1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3  *
4  * This file contains wireless extension handlers.
5  *
6  * This is part of rtl8180 OpenSource driver.
7  * Copyright (C) Andrea Merello 2004-2005  <andrea.merello@gmail.com>
8  *
9  * Parts of this driver are based on the GPL part
10  * of the official realtek driver.
11  *
12  * Parts of this driver are based on the rtl8180 driver skeleton
13  * from Patric Schenke & Andres Salomon.
14  *
15  * Parts of this driver are based on the Intel Pro Wireless 2100 GPL driver.
16  *
17  * We want to thank the Authors of those projects and the Ndiswrapper
18  * project Authors.
19  *
20  *****************************************************************************/
21 
22 #include <linux/string.h>
23 #include "r8192U.h"
24 #include "r8192U_hw.h"
25 
26 #include "ieee80211/dot11d.h"
27 #include "r8192U_wx.h"
28 
29 #define RATE_COUNT 12
30 static const u32 rtl8180_rates[] = {1000000, 2000000, 5500000, 11000000,
31 	6000000, 9000000, 12000000, 18000000, 24000000, 36000000, 48000000, 54000000};
32 
33 #ifndef ENETDOWN
34 #define ENETDOWN 1
35 #endif
36 
37 static int r8192_wx_get_freq(struct net_device *dev,
38 			     struct iw_request_info *a,
39 			     union iwreq_data *wrqu, char *b)
40 {
41 	struct r8192_priv *priv = ieee80211_priv(dev);
42 
43 	return ieee80211_wx_get_freq(priv->ieee80211, a, wrqu, b);
44 }
45 
46 static int r8192_wx_get_mode(struct net_device *dev, struct iw_request_info *a,
47 			     union iwreq_data *wrqu, char *b)
48 {
49 	struct r8192_priv *priv = ieee80211_priv(dev);
50 
51 	return ieee80211_wx_get_mode(priv->ieee80211, a, wrqu, b);
52 }
53 
54 static int r8192_wx_get_rate(struct net_device *dev,
55 			     struct iw_request_info *info,
56 			     union iwreq_data *wrqu, char *extra)
57 {
58 	struct r8192_priv *priv = ieee80211_priv(dev);
59 
60 	return ieee80211_wx_get_rate(priv->ieee80211, info, wrqu, extra);
61 }
62 
63 static int r8192_wx_set_rate(struct net_device *dev,
64 			     struct iw_request_info *info,
65 			     union iwreq_data *wrqu, char *extra)
66 {
67 	int ret;
68 	struct r8192_priv *priv = ieee80211_priv(dev);
69 
70 	mutex_lock(&priv->wx_mutex);
71 
72 	ret = ieee80211_wx_set_rate(priv->ieee80211, info, wrqu, extra);
73 
74 	mutex_unlock(&priv->wx_mutex);
75 
76 	return ret;
77 }
78 
79 static int r8192_wx_set_rts(struct net_device *dev,
80 			     struct iw_request_info *info,
81 			     union iwreq_data *wrqu, char *extra)
82 {
83 	int ret;
84 	struct r8192_priv *priv = ieee80211_priv(dev);
85 
86 	mutex_lock(&priv->wx_mutex);
87 
88 	ret = ieee80211_wx_set_rts(priv->ieee80211, info, wrqu, extra);
89 
90 	mutex_unlock(&priv->wx_mutex);
91 
92 	return ret;
93 }
94 
95 static int r8192_wx_get_rts(struct net_device *dev,
96 			     struct iw_request_info *info,
97 			     union iwreq_data *wrqu, char *extra)
98 {
99 	struct r8192_priv *priv = ieee80211_priv(dev);
100 
101 	return ieee80211_wx_get_rts(priv->ieee80211, info, wrqu, extra);
102 }
103 
104 static int r8192_wx_set_power(struct net_device *dev,
105 			     struct iw_request_info *info,
106 			     union iwreq_data *wrqu, char *extra)
107 {
108 	int ret;
109 	struct r8192_priv *priv = ieee80211_priv(dev);
110 
111 	mutex_lock(&priv->wx_mutex);
112 
113 	ret = ieee80211_wx_set_power(priv->ieee80211, info, wrqu, extra);
114 
115 	mutex_unlock(&priv->wx_mutex);
116 
117 	return ret;
118 }
119 
120 static int r8192_wx_get_power(struct net_device *dev,
121 			     struct iw_request_info *info,
122 			     union iwreq_data *wrqu, char *extra)
123 {
124 	struct r8192_priv *priv = ieee80211_priv(dev);
125 
126 	return ieee80211_wx_get_power(priv->ieee80211, info, wrqu, extra);
127 }
128 
129 static int r8192_wx_force_reset(struct net_device *dev,
130 		struct iw_request_info *info,
131 		union iwreq_data *wrqu, char *extra)
132 {
133 	struct r8192_priv *priv = ieee80211_priv(dev);
134 
135 	mutex_lock(&priv->wx_mutex);
136 
137 	netdev_dbg(dev, "%s(): force reset ! extra is %d\n", __func__, *extra);
138 	priv->force_reset = *extra;
139 	mutex_unlock(&priv->wx_mutex);
140 	return 0;
141 }
142 
143 static int r8192_wx_set_rawtx(struct net_device *dev,
144 			       struct iw_request_info *info,
145 			       union iwreq_data *wrqu, char *extra)
146 {
147 	struct r8192_priv *priv = ieee80211_priv(dev);
148 	int ret;
149 
150 	mutex_lock(&priv->wx_mutex);
151 
152 	ret = ieee80211_wx_set_rawtx(priv->ieee80211, info, wrqu, extra);
153 
154 	mutex_unlock(&priv->wx_mutex);
155 
156 	return ret;
157 }
158 
159 static int r8192_wx_set_crcmon(struct net_device *dev,
160 			       struct iw_request_info *info,
161 			       union iwreq_data *wrqu, char *extra)
162 {
163 	struct r8192_priv *priv = ieee80211_priv(dev);
164 	int *parms = (int *)extra;
165 	int enable = (parms[0] > 0);
166 
167 	mutex_lock(&priv->wx_mutex);
168 
169 	if (enable)
170 		priv->crcmon = 1;
171 	else
172 		priv->crcmon = 0;
173 
174 	DMESG("bad CRC in monitor mode are %s",
175 	      priv->crcmon ? "accepted" : "rejected");
176 
177 	mutex_unlock(&priv->wx_mutex);
178 
179 	return 0;
180 }
181 
182 static int r8192_wx_set_mode(struct net_device *dev, struct iw_request_info *a,
183 			     union iwreq_data *wrqu, char *b)
184 {
185 	struct r8192_priv *priv = ieee80211_priv(dev);
186 	int ret;
187 
188 	mutex_lock(&priv->wx_mutex);
189 
190 	ret = ieee80211_wx_set_mode(priv->ieee80211, a, wrqu, b);
191 
192 	rtl8192_set_rxconf(dev);
193 
194 	mutex_unlock(&priv->wx_mutex);
195 	return ret;
196 }
197 
198 struct  iw_range_with_scan_capa {
199 	/* Informative stuff (to choose between different interface) */
200 	__u32           throughput;     /* To give an idea... */
201 	/* In theory this value should be the maximum benchmarked
202 	 * TCP/IP throughput, because with most of these devices the
203 	 * bit rate is meaningless (overhead an co) to estimate how
204 	 * fast the connection will go and pick the fastest one.
205 	 * I suggest people to play with Netperf or any benchmark...
206 	 */
207 
208 	/* NWID (or domain id) */
209 	__u32           min_nwid;       /* Minimal NWID we are able to set */
210 	__u32           max_nwid;       /* Maximal NWID we are able to set */
211 
212 	/* Old Frequency (backward compat - moved lower ) */
213 	__u16           old_num_channels;
214 	__u8            old_num_frequency;
215 
216 	/* Scan capabilities */
217 	__u8            scan_capa;
218 };
219 
220 static int rtl8180_wx_get_range(struct net_device *dev,
221 				struct iw_request_info *info,
222 				union iwreq_data *wrqu, char *extra)
223 {
224 	struct iw_range *range = (struct iw_range *)extra;
225 	struct iw_range_with_scan_capa *tmp = (struct iw_range_with_scan_capa *)range;
226 	struct r8192_priv *priv = ieee80211_priv(dev);
227 	u16 val;
228 	int i;
229 
230 	wrqu->data.length = sizeof(*range);
231 	memset(range, 0, sizeof(*range));
232 
233 	/* Let's try to keep this struct in the same order as in
234 	 * linux/include/wireless.h
235 	 */
236 
237 	/* TODO: See what values we can set, and remove the ones we can't
238 	 * set, or fill them with some default data.
239 	 */
240 
241 	/* ~5 Mb/s real (802.11b) */
242 	range->throughput = 5 * 1000 * 1000;
243 
244 	/* TODO: Not used in 802.11b? */
245 	/* range->min_nwid; */	/* Minimal NWID we are able to set */
246 	/* TODO: Not used in 802.11b? */
247 	/* range->max_nwid; */	/* Maximal NWID we are able to set */
248 
249 	/* Old Frequency (backward compat - moved lower ) */
250 	/* range->old_num_channels; */
251 	/* range->old_num_frequency; */
252 	/* range->old_freq[6]; */ /* Filler to keep "version" at the same offset */
253 	if (priv->rf_set_sens)
254 		range->sensitivity = priv->max_sens;	/* signal level threshold range */
255 
256 	range->max_qual.qual = 100;
257 	/* TODO: Find real max RSSI and stick here */
258 	range->max_qual.level = 0;
259 	range->max_qual.noise = 0x100 - 98;
260 	range->max_qual.updated = 7; /* Updated all three */
261 
262 	range->avg_qual.qual = 92; /* > 8% missed beacons is 'bad' */
263 	/* TODO: Find real 'good' to 'bad' threshold value for RSSI */
264 	range->avg_qual.level = 0x100 - 78;
265 	range->avg_qual.noise = 0;
266 	range->avg_qual.updated = 7; /* Updated all three */
267 
268 	range->num_bitrates = RATE_COUNT;
269 
270 	for (i = 0; i < RATE_COUNT && i < IW_MAX_BITRATES; i++)
271 		range->bitrate[i] = rtl8180_rates[i];
272 
273 	range->min_frag = MIN_FRAG_THRESHOLD;
274 	range->max_frag = MAX_FRAG_THRESHOLD;
275 
276 	range->min_pmp = 0;
277 	range->max_pmp = 5000000;
278 	range->min_pmt = 0;
279 	range->max_pmt = 65535*1000;
280 	range->pmp_flags = IW_POWER_PERIOD;
281 	range->pmt_flags = IW_POWER_TIMEOUT;
282 	range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
283 
284 	range->we_version_compiled = WIRELESS_EXT;
285 	range->we_version_source = 16;
286 
287 	/* range->retry_capa; */	/* What retry options are supported */
288 	/* range->retry_flags; */	/* How to decode max/min retry limit */
289 	/* range->r_time_flags; */	/* How to decode max/min retry life */
290 	/* range->min_retry; */		/* Minimal number of retries */
291 	/* range->max_retry; */		/* Maximal number of retries */
292 	/* range->min_r_time; */	/* Minimal retry lifetime */
293 	/* range->max_r_time; */	/* Maximal retry lifetime */
294 
295 	for (i = 0, val = 0; i < 14; i++) {
296 		/* Include only legal frequencies for some countries */
297 		if ((GET_DOT11D_INFO(priv->ieee80211)->channel_map)[i+1]) {
298 			range->freq[val].i = i + 1;
299 			range->freq[val].m = ieee80211_wlan_frequencies[i] * 100000;
300 			range->freq[val].e = 1;
301 			val++;
302 		} else {
303 			/* FIXME: do we need to set anything for channels */
304 			/* we don't use ? */
305 		}
306 
307 		if (val == IW_MAX_FREQUENCIES)
308 			break;
309 	}
310 	range->num_frequency = val;
311 	range->num_channels = val;
312 	range->enc_capa = IW_ENC_CAPA_WPA|IW_ENC_CAPA_WPA2|
313 			  IW_ENC_CAPA_CIPHER_TKIP|IW_ENC_CAPA_CIPHER_CCMP;
314 	tmp->scan_capa = 0x01;
315 	return 0;
316 }
317 
318 static int r8192_wx_set_scan(struct net_device *dev, struct iw_request_info *a,
319 			     union iwreq_data *wrqu, char *b)
320 {
321 	struct r8192_priv *priv = ieee80211_priv(dev);
322 	struct ieee80211_device *ieee = priv->ieee80211;
323 	int ret = 0;
324 
325 	if (!priv->up)
326 		return -ENETDOWN;
327 
328 	if (priv->ieee80211->LinkDetectInfo.bBusyTraffic)
329 		return -EAGAIN;
330 	if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
331 		struct iw_scan_req *req = (struct iw_scan_req *)b;
332 
333 		if (req->essid_len) {
334 			ieee->current_network.ssid_len = req->essid_len;
335 			memcpy(ieee->current_network.ssid, req->essid, req->essid_len);
336 		}
337 	}
338 
339 	mutex_lock(&priv->wx_mutex);
340 	if (priv->ieee80211->state != IEEE80211_LINKED) {
341 		priv->ieee80211->scanning = 0;
342 		ieee80211_softmac_scan_syncro(priv->ieee80211);
343 		ret = 0;
344 	} else {
345 		ret = ieee80211_wx_set_scan(priv->ieee80211, a, wrqu, b);
346 	}
347 	mutex_unlock(&priv->wx_mutex);
348 	return ret;
349 }
350 
351 static int r8192_wx_get_scan(struct net_device *dev, struct iw_request_info *a,
352 			     union iwreq_data *wrqu, char *b)
353 {
354 	int ret;
355 	struct r8192_priv *priv = ieee80211_priv(dev);
356 
357 	if (!priv->up)
358 		return -ENETDOWN;
359 
360 	mutex_lock(&priv->wx_mutex);
361 
362 	ret = ieee80211_wx_get_scan(priv->ieee80211, a, wrqu, b);
363 
364 	mutex_unlock(&priv->wx_mutex);
365 
366 	return ret;
367 }
368 
369 static int r8192_wx_set_essid(struct net_device *dev,
370 			      struct iw_request_info *a,
371 			      union iwreq_data *wrqu, char *b)
372 {
373 	struct r8192_priv *priv = ieee80211_priv(dev);
374 	int ret;
375 
376 	mutex_lock(&priv->wx_mutex);
377 
378 	ret = ieee80211_wx_set_essid(priv->ieee80211, a, wrqu, b);
379 
380 	mutex_unlock(&priv->wx_mutex);
381 
382 	return ret;
383 }
384 
385 static int r8192_wx_get_essid(struct net_device *dev,
386 			      struct iw_request_info *a,
387 			      union iwreq_data *wrqu, char *b)
388 {
389 	int ret;
390 	struct r8192_priv *priv = ieee80211_priv(dev);
391 
392 	mutex_lock(&priv->wx_mutex);
393 
394 	ret = ieee80211_wx_get_essid(priv->ieee80211, a, wrqu, b);
395 
396 	mutex_unlock(&priv->wx_mutex);
397 
398 	return ret;
399 }
400 
401 static int r8192_wx_set_freq(struct net_device *dev, struct iw_request_info *a,
402 			     union iwreq_data *wrqu, char *b)
403 {
404 	int ret;
405 	struct r8192_priv *priv = ieee80211_priv(dev);
406 
407 	mutex_lock(&priv->wx_mutex);
408 
409 	ret = ieee80211_wx_set_freq(priv->ieee80211, a, wrqu, b);
410 
411 	mutex_unlock(&priv->wx_mutex);
412 	return ret;
413 }
414 
415 static int r8192_wx_get_name(struct net_device *dev,
416 			     struct iw_request_info *info,
417 			     union iwreq_data *wrqu, char *extra)
418 {
419 	struct r8192_priv *priv = ieee80211_priv(dev);
420 
421 	return ieee80211_wx_get_name(priv->ieee80211, info, wrqu, extra);
422 }
423 
424 static int r8192_wx_set_frag(struct net_device *dev,
425 			     struct iw_request_info *info,
426 			     union iwreq_data *wrqu, char *extra)
427 {
428 	struct r8192_priv *priv = ieee80211_priv(dev);
429 
430 	if (wrqu->frag.disabled)
431 		priv->ieee80211->fts = DEFAULT_FRAG_THRESHOLD;
432 	else {
433 		if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
434 		    wrqu->frag.value > MAX_FRAG_THRESHOLD)
435 			return -EINVAL;
436 
437 		priv->ieee80211->fts = wrqu->frag.value & ~0x1;
438 	}
439 
440 	return 0;
441 }
442 
443 static int r8192_wx_get_frag(struct net_device *dev,
444 			     struct iw_request_info *info,
445 			     union iwreq_data *wrqu, char *extra)
446 {
447 	struct r8192_priv *priv = ieee80211_priv(dev);
448 
449 	wrqu->frag.value = priv->ieee80211->fts;
450 	wrqu->frag.fixed = 0;	/* no auto select */
451 	wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FRAG_THRESHOLD);
452 
453 	return 0;
454 }
455 
456 static int r8192_wx_set_wap(struct net_device *dev,
457 			 struct iw_request_info *info,
458 			 union iwreq_data *awrq,
459 			 char *extra)
460 {
461 	int ret;
462 	struct r8192_priv *priv = ieee80211_priv(dev);
463 	/* struct sockaddr *temp = (struct sockaddr *)awrq; */
464 	mutex_lock(&priv->wx_mutex);
465 
466 	ret = ieee80211_wx_set_wap(priv->ieee80211, info, awrq, extra);
467 
468 	mutex_unlock(&priv->wx_mutex);
469 
470 	return ret;
471 }
472 
473 static int r8192_wx_get_wap(struct net_device *dev,
474 			    struct iw_request_info *info,
475 			    union iwreq_data *wrqu, char *extra)
476 {
477 	struct r8192_priv *priv = ieee80211_priv(dev);
478 
479 	return ieee80211_wx_get_wap(priv->ieee80211, info, wrqu, extra);
480 }
481 
482 static int r8192_wx_get_enc(struct net_device *dev,
483 			    struct iw_request_info *info,
484 			    union iwreq_data *wrqu, char *key)
485 {
486 	struct r8192_priv *priv = ieee80211_priv(dev);
487 
488 	return ieee80211_wx_get_encode(priv->ieee80211, info, wrqu, key);
489 }
490 
491 static int r8192_wx_set_enc(struct net_device *dev,
492 			    struct iw_request_info *info,
493 			    union iwreq_data *wrqu, char *key)
494 {
495 	struct r8192_priv *priv = ieee80211_priv(dev);
496 	struct ieee80211_device *ieee = priv->ieee80211;
497 	int ret;
498 	u32 hwkey[4] = {0, 0, 0, 0};
499 	u8 mask = 0xff;
500 	u32 key_idx = 0;
501 	u8 zero_addr[4][6] = {	{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
502 				{0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
503 				{0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
504 				{0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
505 	int i;
506 
507 	if (!priv->up)
508 		return -ENETDOWN;
509 
510 	mutex_lock(&priv->wx_mutex);
511 
512 	RT_TRACE(COMP_SEC, "Setting SW wep key");
513 	ret = ieee80211_wx_set_encode(priv->ieee80211, info, wrqu, key);
514 
515 	mutex_unlock(&priv->wx_mutex);
516 
517 	/* sometimes, the length is zero while we do not type key value */
518 	if (wrqu->encoding.length != 0) {
519 		for (i = 0; i < 4; i++) {
520 			hwkey[i] |=  key[4*i+0]&mask;
521 			if (i == 1 && (4*i+1) == wrqu->encoding.length)
522 				mask = 0x00;
523 			if (i == 3 && (4*i+1) == wrqu->encoding.length)
524 				mask = 0x00;
525 			hwkey[i] |= (key[4*i+1]&mask)<<8;
526 			hwkey[i] |= (key[4*i+2]&mask)<<16;
527 			hwkey[i] |= (key[4*i+3]&mask)<<24;
528 		}
529 
530 		#define CONF_WEP40  0x4
531 		#define CONF_WEP104 0x14
532 
533 		switch (wrqu->encoding.flags & IW_ENCODE_INDEX) {
534 		case 0:
535 			key_idx = ieee->tx_keyidx;
536 			break;
537 		case 1:
538 			key_idx = 0;
539 			break;
540 		case 2:
541 			key_idx = 1;
542 			break;
543 		case 3:
544 			key_idx = 2;
545 			break;
546 		case 4:
547 			key_idx	= 3;
548 			break;
549 		default:
550 			break;
551 		}
552 
553 		if (wrqu->encoding.length == 0x5) {
554 			ieee->pairwise_key_type = KEY_TYPE_WEP40;
555 			EnableHWSecurityConfig8192(dev);
556 
557 			setKey(dev,
558 				key_idx,                /* EntryNo */
559 				key_idx,                /* KeyIndex */
560 				KEY_TYPE_WEP40,         /* KeyType */
561 				zero_addr[key_idx],
562 				0,                      /* DefaultKey */
563 				hwkey);                 /* KeyContent */
564 		} else if (wrqu->encoding.length == 0xd) {
565 			ieee->pairwise_key_type = KEY_TYPE_WEP104;
566 			EnableHWSecurityConfig8192(dev);
567 
568 			setKey(dev,
569 				key_idx,                /* EntryNo */
570 				key_idx,                /* KeyIndex */
571 				KEY_TYPE_WEP104,        /* KeyType */
572 				zero_addr[key_idx],
573 				0,                      /* DefaultKey */
574 				hwkey);                 /* KeyContent */
575 		} else {
576 			netdev_warn(dev, "wrong type in WEP, not WEP40 and WEP104\n");
577 		}
578 	}
579 
580 	return ret;
581 }
582 
583 static int r8192_wx_set_scan_type(struct net_device *dev, struct iw_request_info *aa,
584 					union iwreq_data *wrqu, char *p)
585 {
586 	struct r8192_priv *priv = ieee80211_priv(dev);
587 	int *parms = (int *)p;
588 	int mode = parms[0];
589 
590 	priv->ieee80211->active_scan = mode;
591 
592 	return 1;
593 }
594 
595 static int r8192_wx_set_retry(struct net_device *dev,
596 				struct iw_request_info *info,
597 				union iwreq_data *wrqu, char *extra)
598 {
599 	struct r8192_priv *priv = ieee80211_priv(dev);
600 	int err = 0;
601 
602 	mutex_lock(&priv->wx_mutex);
603 
604 	if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
605 	    wrqu->retry.disabled){
606 		err = -EINVAL;
607 		goto exit;
608 	}
609 	if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) {
610 		err = -EINVAL;
611 		goto exit;
612 	}
613 
614 	if (wrqu->retry.value > R8180_MAX_RETRY) {
615 		err = -EINVAL;
616 		goto exit;
617 	}
618 	if (wrqu->retry.flags & IW_RETRY_MAX) {
619 		priv->retry_rts = wrqu->retry.value;
620 		DMESG("Setting retry for RTS/CTS data to %d", wrqu->retry.value);
621 
622 	} else {
623 		priv->retry_data = wrqu->retry.value;
624 		DMESG("Setting retry for non RTS/CTS data to %d", wrqu->retry.value);
625 	}
626 
627 	/* FIXME !
628 	 * We might try to write directly the TX config register
629 	 * or to restart just the (R)TX process.
630 	 * I'm unsure if whole reset is really needed
631 	 */
632 
633 	rtl8192_commit(dev);
634 exit:
635 	mutex_unlock(&priv->wx_mutex);
636 
637 	return err;
638 }
639 
640 static int r8192_wx_get_retry(struct net_device *dev,
641 				struct iw_request_info *info,
642 				union iwreq_data *wrqu, char *extra)
643 {
644 	struct r8192_priv *priv = ieee80211_priv(dev);
645 
646 	wrqu->retry.disabled = 0; /* can't be disabled */
647 
648 	if ((wrqu->retry.flags & IW_RETRY_TYPE) ==
649 	    IW_RETRY_LIFETIME)
650 		return -EINVAL;
651 
652 	if (wrqu->retry.flags & IW_RETRY_MAX) {
653 		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
654 		wrqu->retry.value = priv->retry_rts;
655 	} else {
656 		wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
657 		wrqu->retry.value = priv->retry_data;
658 	}
659 
660 	return 0;
661 }
662 
663 static int r8192_wx_get_sens(struct net_device *dev,
664 				struct iw_request_info *info,
665 				union iwreq_data *wrqu, char *extra)
666 {
667 	struct r8192_priv *priv = ieee80211_priv(dev);
668 
669 	if (!priv->rf_set_sens)
670 		return -1; /* we have not this support for this radio */
671 	wrqu->sens.value = priv->sens;
672 	return 0;
673 }
674 
675 static int r8192_wx_set_sens(struct net_device *dev,
676 				struct iw_request_info *info,
677 				union iwreq_data *wrqu, char *extra)
678 {
679 	struct r8192_priv *priv = ieee80211_priv(dev);
680 	short err = 0;
681 
682 	mutex_lock(&priv->wx_mutex);
683 	if (!priv->rf_set_sens) {
684 		err = -1; /* we have not this support for this radio */
685 		goto exit;
686 	}
687 	if (priv->rf_set_sens(dev, wrqu->sens.value) == 0)
688 		priv->sens = wrqu->sens.value;
689 	else
690 		err = -EINVAL;
691 
692 exit:
693 	mutex_unlock(&priv->wx_mutex);
694 
695 	return err;
696 }
697 
698 /* hw security need to reorganized. */
699 static int r8192_wx_set_enc_ext(struct net_device *dev,
700 					struct iw_request_info *info,
701 					union iwreq_data *wrqu, char *extra)
702 {
703 	int ret = 0;
704 	struct r8192_priv *priv = ieee80211_priv(dev);
705 	struct ieee80211_device *ieee = priv->ieee80211;
706 
707 	mutex_lock(&priv->wx_mutex);
708 	ret = ieee80211_wx_set_encode_ext(priv->ieee80211, info, wrqu, extra);
709 
710 	{
711 		u8 broadcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
712 		u8 zero[6] = {0};
713 		u32 key[4] = {0};
714 		struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
715 		struct iw_point *encoding = &wrqu->encoding;
716 		u8 idx = 0, alg = 0, group = 0;
717 
718 		if ((encoding->flags & IW_ENCODE_DISABLED) || ext->alg == IW_ENCODE_ALG_NONE)
719 			/* none is not allowed to use hwsec WB 2008.07.01 */
720 			goto end_hw_sec;
721 
722 		/* as IW_ENCODE_ALG_CCMP is defined to be 3 and KEY_TYPE_CCMP is defined to 4; */
723 		alg =  (ext->alg == IW_ENCODE_ALG_CCMP)?KEY_TYPE_CCMP:ext->alg;
724 		idx = encoding->flags & IW_ENCODE_INDEX;
725 		if (idx)
726 			idx--;
727 		group = ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY;
728 
729 		if ((!group) || (IW_MODE_ADHOC == ieee->iw_mode) || (alg ==  KEY_TYPE_WEP40)) {
730 			if ((ext->key_len == 13) && (alg == KEY_TYPE_WEP40))
731 				alg = KEY_TYPE_WEP104;
732 			ieee->pairwise_key_type = alg;
733 			EnableHWSecurityConfig8192(dev);
734 		}
735 		memcpy((u8 *)key, ext->key, 16); /* we only get 16 bytes key.why? WB 2008.7.1 */
736 
737 		if ((alg & KEY_TYPE_WEP40) && (ieee->auth_mode != 2)) {
738 			setKey(dev,
739 					idx,	/* EntryNao */
740 					idx,	/* KeyIndex */
741 					alg,	/* KeyType */
742 					zero,	/* MacAddr */
743 					0,	/* DefaultKey */
744 					key);	/* KeyContent */
745 		} else if (group) {
746 			ieee->group_key_type = alg;
747 			setKey(dev,
748 					idx,	/* EntryNo */
749 					idx,	/* KeyIndex */
750 					alg,	/* KeyType */
751 					broadcast_addr,	/* MacAddr */
752 					0,		/* DefaultKey */
753 					key);		/* KeyContent */
754 		} else {	/* pairwise key */
755 			setKey(dev,
756 					4,	/* EntryNo */
757 					idx,	/* KeyIndex */
758 					alg,	/* KeyType */
759 					(u8 *)ieee->ap_mac_addr,/* MacAddr */
760 					0,			/* DefaultKey */
761 					key);			/* KeyContent */
762 		}
763 	}
764 
765 end_hw_sec:
766 
767 	mutex_unlock(&priv->wx_mutex);
768 	return ret;
769 }
770 
771 static int r8192_wx_set_auth(struct net_device *dev,
772 					struct iw_request_info *info,
773 					union iwreq_data *data, char *extra)
774 {
775 	int ret = 0;
776 	struct r8192_priv *priv = ieee80211_priv(dev);
777 
778 	mutex_lock(&priv->wx_mutex);
779 	ret = ieee80211_wx_set_auth(priv->ieee80211, info, &(data->param), extra);
780 	mutex_unlock(&priv->wx_mutex);
781 	return ret;
782 }
783 
784 static int r8192_wx_set_mlme(struct net_device *dev,
785 					struct iw_request_info *info,
786 					union iwreq_data *wrqu, char *extra)
787 {
788 	int ret = 0;
789 	struct r8192_priv *priv = ieee80211_priv(dev);
790 
791 	mutex_lock(&priv->wx_mutex);
792 	ret = ieee80211_wx_set_mlme(priv->ieee80211, info, wrqu, extra);
793 
794 	mutex_unlock(&priv->wx_mutex);
795 	return ret;
796 }
797 
798 static int r8192_wx_set_gen_ie(struct net_device *dev,
799 					struct iw_request_info *info,
800 					union iwreq_data *data, char *extra)
801 {
802 	int ret = 0;
803 	struct r8192_priv *priv = ieee80211_priv(dev);
804 
805 	mutex_lock(&priv->wx_mutex);
806 	ret = ieee80211_wx_set_gen_ie(priv->ieee80211, extra, data->data.length);
807 	mutex_unlock(&priv->wx_mutex);
808 	return ret;
809 }
810 
811 static int dummy(struct net_device *dev, struct iw_request_info *a,
812 		 union iwreq_data *wrqu, char *b)
813 {
814 	return -1;
815 }
816 
817 static iw_handler r8192_wx_handlers[] = {
818 	NULL,                     /* SIOCSIWCOMMIT */
819 	r8192_wx_get_name,	  /* SIOCGIWNAME */
820 	dummy,                    /* SIOCSIWNWID */
821 	dummy,                    /* SIOCGIWNWID */
822 	r8192_wx_set_freq,        /* SIOCSIWFREQ */
823 	r8192_wx_get_freq,        /* SIOCGIWFREQ */
824 	r8192_wx_set_mode,        /* SIOCSIWMODE */
825 	r8192_wx_get_mode,        /* SIOCGIWMODE */
826 	r8192_wx_set_sens,        /* SIOCSIWSENS */
827 	r8192_wx_get_sens,        /* SIOCGIWSENS */
828 	NULL,                     /* SIOCSIWRANGE */
829 	rtl8180_wx_get_range,	  /* SIOCGIWRANGE */
830 	NULL,                     /* SIOCSIWPRIV */
831 	NULL,                     /* SIOCGIWPRIV */
832 	NULL,                     /* SIOCSIWSTATS */
833 	NULL,                     /* SIOCGIWSTATS */
834 	dummy,                    /* SIOCSIWSPY */
835 	dummy,                    /* SIOCGIWSPY */
836 	NULL,                     /* SIOCGIWTHRSPY */
837 	NULL,                     /* SIOCWIWTHRSPY */
838 	r8192_wx_set_wap,	  /* SIOCSIWAP */
839 	r8192_wx_get_wap,         /* SIOCGIWAP */
840 	r8192_wx_set_mlme,                     /* MLME-- */
841 	dummy,                     /* SIOCGIWAPLIST -- deprecated */
842 	r8192_wx_set_scan,        /* SIOCSIWSCAN */
843 	r8192_wx_get_scan,        /* SIOCGIWSCAN */
844 	r8192_wx_set_essid,       /* SIOCSIWESSID */
845 	r8192_wx_get_essid,       /* SIOCGIWESSID */
846 	dummy,                    /* SIOCSIWNICKN */
847 	dummy,                    /* SIOCGIWNICKN */
848 	NULL,                     /* -- hole -- */
849 	NULL,                     /* -- hole -- */
850 	r8192_wx_set_rate,        /* SIOCSIWRATE */
851 	r8192_wx_get_rate,        /* SIOCGIWRATE */
852 	r8192_wx_set_rts,                    /* SIOCSIWRTS */
853 	r8192_wx_get_rts,                    /* SIOCGIWRTS */
854 	r8192_wx_set_frag,        /* SIOCSIWFRAG */
855 	r8192_wx_get_frag,        /* SIOCGIWFRAG */
856 	dummy,                    /* SIOCSIWTXPOW */
857 	dummy,                    /* SIOCGIWTXPOW */
858 	r8192_wx_set_retry,       /* SIOCSIWRETRY */
859 	r8192_wx_get_retry,       /* SIOCGIWRETRY */
860 	r8192_wx_set_enc,         /* SIOCSIWENCODE */
861 	r8192_wx_get_enc,         /* SIOCGIWENCODE */
862 	r8192_wx_set_power,                    /* SIOCSIWPOWER */
863 	r8192_wx_get_power,                    /* SIOCGIWPOWER */
864 	NULL,			/*---hole---*/
865 	NULL,			/*---hole---*/
866 	r8192_wx_set_gen_ie, /* NULL, */		/* SIOCSIWGENIE */
867 	NULL,			/* SIOCSIWGENIE */
868 
869 	r8192_wx_set_auth,/* NULL, */			/* SIOCSIWAUTH */
870 	NULL,/* r8192_wx_get_auth, */ /* NULL, */	/* SIOCSIWAUTH */
871 	r8192_wx_set_enc_ext,			/* SIOCSIWENCODEEXT */
872 	NULL,/* r8192_wx_get_enc_ext, *//* NULL, */			/* SIOCSIWENCODEEXT */
873 	NULL,			/* SIOCSIWPMKSA */
874 	NULL,			 /*---hole---*/
875 
876 };
877 
878 
879 static const struct iw_priv_args r8192_private_args[] = {
880 
881 	{
882 		SIOCIWFIRSTPRIV + 0x0,
883 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "badcrc"
884 	},
885 
886 	{
887 		SIOCIWFIRSTPRIV + 0x1,
888 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "activescan"
889 
890 	},
891 	{
892 		SIOCIWFIRSTPRIV + 0x2,
893 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "rawtx"
894 	},
895 	{
896 		SIOCIWFIRSTPRIV + 0x3,
897 		IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, 0, "forcereset"
898 
899 	}
900 
901 };
902 
903 static iw_handler r8192_private_handler[] = {
904 	r8192_wx_set_crcmon,
905 	r8192_wx_set_scan_type,
906 	r8192_wx_set_rawtx,
907 	r8192_wx_force_reset,
908 };
909 
910 struct iw_statistics *r8192_get_wireless_stats(struct net_device *dev)
911 {
912 	struct r8192_priv *priv = ieee80211_priv(dev);
913 	struct ieee80211_device *ieee = priv->ieee80211;
914 	struct iw_statistics *wstats = &priv->wstats;
915 	int tmp_level = 0;
916 	int tmp_qual = 0;
917 	int tmp_noise = 0;
918 
919 	if (ieee->state < IEEE80211_LINKED) {
920 		wstats->qual.qual = 0;
921 		wstats->qual.level = 0;
922 		wstats->qual.noise = 0;
923 		wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
924 		return wstats;
925 	}
926 
927 	tmp_level = (&ieee->current_network)->stats.rssi;
928 	tmp_qual = (&ieee->current_network)->stats.signal;
929 	tmp_noise = (&ieee->current_network)->stats.noise;
930 
931 	wstats->qual.level = tmp_level;
932 	wstats->qual.qual = tmp_qual;
933 	wstats->qual.noise = tmp_noise;
934 	wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
935 	return wstats;
936 }
937 
938 const struct iw_handler_def  r8192_wx_handlers_def = {
939 	.standard = r8192_wx_handlers,
940 	.num_standard = ARRAY_SIZE(r8192_wx_handlers),
941 	.private = r8192_private_handler,
942 	.num_private = ARRAY_SIZE(r8192_private_handler),
943 	.num_private_args = sizeof(r8192_private_args) / sizeof(struct iw_priv_args),
944 	.get_wireless_stats = r8192_get_wireless_stats,
945 	.private_args = (struct iw_priv_args *)r8192_private_args,
946 };
947