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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
276 LIBIPW_DEBUG_WX("Getting scan\n");
277
278 spin_lock_irqsave(&ieee->lock, flags);
279
280 list_for_each_entry(network, &ieee->network_list, list) {
281 i++;
282 if (stop - ev < SCAN_ITEM_SIZE) {
283 err = -E2BIG;
284 break;
285 }
286
287 if (ieee->scan_age == 0 ||
288 time_after(network->last_scanned + ieee->scan_age, jiffies))
289 ev = libipw_translate_scan(ieee, ev, stop, network,
290 info);
291 else {
292 LIBIPW_DEBUG_SCAN("Not showing network '%*pE (%pM)' due to age (%ums).\n",
293 network->ssid_len, network->ssid,
294 network->bssid,
295 elapsed_jiffies_msecs(
296 network->last_scanned));
297 }
298 }
299
300 spin_unlock_irqrestore(&ieee->lock, flags);
301
302 wrqu->data.length = ev - extra;
303 wrqu->data.flags = 0;
304
305 LIBIPW_DEBUG_WX("exit: %d networks returned.\n", i);
306
307 return err;
308}
309
310int libipw_wx_set_encode(struct libipw_device *ieee,
311 struct iw_request_info *info,
312 union iwreq_data *wrqu, char *keybuf)
313{
314 struct iw_point *erq = &(wrqu->encoding);
315 struct net_device *dev = ieee->dev;
316 struct libipw_security sec = {
317 .flags = 0
318 };
319 int i, key, key_provided, len;
320 struct lib80211_crypt_data **crypt;
321 int host_crypto = ieee->host_encrypt || ieee->host_decrypt;
322
323 LIBIPW_DEBUG_WX("SET_ENCODE\n");
324
325 key = erq->flags & IW_ENCODE_INDEX;
326 if (key) {
327 if (key > WEP_KEYS)
328 return -EINVAL;
329 key--;
330 key_provided = 1;
331 } else {
332 key_provided = 0;
333 key = ieee->crypt_info.tx_keyidx;
334 }
335
336 LIBIPW_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
337 "provided" : "default");
338
339 crypt = &ieee->crypt_info.crypt[key];
340
341 if (erq->flags & IW_ENCODE_DISABLED) {
342 if (key_provided && *crypt) {
343 LIBIPW_DEBUG_WX("Disabling encryption on key %d.\n",
344 key);
345 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
346 } else
347 LIBIPW_DEBUG_WX("Disabling encryption.\n");
348
349
350
351 for (i = 0; i < WEP_KEYS; i++) {
352 if (ieee->crypt_info.crypt[i] != NULL) {
353 if (key_provided)
354 break;
355 lib80211_crypt_delayed_deinit(&ieee->crypt_info,
356 &ieee->crypt_info.crypt[i]);
357 }
358 }
359
360 if (i == WEP_KEYS) {
361 sec.enabled = 0;
362 sec.encrypt = 0;
363 sec.level = SEC_LEVEL_0;
364 sec.flags |= SEC_ENABLED | SEC_LEVEL | SEC_ENCRYPT;
365 }
366
367 goto done;
368 }
369
370 sec.enabled = 1;
371 sec.encrypt = 1;
372 sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
373
374 if (*crypt != NULL && (*crypt)->ops != NULL &&
375 strcmp((*crypt)->ops->name, "WEP") != 0) {
376
377
378 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
379 }
380
381 if (*crypt == NULL && host_crypto) {
382 struct lib80211_crypt_data *new_crypt;
383
384
385 new_crypt = kzalloc(sizeof(struct lib80211_crypt_data),
386 GFP_KERNEL);
387 if (new_crypt == NULL)
388 return -ENOMEM;
389 new_crypt->ops = lib80211_get_crypto_ops("WEP");
390 if (!new_crypt->ops) {
391 request_module("lib80211_crypt_wep");
392 new_crypt->ops = lib80211_get_crypto_ops("WEP");
393 }
394
395 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
396 new_crypt->priv = new_crypt->ops->init(key);
397
398 if (!new_crypt->ops || !new_crypt->priv) {
399 kfree(new_crypt);
400 new_crypt = NULL;
401
402 printk(KERN_WARNING "%s: could not initialize WEP: "
403 "load module lib80211_crypt_wep\n", dev->name);
404 return -EOPNOTSUPP;
405 }
406 *crypt = new_crypt;
407 }
408
409
410 if (erq->length > 0) {
411 len = erq->length <= 5 ? 5 : 13;
412 memcpy(sec.keys[key], keybuf, erq->length);
413 if (len > erq->length)
414 memset(sec.keys[key] + erq->length, 0,
415 len - erq->length);
416 LIBIPW_DEBUG_WX("Setting key %d to '%*pE' (%d:%d bytes)\n",
417 key, len, sec.keys[key],
418 erq->length, len);
419 sec.key_sizes[key] = len;
420 if (*crypt)
421 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
422 (*crypt)->priv);
423 sec.flags |= (1 << key);
424
425
426 if (key == sec.active_key)
427 sec.flags |= SEC_ACTIVE_KEY;
428
429 } else {
430 if (host_crypto) {
431 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
432 NULL, (*crypt)->priv);
433 if (len == 0) {
434
435 LIBIPW_DEBUG_WX("Setting key %d to all "
436 "zero.\n", key);
437 memset(sec.keys[key], 0, 13);
438 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
439 (*crypt)->priv);
440 sec.key_sizes[key] = 13;
441 sec.flags |= (1 << key);
442 }
443 }
444
445 if (key_provided) {
446 LIBIPW_DEBUG_WX("Setting key %d to default Tx "
447 "key.\n", key);
448 ieee->crypt_info.tx_keyidx = key;
449 sec.active_key = key;
450 sec.flags |= SEC_ACTIVE_KEY;
451 }
452 }
453 if (erq->flags & (IW_ENCODE_OPEN | IW_ENCODE_RESTRICTED)) {
454 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
455 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
456 WLAN_AUTH_SHARED_KEY;
457 sec.flags |= SEC_AUTH_MODE;
458 LIBIPW_DEBUG_WX("Auth: %s\n",
459 sec.auth_mode == WLAN_AUTH_OPEN ?
460 "OPEN" : "SHARED KEY");
461 }
462
463
464
465 sec.flags |= SEC_LEVEL;
466 sec.level = SEC_LEVEL_1;
467 sec.encode_alg[key] = SEC_ALG_WEP;
468
469 done:
470 if (ieee->set_security)
471 ieee->set_security(dev, &sec);
472
473 return 0;
474}
475
476int libipw_wx_get_encode(struct libipw_device *ieee,
477 struct iw_request_info *info,
478 union iwreq_data *wrqu, char *keybuf)
479{
480 struct iw_point *erq = &(wrqu->encoding);
481 int len, key;
482 struct libipw_security *sec = &ieee->sec;
483
484 LIBIPW_DEBUG_WX("GET_ENCODE\n");
485
486 key = erq->flags & IW_ENCODE_INDEX;
487 if (key) {
488 if (key > WEP_KEYS)
489 return -EINVAL;
490 key--;
491 } else
492 key = ieee->crypt_info.tx_keyidx;
493
494 erq->flags = key + 1;
495
496 if (!sec->enabled) {
497 erq->length = 0;
498 erq->flags |= IW_ENCODE_DISABLED;
499 return 0;
500 }
501
502 len = sec->key_sizes[key];
503 memcpy(keybuf, sec->keys[key], len);
504
505 erq->length = len;
506 erq->flags |= IW_ENCODE_ENABLED;
507
508 if (ieee->open_wep)
509 erq->flags |= IW_ENCODE_OPEN;
510 else
511 erq->flags |= IW_ENCODE_RESTRICTED;
512
513 return 0;
514}
515
516int libipw_wx_set_encodeext(struct libipw_device *ieee,
517 struct iw_request_info *info,
518 union iwreq_data *wrqu, char *extra)
519{
520 struct net_device *dev = ieee->dev;
521 struct iw_point *encoding = &wrqu->encoding;
522 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
523 int i, idx, ret = 0;
524 int group_key = 0;
525 const char *alg, *module;
526 struct lib80211_crypto_ops *ops;
527 struct lib80211_crypt_data **crypt;
528
529 struct libipw_security sec = {
530 .flags = 0,
531 };
532
533 idx = encoding->flags & IW_ENCODE_INDEX;
534 if (idx) {
535 if (idx < 1 || idx > WEP_KEYS)
536 return -EINVAL;
537 idx--;
538 } else
539 idx = ieee->crypt_info.tx_keyidx;
540
541 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
542 crypt = &ieee->crypt_info.crypt[idx];
543 group_key = 1;
544 } else {
545
546 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
547 return -EINVAL;
548 if (ieee->iw_mode == IW_MODE_INFRA)
549 crypt = &ieee->crypt_info.crypt[idx];
550 else
551 return -EINVAL;
552 }
553
554 sec.flags |= SEC_ENABLED | SEC_ENCRYPT;
555 if ((encoding->flags & IW_ENCODE_DISABLED) ||
556 ext->alg == IW_ENCODE_ALG_NONE) {
557 if (*crypt)
558 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
559
560 for (i = 0; i < WEP_KEYS; i++)
561 if (ieee->crypt_info.crypt[i] != NULL)
562 break;
563
564 if (i == WEP_KEYS) {
565 sec.enabled = 0;
566 sec.encrypt = 0;
567 sec.level = SEC_LEVEL_0;
568 sec.flags |= SEC_LEVEL;
569 }
570 goto done;
571 }
572
573 sec.enabled = 1;
574 sec.encrypt = 1;
575
576 if (group_key ? !ieee->host_mc_decrypt :
577 !(ieee->host_encrypt || ieee->host_decrypt ||
578 ieee->host_encrypt_msdu))
579 goto skip_host_crypt;
580
581 switch (ext->alg) {
582 case IW_ENCODE_ALG_WEP:
583 alg = "WEP";
584 module = "lib80211_crypt_wep";
585 break;
586 case IW_ENCODE_ALG_TKIP:
587 alg = "TKIP";
588 module = "lib80211_crypt_tkip";
589 break;
590 case IW_ENCODE_ALG_CCMP:
591 alg = "CCMP";
592 module = "lib80211_crypt_ccmp";
593 break;
594 default:
595 LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n",
596 dev->name, ext->alg);
597 ret = -EINVAL;
598 goto done;
599 }
600
601 ops = lib80211_get_crypto_ops(alg);
602 if (ops == NULL) {
603 request_module(module);
604 ops = lib80211_get_crypto_ops(alg);
605 }
606 if (ops == NULL) {
607 LIBIPW_DEBUG_WX("%s: unknown crypto alg %d\n",
608 dev->name, ext->alg);
609 ret = -EINVAL;
610 goto done;
611 }
612
613 if (*crypt == NULL || (*crypt)->ops != ops) {
614 struct lib80211_crypt_data *new_crypt;
615
616 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
617
618 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
619 if (new_crypt == NULL) {
620 ret = -ENOMEM;
621 goto done;
622 }
623 new_crypt->ops = ops;
624 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
625 new_crypt->priv = new_crypt->ops->init(idx);
626 if (new_crypt->priv == NULL) {
627 kfree(new_crypt);
628 ret = -EINVAL;
629 goto done;
630 }
631 *crypt = new_crypt;
632 }
633
634 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
635 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
636 (*crypt)->priv) < 0) {
637 LIBIPW_DEBUG_WX("%s: key setting failed\n", dev->name);
638 ret = -EINVAL;
639 goto done;
640 }
641
642 skip_host_crypt:
643 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
644 ieee->crypt_info.tx_keyidx = idx;
645 sec.active_key = idx;
646 sec.flags |= SEC_ACTIVE_KEY;
647 }
648
649 if (ext->alg != IW_ENCODE_ALG_NONE) {
650 memcpy(sec.keys[idx], ext->key, ext->key_len);
651 sec.key_sizes[idx] = ext->key_len;
652 sec.flags |= (1 << idx);
653 if (ext->alg == IW_ENCODE_ALG_WEP) {
654 sec.encode_alg[idx] = SEC_ALG_WEP;
655 sec.flags |= SEC_LEVEL;
656 sec.level = SEC_LEVEL_1;
657 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
658 sec.encode_alg[idx] = SEC_ALG_TKIP;
659 sec.flags |= SEC_LEVEL;
660 sec.level = SEC_LEVEL_2;
661 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
662 sec.encode_alg[idx] = SEC_ALG_CCMP;
663 sec.flags |= SEC_LEVEL;
664 sec.level = SEC_LEVEL_3;
665 }
666
667 if (group_key)
668 sec.flags &= ~SEC_LEVEL;
669 }
670 done:
671 if (ieee->set_security)
672 ieee->set_security(dev, &sec);
673
674 return ret;
675}
676
677int libipw_wx_get_encodeext(struct libipw_device *ieee,
678 struct iw_request_info *info,
679 union iwreq_data *wrqu, char *extra)
680{
681 struct iw_point *encoding = &wrqu->encoding;
682 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
683 struct libipw_security *sec = &ieee->sec;
684 int idx, max_key_len;
685
686 max_key_len = encoding->length - sizeof(*ext);
687 if (max_key_len < 0)
688 return -EINVAL;
689
690 idx = encoding->flags & IW_ENCODE_INDEX;
691 if (idx) {
692 if (idx < 1 || idx > WEP_KEYS)
693 return -EINVAL;
694 idx--;
695 } else
696 idx = ieee->crypt_info.tx_keyidx;
697
698 if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
699 ext->alg != IW_ENCODE_ALG_WEP)
700 if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
701 return -EINVAL;
702
703 encoding->flags = idx + 1;
704 memset(ext, 0, sizeof(*ext));
705
706 if (!sec->enabled) {
707 ext->alg = IW_ENCODE_ALG_NONE;
708 ext->key_len = 0;
709 encoding->flags |= IW_ENCODE_DISABLED;
710 } else {
711 if (sec->encode_alg[idx] == SEC_ALG_WEP)
712 ext->alg = IW_ENCODE_ALG_WEP;
713 else if (sec->encode_alg[idx] == SEC_ALG_TKIP)
714 ext->alg = IW_ENCODE_ALG_TKIP;
715 else if (sec->encode_alg[idx] == SEC_ALG_CCMP)
716 ext->alg = IW_ENCODE_ALG_CCMP;
717 else
718 return -EINVAL;
719
720 ext->key_len = sec->key_sizes[idx];
721 memcpy(ext->key, sec->keys[idx], ext->key_len);
722 encoding->flags |= IW_ENCODE_ENABLED;
723 if (ext->key_len &&
724 (ext->alg == IW_ENCODE_ALG_TKIP ||
725 ext->alg == IW_ENCODE_ALG_CCMP))
726 ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
727
728 }
729
730 return 0;
731}
732
733EXPORT_SYMBOL(libipw_wx_set_encodeext);
734EXPORT_SYMBOL(libipw_wx_get_encodeext);
735
736EXPORT_SYMBOL(libipw_wx_get_scan);
737EXPORT_SYMBOL(libipw_wx_set_encode);
738EXPORT_SYMBOL(libipw_wx_get_encode);
739
