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"
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[6];
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(info, start, stop, &iwe, IW_EV_ADDR_LEN);
45 /* Remaining entries will be displayed in the order we provide them */
46
47 /* Add the ESSID */
48 iwe.cmd = SIOCGIWESSID;
49 iwe.u.data.flags = 1;
50 if (network->ssid_len > 0) {
51 iwe.u.data.length = min_t(u8, network->ssid_len, 32);
52 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
53 } else if (network->hidden_ssid_len == 0) {
54 iwe.u.data.length = sizeof("<hidden>");
55 start = iwe_stream_add_point(info, start, stop, &iwe, "<hidden>");
56 } else {
57 iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32);
58 start = iwe_stream_add_point(info, start, stop, &iwe, network->hidden_ssid);
59 }
60 /* Add the protocol name */
61 iwe.cmd = SIOCGIWNAME;
62 for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) {
63 if (network->mode & BIT(i)) {
64 strcpy(pname, rtllib_modes[i]);
65 pname += strlen(rtllib_modes[i]);
66 }
67 }
68 *pname = '\0';
69 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
70 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_CHAR_LEN);
71 /* Add mode */
72 iwe.cmd = SIOCGIWMODE;
73 if (network->capability &
74 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
75 if (network->capability & WLAN_CAPABILITY_ESS)
76 iwe.u.mode = IW_MODE_MASTER;
77 else
78 iwe.u.mode = IW_MODE_ADHOC;
79 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_UINT_LEN);
80 }
81
82 /* Add frequency/channel */
83 iwe.cmd = SIOCGIWFREQ;
84 iwe.u.freq.m = network->channel;
85 iwe.u.freq.e = 0;
86 iwe.u.freq.i = 0;
87 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_FREQ_LEN);
88
89 /* Add encryption capability */
90 iwe.cmd = SIOCGIWENCODE;
91 if (network->capability & WLAN_CAPABILITY_PRIVACY)
92 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
93 else
94 iwe.u.data.flags = IW_ENCODE_DISABLED;
95 iwe.u.data.length = 0;
96 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
97 /* Add basic and extended rates */
98 max_rate = 0;
99 p = custom;
100 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
101 for (i = 0, j = 0; i < network->rates_len;) {
102 if (j < network->rates_ex_len &&
103 ((network->rates_ex[j] & 0x7F) <
104 (network->rates[i] & 0x7F)))
105 rate = network->rates_ex[j++] & 0x7F;
106 else
107 rate = network->rates[i++] & 0x7F;
108 if (rate > max_rate)
109 max_rate = rate;
110 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
111 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
112 }
113 for (; j < network->rates_ex_len; j++) {
114 rate = network->rates_ex[j] & 0x7F;
115 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
116 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
117 if (rate > max_rate)
118 max_rate = rate;
119 }
120
121 if (network->mode >= WIRELESS_MODE_N_24G) {
122 struct ht_capab_ele *ht_cap = NULL;
123 bool is40M = false, isShortGI = false;
124 u8 max_mcs = 0;
125
126 if (!memcmp(network->bssht.bd_ht_cap_buf, EWC11NHTCap, 4))
127 ht_cap = (struct ht_capab_ele *)
128 &network->bssht.bd_ht_cap_buf[4];
129 else
130 ht_cap = (struct ht_capab_ele *)
131 &network->bssht.bd_ht_cap_buf[0];
132 is40M = (ht_cap->chl_width) ? 1 : 0;
133 isShortGI = (ht_cap->chl_width) ?
134 ((ht_cap->short_gi_40mhz) ? 1 : 0) :
135 ((ht_cap->short_gi_20mhz) ? 1 : 0);
136
137 max_mcs = ht_get_highest_mcs_rate(ieee, ht_cap->MCS,
138 MCS_FILTER_ALL);
139 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f];
140 if (rate > max_rate)
141 max_rate = rate;
142 }
143 iwe.cmd = SIOCGIWRATE;
144 iwe.u.bitrate.disabled = 0;
145 iwe.u.bitrate.fixed = 0;
146 iwe.u.bitrate.value = max_rate * 500000;
147 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_PARAM_LEN);
148 iwe.cmd = IWEVCUSTOM;
149 iwe.u.data.length = p - custom;
150 if (iwe.u.data.length)
151 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
152 /* Add quality statistics */
153 /* TODO: Fix these values... */
154 iwe.cmd = IWEVQUAL;
155 iwe.u.qual.qual = network->stats.signal;
156 iwe.u.qual.level = network->stats.rssi;
157 iwe.u.qual.noise = network->stats.noise;
158 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK;
159 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI))
160 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
161 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE))
162 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
163 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL))
164 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
165 iwe.u.qual.updated = 7;
166 start = iwe_stream_add_event(info, start, stop, &iwe, IW_EV_QUAL_LEN);
167
168 iwe.cmd = IWEVCUSTOM;
169 p = custom;
170 iwe.u.data.length = p - custom;
171 if (iwe.u.data.length)
172 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
173
174 memset(&iwe, 0, sizeof(iwe));
175 if (network->wpa_ie_len) {
176 char buf[MAX_WPA_IE_LEN];
177
178 memcpy(buf, network->wpa_ie, network->wpa_ie_len);
179 iwe.cmd = IWEVGENIE;
180 iwe.u.data.length = network->wpa_ie_len;
181 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
182 }
183 memset(&iwe, 0, sizeof(iwe));
184 if (network->rsn_ie_len) {
185 char buf[MAX_WPA_IE_LEN];
186
187 memcpy(buf, network->rsn_ie, network->rsn_ie_len);
188 iwe.cmd = IWEVGENIE;
189 iwe.u.data.length = network->rsn_ie_len;
190 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
191 }
192
193 /* add info for WZC */
194 memset(&iwe, 0, sizeof(iwe));
195 if (network->wzc_ie_len) {
196 char buf[MAX_WZC_IE_LEN];
197
198 memcpy(buf, network->wzc_ie, network->wzc_ie_len);
199 iwe.cmd = IWEVGENIE;
200 iwe.u.data.length = network->wzc_ie_len;
201 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
202 }
203
204 /* Add EXTRA: Age to display seconds since last beacon/probe response
205 * for given network.
206 */
207 iwe.cmd = IWEVCUSTOM;
208 p = custom;
209 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
210 " Last beacon: %lums ago",
211 (100 * (jiffies - network->last_scanned)) / HZ);
212 iwe.u.data.length = p - custom;
213 if (iwe.u.data.length)
214 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
215
216 return start;
217 }
218
rtllib_wx_get_scan(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)219 int rtllib_wx_get_scan(struct rtllib_device *ieee,
220 struct iw_request_info *info,
221 union iwreq_data *wrqu, char *extra)
222 {
223 struct rtllib_network *network;
224 unsigned long flags;
225
226 char *ev = extra;
227 char *stop = ev + wrqu->data.length;
228 int i = 0;
229 int err = 0;
230
231 netdev_dbg(ieee->dev, "Getting scan\n");
232 mutex_lock(&ieee->wx_mutex);
233 spin_lock_irqsave(&ieee->lock, flags);
234
235 list_for_each_entry(network, &ieee->network_list, list) {
236 i++;
237 if ((stop - ev) < 200) {
238 err = -E2BIG;
239 break;
240 }
241 if (ieee->scan_age == 0 ||
242 time_after(network->last_scanned + ieee->scan_age, jiffies))
243 ev = rtl819x_translate_scan(ieee, ev, stop, network,
244 info);
245 else
246 netdev_dbg(ieee->dev,
247 "Network '%s ( %pM)' hidden due to age (%lums).\n",
248 escape_essid(network->ssid,
249 network->ssid_len),
250 network->bssid,
251 (100 * (jiffies - network->last_scanned)) /
252 HZ);
253 }
254
255 spin_unlock_irqrestore(&ieee->lock, flags);
256 mutex_unlock(&ieee->wx_mutex);
257 wrqu->data.length = ev - extra;
258 wrqu->data.flags = 0;
259
260 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i);
261
262 return err;
263 }
264 EXPORT_SYMBOL(rtllib_wx_get_scan);
265
rtllib_wx_set_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)266 int rtllib_wx_set_encode(struct rtllib_device *ieee,
267 struct iw_request_info *info,
268 union iwreq_data *wrqu, char *keybuf)
269 {
270 struct iw_point *erq = &wrqu->encoding;
271 struct net_device *dev = ieee->dev;
272 struct rtllib_security sec = {
273 .flags = 0
274 };
275 int i, key, key_provided, len;
276 struct lib80211_crypt_data **crypt;
277
278 key = erq->flags & IW_ENCODE_INDEX;
279 if (key) {
280 if (key > NUM_WEP_KEYS)
281 return -EINVAL;
282 key--;
283 key_provided = 1;
284 } else {
285 key_provided = 0;
286 key = ieee->crypt_info.tx_keyidx;
287 }
288
289 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ?
290 "provided" : "default");
291 crypt = &ieee->crypt_info.crypt[key];
292 if (erq->flags & IW_ENCODE_DISABLED) {
293 if (key_provided && *crypt) {
294 netdev_dbg(ieee->dev,
295 "Disabling encryption on key %d.\n", key);
296 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
297 } else {
298 netdev_dbg(ieee->dev, "Disabling encryption.\n");
299 }
300
301 /* Check all the keys to see if any are still configured,
302 * and if no key index was provided, de-init them all
303 */
304 for (i = 0; i < NUM_WEP_KEYS; i++) {
305 if (ieee->crypt_info.crypt[i]) {
306 if (key_provided)
307 break;
308 lib80211_crypt_delayed_deinit(&ieee->crypt_info,
309 &ieee->crypt_info.crypt[i]);
310 }
311 }
312
313 if (i == NUM_WEP_KEYS) {
314 sec.enabled = 0;
315 sec.level = SEC_LEVEL_0;
316 sec.flags |= SEC_ENABLED | SEC_LEVEL;
317 }
318
319 goto done;
320 }
321
322 sec.enabled = 1;
323 sec.flags |= SEC_ENABLED;
324
325 if (*crypt && (*crypt)->ops &&
326 strcmp((*crypt)->ops->name, "R-WEP") != 0) {
327 /* changing to use WEP; deinit previously used algorithm
328 * on this key
329 */
330 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
331 }
332
333 if (!*crypt) {
334 struct lib80211_crypt_data *new_crypt;
335
336 /* take WEP into use */
337 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
338 if (!new_crypt)
339 return -ENOMEM;
340 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
341 if (!new_crypt->ops) {
342 request_module("rtllib_crypt_wep");
343 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
344 }
345
346 if (new_crypt->ops)
347 new_crypt->priv = new_crypt->ops->init(key);
348
349 if (!new_crypt->ops || !new_crypt->priv) {
350 kfree(new_crypt);
351 new_crypt = NULL;
352
353 netdev_warn(dev,
354 "%s: could not initialize WEP: load module rtllib_crypt_wep\n",
355 dev->name);
356 return -EOPNOTSUPP;
357 }
358 *crypt = new_crypt;
359 }
360
361 /* If a new key was provided, set it up */
362 if (erq->length > 0) {
363 len = erq->length <= 5 ? 5 : 13;
364 memcpy(sec.keys[key], keybuf, erq->length);
365 if (len > erq->length)
366 memset(sec.keys[key] + erq->length, 0,
367 len - erq->length);
368 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n",
369 key, escape_essid(sec.keys[key], len), erq->length,
370 len);
371 sec.key_sizes[key] = len;
372 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
373 (*crypt)->priv);
374 sec.flags |= (1 << key);
375 /* This ensures a key will be activated if no key is
376 * explicitly set
377 */
378 if (key == sec.active_key)
379 sec.flags |= SEC_ACTIVE_KEY;
380 ieee->crypt_info.tx_keyidx = key;
381
382 } else {
383 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
384 NULL, (*crypt)->priv);
385 if (len == 0) {
386 /* Set a default key of all 0 */
387 netdev_info(ieee->dev, "Setting key %d to all zero.\n", key);
388
389 memset(sec.keys[key], 0, 13);
390 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
391 (*crypt)->priv);
392 sec.key_sizes[key] = 13;
393 sec.flags |= (1 << key);
394 }
395
396 /* No key data - just set the default TX key index */
397 if (key_provided) {
398 netdev_dbg(ieee->dev,
399 "Setting key %d as default Tx key.\n", key);
400 ieee->crypt_info.tx_keyidx = key;
401 sec.active_key = key;
402 sec.flags |= SEC_ACTIVE_KEY;
403 }
404 }
405 done:
406 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
407 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
408 WLAN_AUTH_SHARED_KEY;
409 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
410 sec.flags |= SEC_AUTH_MODE;
411 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
412 "OPEN" : "SHARED KEY");
413
414 /* For now we just support WEP, so only set that security level...
415 * TODO: When WPA is added this is one place that needs to change
416 */
417 sec.flags |= SEC_LEVEL;
418 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
419 return 0;
420 }
421 EXPORT_SYMBOL(rtllib_wx_set_encode);
422
rtllib_wx_get_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)423 int rtllib_wx_get_encode(struct rtllib_device *ieee,
424 struct iw_request_info *info,
425 union iwreq_data *wrqu, char *keybuf)
426 {
427 struct iw_point *erq = &wrqu->encoding;
428 int len, key;
429 struct lib80211_crypt_data *crypt;
430
431 if (ieee->iw_mode == IW_MODE_MONITOR)
432 return -1;
433
434 key = erq->flags & IW_ENCODE_INDEX;
435 if (key) {
436 if (key > NUM_WEP_KEYS)
437 return -EINVAL;
438 key--;
439 } else {
440 key = ieee->crypt_info.tx_keyidx;
441 }
442 crypt = ieee->crypt_info.crypt[key];
443
444 erq->flags = key + 1;
445
446 if (!crypt || !crypt->ops) {
447 erq->length = 0;
448 erq->flags |= IW_ENCODE_DISABLED;
449 return 0;
450 }
451 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
452
453 erq->length = max(len, 0);
454
455 erq->flags |= IW_ENCODE_ENABLED;
456
457 if (ieee->open_wep)
458 erq->flags |= IW_ENCODE_OPEN;
459 else
460 erq->flags |= IW_ENCODE_RESTRICTED;
461
462 return 0;
463 }
464 EXPORT_SYMBOL(rtllib_wx_get_encode);
465
rtllib_wx_set_encode_ext(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)466 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
467 struct iw_request_info *info,
468 union iwreq_data *wrqu, char *extra)
469 {
470 int ret = 0;
471 struct net_device *dev = ieee->dev;
472 struct iw_point *encoding = &wrqu->encoding;
473 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
474 int i, idx;
475 int group_key = 0;
476 const char *alg, *module;
477 const struct lib80211_crypto_ops *ops;
478 struct lib80211_crypt_data **crypt;
479
480 struct rtllib_security sec = {
481 .flags = 0,
482 };
483 idx = encoding->flags & IW_ENCODE_INDEX;
484 if (idx) {
485 if (idx < 1 || idx > NUM_WEP_KEYS)
486 return -EINVAL;
487 idx--;
488 } else {
489 idx = ieee->crypt_info.tx_keyidx;
490 }
491 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
492 crypt = &ieee->crypt_info.crypt[idx];
493 group_key = 1;
494 } else {
495 /* some Cisco APs use idx>0 for unicast in dynamic WEP */
496 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
497 return -EINVAL;
498 if (ieee->iw_mode == IW_MODE_INFRA)
499 crypt = &ieee->crypt_info.crypt[idx];
500 else
501 return -EINVAL;
502 }
503
504 sec.flags |= SEC_ENABLED;
505 if ((encoding->flags & IW_ENCODE_DISABLED) ||
506 ext->alg == IW_ENCODE_ALG_NONE) {
507 if (*crypt)
508 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
509
510 for (i = 0; i < NUM_WEP_KEYS; i++) {
511 if (ieee->crypt_info.crypt[i])
512 break;
513 }
514 if (i == NUM_WEP_KEYS) {
515 sec.enabled = 0;
516 sec.level = SEC_LEVEL_0;
517 sec.flags |= SEC_LEVEL;
518 }
519 goto done;
520 }
521
522 sec.enabled = 1;
523 switch (ext->alg) {
524 case IW_ENCODE_ALG_WEP:
525 alg = "R-WEP";
526 module = "rtllib_crypt_wep";
527 break;
528 case IW_ENCODE_ALG_TKIP:
529 alg = "R-TKIP";
530 module = "rtllib_crypt_tkip";
531 break;
532 case IW_ENCODE_ALG_CCMP:
533 alg = "R-CCMP";
534 module = "rtllib_crypt_ccmp";
535 break;
536 default:
537 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg);
538 ret = -EINVAL;
539 goto done;
540 }
541 netdev_dbg(dev, "alg name:%s\n", alg);
542
543 ops = lib80211_get_crypto_ops(alg);
544 if (!ops) {
545 char tempbuf[100];
546
547 memset(tempbuf, 0x00, 100);
548 sprintf(tempbuf, "%s", module);
549 request_module("%s", tempbuf);
550 ops = lib80211_get_crypto_ops(alg);
551 }
552 if (!ops) {
553 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg);
554 ret = -EINVAL;
555 goto done;
556 }
557
558 if (!*crypt || (*crypt)->ops != ops) {
559 struct lib80211_crypt_data *new_crypt;
560
561 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
562
563 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
564 if (!new_crypt) {
565 ret = -ENOMEM;
566 goto done;
567 }
568 new_crypt->ops = ops;
569 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
570 new_crypt->priv = new_crypt->ops->init(idx);
571
572 if (!new_crypt->priv) {
573 kfree(new_crypt);
574 ret = -EINVAL;
575 goto done;
576 }
577 *crypt = new_crypt;
578 }
579
580 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
581 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
582 (*crypt)->priv) < 0) {
583 netdev_info(dev, "key setting failed\n");
584 ret = -EINVAL;
585 goto done;
586 }
587 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
588 ieee->crypt_info.tx_keyidx = idx;
589 sec.active_key = idx;
590 sec.flags |= SEC_ACTIVE_KEY;
591 }
592 if (ext->alg != IW_ENCODE_ALG_NONE) {
593 sec.key_sizes[idx] = ext->key_len;
594 sec.flags |= (1 << idx);
595 if (ext->alg == IW_ENCODE_ALG_WEP) {
596 sec.flags |= SEC_LEVEL;
597 sec.level = SEC_LEVEL_1;
598 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
599 sec.flags |= SEC_LEVEL;
600 sec.level = SEC_LEVEL_2;
601 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
602 sec.flags |= SEC_LEVEL;
603 sec.level = SEC_LEVEL_3;
604 }
605 /* Don't set sec level for group keys. */
606 if (group_key)
607 sec.flags &= ~SEC_LEVEL;
608 }
609 done:
610 return ret;
611 }
612 EXPORT_SYMBOL(rtllib_wx_set_encode_ext);
613
rtllib_wx_set_mlme(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)614 int rtllib_wx_set_mlme(struct rtllib_device *ieee,
615 struct iw_request_info *info,
616 union iwreq_data *wrqu, char *extra)
617 {
618 u8 i = 0;
619 bool deauth = false;
620 struct iw_mlme *mlme = (struct iw_mlme *)extra;
621
622 if (ieee->link_state != MAC80211_LINKED)
623 return -ENOLINK;
624
625 mutex_lock(&ieee->wx_mutex);
626
627 switch (mlme->cmd) {
628 case IW_MLME_DEAUTH:
629 deauth = true;
630 fallthrough;
631 case IW_MLME_DISASSOC:
632 if (deauth)
633 netdev_info(ieee->dev, "disauth packet !\n");
634 else
635 netdev_info(ieee->dev, "dis associate packet!\n");
636
637 ieee->cannot_notify = true;
638
639 send_disassociation(ieee, deauth, mlme->reason_code);
640 rtllib_disassociate(ieee);
641
642 ieee->wap_set = 0;
643 for (i = 0; i < 6; i++)
644 ieee->current_network.bssid[i] = 0x55;
645
646 ieee->ssid_set = 0;
647 ieee->current_network.ssid[0] = '\0';
648 ieee->current_network.ssid_len = 0;
649 break;
650 default:
651 mutex_unlock(&ieee->wx_mutex);
652 return -EOPNOTSUPP;
653 }
654
655 mutex_unlock(&ieee->wx_mutex);
656
657 return 0;
658 }
659 EXPORT_SYMBOL(rtllib_wx_set_mlme);
660
rtllib_wx_set_auth(struct rtllib_device * ieee,struct iw_request_info * info,struct iw_param * data,char * extra)661 int rtllib_wx_set_auth(struct rtllib_device *ieee,
662 struct iw_request_info *info,
663 struct iw_param *data, char *extra)
664 {
665 switch (data->flags & IW_AUTH_INDEX) {
666 case IW_AUTH_WPA_VERSION:
667 break;
668 case IW_AUTH_CIPHER_PAIRWISE:
669 case IW_AUTH_CIPHER_GROUP:
670 case IW_AUTH_KEY_MGMT:
671 /* Host AP driver does not use these parameters and allows
672 * wpa_supplicant to control them internally.
673 */
674 break;
675 case IW_AUTH_TKIP_COUNTERMEASURES:
676 ieee->tkip_countermeasures = data->value;
677 break;
678 case IW_AUTH_DROP_UNENCRYPTED:
679 ieee->drop_unencrypted = data->value;
680 break;
681
682 case IW_AUTH_80211_AUTH_ALG:
683 if (data->value & IW_AUTH_ALG_SHARED_KEY) {
684 ieee->open_wep = 0;
685 ieee->auth_mode = 1;
686 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) {
687 ieee->open_wep = 1;
688 ieee->auth_mode = 0;
689 } else if (data->value & IW_AUTH_ALG_LEAP) {
690 ieee->open_wep = 1;
691 ieee->auth_mode = 2;
692 } else {
693 return -EINVAL;
694 }
695 break;
696
697 case IW_AUTH_WPA_ENABLED:
698 ieee->wpa_enabled = (data->value) ? 1 : 0;
699 break;
700
701 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
702 ieee->ieee802_1x = data->value;
703 break;
704 case IW_AUTH_PRIVACY_INVOKED:
705 ieee->privacy_invoked = data->value;
706 break;
707 default:
708 return -EOPNOTSUPP;
709 }
710 return 0;
711 }
712 EXPORT_SYMBOL(rtllib_wx_set_auth);
713
rtllib_wx_set_gen_ie(struct rtllib_device * ieee,u8 * ie,size_t len)714 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
715 {
716 u8 *buf;
717 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
718
719 if (len > MAX_WPA_IE_LEN || (len && !ie))
720 return -EINVAL;
721
722 if (len) {
723 eid = ie[0];
724 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], wps_oui, 4))) {
725 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN);
726 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL);
727 if (!buf)
728 return -ENOMEM;
729 ieee->wps_ie = buf;
730 return 0;
731 }
732 }
733 ieee->wps_ie_len = 0;
734 kfree(ieee->wps_ie);
735 ieee->wps_ie = NULL;
736 if (len) {
737 if (len != ie[1] + 2)
738 return -EINVAL;
739 buf = kmemdup(ie, len, GFP_KERNEL);
740 if (!buf)
741 return -ENOMEM;
742 kfree(ieee->wpa_ie);
743 ieee->wpa_ie = buf;
744 ieee->wpa_ie_len = len;
745 } else {
746 kfree(ieee->wpa_ie);
747 ieee->wpa_ie = NULL;
748 ieee->wpa_ie_len = 0;
749 }
750 return 0;
751 }
752 EXPORT_SYMBOL(rtllib_wx_set_gen_ie);
753