALG_TKIP ||
731 ext->alg == IW_ENCODE_ALG_CCMP))
732 ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
733
734 }
735
736 return 0;
737}
738
739EXPORT_SYMBOL(libipw_wx_set_encodeext);
740EXPORT_SYMBOL(libipw_wx_get_encodeext);
741
742EXPORT_SYMBOL(libipw_wx_get_scan);
743EXPORT_SYMBOL(libipw_wx_set_encode);
744EXPORT_SYMBOL(libipw_wx_get_encode);
745
