1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright(c) 2004 Intel Corporation. All rights reserved.
4 *
5 * Portions of this file are based on the WEP enablement code provided by the
6 * Host AP project hostap-drivers v0.1.3
7 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
8 * <jkmaline@cc.hut.fi>
9 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
10 *
11 * Contact Information:
12 * James P. Ketrenos <ipw2100-admin@linux.intel.com>
13 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
14 */
15 #include <linux/wireless.h>
16 #include <linux/kmod.h>
17 #include <linux/module.h>
18 #include <linux/etherdevice.h>
19 #include "rtllib.h"
20
21 static const char * const rtllib_modes[] = {
22 "a", "b", "g", "?", "N-24G", "N-5G"
23 };
24
25 #define MAX_CUSTOM_LEN 64
rtl819x_translate_scan(struct rtllib_device * ieee,char * start,char * stop,struct rtllib_network * network,struct iw_request_info * info)26 static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
27 char *start, char *stop,
28 struct rtllib_network *network,
29 struct iw_request_info *info)
30 {
31 char custom[MAX_CUSTOM_LEN];
32 char proto_name[IFNAMSIZ];
33 char *pname = proto_name;
34 char *p;
35 struct iw_event iwe;
36 int i, j;
37 u16 max_rate, rate;
38 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
39
40 /* First entry *MUST* be the AP MAC address */
41 iwe.cmd = SIOCGIWAP;
42 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
43 ether_addr_copy(iwe.u.ap_addr.sa_data, network->bssid);
44 start = iwe_stream_add_event_rsl(info, start, stop,
45 &iwe, IW_EV_ADDR_LEN);
46 /* Remaining entries will be displayed in the order we provide them */
47
48 /* Add the ESSID */
49 iwe.cmd = SIOCGIWESSID;
50 iwe.u.data.flags = 1;
51 if (network->ssid_len > 0) {
52 iwe.u.data.length = min_t(u8, network->ssid_len, 32);
53 start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
54 network->ssid);
55 } else if (network->hidden_ssid_len == 0) {
56 iwe.u.data.length = sizeof("<hidden>");
57 start = iwe_stream_add_point_rsl(info, start, stop,
58 &iwe, "<hidden>");
59 } else {
60 iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32);
61 start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
62 network->hidden_ssid);
63 }
64 /* Add the protocol name */
65 iwe.cmd = SIOCGIWNAME;
66 for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) {
67 if (network->mode & BIT(i)) {
68 strcpy(pname, rtllib_modes[i]);
69 pname += strlen(rtllib_modes[i]);
70 }
71 }
72 *pname = '\0';
73 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
74 start = iwe_stream_add_event_rsl(info, start, stop,
75 &iwe, IW_EV_CHAR_LEN);
76 /* Add mode */
77 iwe.cmd = SIOCGIWMODE;
78 if (network->capability &
79 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
80 if (network->capability & WLAN_CAPABILITY_ESS)
81 iwe.u.mode = IW_MODE_MASTER;
82 else
83 iwe.u.mode = IW_MODE_ADHOC;
84 start = iwe_stream_add_event_rsl(info, start, stop,
85 &iwe, IW_EV_UINT_LEN);
86 }
87
88 /* Add frequency/channel */
89 iwe.cmd = SIOCGIWFREQ;
90 iwe.u.freq.m = network->channel;
91 iwe.u.freq.e = 0;
92 iwe.u.freq.i = 0;
93 start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
94 IW_EV_FREQ_LEN);
95
96 /* Add encryption capability */
97 iwe.cmd = SIOCGIWENCODE;
98 if (network->capability & WLAN_CAPABILITY_PRIVACY)
99 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
100 else
101 iwe.u.data.flags = IW_ENCODE_DISABLED;
102 iwe.u.data.length = 0;
103 start = iwe_stream_add_point_rsl(info, start, stop,
104 &iwe, network->ssid);
105 /* Add basic and extended rates */
106 max_rate = 0;
107 p = custom;
108 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
109 for (i = 0, j = 0; i < network->rates_len;) {
110 if (j < network->rates_ex_len &&
111 ((network->rates_ex[j] & 0x7F) <
112 (network->rates[i] & 0x7F)))
113 rate = network->rates_ex[j++] & 0x7F;
114 else
115 rate = network->rates[i++] & 0x7F;
116 if (rate > max_rate)
117 max_rate = rate;
118 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
119 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
120 }
121 for (; j < network->rates_ex_len; j++) {
122 rate = network->rates_ex[j] & 0x7F;
123 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
124 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
125 if (rate > max_rate)
126 max_rate = rate;
127 }
128
129 if (network->mode >= IEEE_N_24G) {
130 struct ht_capab_ele *ht_cap = NULL;
131 bool is40M = false, isShortGI = false;
132 u8 max_mcs = 0;
133
134 if (!memcmp(network->bssht.bd_ht_cap_buf, EWC11NHTCap, 4))
135 ht_cap = (struct ht_capab_ele *)
136 &network->bssht.bd_ht_cap_buf[4];
137 else
138 ht_cap = (struct ht_capab_ele *)
139 &network->bssht.bd_ht_cap_buf[0];
140 is40M = (ht_cap->ChlWidth) ? 1 : 0;
141 isShortGI = (ht_cap->ChlWidth) ?
142 ((ht_cap->ShortGI40Mhz) ? 1 : 0) :
143 ((ht_cap->ShortGI20Mhz) ? 1 : 0);
144
145 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS,
146 MCS_FILTER_ALL);
147 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f];
148 if (rate > max_rate)
149 max_rate = rate;
150 }
151 iwe.cmd = SIOCGIWRATE;
152 iwe.u.bitrate.disabled = 0;
153 iwe.u.bitrate.fixed = 0;
154 iwe.u.bitrate.value = max_rate * 500000;
155 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_PARAM_LEN);
156 iwe.cmd = IWEVCUSTOM;
157 iwe.u.data.length = p - custom;
158 if (iwe.u.data.length)
159 start = iwe_stream_add_point_rsl(info, start, stop,
160 &iwe, custom);
161 /* Add quality statistics */
162 /* TODO: Fix these values... */
163 iwe.cmd = IWEVQUAL;
164 iwe.u.qual.qual = network->stats.signal;
165 iwe.u.qual.level = network->stats.rssi;
166 iwe.u.qual.noise = network->stats.noise;
167 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK;
168 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI))
169 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
170 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE))
171 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
172 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL))
173 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
174 iwe.u.qual.updated = 7;
175 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
176
177 iwe.cmd = IWEVCUSTOM;
178 p = custom;
179 iwe.u.data.length = p - custom;
180 if (iwe.u.data.length)
181 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, custom);
182
183 memset(&iwe, 0, sizeof(iwe));
184 if (network->wpa_ie_len) {
185 char buf[MAX_WPA_IE_LEN];
186
187 memcpy(buf, network->wpa_ie, network->wpa_ie_len);
188 iwe.cmd = IWEVGENIE;
189 iwe.u.data.length = network->wpa_ie_len;
190 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
191 }
192 memset(&iwe, 0, sizeof(iwe));
193 if (network->rsn_ie_len) {
194 char buf[MAX_WPA_IE_LEN];
195
196 memcpy(buf, network->rsn_ie, network->rsn_ie_len);
197 iwe.cmd = IWEVGENIE;
198 iwe.u.data.length = network->rsn_ie_len;
199 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
200 }
201
202 /* add info for WZC */
203 memset(&iwe, 0, sizeof(iwe));
204 if (network->wzc_ie_len) {
205 char buf[MAX_WZC_IE_LEN];
206
207 memcpy(buf, network->wzc_ie, network->wzc_ie_len);
208 iwe.cmd = IWEVGENIE;
209 iwe.u.data.length = network->wzc_ie_len;
210 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
211 }
212
213 /* Add EXTRA: Age to display seconds since last beacon/probe response
214 * for given network.
215 */
216 iwe.cmd = IWEVCUSTOM;
217 p = custom;
218 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
219 " Last beacon: %lums ago",
220 (jiffies - network->last_scanned) / (HZ / 100));
221 iwe.u.data.length = p - custom;
222 if (iwe.u.data.length)
223 start = iwe_stream_add_point_rsl(info, start, stop,
224 &iwe, custom);
225
226 return start;
227 }
228
rtllib_wx_get_scan(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)229 int rtllib_wx_get_scan(struct rtllib_device *ieee,
230 struct iw_request_info *info,
231 union iwreq_data *wrqu, char *extra)
232 {
233 struct rtllib_network *network;
234 unsigned long flags;
235
236 char *ev = extra;
237 char *stop = ev + wrqu->data.length;
238 int i = 0;
239 int err = 0;
240
241 netdev_dbg(ieee->dev, "Getting scan\n");
242 mutex_lock(&ieee->wx_mutex);
243 spin_lock_irqsave(&ieee->lock, flags);
244
245 list_for_each_entry(network, &ieee->network_list, list) {
246 i++;
247 if ((stop - ev) < 200) {
248 err = -E2BIG;
249 break;
250 }
251 if (ieee->scan_age == 0 ||
252 time_after(network->last_scanned + ieee->scan_age, jiffies))
253 ev = rtl819x_translate_scan(ieee, ev, stop, network,
254 info);
255 else
256 netdev_dbg(ieee->dev,
257 "Network '%s ( %pM)' hidden due to age (%lums).\n",
258 escape_essid(network->ssid,
259 network->ssid_len),
260 network->bssid,
261 (jiffies - network->last_scanned) /
262 (HZ / 100));
263 }
264
265 spin_unlock_irqrestore(&ieee->lock, flags);
266 mutex_unlock(&ieee->wx_mutex);
267 wrqu->data.length = ev - extra;
268 wrqu->data.flags = 0;
269
270 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i);
271
272 return err;
273 }
274 EXPORT_SYMBOL(rtllib_wx_get_scan);
275
rtllib_wx_set_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)276 int rtllib_wx_set_encode(struct rtllib_device *ieee,
277 struct iw_request_info *info,
278 union iwreq_data *wrqu, char *keybuf)
279 {
280 struct iw_point *erq = &wrqu->encoding;
281 struct net_device *dev = ieee->dev;
282 struct rtllib_security sec = {
283 .flags = 0
284 };
285 int i, key, key_provided, len;
286 struct lib80211_crypt_data **crypt;
287
288 key = erq->flags & IW_ENCODE_INDEX;
289 if (key) {
290 if (key > NUM_WEP_KEYS)
291 return -EINVAL;
292 key--;
293 key_provided = 1;
294 } else {
295 key_provided = 0;
296 key = ieee->crypt_info.tx_keyidx;
297 }
298
299 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ?
300 "provided" : "default");
301 crypt = &ieee->crypt_info.crypt[key];
302 if (erq->flags & IW_ENCODE_DISABLED) {
303 if (key_provided && *crypt) {
304 netdev_dbg(ieee->dev,
305 "Disabling encryption on key %d.\n", key);
306 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
307 } else {
308 netdev_dbg(ieee->dev, "Disabling encryption.\n");
309 }
310
311 /* Check all the keys to see if any are still configured,
312 * and if no key index was provided, de-init them all
313 */
314 for (i = 0; i < NUM_WEP_KEYS; i++) {
315 if (ieee->crypt_info.crypt[i]) {
316 if (key_provided)
317 break;
318 lib80211_crypt_delayed_deinit(&ieee->crypt_info,
319 &ieee->crypt_info.crypt[i]);
320 }
321 }
322
323 if (i == NUM_WEP_KEYS) {
324 sec.enabled = 0;
325 sec.level = SEC_LEVEL_0;
326 sec.flags |= SEC_ENABLED | SEC_LEVEL;
327 }
328
329 goto done;
330 }
331
332 sec.enabled = 1;
333 sec.flags |= SEC_ENABLED;
334
335 if (*crypt && (*crypt)->ops &&
336 strcmp((*crypt)->ops->name, "R-WEP") != 0) {
337 /* changing to use WEP; deinit previously used algorithm
338 * on this key
339 */
340 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
341 }
342
343 if (!*crypt) {
344 struct lib80211_crypt_data *new_crypt;
345
346 /* take WEP into use */
347 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
348 if (!new_crypt)
349 return -ENOMEM;
350 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
351 if (!new_crypt->ops) {
352 request_module("rtllib_crypt_wep");
353 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
354 }
355
356 if (new_crypt->ops)
357 new_crypt->priv = new_crypt->ops->init(key);
358
359 if (!new_crypt->ops || !new_crypt->priv) {
360 kfree(new_crypt);
361 new_crypt = NULL;
362
363 netdev_warn(dev,
364 "%s: could not initialize WEP: load module rtllib_crypt_wep\n",
365 dev->name);
366 return -EOPNOTSUPP;
367 }
368 *crypt = new_crypt;
369 }
370
371 /* If a new key was provided, set it up */
372 if (erq->length > 0) {
373 len = erq->length <= 5 ? 5 : 13;
374 memcpy(sec.keys[key], keybuf, erq->length);
375 if (len > erq->length)
376 memset(sec.keys[key] + erq->length, 0,
377 len - erq->length);
378 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n",
379 key, escape_essid(sec.keys[key], len), erq->length,
380 len);
381 sec.key_sizes[key] = len;
382 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
383 (*crypt)->priv);
384 sec.flags |= (1 << key);
385 /* This ensures a key will be activated if no key is
386 * explicitly set
387 */
388 if (key == sec.active_key)
389 sec.flags |= SEC_ACTIVE_KEY;
390 ieee->crypt_info.tx_keyidx = key;
391
392 } else {
393 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
394 NULL, (*crypt)->priv);
395 if (len == 0) {
396 /* Set a default key of all 0 */
397 netdev_info(ieee->dev, "Setting key %d to all zero.\n", key);
398
399 memset(sec.keys[key], 0, 13);
400 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
401 (*crypt)->priv);
402 sec.key_sizes[key] = 13;
403 sec.flags |= (1 << key);
404 }
405
406 /* No key data - just set the default TX key index */
407 if (key_provided) {
408 netdev_dbg(ieee->dev,
409 "Setting key %d as default Tx key.\n", key);
410 ieee->crypt_info.tx_keyidx = key;
411 sec.active_key = key;
412 sec.flags |= SEC_ACTIVE_KEY;
413 }
414 }
415 done:
416 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
417 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
418 WLAN_AUTH_SHARED_KEY;
419 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
420 sec.flags |= SEC_AUTH_MODE;
421 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
422 "OPEN" : "SHARED KEY");
423
424 /* For now we just support WEP, so only set that security level...
425 * TODO: When WPA is added this is one place that needs to change
426 */
427 sec.flags |= SEC_LEVEL;
428 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
429
430 if (ieee->set_security)
431 ieee->set_security(dev, &sec);
432
433 /* Do not reset port if card is in Managed mode since resetting will
434 * generate new IEEE 802.11 authentication which may end up in looping
435 * with IEEE 802.1X. If your hardware requires a reset after WEP
436 * configuration (for example... Prism2), implement the reset_port in
437 * the callbacks structures used to initialize the 802.11 stack.
438 */
439 if (ieee->reset_on_keychange &&
440 ieee->iw_mode != IW_MODE_INFRA &&
441 ieee->reset_port && ieee->reset_port(dev)) {
442 netdev_dbg(dev, "%s: reset_port failed\n", dev->name);
443 return -EINVAL;
444 }
445 return 0;
446 }
447 EXPORT_SYMBOL(rtllib_wx_set_encode);
448
rtllib_wx_get_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)449 int rtllib_wx_get_encode(struct rtllib_device *ieee,
450 struct iw_request_info *info,
451 union iwreq_data *wrqu, char *keybuf)
452 {
453 struct iw_point *erq = &wrqu->encoding;
454 int len, key;
455 struct lib80211_crypt_data *crypt;
456
457 if (ieee->iw_mode == IW_MODE_MONITOR)
458 return -1;
459
460 key = erq->flags & IW_ENCODE_INDEX;
461 if (key) {
462 if (key > NUM_WEP_KEYS)
463 return -EINVAL;
464 key--;
465 } else {
466 key = ieee->crypt_info.tx_keyidx;
467 }
468 crypt = ieee->crypt_info.crypt[key];
469
470 erq->flags = key + 1;
471
472 if (!crypt || !crypt->ops) {
473 erq->length = 0;
474 erq->flags |= IW_ENCODE_DISABLED;
475 return 0;
476 }
477 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
478
479 erq->length = max(len, 0);
480
481 erq->flags |= IW_ENCODE_ENABLED;
482
483 if (ieee->open_wep)
484 erq->flags |= IW_ENCODE_OPEN;
485 else
486 erq->flags |= IW_ENCODE_RESTRICTED;
487
488 return 0;
489 }
490 EXPORT_SYMBOL(rtllib_wx_get_encode);
491
rtllib_wx_set_encode_ext(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)492 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
493 struct iw_request_info *info,
494 union iwreq_data *wrqu, char *extra)
495 {
496 int ret = 0;
497 struct net_device *dev = ieee->dev;
498 struct iw_point *encoding = &wrqu->encoding;
499 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
500 int i, idx;
501 int group_key = 0;
502 const char *alg, *module;
503 struct lib80211_crypto_ops *ops;
504 struct lib80211_crypt_data **crypt;
505
506 struct rtllib_security sec = {
507 .flags = 0,
508 };
509 idx = encoding->flags & IW_ENCODE_INDEX;
510 if (idx) {
511 if (idx < 1 || idx > NUM_WEP_KEYS)
512 return -EINVAL;
513 idx--;
514 } else {
515 idx = ieee->crypt_info.tx_keyidx;
516 }
517 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
518 crypt = &ieee->crypt_info.crypt[idx];
519 group_key = 1;
520 } else {
521 /* some Cisco APs use idx>0 for unicast in dynamic WEP */
522 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
523 return -EINVAL;
524 if (ieee->iw_mode == IW_MODE_INFRA)
525 crypt = &ieee->crypt_info.crypt[idx];
526 else
527 return -EINVAL;
528 }
529
530 sec.flags |= SEC_ENABLED;
531 if ((encoding->flags & IW_ENCODE_DISABLED) ||
532 ext->alg == IW_ENCODE_ALG_NONE) {
533 if (*crypt)
534 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
535
536 for (i = 0; i < NUM_WEP_KEYS; i++) {
537 if (ieee->crypt_info.crypt[i])
538 break;
539 }
540 if (i == NUM_WEP_KEYS) {
541 sec.enabled = 0;
542 sec.level = SEC_LEVEL_0;
543 sec.flags |= SEC_LEVEL;
544 }
545 goto done;
546 }
547
548 sec.enabled = 1;
549 switch (ext->alg) {
550 case IW_ENCODE_ALG_WEP:
551 alg = "R-WEP";
552 module = "rtllib_crypt_wep";
553 break;
554 case IW_ENCODE_ALG_TKIP:
555 alg = "R-TKIP";
556 module = "rtllib_crypt_tkip";
557 break;
558 case IW_ENCODE_ALG_CCMP:
559 alg = "R-CCMP";
560 module = "rtllib_crypt_ccmp";
561 break;
562 default:
563 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg);
564 ret = -EINVAL;
565 goto done;
566 }
567 netdev_dbg(dev, "alg name:%s\n", alg);
568
569 ops = lib80211_get_crypto_ops(alg);
570 if (!ops) {
571 char tempbuf[100];
572
573 memset(tempbuf, 0x00, 100);
574 sprintf(tempbuf, "%s", module);
575 request_module("%s", tempbuf);
576 ops = lib80211_get_crypto_ops(alg);
577 }
578 if (!ops) {
579 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg);
580 ret = -EINVAL;
581 goto done;
582 }
583
584 if (!*crypt || (*crypt)->ops != ops) {
585 struct lib80211_crypt_data *new_crypt;
586
587 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
588
589 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
590 if (!new_crypt) {
591 ret = -ENOMEM;
592 goto done;
593 }
594 new_crypt->ops = ops;
595 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
596 new_crypt->priv = new_crypt->ops->init(idx);
597
598 if (!new_crypt->priv) {
599 kfree(new_crypt);
600 ret = -EINVAL;
601 goto done;
602 }
603 *crypt = new_crypt;
604 }
605
606 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
607 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
608 (*crypt)->priv) < 0) {
609 netdev_info(dev, "key setting failed\n");
610 ret = -EINVAL;
611 goto done;
612 }
613 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
614 ieee->crypt_info.tx_keyidx = idx;
615 sec.active_key = idx;
616 sec.flags |= SEC_ACTIVE_KEY;
617 }
618 if (ext->alg != IW_ENCODE_ALG_NONE) {
619 sec.key_sizes[idx] = ext->key_len;
620 sec.flags |= (1 << idx);
621 if (ext->alg == IW_ENCODE_ALG_WEP) {
622 sec.flags |= SEC_LEVEL;
623 sec.level = SEC_LEVEL_1;
624 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
625 sec.flags |= SEC_LEVEL;
626 sec.level = SEC_LEVEL_2;
627 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
628 sec.flags |= SEC_LEVEL;
629 sec.level = SEC_LEVEL_3;
630 }
631 /* Don't set sec level for group keys. */
632 if (group_key)
633 sec.flags &= ~SEC_LEVEL;
634 }
635 done:
636 if (ieee->set_security)
637 ieee->set_security(ieee->dev, &sec);
638
639 if (ieee->reset_on_keychange &&
640 ieee->iw_mode != IW_MODE_INFRA &&
641 ieee->reset_port && ieee->reset_port(dev)) {
642 netdev_dbg(ieee->dev, "Port reset failed\n");
643 return -EINVAL;
644 }
645 return ret;
646 }
647 EXPORT_SYMBOL(rtllib_wx_set_encode_ext);
648
rtllib_wx_set_mlme(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)649 int rtllib_wx_set_mlme(struct rtllib_device *ieee,
650 struct iw_request_info *info,
651 union iwreq_data *wrqu, char *extra)
652 {
653 u8 i = 0;
654 bool deauth = false;
655 struct iw_mlme *mlme = (struct iw_mlme *)extra;
656
657 if (ieee->state != RTLLIB_LINKED)
658 return -ENOLINK;
659
660 mutex_lock(&ieee->wx_mutex);
661
662 switch (mlme->cmd) {
663 case IW_MLME_DEAUTH:
664 deauth = true;
665 fallthrough;
666 case IW_MLME_DISASSOC:
667 if (deauth)
668 netdev_info(ieee->dev, "disauth packet !\n");
669 else
670 netdev_info(ieee->dev, "dis associate packet!\n");
671
672 ieee->cannot_notify = true;
673
674 SendDisassociation(ieee, deauth, mlme->reason_code);
675 rtllib_disassociate(ieee);
676
677 ieee->wap_set = 0;
678 for (i = 0; i < 6; i++)
679 ieee->current_network.bssid[i] = 0x55;
680
681 ieee->ssid_set = 0;
682 ieee->current_network.ssid[0] = '\0';
683 ieee->current_network.ssid_len = 0;
684 break;
685 default:
686 mutex_unlock(&ieee->wx_mutex);
687 return -EOPNOTSUPP;
688 }
689
690 mutex_unlock(&ieee->wx_mutex);
691
692 return 0;
693 }
694 EXPORT_SYMBOL(rtllib_wx_set_mlme);
695
rtllib_wx_set_auth(struct rtllib_device * ieee,struct iw_request_info * info,struct iw_param * data,char * extra)696 int rtllib_wx_set_auth(struct rtllib_device *ieee,
697 struct iw_request_info *info,
698 struct iw_param *data, char *extra)
699 {
700 switch (data->flags & IW_AUTH_INDEX) {
701 case IW_AUTH_WPA_VERSION:
702 break;
703 case IW_AUTH_CIPHER_PAIRWISE:
704 case IW_AUTH_CIPHER_GROUP:
705 case IW_AUTH_KEY_MGMT:
706 /* Host AP driver does not use these parameters and allows
707 * wpa_supplicant to control them internally.
708 */
709 break;
710 case IW_AUTH_TKIP_COUNTERMEASURES:
711 ieee->tkip_countermeasures = data->value;
712 break;
713 case IW_AUTH_DROP_UNENCRYPTED:
714 ieee->drop_unencrypted = data->value;
715 break;
716
717 case IW_AUTH_80211_AUTH_ALG:
718 if (data->value & IW_AUTH_ALG_SHARED_KEY) {
719 ieee->open_wep = 0;
720 ieee->auth_mode = 1;
721 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) {
722 ieee->open_wep = 1;
723 ieee->auth_mode = 0;
724 } else if (data->value & IW_AUTH_ALG_LEAP) {
725 ieee->open_wep = 1;
726 ieee->auth_mode = 2;
727 } else {
728 return -EINVAL;
729 }
730 break;
731
732 case IW_AUTH_WPA_ENABLED:
733 ieee->wpa_enabled = (data->value) ? 1 : 0;
734 break;
735
736 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
737 ieee->ieee802_1x = data->value;
738 break;
739 case IW_AUTH_PRIVACY_INVOKED:
740 ieee->privacy_invoked = data->value;
741 break;
742 default:
743 return -EOPNOTSUPP;
744 }
745 return 0;
746 }
747 EXPORT_SYMBOL(rtllib_wx_set_auth);
748
rtllib_wx_set_gen_ie(struct rtllib_device * ieee,u8 * ie,size_t len)749 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
750 {
751 u8 *buf;
752 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
753
754 if (len > MAX_WPA_IE_LEN || (len && !ie))
755 return -EINVAL;
756
757 if (len) {
758 eid = ie[0];
759 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], wps_oui, 4))) {
760 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN);
761 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL);
762 if (!buf)
763 return -ENOMEM;
764 ieee->wps_ie = buf;
765 return 0;
766 }
767 }
768 ieee->wps_ie_len = 0;
769 kfree(ieee->wps_ie);
770 ieee->wps_ie = NULL;
771 if (len) {
772 if (len != ie[1] + 2)
773 return -EINVAL;
774 buf = kmemdup(ie, len, GFP_KERNEL);
775 if (!buf)
776 return -ENOMEM;
777 kfree(ieee->wpa_ie);
778 ieee->wpa_ie = buf;
779 ieee->wpa_ie_len = len;
780 } else {
781 kfree(ieee->wpa_ie);
782 ieee->wpa_ie = NULL;
783 ieee->wpa_ie_len = 0;
784 }
785 return 0;
786 }
787 EXPORT_SYMBOL(rtllib_wx_set_gen_ie);
788