1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright(c) 2008 - 2010 Realtek Corporation. All rights reserved.
4 *
5 * Contact Information: wlanfae <wlanfae@realtek.com>
6 */
7 #include <linux/string.h>
8 #include "rtl_core.h"
9 #include "rtl_wx.h"
10
11 #define RATE_COUNT 12
12 static u32 rtl8192_rates[] = {
13 1000000, 2000000, 5500000, 11000000, 6000000, 9000000, 12000000,
14 18000000, 24000000, 36000000, 48000000, 54000000
15 };
16
17 #ifndef ENETDOWN
18 #define ENETDOWN 1
19 #endif
20
_rtl92e_wx_get_freq(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)21 static int _rtl92e_wx_get_freq(struct net_device *dev,
22 struct iw_request_info *a,
23 union iwreq_data *wrqu, char *b)
24 {
25 struct r8192_priv *priv = rtllib_priv(dev);
26
27 return rtllib_wx_get_freq(priv->rtllib, a, wrqu, b);
28 }
29
_rtl92e_wx_get_mode(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)30 static int _rtl92e_wx_get_mode(struct net_device *dev,
31 struct iw_request_info *a,
32 union iwreq_data *wrqu, char *b)
33 {
34 struct r8192_priv *priv = rtllib_priv(dev);
35
36 return rtllib_wx_get_mode(priv->rtllib, a, wrqu, b);
37 }
38
_rtl92e_wx_get_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)39 static int _rtl92e_wx_get_rate(struct net_device *dev,
40 struct iw_request_info *info,
41 union iwreq_data *wrqu, char *extra)
42 {
43 struct r8192_priv *priv = rtllib_priv(dev);
44
45 return rtllib_wx_get_rate(priv->rtllib, info, wrqu, extra);
46 }
47
_rtl92e_wx_set_rate(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)48 static int _rtl92e_wx_set_rate(struct net_device *dev,
49 struct iw_request_info *info,
50 union iwreq_data *wrqu, char *extra)
51 {
52 int ret;
53 struct r8192_priv *priv = rtllib_priv(dev);
54
55 if (priv->hw_radio_off)
56 return 0;
57
58 mutex_lock(&priv->wx_mutex);
59
60 ret = rtllib_wx_set_rate(priv->rtllib, info, wrqu, extra);
61
62 mutex_unlock(&priv->wx_mutex);
63
64 return ret;
65 }
66
_rtl92e_wx_set_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)67 static int _rtl92e_wx_set_rts(struct net_device *dev,
68 struct iw_request_info *info,
69 union iwreq_data *wrqu, char *extra)
70 {
71 int ret;
72 struct r8192_priv *priv = rtllib_priv(dev);
73
74 if (priv->hw_radio_off)
75 return 0;
76
77 mutex_lock(&priv->wx_mutex);
78
79 ret = rtllib_wx_set_rts(priv->rtllib, info, wrqu, extra);
80
81 mutex_unlock(&priv->wx_mutex);
82
83 return ret;
84 }
85
_rtl92e_wx_get_rts(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)86 static int _rtl92e_wx_get_rts(struct net_device *dev,
87 struct iw_request_info *info,
88 union iwreq_data *wrqu, char *extra)
89 {
90 struct r8192_priv *priv = rtllib_priv(dev);
91
92 return rtllib_wx_get_rts(priv->rtllib, info, wrqu, extra);
93 }
94
_rtl92e_wx_set_power(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)95 static int _rtl92e_wx_set_power(struct net_device *dev,
96 struct iw_request_info *info,
97 union iwreq_data *wrqu, char *extra)
98 {
99 int ret;
100 struct r8192_priv *priv = rtllib_priv(dev);
101
102 if (priv->hw_radio_off) {
103 netdev_warn(dev, "%s(): Can't set Power: Radio is Off.\n",
104 __func__);
105 return 0;
106 }
107 mutex_lock(&priv->wx_mutex);
108
109 ret = rtllib_wx_set_power(priv->rtllib, info, wrqu, extra);
110
111 mutex_unlock(&priv->wx_mutex);
112
113 return ret;
114 }
115
_rtl92e_wx_get_power(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)116 static int _rtl92e_wx_get_power(struct net_device *dev,
117 struct iw_request_info *info,
118 union iwreq_data *wrqu, char *extra)
119 {
120 struct r8192_priv *priv = rtllib_priv(dev);
121
122 return rtllib_wx_get_power(priv->rtllib, info, wrqu, extra);
123 }
124
_rtl92e_wx_set_mode(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)125 static int _rtl92e_wx_set_mode(struct net_device *dev,
126 struct iw_request_info *a,
127 union iwreq_data *wrqu, char *b)
128 {
129 struct r8192_priv *priv = rtllib_priv(dev);
130
131 enum rt_rf_power_state rt_state;
132 int ret;
133
134 if (priv->hw_radio_off)
135 return 0;
136 rt_state = priv->rtllib->rf_power_state;
137 mutex_lock(&priv->wx_mutex);
138 if (wrqu->mode == IW_MODE_MONITOR) {
139 if (rt_state == rf_off) {
140 if (priv->rtllib->rf_off_reason >
141 RF_CHANGE_BY_IPS) {
142 netdev_warn(dev, "%s(): RF is OFF.\n",
143 __func__);
144 mutex_unlock(&priv->wx_mutex);
145 return -1;
146 }
147 netdev_info(dev,
148 "=========>%s(): rtl92e_ips_leave\n",
149 __func__);
150 mutex_lock(&priv->rtllib->ips_mutex);
151 rtl92e_ips_leave(dev);
152 mutex_unlock(&priv->rtllib->ips_mutex);
153 }
154 }
155 ret = rtllib_wx_set_mode(priv->rtllib, a, wrqu, b);
156
157 mutex_unlock(&priv->wx_mutex);
158 return ret;
159 }
160
_rtl92e_wx_get_range(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)161 static int _rtl92e_wx_get_range(struct net_device *dev,
162 struct iw_request_info *info,
163 union iwreq_data *wrqu, char *extra)
164 {
165 struct iw_range *range = (struct iw_range *)extra;
166 struct r8192_priv *priv = rtllib_priv(dev);
167 u16 val;
168 int i;
169
170 wrqu->data.length = sizeof(*range);
171 memset(range, 0, sizeof(*range));
172
173 /* ~130 Mb/s real (802.11n) */
174 range->throughput = 130 * 1000 * 1000;
175
176 range->max_qual.qual = 100;
177 range->max_qual.level = 0;
178 range->max_qual.noise = 0;
179 range->max_qual.updated = 7; /* Updated all three */
180
181 range->avg_qual.qual = 70; /* > 8% missed beacons is 'bad' */
182 range->avg_qual.level = 0;
183 range->avg_qual.noise = 0;
184 range->avg_qual.updated = 7; /* Updated all three */
185
186 range->num_bitrates = min(RATE_COUNT, IW_MAX_BITRATES);
187
188 for (i = 0; i < range->num_bitrates; i++)
189 range->bitrate[i] = rtl8192_rates[i];
190
191 range->max_rts = DEFAULT_RTS_THRESHOLD;
192 range->min_frag = MIN_FRAG_THRESHOLD;
193 range->max_frag = MAX_FRAG_THRESHOLD;
194
195 range->min_pmp = 0;
196 range->max_pmp = 5000000;
197 range->min_pmt = 0;
198 range->max_pmt = 65535 * 1000;
199 range->pmp_flags = IW_POWER_PERIOD;
200 range->pmt_flags = IW_POWER_TIMEOUT;
201 range->pm_capa = IW_POWER_PERIOD | IW_POWER_TIMEOUT | IW_POWER_ALL_R;
202 range->we_version_compiled = WIRELESS_EXT;
203 range->we_version_source = 18;
204
205 for (i = 0, val = 0; i < 14; i++) {
206 if ((priv->rtllib->active_channel_map)[i + 1]) {
207 s32 freq_khz;
208
209 range->freq[val].i = i + 1;
210 freq_khz = ieee80211_channel_to_freq_khz(i + 1, NL80211_BAND_2GHZ);
211 range->freq[val].m = freq_khz * 100;
212 range->freq[val].e = 1;
213 val++;
214 }
215
216 if (val == IW_MAX_FREQUENCIES)
217 break;
218 }
219 range->num_frequency = val;
220 range->num_channels = val;
221 range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
222 IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
223 range->scan_capa = IW_SCAN_CAPA_ESSID | IW_SCAN_CAPA_TYPE;
224
225 /* Event capability (kernel + driver) */
226
227 return 0;
228 }
229
_rtl92e_wx_set_scan(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)230 static int _rtl92e_wx_set_scan(struct net_device *dev,
231 struct iw_request_info *a,
232 union iwreq_data *wrqu, char *b)
233 {
234 struct r8192_priv *priv = rtllib_priv(dev);
235 struct rtllib_device *ieee = priv->rtllib;
236 enum rt_rf_power_state rt_state;
237 int ret;
238
239 if (!(ieee->softmac_features & IEEE_SOFTMAC_SCAN)) {
240 if ((ieee->link_state >= RTLLIB_ASSOCIATING) &&
241 (ieee->link_state <= RTLLIB_ASSOCIATING_AUTHENTICATED))
242 return 0;
243 if ((priv->rtllib->link_state == MAC80211_LINKED) &&
244 (priv->rtllib->cnt_after_link < 2))
245 return 0;
246 }
247
248 if (priv->hw_radio_off) {
249 netdev_info(dev, "================>%s(): hwradio off\n",
250 __func__);
251 return 0;
252 }
253 rt_state = priv->rtllib->rf_power_state;
254 if (!priv->up)
255 return -ENETDOWN;
256 if (priv->rtllib->link_detect_info.busy_traffic)
257 return -EAGAIN;
258
259 if (wrqu->data.flags & IW_SCAN_THIS_ESSID) {
260 struct iw_scan_req *req = (struct iw_scan_req *)b;
261
262 if (req->essid_len) {
263 int len = min_t(int, req->essid_len, IW_ESSID_MAX_SIZE);
264
265 ieee->current_network.ssid_len = len;
266 memcpy(ieee->current_network.ssid, req->essid, len);
267 }
268 }
269
270 mutex_lock(&priv->wx_mutex);
271
272 priv->rtllib->first_ie_in_scan = true;
273
274 if (priv->rtllib->link_state != MAC80211_LINKED) {
275 if (rt_state == rf_off) {
276 if (priv->rtllib->rf_off_reason >
277 RF_CHANGE_BY_IPS) {
278 netdev_warn(dev, "%s(): RF is OFF.\n",
279 __func__);
280 mutex_unlock(&priv->wx_mutex);
281 return -1;
282 }
283 mutex_lock(&priv->rtllib->ips_mutex);
284 rtl92e_ips_leave(dev);
285 mutex_unlock(&priv->rtllib->ips_mutex);
286 }
287 rtllib_stop_scan(priv->rtllib);
288 if (priv->rtllib->rf_power_state != rf_off) {
289 priv->rtllib->actscanning = true;
290
291 ieee->scan_operation_backup_handler(ieee->dev, SCAN_OPT_BACKUP);
292
293 rtllib_start_scan_syncro(priv->rtllib);
294
295 ieee->scan_operation_backup_handler(ieee->dev, SCAN_OPT_RESTORE);
296 }
297 ret = 0;
298 } else {
299 priv->rtllib->actscanning = true;
300 ret = rtllib_wx_set_scan(priv->rtllib, a, wrqu, b);
301 }
302
303 mutex_unlock(&priv->wx_mutex);
304 return ret;
305 }
306
_rtl92e_wx_get_scan(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)307 static int _rtl92e_wx_get_scan(struct net_device *dev,
308 struct iw_request_info *a,
309 union iwreq_data *wrqu, char *b)
310 {
311 int ret;
312 struct r8192_priv *priv = rtllib_priv(dev);
313
314 if (!priv->up)
315 return -ENETDOWN;
316
317 if (priv->hw_radio_off)
318 return 0;
319
320 mutex_lock(&priv->wx_mutex);
321
322 ret = rtllib_wx_get_scan(priv->rtllib, a, wrqu, b);
323
324 mutex_unlock(&priv->wx_mutex);
325
326 return ret;
327 }
328
_rtl92e_wx_set_essid(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)329 static int _rtl92e_wx_set_essid(struct net_device *dev,
330 struct iw_request_info *a,
331 union iwreq_data *wrqu, char *b)
332 {
333 struct r8192_priv *priv = rtllib_priv(dev);
334 int ret;
335
336 if (priv->hw_radio_off) {
337 netdev_info(dev,
338 "=========>%s():hw radio off,or Rf state is rf_off, return\n",
339 __func__);
340 return 0;
341 }
342 mutex_lock(&priv->wx_mutex);
343 ret = rtllib_wx_set_essid(priv->rtllib, a, wrqu, b);
344
345 mutex_unlock(&priv->wx_mutex);
346
347 return ret;
348 }
349
_rtl92e_wx_get_essid(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)350 static int _rtl92e_wx_get_essid(struct net_device *dev,
351 struct iw_request_info *a,
352 union iwreq_data *wrqu, char *b)
353 {
354 int ret;
355 struct r8192_priv *priv = rtllib_priv(dev);
356
357 mutex_lock(&priv->wx_mutex);
358
359 ret = rtllib_wx_get_essid(priv->rtllib, a, wrqu, b);
360
361 mutex_unlock(&priv->wx_mutex);
362
363 return ret;
364 }
365
_rtl92e_wx_set_nick(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)366 static int _rtl92e_wx_set_nick(struct net_device *dev,
367 struct iw_request_info *info,
368 union iwreq_data *wrqu, char *extra)
369 {
370 struct r8192_priv *priv = rtllib_priv(dev);
371
372 if (wrqu->data.length > IW_ESSID_MAX_SIZE)
373 return -E2BIG;
374 mutex_lock(&priv->wx_mutex);
375 wrqu->data.length = min_t(size_t, wrqu->data.length,
376 sizeof(priv->nick));
377 memset(priv->nick, 0, sizeof(priv->nick));
378 memcpy(priv->nick, extra, wrqu->data.length);
379 mutex_unlock(&priv->wx_mutex);
380 return 0;
381 }
382
_rtl92e_wx_get_nick(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)383 static int _rtl92e_wx_get_nick(struct net_device *dev,
384 struct iw_request_info *info,
385 union iwreq_data *wrqu, char *extra)
386 {
387 struct r8192_priv *priv = rtllib_priv(dev);
388
389 mutex_lock(&priv->wx_mutex);
390 wrqu->data.length = strlen(priv->nick);
391 memcpy(extra, priv->nick, wrqu->data.length);
392 wrqu->data.flags = 1; /* active */
393 mutex_unlock(&priv->wx_mutex);
394 return 0;
395 }
396
_rtl92e_wx_set_freq(struct net_device * dev,struct iw_request_info * a,union iwreq_data * wrqu,char * b)397 static int _rtl92e_wx_set_freq(struct net_device *dev,
398 struct iw_request_info *a,
399 union iwreq_data *wrqu, char *b)
400 {
401 int ret;
402 struct r8192_priv *priv = rtllib_priv(dev);
403
404 if (priv->hw_radio_off)
405 return 0;
406
407 mutex_lock(&priv->wx_mutex);
408
409 ret = rtllib_wx_set_freq(priv->rtllib, a, wrqu, b);
410
411 mutex_unlock(&priv->wx_mutex);
412 return ret;
413 }
414
_rtl92e_wx_get_name(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)415 static int _rtl92e_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 = rtllib_priv(dev);
420
421 return rtllib_wx_get_name(priv->rtllib, info, wrqu, extra);
422 }
423
_rtl92e_wx_set_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)424 static int _rtl92e_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 = rtllib_priv(dev);
429
430 if (priv->hw_radio_off)
431 return 0;
432
433 if (wrqu->frag.disabled) {
434 priv->rtllib->fts = DEFAULT_FRAG_THRESHOLD;
435 } else {
436 if (wrqu->frag.value < MIN_FRAG_THRESHOLD ||
437 wrqu->frag.value > MAX_FRAG_THRESHOLD)
438 return -EINVAL;
439
440 priv->rtllib->fts = wrqu->frag.value & ~0x1;
441 }
442
443 return 0;
444 }
445
_rtl92e_wx_get_frag(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)446 static int _rtl92e_wx_get_frag(struct net_device *dev,
447 struct iw_request_info *info,
448 union iwreq_data *wrqu, char *extra)
449 {
450 struct r8192_priv *priv = rtllib_priv(dev);
451
452 wrqu->frag.value = priv->rtllib->fts;
453 wrqu->frag.fixed = 0; /* no auto select */
454 wrqu->frag.disabled = (wrqu->frag.value == DEFAULT_FRAG_THRESHOLD);
455
456 return 0;
457 }
458
_rtl92e_wx_set_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * awrq,char * extra)459 static int _rtl92e_wx_set_wap(struct net_device *dev,
460 struct iw_request_info *info,
461 union iwreq_data *awrq, char *extra)
462 {
463 int ret;
464 struct r8192_priv *priv = rtllib_priv(dev);
465
466 if (priv->hw_radio_off)
467 return 0;
468
469 mutex_lock(&priv->wx_mutex);
470
471 ret = rtllib_wx_set_wap(priv->rtllib, info, awrq, extra);
472
473 mutex_unlock(&priv->wx_mutex);
474
475 return ret;
476 }
477
_rtl92e_wx_get_wap(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)478 static int _rtl92e_wx_get_wap(struct net_device *dev,
479 struct iw_request_info *info,
480 union iwreq_data *wrqu, char *extra)
481 {
482 struct r8192_priv *priv = rtllib_priv(dev);
483
484 return rtllib_wx_get_wap(priv->rtllib, info, wrqu, extra);
485 }
486
_rtl92e_wx_get_enc(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * key)487 static int _rtl92e_wx_get_enc(struct net_device *dev,
488 struct iw_request_info *info,
489 union iwreq_data *wrqu, char *key)
490 {
491 struct r8192_priv *priv = rtllib_priv(dev);
492
493 return rtllib_wx_get_encode(priv->rtllib, info, wrqu, key);
494 }
495
_rtl92e_wx_set_enc(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * key)496 static int _rtl92e_wx_set_enc(struct net_device *dev,
497 struct iw_request_info *info,
498 union iwreq_data *wrqu, char *key)
499 {
500 struct r8192_priv *priv = rtllib_priv(dev);
501 int ret;
502
503 struct rtllib_device *ieee = priv->rtllib;
504 u32 hwkey[4] = {0, 0, 0, 0};
505 u8 mask = 0xff;
506 u32 key_idx = 0;
507 u8 zero_addr[4][6] = {{0x00, 0x00, 0x00, 0x00, 0x00, 0x00},
508 {0x00, 0x00, 0x00, 0x00, 0x00, 0x01},
509 {0x00, 0x00, 0x00, 0x00, 0x00, 0x02},
510 {0x00, 0x00, 0x00, 0x00, 0x00, 0x03} };
511 int i;
512
513 if (priv->hw_radio_off)
514 return 0;
515
516 if (!priv->up)
517 return -ENETDOWN;
518
519 priv->rtllib->wx_set_enc = 1;
520 mutex_lock(&priv->rtllib->ips_mutex);
521 rtl92e_ips_leave(dev);
522 mutex_unlock(&priv->rtllib->ips_mutex);
523 mutex_lock(&priv->wx_mutex);
524
525 ret = rtllib_wx_set_encode(priv->rtllib, info, wrqu, key);
526 mutex_unlock(&priv->wx_mutex);
527
528 if (wrqu->encoding.flags & IW_ENCODE_DISABLED) {
529 ieee->pairwise_key_type = KEY_TYPE_NA;
530 ieee->group_key_type = KEY_TYPE_NA;
531 rtl92e_cam_reset(dev);
532 memset(priv->rtllib->swcamtable, 0,
533 sizeof(struct sw_cam_table) * 32);
534 goto end_hw_sec;
535 }
536 if (wrqu->encoding.length != 0) {
537 for (i = 0; i < 4; i++) {
538 hwkey[i] |= key[4 * i + 0] & mask;
539 if (i == 1 && (4 * i + 1) == wrqu->encoding.length)
540 mask = 0x00;
541 if (i == 3 && (4 * i + 1) == wrqu->encoding.length)
542 mask = 0x00;
543 hwkey[i] |= (key[4 * i + 1] & mask) << 8;
544 hwkey[i] |= (key[4 * i + 2] & mask) << 16;
545 hwkey[i] |= (key[4 * i + 3] & mask) << 24;
546 }
547
548 switch (wrqu->encoding.flags & IW_ENCODE_INDEX) {
549 case 0:
550 key_idx = ieee->crypt_info.tx_keyidx;
551 break;
552 case 1:
553 key_idx = 0;
554 break;
555 case 2:
556 key_idx = 1;
557 break;
558 case 3:
559 key_idx = 2;
560 break;
561 case 4:
562 key_idx = 3;
563 break;
564 default:
565 break;
566 }
567 if (wrqu->encoding.length == 0x5) {
568 ieee->pairwise_key_type = KEY_TYPE_WEP40;
569 rtl92e_enable_hw_security_config(dev);
570 }
571
572 else if (wrqu->encoding.length == 0xd) {
573 ieee->pairwise_key_type = KEY_TYPE_WEP104;
574 rtl92e_enable_hw_security_config(dev);
575 rtl92e_set_key(dev, key_idx, key_idx, KEY_TYPE_WEP104,
576 zero_addr[key_idx], 0, hwkey);
577 rtl92e_set_swcam(dev, key_idx, key_idx, KEY_TYPE_WEP104,
578 zero_addr[key_idx], hwkey);
579 } else {
580 netdev_info(dev,
581 "wrong type in WEP, not WEP40 and WEP104\n");
582 }
583 }
584
585 end_hw_sec:
586 priv->rtllib->wx_set_enc = 0;
587 return ret;
588 }
589
590 #define R8192_MAX_RETRY 255
_rtl92e_wx_set_retry(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)591 static int _rtl92e_wx_set_retry(struct net_device *dev,
592 struct iw_request_info *info,
593 union iwreq_data *wrqu, char *extra)
594 {
595 struct r8192_priv *priv = rtllib_priv(dev);
596 int err = 0;
597
598 if (priv->hw_radio_off)
599 return 0;
600
601 mutex_lock(&priv->wx_mutex);
602
603 if (wrqu->retry.flags & IW_RETRY_LIFETIME ||
604 wrqu->retry.disabled) {
605 err = -EINVAL;
606 goto exit;
607 }
608 if (!(wrqu->retry.flags & IW_RETRY_LIMIT)) {
609 err = -EINVAL;
610 goto exit;
611 }
612
613 if (wrqu->retry.value > R8192_MAX_RETRY) {
614 err = -EINVAL;
615 goto exit;
616 }
617 if (wrqu->retry.flags & IW_RETRY_MAX)
618 priv->retry_rts = wrqu->retry.value;
619 else
620 priv->retry_data = wrqu->retry.value;
621
622 rtl92e_commit(dev);
623 exit:
624 mutex_unlock(&priv->wx_mutex);
625
626 return err;
627 }
628
_rtl92e_wx_get_retry(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)629 static int _rtl92e_wx_get_retry(struct net_device *dev,
630 struct iw_request_info *info,
631 union iwreq_data *wrqu, char *extra)
632 {
633 struct r8192_priv *priv = rtllib_priv(dev);
634
635 wrqu->retry.disabled = 0; /* can't be disabled */
636
637 if ((wrqu->retry.flags & IW_RETRY_TYPE) ==
638 IW_RETRY_LIFETIME)
639 return -EINVAL;
640
641 if (wrqu->retry.flags & IW_RETRY_MAX) {
642 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
643 wrqu->retry.value = priv->retry_rts;
644 } else {
645 wrqu->retry.flags = IW_RETRY_LIMIT | IW_RETRY_MIN;
646 wrqu->retry.value = priv->retry_data;
647 }
648 return 0;
649 }
650
_rtl92e_wx_set_encode_ext(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)651 static int _rtl92e_wx_set_encode_ext(struct net_device *dev,
652 struct iw_request_info *info,
653 union iwreq_data *wrqu, char *extra)
654 {
655 int ret = 0;
656 struct r8192_priv *priv = rtllib_priv(dev);
657 struct rtllib_device *ieee = priv->rtllib;
658
659 if (priv->hw_radio_off)
660 return 0;
661
662 mutex_lock(&priv->wx_mutex);
663
664 priv->rtllib->wx_set_enc = 1;
665 mutex_lock(&priv->rtllib->ips_mutex);
666 rtl92e_ips_leave(dev);
667 mutex_unlock(&priv->rtllib->ips_mutex);
668
669 ret = rtllib_wx_set_encode_ext(ieee, info, wrqu, extra);
670 {
671 const u8 broadcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
672 const u8 zero[ETH_ALEN] = {0};
673 u32 key[4] = {0};
674 struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
675 struct iw_point *encoding = &wrqu->encoding;
676 u8 idx = 0, alg = 0, group = 0;
677
678 if ((encoding->flags & IW_ENCODE_DISABLED) ||
679 ext->alg == IW_ENCODE_ALG_NONE) {
680 ieee->pairwise_key_type = KEY_TYPE_NA;
681 ieee->group_key_type = KEY_TYPE_NA;
682 rtl92e_cam_reset(dev);
683 memset(priv->rtllib->swcamtable, 0,
684 sizeof(struct sw_cam_table) * 32);
685 goto end_hw_sec;
686 }
687 alg = (ext->alg == IW_ENCODE_ALG_CCMP) ? KEY_TYPE_CCMP :
688 ext->alg;
689 idx = encoding->flags & IW_ENCODE_INDEX;
690 if (idx)
691 idx--;
692 group = ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY;
693
694 if ((!group) || (alg == KEY_TYPE_WEP40)) {
695 if ((ext->key_len == 13) && (alg == KEY_TYPE_WEP40))
696 alg = KEY_TYPE_WEP104;
697 ieee->pairwise_key_type = alg;
698 rtl92e_enable_hw_security_config(dev);
699 }
700 memcpy((u8 *)key, ext->key, 16);
701
702 if ((alg & KEY_TYPE_WEP40) && (ieee->auth_mode != 2)) {
703 if (ext->key_len == 13)
704 ieee->pairwise_key_type = alg = KEY_TYPE_WEP104;
705 rtl92e_set_key(dev, idx, idx, alg, zero, 0, key);
706 rtl92e_set_swcam(dev, idx, idx, alg, zero, key);
707 } else if (group) {
708 ieee->group_key_type = alg;
709 rtl92e_set_key(dev, idx, idx, alg, broadcast_addr, 0,
710 key);
711 rtl92e_set_swcam(dev, idx, idx, alg, broadcast_addr, key);
712 } else {
713 if ((ieee->pairwise_key_type == KEY_TYPE_CCMP) &&
714 ieee->ht_info->current_ht_support)
715 rtl92e_writeb(dev, 0x173, 1);
716 rtl92e_set_key(dev, 4, idx, alg,
717 (u8 *)ieee->ap_mac_addr, 0, key);
718 rtl92e_set_swcam(dev, 4, idx, alg, (u8 *)ieee->ap_mac_addr, key);
719 }
720 }
721
722 end_hw_sec:
723 priv->rtllib->wx_set_enc = 0;
724 mutex_unlock(&priv->wx_mutex);
725 return ret;
726 }
727
_rtl92e_wx_set_auth(struct net_device * dev,struct iw_request_info * info,union iwreq_data * data,char * extra)728 static int _rtl92e_wx_set_auth(struct net_device *dev,
729 struct iw_request_info *info,
730 union iwreq_data *data, char *extra)
731 {
732 int ret = 0;
733
734 struct r8192_priv *priv = rtllib_priv(dev);
735
736 if (priv->hw_radio_off)
737 return 0;
738
739 mutex_lock(&priv->wx_mutex);
740 ret = rtllib_wx_set_auth(priv->rtllib, info, &data->param, extra);
741 mutex_unlock(&priv->wx_mutex);
742 return ret;
743 }
744
_rtl92e_wx_set_mlme(struct net_device * dev,struct iw_request_info * info,union iwreq_data * wrqu,char * extra)745 static int _rtl92e_wx_set_mlme(struct net_device *dev,
746 struct iw_request_info *info,
747 union iwreq_data *wrqu, char *extra)
748 {
749 int ret = 0;
750
751 struct r8192_priv *priv = rtllib_priv(dev);
752
753 if (priv->hw_radio_off)
754 return 0;
755
756 mutex_lock(&priv->wx_mutex);
757 ret = rtllib_wx_set_mlme(priv->rtllib, info, wrqu, extra);
758 mutex_unlock(&priv->wx_mutex);
759 return ret;
760 }
761
_rtl92e_wx_set_gen_ie(struct net_device * dev,struct iw_request_info * info,union iwreq_data * data,char * extra)762 static int _rtl92e_wx_set_gen_ie(struct net_device *dev,
763 struct iw_request_info *info,
764 union iwreq_data *data, char *extra)
765 {
766 int ret = 0;
767
768 struct r8192_priv *priv = rtllib_priv(dev);
769
770 if (priv->hw_radio_off)
771 return 0;
772
773 mutex_lock(&priv->wx_mutex);
774 ret = rtllib_wx_set_gen_ie(priv->rtllib, extra, data->data.length);
775 mutex_unlock(&priv->wx_mutex);
776 return ret;
777 }
778
_rtl92e_wx_get_gen_ie(struct net_device * dev,struct iw_request_info * info,union iwreq_data * data,char * extra)779 static int _rtl92e_wx_get_gen_ie(struct net_device *dev,
780 struct iw_request_info *info,
781 union iwreq_data *data, char *extra)
782 {
783 int ret = 0;
784 struct r8192_priv *priv = rtllib_priv(dev);
785 struct rtllib_device *ieee = priv->rtllib;
786
787 if (ieee->wpa_ie_len == 0 || !ieee->wpa_ie) {
788 data->data.length = 0;
789 return 0;
790 }
791
792 if (data->data.length < ieee->wpa_ie_len)
793 return -E2BIG;
794
795 data->data.length = ieee->wpa_ie_len;
796 memcpy(extra, ieee->wpa_ie, ieee->wpa_ie_len);
797 return ret;
798 }
799
800 #define IW_IOCTL(x) ((x) - SIOCSIWCOMMIT)
801 static iw_handler r8192_wx_handlers[] = {
802 [IW_IOCTL(SIOCGIWNAME)] = _rtl92e_wx_get_name,
803 [IW_IOCTL(SIOCSIWFREQ)] = _rtl92e_wx_set_freq,
804 [IW_IOCTL(SIOCGIWFREQ)] = _rtl92e_wx_get_freq,
805 [IW_IOCTL(SIOCSIWMODE)] = _rtl92e_wx_set_mode,
806 [IW_IOCTL(SIOCGIWMODE)] = _rtl92e_wx_get_mode,
807 [IW_IOCTL(SIOCGIWRANGE)] = _rtl92e_wx_get_range,
808 [IW_IOCTL(SIOCSIWAP)] = _rtl92e_wx_set_wap,
809 [IW_IOCTL(SIOCGIWAP)] = _rtl92e_wx_get_wap,
810 [IW_IOCTL(SIOCSIWSCAN)] = _rtl92e_wx_set_scan,
811 [IW_IOCTL(SIOCGIWSCAN)] = _rtl92e_wx_get_scan,
812 [IW_IOCTL(SIOCSIWESSID)] = _rtl92e_wx_set_essid,
813 [IW_IOCTL(SIOCGIWESSID)] = _rtl92e_wx_get_essid,
814 [IW_IOCTL(SIOCSIWNICKN)] = _rtl92e_wx_set_nick,
815 [IW_IOCTL(SIOCGIWNICKN)] = _rtl92e_wx_get_nick,
816 [IW_IOCTL(SIOCSIWRATE)] = _rtl92e_wx_set_rate,
817 [IW_IOCTL(SIOCGIWRATE)] = _rtl92e_wx_get_rate,
818 [IW_IOCTL(SIOCSIWRTS)] = _rtl92e_wx_set_rts,
819 [IW_IOCTL(SIOCGIWRTS)] = _rtl92e_wx_get_rts,
820 [IW_IOCTL(SIOCSIWFRAG)] = _rtl92e_wx_set_frag,
821 [IW_IOCTL(SIOCGIWFRAG)] = _rtl92e_wx_get_frag,
822 [IW_IOCTL(SIOCSIWRETRY)] = _rtl92e_wx_set_retry,
823 [IW_IOCTL(SIOCGIWRETRY)] = _rtl92e_wx_get_retry,
824 [IW_IOCTL(SIOCSIWENCODE)] = _rtl92e_wx_set_enc,
825 [IW_IOCTL(SIOCGIWENCODE)] = _rtl92e_wx_get_enc,
826 [IW_IOCTL(SIOCSIWPOWER)] = _rtl92e_wx_set_power,
827 [IW_IOCTL(SIOCGIWPOWER)] = _rtl92e_wx_get_power,
828 [IW_IOCTL(SIOCSIWGENIE)] = _rtl92e_wx_set_gen_ie,
829 [IW_IOCTL(SIOCGIWGENIE)] = _rtl92e_wx_get_gen_ie,
830 [IW_IOCTL(SIOCSIWMLME)] = _rtl92e_wx_set_mlme,
831 [IW_IOCTL(SIOCSIWAUTH)] = _rtl92e_wx_set_auth,
832 [IW_IOCTL(SIOCSIWENCODEEXT)] = _rtl92e_wx_set_encode_ext,
833 };
834
_rtl92e_get_wireless_stats(struct net_device * dev)835 static struct iw_statistics *_rtl92e_get_wireless_stats(struct net_device *dev)
836 {
837 struct r8192_priv *priv = rtllib_priv(dev);
838 struct rtllib_device *ieee = priv->rtllib;
839 struct iw_statistics *wstats = &priv->wstats;
840 int tmp_level = 0;
841 int tmp_qual = 0;
842 int tmp_noise = 0;
843
844 if (ieee->link_state < MAC80211_LINKED) {
845 wstats->qual.qual = 10;
846 wstats->qual.level = 0;
847 wstats->qual.noise = 0x100 - 100; /* -100 dBm */
848 wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
849 return wstats;
850 }
851
852 tmp_level = (&ieee->current_network)->stats.rssi;
853 tmp_qual = (&ieee->current_network)->stats.signal;
854 tmp_noise = (&ieee->current_network)->stats.noise;
855
856 wstats->qual.level = tmp_level;
857 wstats->qual.qual = tmp_qual;
858 wstats->qual.noise = tmp_noise;
859 wstats->qual.updated = IW_QUAL_ALL_UPDATED | IW_QUAL_DBM;
860 return wstats;
861 }
862
863 const struct iw_handler_def r8192_wx_handlers_def = {
864 .standard = r8192_wx_handlers,
865 .num_standard = ARRAY_SIZE(r8192_wx_handlers),
866 .get_wireless_stats = _rtl92e_get_wireless_stats,
867 };
868