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 struct modes_unit {
21 char *mode_string;
22 int mode_size;
23 };
24 static struct modes_unit rtllib_modes[] = {
25 {"a", 1},
26 {"b", 1},
27 {"g", 1},
28 {"?", 1},
29 {"N-24G", 5},
30 {"N-5G", 4},
31 };
32
33 #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)34 static inline char *rtl819x_translate_scan(struct rtllib_device *ieee,
35 char *start, char *stop,
36 struct rtllib_network *network,
37 struct iw_request_info *info)
38 {
39 char custom[MAX_CUSTOM_LEN];
40 char proto_name[IFNAMSIZ];
41 char *pname = proto_name;
42 char *p;
43 struct iw_event iwe;
44 int i, j;
45 u16 max_rate, rate;
46 static u8 EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
47
48 /* First entry *MUST* be the AP MAC address */
49 iwe.cmd = SIOCGIWAP;
50 iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
51 ether_addr_copy(iwe.u.ap_addr.sa_data, network->bssid);
52 start = iwe_stream_add_event_rsl(info, start, stop,
53 &iwe, IW_EV_ADDR_LEN);
54 /* Remaining entries will be displayed in the order we provide them */
55
56 /* Add the ESSID */
57 iwe.cmd = SIOCGIWESSID;
58 iwe.u.data.flags = 1;
59 if (network->ssid_len > 0) {
60 iwe.u.data.length = min_t(u8, network->ssid_len, 32);
61 start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
62 network->ssid);
63 } else if (network->hidden_ssid_len == 0) {
64 iwe.u.data.length = sizeof("<hidden>");
65 start = iwe_stream_add_point_rsl(info, start, stop,
66 &iwe, "<hidden>");
67 } else {
68 iwe.u.data.length = min_t(u8, network->hidden_ssid_len, 32);
69 start = iwe_stream_add_point_rsl(info, start, stop, &iwe,
70 network->hidden_ssid);
71 }
72 /* Add the protocol name */
73 iwe.cmd = SIOCGIWNAME;
74 for (i = 0; i < ARRAY_SIZE(rtllib_modes); i++) {
75 if (network->mode&(1<<i)) {
76 sprintf(pname, rtllib_modes[i].mode_string,
77 rtllib_modes[i].mode_size);
78 pname += rtllib_modes[i].mode_size;
79 }
80 }
81 *pname = '\0';
82 snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
83 start = iwe_stream_add_event_rsl(info, start, stop,
84 &iwe, IW_EV_CHAR_LEN);
85 /* Add mode */
86 iwe.cmd = SIOCGIWMODE;
87 if (network->capability &
88 (WLAN_CAPABILITY_ESS | WLAN_CAPABILITY_IBSS)) {
89 if (network->capability & WLAN_CAPABILITY_ESS)
90 iwe.u.mode = IW_MODE_MASTER;
91 else
92 iwe.u.mode = IW_MODE_ADHOC;
93 start = iwe_stream_add_event_rsl(info, start, stop,
94 &iwe, IW_EV_UINT_LEN);
95 }
96
97 /* Add frequency/channel */
98 iwe.cmd = SIOCGIWFREQ;
99 iwe.u.freq.m = network->channel;
100 iwe.u.freq.e = 0;
101 iwe.u.freq.i = 0;
102 start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
103 IW_EV_FREQ_LEN);
104
105 /* Add encryption capability */
106 iwe.cmd = SIOCGIWENCODE;
107 if (network->capability & WLAN_CAPABILITY_PRIVACY)
108 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
109 else
110 iwe.u.data.flags = IW_ENCODE_DISABLED;
111 iwe.u.data.length = 0;
112 start = iwe_stream_add_point_rsl(info, start, stop,
113 &iwe, network->ssid);
114 /* Add basic and extended rates */
115 max_rate = 0;
116 p = custom;
117 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
118 for (i = 0, j = 0; i < network->rates_len;) {
119 if (j < network->rates_ex_len &&
120 ((network->rates_ex[j] & 0x7F) <
121 (network->rates[i] & 0x7F)))
122 rate = network->rates_ex[j++] & 0x7F;
123 else
124 rate = network->rates[i++] & 0x7F;
125 if (rate > max_rate)
126 max_rate = rate;
127 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
128 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
129 }
130 for (; j < network->rates_ex_len; j++) {
131 rate = network->rates_ex[j] & 0x7F;
132 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
133 "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
134 if (rate > max_rate)
135 max_rate = rate;
136 }
137
138 if (network->mode >= IEEE_N_24G) {
139 struct ht_capab_ele *ht_cap = NULL;
140 bool is40M = false, isShortGI = false;
141 u8 max_mcs = 0;
142
143 if (!memcmp(network->bssht.bd_ht_cap_buf, EWC11NHTCap, 4))
144 ht_cap = (struct ht_capab_ele *)
145 &network->bssht.bd_ht_cap_buf[4];
146 else
147 ht_cap = (struct ht_capab_ele *)
148 &network->bssht.bd_ht_cap_buf[0];
149 is40M = (ht_cap->ChlWidth) ? 1 : 0;
150 isShortGI = (ht_cap->ChlWidth) ?
151 ((ht_cap->ShortGI40Mhz) ? 1 : 0) :
152 ((ht_cap->ShortGI20Mhz) ? 1 : 0);
153
154 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS,
155 MCS_FILTER_ALL);
156 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs & 0x7f];
157 if (rate > max_rate)
158 max_rate = rate;
159 }
160 iwe.cmd = SIOCGIWRATE;
161 iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
162 iwe.u.bitrate.value = max_rate * 500000;
163 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_PARAM_LEN);
164 iwe.cmd = IWEVCUSTOM;
165 iwe.u.data.length = p - custom;
166 if (iwe.u.data.length)
167 start = iwe_stream_add_point_rsl(info, start, stop,
168 &iwe, custom);
169 /* Add quality statistics */
170 /* TODO: Fix these values... */
171 iwe.cmd = IWEVQUAL;
172 iwe.u.qual.qual = network->stats.signal;
173 iwe.u.qual.level = network->stats.rssi;
174 iwe.u.qual.noise = network->stats.noise;
175 iwe.u.qual.updated = network->stats.mask & RTLLIB_STATMASK_WEMASK;
176 if (!(network->stats.mask & RTLLIB_STATMASK_RSSI))
177 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
178 if (!(network->stats.mask & RTLLIB_STATMASK_NOISE))
179 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
180 if (!(network->stats.mask & RTLLIB_STATMASK_SIGNAL))
181 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
182 iwe.u.qual.updated = 7;
183 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
184
185 iwe.cmd = IWEVCUSTOM;
186 p = custom;
187 iwe.u.data.length = p - custom;
188 if (iwe.u.data.length)
189 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, custom);
190
191 memset(&iwe, 0, sizeof(iwe));
192 if (network->wpa_ie_len) {
193 char buf[MAX_WPA_IE_LEN];
194
195 memcpy(buf, network->wpa_ie, network->wpa_ie_len);
196 iwe.cmd = IWEVGENIE;
197 iwe.u.data.length = network->wpa_ie_len;
198 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
199 }
200 memset(&iwe, 0, sizeof(iwe));
201 if (network->rsn_ie_len) {
202 char buf[MAX_WPA_IE_LEN];
203
204 memcpy(buf, network->rsn_ie, network->rsn_ie_len);
205 iwe.cmd = IWEVGENIE;
206 iwe.u.data.length = network->rsn_ie_len;
207 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
208 }
209
210 /* add info for WZC */
211 memset(&iwe, 0, sizeof(iwe));
212 if (network->wzc_ie_len) {
213 char buf[MAX_WZC_IE_LEN];
214
215 memcpy(buf, network->wzc_ie, network->wzc_ie_len);
216 iwe.cmd = IWEVGENIE;
217 iwe.u.data.length = network->wzc_ie_len;
218 start = iwe_stream_add_point_rsl(info, start, stop, &iwe, buf);
219 }
220
221 /* Add EXTRA: Age to display seconds since last beacon/probe response
222 * for given network.
223 */
224 iwe.cmd = IWEVCUSTOM;
225 p = custom;
226 p += scnprintf(p, MAX_CUSTOM_LEN - (p - custom),
227 " Last beacon: %lums ago",
228 (jiffies - network->last_scanned) / (HZ / 100));
229 iwe.u.data.length = p - custom;
230 if (iwe.u.data.length)
231 start = iwe_stream_add_point_rsl(info, start, stop,
232 &iwe, custom);
233
234 return start;
235 }
236
rtllib_wx_get_scan(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)237 int rtllib_wx_get_scan(struct rtllib_device *ieee,
238 struct iw_request_info *info,
239 union iwreq_data *wrqu, char *extra)
240 {
241 struct rtllib_network *network;
242 unsigned long flags;
243
244 char *ev = extra;
245 char *stop = ev + wrqu->data.length;
246 int i = 0;
247 int err = 0;
248
249 netdev_dbg(ieee->dev, "Getting scan\n");
250 mutex_lock(&ieee->wx_mutex);
251 spin_lock_irqsave(&ieee->lock, flags);
252
253 list_for_each_entry(network, &ieee->network_list, list) {
254 i++;
255 if ((stop - ev) < 200) {
256 err = -E2BIG;
257 break;
258 }
259 if (ieee->scan_age == 0 ||
260 time_after(network->last_scanned + ieee->scan_age, jiffies))
261 ev = rtl819x_translate_scan(ieee, ev, stop, network,
262 info);
263 else
264 netdev_dbg(ieee->dev,
265 "Network '%s ( %pM)' hidden due to age (%lums).\n",
266 escape_essid(network->ssid,
267 network->ssid_len),
268 network->bssid,
269 (jiffies - network->last_scanned) /
270 (HZ / 100));
271 }
272
273 spin_unlock_irqrestore(&ieee->lock, flags);
274 mutex_unlock(&ieee->wx_mutex);
275 wrqu->data.length = ev - extra;
276 wrqu->data.flags = 0;
277
278 netdev_dbg(ieee->dev, "%s(): %d networks returned.\n", __func__, i);
279
280 return err;
281 }
282 EXPORT_SYMBOL(rtllib_wx_get_scan);
283
rtllib_wx_set_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)284 int rtllib_wx_set_encode(struct rtllib_device *ieee,
285 struct iw_request_info *info,
286 union iwreq_data *wrqu, char *keybuf)
287 {
288 struct iw_point *erq = &(wrqu->encoding);
289 struct net_device *dev = ieee->dev;
290 struct rtllib_security sec = {
291 .flags = 0
292 };
293 int i, key, key_provided, len;
294 struct lib80211_crypt_data **crypt;
295
296 key = erq->flags & IW_ENCODE_INDEX;
297 if (key) {
298 if (key > NUM_WEP_KEYS)
299 return -EINVAL;
300 key--;
301 key_provided = 1;
302 } else {
303 key_provided = 0;
304 key = ieee->crypt_info.tx_keyidx;
305 }
306
307 netdev_dbg(ieee->dev, "Key: %d [%s]\n", key, key_provided ?
308 "provided" : "default");
309 crypt = &ieee->crypt_info.crypt[key];
310 if (erq->flags & IW_ENCODE_DISABLED) {
311 if (key_provided && *crypt) {
312 netdev_dbg(ieee->dev,
313 "Disabling encryption on key %d.\n", key);
314 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
315 } else
316 netdev_dbg(ieee->dev, "Disabling encryption.\n");
317
318 /* Check all the keys to see if any are still configured,
319 * and if no key index was provided, de-init them all
320 */
321 for (i = 0; i < NUM_WEP_KEYS; i++) {
322 if (ieee->crypt_info.crypt[i]) {
323 if (key_provided)
324 break;
325 lib80211_crypt_delayed_deinit(&ieee->crypt_info,
326 &ieee->crypt_info.crypt[i]);
327 }
328 }
329
330 if (i == NUM_WEP_KEYS) {
331 sec.enabled = 0;
332 sec.level = SEC_LEVEL_0;
333 sec.flags |= SEC_ENABLED | SEC_LEVEL;
334 }
335
336 goto done;
337 }
338
339 sec.enabled = 1;
340 sec.flags |= SEC_ENABLED;
341
342 if (*crypt && (*crypt)->ops &&
343 strcmp((*crypt)->ops->name, "R-WEP") != 0) {
344 /* changing to use WEP; deinit previously used algorithm
345 * on this key
346 */
347 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
348 }
349
350 if (!*crypt) {
351 struct lib80211_crypt_data *new_crypt;
352
353 /* take WEP into use */
354 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
355 if (!new_crypt)
356 return -ENOMEM;
357 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
358 if (!new_crypt->ops) {
359 request_module("rtllib_crypt_wep");
360 new_crypt->ops = lib80211_get_crypto_ops("R-WEP");
361 }
362
363 if (new_crypt->ops)
364 new_crypt->priv = new_crypt->ops->init(key);
365
366 if (!new_crypt->ops || !new_crypt->priv) {
367 kfree(new_crypt);
368 new_crypt = NULL;
369
370 netdev_warn(dev,
371 "%s: could not initialize WEP: load module rtllib_crypt_wep\n",
372 dev->name);
373 return -EOPNOTSUPP;
374 }
375 *crypt = new_crypt;
376 }
377
378 /* If a new key was provided, set it up */
379 if (erq->length > 0) {
380 len = erq->length <= 5 ? 5 : 13;
381 memcpy(sec.keys[key], keybuf, erq->length);
382 if (len > erq->length)
383 memset(sec.keys[key] + erq->length, 0,
384 len - erq->length);
385 netdev_dbg(ieee->dev, "Setting key %d to '%s' (%d:%d bytes)\n",
386 key, escape_essid(sec.keys[key], len), erq->length,
387 len);
388 sec.key_sizes[key] = len;
389 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
390 (*crypt)->priv);
391 sec.flags |= (1 << key);
392 /* This ensures a key will be activated if no key is
393 * explicitly set
394 */
395 if (key == sec.active_key)
396 sec.flags |= SEC_ACTIVE_KEY;
397 ieee->crypt_info.tx_keyidx = key;
398
399 } else {
400 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
401 NULL, (*crypt)->priv);
402 if (len == 0) {
403 /* Set a default key of all 0 */
404 netdev_info(ieee->dev, "Setting key %d to all zero.\n", key);
405
406 memset(sec.keys[key], 0, 13);
407 (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
408 (*crypt)->priv);
409 sec.key_sizes[key] = 13;
410 sec.flags |= (1 << key);
411 }
412
413 /* No key data - just set the default TX key index */
414 if (key_provided) {
415 netdev_dbg(ieee->dev,
416 "Setting key %d as default Tx key.\n", key);
417 ieee->crypt_info.tx_keyidx = key;
418 sec.active_key = key;
419 sec.flags |= SEC_ACTIVE_KEY;
420 }
421 }
422 done:
423 ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
424 ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN :
425 WLAN_AUTH_SHARED_KEY;
426 sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
427 sec.flags |= SEC_AUTH_MODE;
428 netdev_dbg(ieee->dev, "Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
429 "OPEN" : "SHARED KEY");
430
431 /* For now we just support WEP, so only set that security level...
432 * TODO: When WPA is added this is one place that needs to change
433 */
434 sec.flags |= SEC_LEVEL;
435 sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
436
437 if (ieee->set_security)
438 ieee->set_security(dev, &sec);
439
440 /* Do not reset port if card is in Managed mode since resetting will
441 * generate new IEEE 802.11 authentication which may end up in looping
442 * with IEEE 802.1X. If your hardware requires a reset after WEP
443 * configuration (for example... Prism2), implement the reset_port in
444 * the callbacks structures used to initialize the 802.11 stack.
445 */
446 if (ieee->reset_on_keychange &&
447 ieee->iw_mode != IW_MODE_INFRA &&
448 ieee->reset_port && ieee->reset_port(dev)) {
449 netdev_dbg(dev, "%s: reset_port failed\n", dev->name);
450 return -EINVAL;
451 }
452 return 0;
453 }
454 EXPORT_SYMBOL(rtllib_wx_set_encode);
455
rtllib_wx_get_encode(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * keybuf)456 int rtllib_wx_get_encode(struct rtllib_device *ieee,
457 struct iw_request_info *info,
458 union iwreq_data *wrqu, char *keybuf)
459 {
460 struct iw_point *erq = &(wrqu->encoding);
461 int len, key;
462 struct lib80211_crypt_data *crypt;
463
464 if (ieee->iw_mode == IW_MODE_MONITOR)
465 return -1;
466
467 key = erq->flags & IW_ENCODE_INDEX;
468 if (key) {
469 if (key > NUM_WEP_KEYS)
470 return -EINVAL;
471 key--;
472 } else {
473 key = ieee->crypt_info.tx_keyidx;
474 }
475 crypt = ieee->crypt_info.crypt[key];
476
477 erq->flags = key + 1;
478
479 if (!crypt || !crypt->ops) {
480 erq->length = 0;
481 erq->flags |= IW_ENCODE_DISABLED;
482 return 0;
483 }
484 len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
485
486 erq->length = max(len, 0);
487
488 erq->flags |= IW_ENCODE_ENABLED;
489
490 if (ieee->open_wep)
491 erq->flags |= IW_ENCODE_OPEN;
492 else
493 erq->flags |= IW_ENCODE_RESTRICTED;
494
495 return 0;
496 }
497 EXPORT_SYMBOL(rtllib_wx_get_encode);
498
rtllib_wx_set_encode_ext(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)499 int rtllib_wx_set_encode_ext(struct rtllib_device *ieee,
500 struct iw_request_info *info,
501 union iwreq_data *wrqu, char *extra)
502 {
503 int ret = 0;
504 struct net_device *dev = ieee->dev;
505 struct iw_point *encoding = &wrqu->encoding;
506 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
507 int i, idx;
508 int group_key = 0;
509 const char *alg, *module;
510 struct lib80211_crypto_ops *ops;
511 struct lib80211_crypt_data **crypt;
512
513 struct rtllib_security sec = {
514 .flags = 0,
515 };
516 idx = encoding->flags & IW_ENCODE_INDEX;
517 if (idx) {
518 if (idx < 1 || idx > NUM_WEP_KEYS)
519 return -EINVAL;
520 idx--;
521 } else {
522 idx = ieee->crypt_info.tx_keyidx;
523 }
524 if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
525 crypt = &ieee->crypt_info.crypt[idx];
526 group_key = 1;
527 } else {
528 /* some Cisco APs use idx>0 for unicast in dynamic WEP */
529 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
530 return -EINVAL;
531 if (ieee->iw_mode == IW_MODE_INFRA)
532 crypt = &ieee->crypt_info.crypt[idx];
533 else
534 return -EINVAL;
535 }
536
537 sec.flags |= SEC_ENABLED;
538 if ((encoding->flags & IW_ENCODE_DISABLED) ||
539 ext->alg == IW_ENCODE_ALG_NONE) {
540 if (*crypt)
541 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
542
543 for (i = 0; i < NUM_WEP_KEYS; i++) {
544 if (ieee->crypt_info.crypt[i])
545 break;
546 }
547 if (i == NUM_WEP_KEYS) {
548 sec.enabled = 0;
549 sec.level = SEC_LEVEL_0;
550 sec.flags |= SEC_LEVEL;
551 }
552 goto done;
553 }
554
555 sec.enabled = 1;
556 switch (ext->alg) {
557 case IW_ENCODE_ALG_WEP:
558 alg = "R-WEP";
559 module = "rtllib_crypt_wep";
560 break;
561 case IW_ENCODE_ALG_TKIP:
562 alg = "R-TKIP";
563 module = "rtllib_crypt_tkip";
564 break;
565 case IW_ENCODE_ALG_CCMP:
566 alg = "R-CCMP";
567 module = "rtllib_crypt_ccmp";
568 break;
569 default:
570 netdev_dbg(ieee->dev, "Unknown crypto alg %d\n", ext->alg);
571 ret = -EINVAL;
572 goto done;
573 }
574 netdev_dbg(dev, "alg name:%s\n", alg);
575
576 ops = lib80211_get_crypto_ops(alg);
577 if (!ops) {
578 char tempbuf[100];
579
580 memset(tempbuf, 0x00, 100);
581 sprintf(tempbuf, "%s", module);
582 request_module("%s", tempbuf);
583 ops = lib80211_get_crypto_ops(alg);
584 }
585 if (!ops) {
586 netdev_info(dev, "========>unknown crypto alg %d\n", ext->alg);
587 ret = -EINVAL;
588 goto done;
589 }
590
591 if (!*crypt || (*crypt)->ops != ops) {
592 struct lib80211_crypt_data *new_crypt;
593
594 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
595
596 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
597 if (!new_crypt) {
598 ret = -ENOMEM;
599 goto done;
600 }
601 new_crypt->ops = ops;
602 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
603 new_crypt->priv = new_crypt->ops->init(idx);
604
605 if (!new_crypt->priv) {
606 kfree(new_crypt);
607 ret = -EINVAL;
608 goto done;
609 }
610 *crypt = new_crypt;
611
612 }
613
614 if (ext->key_len > 0 && (*crypt)->ops->set_key &&
615 (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
616 (*crypt)->priv) < 0) {
617 netdev_info(dev, "key setting failed\n");
618 ret = -EINVAL;
619 goto done;
620 }
621 if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
622 ieee->crypt_info.tx_keyidx = idx;
623 sec.active_key = idx;
624 sec.flags |= SEC_ACTIVE_KEY;
625 }
626 if (ext->alg != IW_ENCODE_ALG_NONE) {
627 sec.key_sizes[idx] = ext->key_len;
628 sec.flags |= (1 << idx);
629 if (ext->alg == IW_ENCODE_ALG_WEP) {
630 sec.flags |= SEC_LEVEL;
631 sec.level = SEC_LEVEL_1;
632 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
633 sec.flags |= SEC_LEVEL;
634 sec.level = SEC_LEVEL_2;
635 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
636 sec.flags |= SEC_LEVEL;
637 sec.level = SEC_LEVEL_3;
638 }
639 /* Don't set sec level for group keys. */
640 if (group_key)
641 sec.flags &= ~SEC_LEVEL;
642 }
643 done:
644 if (ieee->set_security)
645 ieee->set_security(ieee->dev, &sec);
646
647 if (ieee->reset_on_keychange &&
648 ieee->iw_mode != IW_MODE_INFRA &&
649 ieee->reset_port && ieee->reset_port(dev)) {
650 netdev_dbg(ieee->dev, "Port reset failed\n");
651 return -EINVAL;
652 }
653 return ret;
654 }
655 EXPORT_SYMBOL(rtllib_wx_set_encode_ext);
656
rtllib_wx_set_mlme(struct rtllib_device * ieee,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)657 int rtllib_wx_set_mlme(struct rtllib_device *ieee,
658 struct iw_request_info *info,
659 union iwreq_data *wrqu, char *extra)
660 {
661 u8 i = 0;
662 bool deauth = false;
663 struct iw_mlme *mlme = (struct iw_mlme *)extra;
664
665 if (ieee->state != RTLLIB_LINKED)
666 return -ENOLINK;
667
668 mutex_lock(&ieee->wx_mutex);
669
670 switch (mlme->cmd) {
671 case IW_MLME_DEAUTH:
672 deauth = true;
673 fallthrough;
674 case IW_MLME_DISASSOC:
675 if (deauth)
676 netdev_info(ieee->dev, "disauth packet !\n");
677 else
678 netdev_info(ieee->dev, "dis associate packet!\n");
679
680 ieee->cannot_notify = true;
681
682 SendDisassociation(ieee, deauth, mlme->reason_code);
683 rtllib_disassociate(ieee);
684
685 ieee->wap_set = 0;
686 for (i = 0; i < 6; i++)
687 ieee->current_network.bssid[i] = 0x55;
688
689 ieee->ssid_set = 0;
690 ieee->current_network.ssid[0] = '\0';
691 ieee->current_network.ssid_len = 0;
692 break;
693 default:
694 mutex_unlock(&ieee->wx_mutex);
695 return -EOPNOTSUPP;
696 }
697
698 mutex_unlock(&ieee->wx_mutex);
699
700 return 0;
701 }
702 EXPORT_SYMBOL(rtllib_wx_set_mlme);
703
rtllib_wx_set_auth(struct rtllib_device * ieee,struct iw_request_info * info,struct iw_param * data,char * extra)704 int rtllib_wx_set_auth(struct rtllib_device *ieee,
705 struct iw_request_info *info,
706 struct iw_param *data, char *extra)
707 {
708 switch (data->flags & IW_AUTH_INDEX) {
709 case IW_AUTH_WPA_VERSION:
710 break;
711 case IW_AUTH_CIPHER_PAIRWISE:
712 case IW_AUTH_CIPHER_GROUP:
713 case IW_AUTH_KEY_MGMT:
714 /* Host AP driver does not use these parameters and allows
715 * wpa_supplicant to control them internally.
716 */
717 break;
718 case IW_AUTH_TKIP_COUNTERMEASURES:
719 ieee->tkip_countermeasures = data->value;
720 break;
721 case IW_AUTH_DROP_UNENCRYPTED:
722 ieee->drop_unencrypted = data->value;
723 break;
724
725 case IW_AUTH_80211_AUTH_ALG:
726 if (data->value & IW_AUTH_ALG_SHARED_KEY) {
727 ieee->open_wep = 0;
728 ieee->auth_mode = 1;
729 } else if (data->value & IW_AUTH_ALG_OPEN_SYSTEM) {
730 ieee->open_wep = 1;
731 ieee->auth_mode = 0;
732 } else if (data->value & IW_AUTH_ALG_LEAP) {
733 ieee->open_wep = 1;
734 ieee->auth_mode = 2;
735 } else
736 return -EINVAL;
737 break;
738
739 case IW_AUTH_WPA_ENABLED:
740 ieee->wpa_enabled = (data->value) ? 1 : 0;
741 break;
742
743 case IW_AUTH_RX_UNENCRYPTED_EAPOL:
744 ieee->ieee802_1x = data->value;
745 break;
746 case IW_AUTH_PRIVACY_INVOKED:
747 ieee->privacy_invoked = data->value;
748 break;
749 default:
750 return -EOPNOTSUPP;
751 }
752 return 0;
753 }
754 EXPORT_SYMBOL(rtllib_wx_set_auth);
755
rtllib_wx_set_gen_ie(struct rtllib_device * ieee,u8 * ie,size_t len)756 int rtllib_wx_set_gen_ie(struct rtllib_device *ieee, u8 *ie, size_t len)
757 {
758 u8 *buf;
759 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
760
761 if (len > MAX_WPA_IE_LEN || (len && !ie))
762 return -EINVAL;
763
764 if (len) {
765 eid = ie[0];
766 if ((eid == MFIE_TYPE_GENERIC) && (!memcmp(&ie[2], wps_oui, 4))) {
767 ieee->wps_ie_len = min_t(size_t, len, MAX_WZC_IE_LEN);
768 buf = kmemdup(ie, ieee->wps_ie_len, GFP_KERNEL);
769 if (!buf)
770 return -ENOMEM;
771 ieee->wps_ie = buf;
772 return 0;
773 }
774 }
775 ieee->wps_ie_len = 0;
776 kfree(ieee->wps_ie);
777 ieee->wps_ie = NULL;
778 if (len) {
779 if (len != ie[1]+2)
780 return -EINVAL;
781 buf = kmemdup(ie, len, GFP_KERNEL);
782 if (!buf)
783 return -ENOMEM;
784 kfree(ieee->wpa_ie);
785 ieee->wpa_ie = buf;
786 ieee->wpa_ie_len = len;
787 } else {
788 kfree(ieee->wpa_ie);
789 ieee->wpa_ie = NULL;
790 ieee->wpa_ie_len = 0;
791 }
792 return 0;
793 }
794 EXPORT_SYMBOL(rtllib_wx_set_gen_ie);
795