1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
3 *
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
5 *
6 ******************************************************************************/
7 #define _IEEE80211_C
8
9 #include <drv_types.h>
10 #include <rtw_debug.h>
11 #include <linux/of.h>
12 #include <asm/unaligned.h>
13
14 u8 RTW_WPA_OUI_TYPE[] = { 0x00, 0x50, 0xf2, 1 };
15 u16 RTW_WPA_VERSION = 1;
16 u8 WPA_AUTH_KEY_MGMT_NONE[] = { 0x00, 0x50, 0xf2, 0 };
17 u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x50, 0xf2, 1 };
18 u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x50, 0xf2, 2 };
19 u8 WPA_CIPHER_SUITE_NONE[] = { 0x00, 0x50, 0xf2, 0 };
20 u8 WPA_CIPHER_SUITE_WEP40[] = { 0x00, 0x50, 0xf2, 1 };
21 u8 WPA_CIPHER_SUITE_TKIP[] = { 0x00, 0x50, 0xf2, 2 };
22 u8 WPA_CIPHER_SUITE_WRAP[] = { 0x00, 0x50, 0xf2, 3 };
23 u8 WPA_CIPHER_SUITE_CCMP[] = { 0x00, 0x50, 0xf2, 4 };
24 u8 WPA_CIPHER_SUITE_WEP104[] = { 0x00, 0x50, 0xf2, 5 };
25
26 u16 RSN_VERSION_BSD = 1;
27 u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x0f, 0xac, 1 };
28 u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x0f, 0xac, 2 };
29 u8 RSN_CIPHER_SUITE_NONE[] = { 0x00, 0x0f, 0xac, 0 };
30 u8 RSN_CIPHER_SUITE_WEP40[] = { 0x00, 0x0f, 0xac, 1 };
31 u8 RSN_CIPHER_SUITE_TKIP[] = { 0x00, 0x0f, 0xac, 2 };
32 u8 RSN_CIPHER_SUITE_WRAP[] = { 0x00, 0x0f, 0xac, 3 };
33 u8 RSN_CIPHER_SUITE_CCMP[] = { 0x00, 0x0f, 0xac, 4 };
34 u8 RSN_CIPHER_SUITE_WEP104[] = { 0x00, 0x0f, 0xac, 5 };
35 /* */
36 /* for adhoc-master to generate ie and provide supported-rate to fw */
37 /* */
38
39 static u8 WIFI_CCKRATES[] = {
40 (IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK),
41 (IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK),
42 (IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK),
43 (IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK)
44 };
45
46 static u8 WIFI_OFDMRATES[] = {
47 (IEEE80211_OFDM_RATE_6MB),
48 (IEEE80211_OFDM_RATE_9MB),
49 (IEEE80211_OFDM_RATE_12MB),
50 (IEEE80211_OFDM_RATE_18MB),
51 (IEEE80211_OFDM_RATE_24MB),
52 IEEE80211_OFDM_RATE_36MB,
53 IEEE80211_OFDM_RATE_48MB,
54 IEEE80211_OFDM_RATE_54MB
55 };
56
rtw_get_bit_value_from_ieee_value(u8 val)57 int rtw_get_bit_value_from_ieee_value(u8 val)
58 {
59 unsigned char dot11_rate_table[] = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; /* last element must be zero!! */
60 int i = 0;
61
62 while (dot11_rate_table[i] != 0) {
63 if (dot11_rate_table[i] == val)
64 return BIT(i);
65 i++;
66 }
67 return 0;
68 }
69
rtw_is_cckrates_included(u8 * rate)70 bool rtw_is_cckrates_included(u8 *rate)
71 {
72 while (*rate) {
73 u8 r = *rate & 0x7f;
74
75 if (r == 2 || r == 4 || r == 11 || r == 22)
76 return true;
77 rate++;
78 }
79
80 return false;
81 }
82
rtw_is_cckratesonly_included(u8 * rate)83 bool rtw_is_cckratesonly_included(u8 *rate)
84 {
85 while (*rate) {
86 u8 r = *rate & 0x7f;
87
88 if (r != 2 && r != 4 && r != 11 && r != 22)
89 return false;
90 rate++;
91 }
92
93 return true;
94 }
95
rtw_check_network_type(unsigned char * rate,int ratelen,int channel)96 int rtw_check_network_type(unsigned char *rate, int ratelen, int channel)
97 {
98 if (channel > 14) {
99 if (rtw_is_cckrates_included(rate))
100 return WIRELESS_INVALID;
101 else
102 return WIRELESS_11A;
103 } else { /* could be pure B, pure G, or B/G */
104 if (rtw_is_cckratesonly_included(rate))
105 return WIRELESS_11B;
106 else if (rtw_is_cckrates_included(rate))
107 return WIRELESS_11BG;
108 else
109 return WIRELESS_11G;
110 }
111 }
112
rtw_set_fixed_ie(unsigned char * pbuf,unsigned int len,unsigned char * source,unsigned int * frlen)113 u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len, unsigned char *source,
114 unsigned int *frlen)
115 {
116 memcpy((void *)pbuf, (void *)source, len);
117 *frlen = *frlen + len;
118 return pbuf + len;
119 }
120
121 /* rtw_set_ie will update frame length */
rtw_set_ie(u8 * pbuf,sint index,uint len,u8 * source,uint * frlen)122 u8 *rtw_set_ie
123 (
124 u8 *pbuf,
125 sint index,
126 uint len,
127 u8 *source,
128 uint *frlen /* frame length */
129 )
130 {
131 *pbuf = (u8)index;
132
133 *(pbuf + 1) = (u8)len;
134
135 if (len > 0)
136 memcpy((void *)(pbuf + 2), (void *)source, len);
137
138 *frlen = *frlen + (len + 2);
139
140 return pbuf + len + 2;
141 }
142
143 /*----------------------------------------------------------------------------
144 index: the information element id index, limit is the limit for search
145 -----------------------------------------------------------------------------*/
rtw_get_ie(u8 * pbuf,sint index,sint * len,sint limit)146 u8 *rtw_get_ie(u8 *pbuf, sint index, sint *len, sint limit)
147 {
148 sint tmp, i;
149 u8 *p;
150
151 if (limit < 1)
152 return NULL;
153
154 p = pbuf;
155 i = 0;
156 *len = 0;
157 while (1) {
158 if (*p == index) {
159 *len = *(p + 1);
160 return p;
161 } else {
162 tmp = *(p + 1);
163 p += (tmp + 2);
164 i += (tmp + 2);
165 }
166 if (i >= limit)
167 break;
168 }
169 return NULL;
170 }
171
172 /**
173 * rtw_get_ie_ex - Search specific IE from a series of IEs
174 * @in_ie: Address of IEs to search
175 * @in_len: Length limit from in_ie
176 * @eid: Element ID to match
177 * @oui: OUI to match
178 * @oui_len: OUI length
179 * @ie: If not NULL and the specific IE is found, the IE will be copied to the buf starting from the specific IE
180 * @ielen: If not NULL and the specific IE is found, will set to the length of the entire IE
181 *
182 * Returns: The address of the specific IE found, or NULL
183 */
rtw_get_ie_ex(u8 * in_ie,uint in_len,u8 eid,u8 * oui,u8 oui_len,u8 * ie,uint * ielen)184 u8 *rtw_get_ie_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen)
185 {
186 uint cnt;
187 u8 *target_ie = NULL;
188
189 if (ielen)
190 *ielen = 0;
191
192 if (!in_ie || in_len <= 0)
193 return target_ie;
194
195 cnt = 0;
196
197 while (cnt < in_len) {
198 if (eid == in_ie[cnt]
199 && (!oui || !memcmp(&in_ie[cnt+2], oui, oui_len))) {
200 target_ie = &in_ie[cnt];
201
202 if (ie)
203 memcpy(ie, &in_ie[cnt], in_ie[cnt+1]+2);
204
205 if (ielen)
206 *ielen = in_ie[cnt+1]+2;
207
208 break;
209 } else {
210 cnt += in_ie[cnt+1]+2; /* goto next */
211 }
212 }
213
214 return target_ie;
215 }
216
217 /**
218 * rtw_ies_remove_ie - Find matching IEs and remove
219 * @ies: Address of IEs to search
220 * @ies_len: Pointer of length of ies, will update to new length
221 * @offset: The offset to start search
222 * @eid: Element ID to match
223 * @oui: OUI to match
224 * @oui_len: OUI length
225 *
226 * Returns: _SUCCESS: ies is updated, _FAIL: not updated
227 */
rtw_ies_remove_ie(u8 * ies,uint * ies_len,uint offset,u8 eid,u8 * oui,u8 oui_len)228 int rtw_ies_remove_ie(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len)
229 {
230 int ret = _FAIL;
231 u8 *target_ie;
232 u32 target_ielen;
233 u8 *start;
234 uint search_len;
235
236 if (!ies || !ies_len || *ies_len <= offset)
237 goto exit;
238
239 start = ies + offset;
240 search_len = *ies_len - offset;
241
242 while (1) {
243 target_ie = rtw_get_ie_ex(start, search_len, eid, oui, oui_len, NULL, &target_ielen);
244 if (target_ie && target_ielen) {
245 u8 buf[MAX_IE_SZ] = {0};
246 u8 *remain_ies = target_ie + target_ielen;
247 uint remain_len = search_len - (remain_ies - start);
248
249 memcpy(buf, remain_ies, remain_len);
250 memcpy(target_ie, buf, remain_len);
251 *ies_len = *ies_len - target_ielen;
252 ret = _SUCCESS;
253
254 start = target_ie;
255 search_len = remain_len;
256 } else {
257 break;
258 }
259 }
260 exit:
261 return ret;
262 }
263
rtw_set_supported_rate(u8 * SupportedRates,uint mode)264 void rtw_set_supported_rate(u8 *SupportedRates, uint mode)
265 {
266 memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX);
267
268 switch (mode) {
269 case WIRELESS_11B:
270 memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
271 break;
272
273 case WIRELESS_11G:
274 case WIRELESS_11A:
275 case WIRELESS_11_5N:
276 case WIRELESS_11A_5N:/* Todo: no basic rate for ofdm ? */
277 case WIRELESS_11_5AC:
278 memcpy(SupportedRates, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
279 break;
280
281 case WIRELESS_11BG:
282 case WIRELESS_11G_24N:
283 case WIRELESS_11_24N:
284 case WIRELESS_11BG_24N:
285 memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
286 memcpy(SupportedRates + IEEE80211_CCK_RATE_LEN, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
287 break;
288 }
289 }
290
rtw_get_rateset_len(u8 * rateset)291 uint rtw_get_rateset_len(u8 *rateset)
292 {
293 uint i;
294
295 for (i = 0; i < 13; i++)
296 if (rateset[i] == 0)
297 break;
298 return i;
299 }
300
rtw_generate_ie(struct registry_priv * pregistrypriv)301 int rtw_generate_ie(struct registry_priv *pregistrypriv)
302 {
303 u8 wireless_mode;
304 int sz = 0, rateLen;
305 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
306 u8 *ie = pdev_network->IEs;
307
308 /* timestamp will be inserted by hardware */
309 sz += 8;
310 ie += sz;
311
312 /* beacon interval : 2bytes */
313 *(__le16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod);/* BCN_INTERVAL; */
314 sz += 2;
315 ie += 2;
316
317 /* capability info */
318 *(u16 *)ie = 0;
319
320 *(__le16 *)ie |= cpu_to_le16(cap_IBSS);
321
322 if (pregistrypriv->preamble == PREAMBLE_SHORT)
323 *(__le16 *)ie |= cpu_to_le16(cap_ShortPremble);
324
325 if (pdev_network->Privacy)
326 *(__le16 *)ie |= cpu_to_le16(cap_Privacy);
327
328 sz += 2;
329 ie += 2;
330
331 /* SSID */
332 ie = rtw_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, pdev_network->Ssid.Ssid, &sz);
333
334 /* supported rates */
335 if (pregistrypriv->wireless_mode == WIRELESS_11ABGN) {
336 if (pdev_network->Configuration.DSConfig > 14)
337 wireless_mode = WIRELESS_11A_5N;
338 else
339 wireless_mode = WIRELESS_11BG_24N;
340 } else {
341 wireless_mode = pregistrypriv->wireless_mode;
342 }
343
344 rtw_set_supported_rate(pdev_network->SupportedRates, wireless_mode);
345
346 rateLen = rtw_get_rateset_len(pdev_network->SupportedRates);
347
348 if (rateLen > 8) {
349 ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, 8, pdev_network->SupportedRates, &sz);
350 /* ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); */
351 } else {
352 ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, rateLen, pdev_network->SupportedRates, &sz);
353 }
354
355 /* DS parameter set */
356 ie = rtw_set_ie(ie, _DSSET_IE_, 1, (u8 *)&(pdev_network->Configuration.DSConfig), &sz);
357
358 /* IBSS Parameter Set */
359
360 ie = rtw_set_ie(ie, _IBSS_PARA_IE_, 2, (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz);
361
362 if (rateLen > 8) {
363 ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz);
364 }
365
366 /* HT Cap. */
367 if (((pregistrypriv->wireless_mode&WIRELESS_11_5N) || (pregistrypriv->wireless_mode&WIRELESS_11_24N))
368 && (pregistrypriv->ht_enable == true)) {
369 /* todo: */
370 }
371
372 /* pdev_network->IELength = sz; update IELength */
373
374 /* return _SUCCESS; */
375
376 return sz;
377 }
378
rtw_get_wpa_ie(unsigned char * pie,int * wpa_ie_len,int limit)379 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
380 {
381 int len;
382 u16 val16;
383 unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
384 u8 *pbuf = pie;
385 int limit_new = limit;
386 __le16 le_tmp;
387
388 while (1) {
389 pbuf = rtw_get_ie(pbuf, _WPA_IE_ID_, &len, limit_new);
390
391 if (pbuf) {
392 /* check if oui matches... */
393 if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type))) {
394 goto check_next_ie;
395 }
396
397 /* check version... */
398 memcpy((u8 *)&le_tmp, (pbuf + 6), sizeof(val16));
399
400 val16 = le16_to_cpu(le_tmp);
401 if (val16 != 0x0001)
402 goto check_next_ie;
403
404 *wpa_ie_len = *(pbuf + 1);
405
406 return pbuf;
407
408 } else {
409 *wpa_ie_len = 0;
410 return NULL;
411 }
412
413 check_next_ie:
414
415 limit_new = limit - (pbuf - pie) - 2 - len;
416
417 if (limit_new <= 0)
418 break;
419
420 pbuf += (2 + len);
421 }
422
423 *wpa_ie_len = 0;
424
425 return NULL;
426 }
427
rtw_get_wpa2_ie(unsigned char * pie,int * rsn_ie_len,int limit)428 unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
429 {
430 return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
431 }
432
rtw_get_wpa_cipher_suite(u8 * s)433 int rtw_get_wpa_cipher_suite(u8 *s)
434 {
435 if (!memcmp(s, WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN))
436 return WPA_CIPHER_NONE;
437 if (!memcmp(s, WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN))
438 return WPA_CIPHER_WEP40;
439 if (!memcmp(s, WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN))
440 return WPA_CIPHER_TKIP;
441 if (!memcmp(s, WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN))
442 return WPA_CIPHER_CCMP;
443 if (!memcmp(s, WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN))
444 return WPA_CIPHER_WEP104;
445
446 return 0;
447 }
448
rtw_get_wpa2_cipher_suite(u8 * s)449 int rtw_get_wpa2_cipher_suite(u8 *s)
450 {
451 if (!memcmp(s, RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN))
452 return WPA_CIPHER_NONE;
453 if (!memcmp(s, RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN))
454 return WPA_CIPHER_WEP40;
455 if (!memcmp(s, RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN))
456 return WPA_CIPHER_TKIP;
457 if (!memcmp(s, RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN))
458 return WPA_CIPHER_CCMP;
459 if (!memcmp(s, RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN))
460 return WPA_CIPHER_WEP104;
461
462 return 0;
463 }
464
rtw_parse_wpa_ie(u8 * wpa_ie,int wpa_ie_len,int * group_cipher,int * pairwise_cipher,int * is_8021x)465 int rtw_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
466 {
467 int i, ret = _SUCCESS;
468 int left, count;
469 u8 *pos;
470 u8 SUITE_1X[4] = {0x00, 0x50, 0xf2, 1};
471
472 if (wpa_ie_len <= 0) {
473 /* No WPA IE - fail silently */
474 return _FAIL;
475 }
476
477 if ((*wpa_ie != _WPA_IE_ID_) || (*(wpa_ie+1) != (u8)(wpa_ie_len - 2)) ||
478 (memcmp(wpa_ie+2, RTW_WPA_OUI_TYPE, WPA_SELECTOR_LEN))) {
479 return _FAIL;
480 }
481
482 pos = wpa_ie;
483
484 pos += 8;
485 left = wpa_ie_len - 8;
486
487 /* group_cipher */
488 if (left >= WPA_SELECTOR_LEN) {
489 *group_cipher = rtw_get_wpa_cipher_suite(pos);
490
491 pos += WPA_SELECTOR_LEN;
492 left -= WPA_SELECTOR_LEN;
493
494 } else if (left > 0) {
495 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
496
497 return _FAIL;
498 }
499
500 /* pairwise_cipher */
501 if (left >= 2) {
502 /* count = le16_to_cpu(*(u16*)pos); */
503 count = get_unaligned_le16(pos);
504 pos += 2;
505 left -= 2;
506
507 if (count == 0 || left < count * WPA_SELECTOR_LEN) {
508 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
509 "count %u left %u", __func__, count, left));
510 return _FAIL;
511 }
512
513 for (i = 0; i < count; i++) {
514 *pairwise_cipher |= rtw_get_wpa_cipher_suite(pos);
515
516 pos += WPA_SELECTOR_LEN;
517 left -= WPA_SELECTOR_LEN;
518 }
519
520 } else if (left == 1) {
521 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
522 return _FAIL;
523 }
524
525 if (is_8021x) {
526 if (left >= 6) {
527 pos += 2;
528 if (!memcmp(pos, SUITE_1X, 4)) {
529 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s : there has 802.1x auth\n", __func__));
530 *is_8021x = 1;
531 }
532 }
533 }
534
535 return ret;
536 }
537
rtw_parse_wpa2_ie(u8 * rsn_ie,int rsn_ie_len,int * group_cipher,int * pairwise_cipher,int * is_8021x)538 int rtw_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
539 {
540 int i, ret = _SUCCESS;
541 int left, count;
542 u8 *pos;
543 u8 SUITE_1X[4] = {0x00, 0x0f, 0xac, 0x01};
544
545 if (rsn_ie_len <= 0) {
546 /* No RSN IE - fail silently */
547 return _FAIL;
548 }
549
550 if ((*rsn_ie != _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2))) {
551 return _FAIL;
552 }
553
554 pos = rsn_ie;
555 pos += 4;
556 left = rsn_ie_len - 4;
557
558 /* group_cipher */
559 if (left >= RSN_SELECTOR_LEN) {
560 *group_cipher = rtw_get_wpa2_cipher_suite(pos);
561
562 pos += RSN_SELECTOR_LEN;
563 left -= RSN_SELECTOR_LEN;
564
565 } else if (left > 0) {
566 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
567 return _FAIL;
568 }
569
570 /* pairwise_cipher */
571 if (left >= 2) {
572 /* count = le16_to_cpu(*(u16*)pos); */
573 count = get_unaligned_le16(pos);
574 pos += 2;
575 left -= 2;
576
577 if (count == 0 || left < count * RSN_SELECTOR_LEN) {
578 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
579 "count %u left %u", __func__, count, left));
580 return _FAIL;
581 }
582
583 for (i = 0; i < count; i++) {
584 *pairwise_cipher |= rtw_get_wpa2_cipher_suite(pos);
585
586 pos += RSN_SELECTOR_LEN;
587 left -= RSN_SELECTOR_LEN;
588 }
589
590 } else if (left == 1) {
591 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
592
593 return _FAIL;
594 }
595
596 if (is_8021x) {
597 if (left >= 6) {
598 pos += 2;
599 if (!memcmp(pos, SUITE_1X, 4)) {
600 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s (): there has 802.1x auth\n", __func__));
601 *is_8021x = 1;
602 }
603 }
604 }
605
606 return ret;
607 }
608
609 /* ifdef CONFIG_WAPI_SUPPORT */
rtw_get_wapi_ie(u8 * in_ie,uint in_len,u8 * wapi_ie,u16 * wapi_len)610 int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len)
611 {
612 int len = 0;
613 u8 authmode, i;
614 uint cnt;
615 u8 wapi_oui1[4] = {0x0, 0x14, 0x72, 0x01};
616 u8 wapi_oui2[4] = {0x0, 0x14, 0x72, 0x02};
617
618 if (wapi_len)
619 *wapi_len = 0;
620
621 if (!in_ie || in_len <= 0)
622 return len;
623
624 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
625
626 while (cnt < in_len) {
627 authmode = in_ie[cnt];
628
629 /* if (authmode == _WAPI_IE_) */
630 if (authmode == _WAPI_IE_ && (!memcmp(&in_ie[cnt+6], wapi_oui1, 4) ||
631 !memcmp(&in_ie[cnt+6], wapi_oui2, 4))) {
632 if (wapi_ie) {
633 memcpy(wapi_ie, &in_ie[cnt], in_ie[cnt+1]+2);
634
635 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
636 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
637 wapi_ie[i], wapi_ie[i+1], wapi_ie[i+2], wapi_ie[i+3], wapi_ie[i+4],
638 wapi_ie[i+5], wapi_ie[i+6], wapi_ie[i+7]));
639 }
640 }
641
642 if (wapi_len)
643 *wapi_len = in_ie[cnt+1]+2;
644
645 cnt += in_ie[cnt+1]+2; /* get next */
646 } else {
647 cnt += in_ie[cnt+1]+2; /* get next */
648 }
649 }
650
651 if (wapi_len)
652 len = *wapi_len;
653
654 return len;
655 }
656 /* endif */
657
rtw_get_sec_ie(u8 * in_ie,uint in_len,u8 * rsn_ie,u16 * rsn_len,u8 * wpa_ie,u16 * wpa_len)658 void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len)
659 {
660 u8 authmode, sec_idx, i;
661 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
662 uint cnt;
663
664 /* Search required WPA or WPA2 IE and copy to sec_ie[ ] */
665
666 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
667
668 sec_idx = 0;
669
670 while (cnt < in_len) {
671 authmode = in_ie[cnt];
672
673 if ((authmode == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) {
674 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n rtw_get_wpa_ie: sec_idx =%d in_ie[cnt+1]+2 =%d\n", sec_idx, in_ie[cnt+1]+2));
675
676 if (wpa_ie) {
677 memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt+1]+2);
678
679 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
680 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
681 wpa_ie[i], wpa_ie[i+1], wpa_ie[i+2], wpa_ie[i+3], wpa_ie[i+4],
682 wpa_ie[i+5], wpa_ie[i+6], wpa_ie[i+7]));
683 }
684 }
685
686 *wpa_len = in_ie[cnt+1]+2;
687 cnt += in_ie[cnt+1]+2; /* get next */
688 } else {
689 if (authmode == _WPA2_IE_ID_) {
690 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n get_rsn_ie: sec_idx =%d in_ie[cnt+1]+2 =%d\n", sec_idx, in_ie[cnt+1]+2));
691
692 if (rsn_ie) {
693 memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt+1]+2);
694
695 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
696 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
697 rsn_ie[i], rsn_ie[i+1], rsn_ie[i+2], rsn_ie[i+3], rsn_ie[i+4],
698 rsn_ie[i+5], rsn_ie[i+6], rsn_ie[i+7]));
699 }
700 }
701
702 *rsn_len = in_ie[cnt+1]+2;
703 cnt += in_ie[cnt+1]+2; /* get next */
704 } else {
705 cnt += in_ie[cnt+1]+2; /* get next */
706 }
707 }
708 }
709 }
710
rtw_is_wps_ie(u8 * ie_ptr,uint * wps_ielen)711 u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen)
712 {
713 u8 match = false;
714 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
715
716 if (!ie_ptr)
717 return match;
718
719 eid = ie_ptr[0];
720
721 if ((eid == _WPA_IE_ID_) && (!memcmp(&ie_ptr[2], wps_oui, 4))) {
722 /* DBG_8192C("==> found WPS_IE.....\n"); */
723 *wps_ielen = ie_ptr[1]+2;
724 match = true;
725 }
726 return match;
727 }
728
729 /**
730 * rtw_get_wps_ie - Search WPS IE from a series of IEs
731 * @in_ie: Address of IEs to search
732 * @in_len: Length limit from in_ie
733 * @wps_ie: If not NULL and WPS IE is found, WPS IE will be copied to the buf starting from wps_ie
734 * @wps_ielen: If not NULL and WPS IE is found, will set to the length of the entire WPS IE
735 *
736 * Returns: The address of the WPS IE found, or NULL
737 */
rtw_get_wps_ie(u8 * in_ie,uint in_len,u8 * wps_ie,uint * wps_ielen)738 u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen)
739 {
740 uint cnt;
741 u8 *wpsie_ptr = NULL;
742 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
743
744 if (wps_ielen)
745 *wps_ielen = 0;
746
747 if (!in_ie || in_len <= 0)
748 return wpsie_ptr;
749
750 cnt = 0;
751
752 while (cnt < in_len) {
753 eid = in_ie[cnt];
754
755 if ((eid == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], wps_oui, 4))) {
756 wpsie_ptr = &in_ie[cnt];
757
758 if (wps_ie)
759 memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2);
760
761 if (wps_ielen)
762 *wps_ielen = in_ie[cnt+1]+2;
763
764 cnt += in_ie[cnt+1]+2;
765
766 break;
767 } else {
768 cnt += in_ie[cnt+1]+2; /* goto next */
769 }
770 }
771
772 return wpsie_ptr;
773 }
774
775 /**
776 * rtw_get_wps_attr - Search a specific WPS attribute from a given WPS IE
777 * @wps_ie: Address of WPS IE to search
778 * @wps_ielen: Length limit from wps_ie
779 * @target_attr_id: The attribute ID of WPS attribute to search
780 * @buf_attr: If not NULL and the WPS attribute is found, WPS attribute will be copied to the buf starting from buf_attr
781 * @len_attr: If not NULL and the WPS attribute is found, will set to the length of the entire WPS attribute
782 *
783 * Returns: the address of the specific WPS attribute found, or NULL
784 */
rtw_get_wps_attr(u8 * wps_ie,uint wps_ielen,u16 target_attr_id,u8 * buf_attr,u32 * len_attr)785 u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_attr, u32 *len_attr)
786 {
787 u8 *attr_ptr = NULL;
788 u8 *target_attr_ptr = NULL;
789 u8 wps_oui[4] = {0x00, 0x50, 0xF2, 0x04};
790
791 if (len_attr)
792 *len_attr = 0;
793
794 if ((wps_ie[0] != _VENDOR_SPECIFIC_IE_) ||
795 (memcmp(wps_ie + 2, wps_oui, 4))) {
796 return attr_ptr;
797 }
798
799 /* 6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */
800 attr_ptr = wps_ie + 6; /* goto first attr */
801
802 while (attr_ptr - wps_ie < wps_ielen) {
803 /* 4 = 2(Attribute ID) + 2(Length) */
804 u16 attr_id = get_unaligned_be16(attr_ptr);
805 u16 attr_data_len = get_unaligned_be16(attr_ptr + 2);
806 u16 attr_len = attr_data_len + 4;
807
808 /* DBG_871X("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); */
809 if (attr_id == target_attr_id) {
810 target_attr_ptr = attr_ptr;
811
812 if (buf_attr)
813 memcpy(buf_attr, attr_ptr, attr_len);
814
815 if (len_attr)
816 *len_attr = attr_len;
817
818 break;
819 } else {
820 attr_ptr += attr_len; /* goto next */
821 }
822 }
823
824 return target_attr_ptr;
825 }
826
827 /**
828 * rtw_get_wps_attr_content - Search a specific WPS attribute content from a given WPS IE
829 * @wps_ie: Address of WPS IE to search
830 * @wps_ielen: Length limit from wps_ie
831 * @target_attr_id: The attribute ID of WPS attribute to search
832 * @buf_content: If not NULL and the WPS attribute is found, WPS attribute content will be copied to the buf starting from buf_content
833 * @len_content: If not NULL and the WPS attribute is found, will set to the length of the WPS attribute content
834 *
835 * Returns: the address of the specific WPS attribute content found, or NULL
836 */
rtw_get_wps_attr_content(u8 * wps_ie,uint wps_ielen,u16 target_attr_id,u8 * buf_content,uint * len_content)837 u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_content, uint *len_content)
838 {
839 u8 *attr_ptr;
840 u32 attr_len;
841
842 if (len_content)
843 *len_content = 0;
844
845 attr_ptr = rtw_get_wps_attr(wps_ie, wps_ielen, target_attr_id, NULL, &attr_len);
846
847 if (attr_ptr && attr_len) {
848 if (buf_content)
849 memcpy(buf_content, attr_ptr+4, attr_len-4);
850
851 if (len_content)
852 *len_content = attr_len-4;
853
854 return attr_ptr+4;
855 }
856
857 return NULL;
858 }
859
rtw_ieee802_11_parse_vendor_specific(u8 * pos,uint elen,struct rtw_ieee802_11_elems * elems,int show_errors)860 static int rtw_ieee802_11_parse_vendor_specific(u8 *pos, uint elen,
861 struct rtw_ieee802_11_elems *elems,
862 int show_errors)
863 {
864 unsigned int oui;
865
866 /* first 3 bytes in vendor specific information element are the IEEE
867 * OUI of the vendor. The following byte is used a vendor specific
868 * sub-type. */
869 if (elen < 4) {
870 if (show_errors) {
871 DBG_871X("short vendor specific "
872 "information element ignored (len =%lu)\n",
873 (unsigned long) elen);
874 }
875 return -1;
876 }
877
878 oui = get_unaligned_be24(pos);
879 switch (oui) {
880 case OUI_MICROSOFT:
881 /* Microsoft/Wi-Fi information elements are further typed and
882 * subtyped */
883 switch (pos[3]) {
884 case 1:
885 /* Microsoft OUI (00:50:F2) with OUI Type 1:
886 * real WPA information element */
887 elems->wpa_ie = pos;
888 elems->wpa_ie_len = elen;
889 break;
890 case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
891 if (elen < 5) {
892 DBG_871X("short WME "
893 "information element ignored "
894 "(len =%lu)\n",
895 (unsigned long) elen);
896 return -1;
897 }
898 switch (pos[4]) {
899 case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
900 case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
901 elems->wme = pos;
902 elems->wme_len = elen;
903 break;
904 case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
905 elems->wme_tspec = pos;
906 elems->wme_tspec_len = elen;
907 break;
908 default:
909 DBG_871X("unknown WME "
910 "information element ignored "
911 "(subtype =%d len =%lu)\n",
912 pos[4], (unsigned long) elen);
913 return -1;
914 }
915 break;
916 case 4:
917 /* Wi-Fi Protected Setup (WPS) IE */
918 elems->wps_ie = pos;
919 elems->wps_ie_len = elen;
920 break;
921 default:
922 DBG_871X("Unknown Microsoft "
923 "information element ignored "
924 "(type =%d len =%lu)\n",
925 pos[3], (unsigned long) elen);
926 return -1;
927 }
928 break;
929
930 case OUI_BROADCOM:
931 switch (pos[3]) {
932 case VENDOR_HT_CAPAB_OUI_TYPE:
933 elems->vendor_ht_cap = pos;
934 elems->vendor_ht_cap_len = elen;
935 break;
936 default:
937 DBG_871X("Unknown Broadcom "
938 "information element ignored "
939 "(type =%d len =%lu)\n",
940 pos[3], (unsigned long) elen);
941 return -1;
942 }
943 break;
944
945 default:
946 DBG_871X("unknown vendor specific information "
947 "element ignored (vendor OUI %02x:%02x:%02x "
948 "len =%lu)\n",
949 pos[0], pos[1], pos[2], (unsigned long) elen);
950 return -1;
951 }
952
953 return 0;
954 }
955
956 /**
957 * ieee802_11_parse_elems - Parse information elements in management frames
958 * @start: Pointer to the start of IEs
959 * @len: Length of IE buffer in octets
960 * @elems: Data structure for parsed elements
961 * @show_errors: Whether to show parsing errors in debug log
962 * Returns: Parsing result
963 */
rtw_ieee802_11_parse_elems(u8 * start,uint len,struct rtw_ieee802_11_elems * elems,int show_errors)964 ParseRes rtw_ieee802_11_parse_elems(u8 *start, uint len,
965 struct rtw_ieee802_11_elems *elems,
966 int show_errors)
967 {
968 uint left = len;
969 u8 *pos = start;
970 int unknown = 0;
971
972 memset(elems, 0, sizeof(*elems));
973
974 while (left >= 2) {
975 u8 id, elen;
976
977 id = *pos++;
978 elen = *pos++;
979 left -= 2;
980
981 if (elen > left) {
982 if (show_errors) {
983 DBG_871X("IEEE 802.11 element "
984 "parse failed (id =%d elen =%d "
985 "left =%lu)\n",
986 id, elen, (unsigned long) left);
987 }
988 return ParseFailed;
989 }
990
991 switch (id) {
992 case WLAN_EID_SSID:
993 elems->ssid = pos;
994 elems->ssid_len = elen;
995 break;
996 case WLAN_EID_SUPP_RATES:
997 elems->supp_rates = pos;
998 elems->supp_rates_len = elen;
999 break;
1000 case WLAN_EID_FH_PARAMS:
1001 elems->fh_params = pos;
1002 elems->fh_params_len = elen;
1003 break;
1004 case WLAN_EID_DS_PARAMS:
1005 elems->ds_params = pos;
1006 elems->ds_params_len = elen;
1007 break;
1008 case WLAN_EID_CF_PARAMS:
1009 elems->cf_params = pos;
1010 elems->cf_params_len = elen;
1011 break;
1012 case WLAN_EID_TIM:
1013 elems->tim = pos;
1014 elems->tim_len = elen;
1015 break;
1016 case WLAN_EID_IBSS_PARAMS:
1017 elems->ibss_params = pos;
1018 elems->ibss_params_len = elen;
1019 break;
1020 case WLAN_EID_CHALLENGE:
1021 elems->challenge = pos;
1022 elems->challenge_len = elen;
1023 break;
1024 case WLAN_EID_ERP_INFO:
1025 elems->erp_info = pos;
1026 elems->erp_info_len = elen;
1027 break;
1028 case WLAN_EID_EXT_SUPP_RATES:
1029 elems->ext_supp_rates = pos;
1030 elems->ext_supp_rates_len = elen;
1031 break;
1032 case WLAN_EID_VENDOR_SPECIFIC:
1033 if (rtw_ieee802_11_parse_vendor_specific(pos, elen,
1034 elems,
1035 show_errors))
1036 unknown++;
1037 break;
1038 case WLAN_EID_RSN:
1039 elems->rsn_ie = pos;
1040 elems->rsn_ie_len = elen;
1041 break;
1042 case WLAN_EID_PWR_CAPABILITY:
1043 elems->power_cap = pos;
1044 elems->power_cap_len = elen;
1045 break;
1046 case WLAN_EID_SUPPORTED_CHANNELS:
1047 elems->supp_channels = pos;
1048 elems->supp_channels_len = elen;
1049 break;
1050 case WLAN_EID_MOBILITY_DOMAIN:
1051 elems->mdie = pos;
1052 elems->mdie_len = elen;
1053 break;
1054 case WLAN_EID_FAST_BSS_TRANSITION:
1055 elems->ftie = pos;
1056 elems->ftie_len = elen;
1057 break;
1058 case WLAN_EID_TIMEOUT_INTERVAL:
1059 elems->timeout_int = pos;
1060 elems->timeout_int_len = elen;
1061 break;
1062 case WLAN_EID_HT_CAP:
1063 elems->ht_capabilities = pos;
1064 elems->ht_capabilities_len = elen;
1065 break;
1066 case WLAN_EID_HT_OPERATION:
1067 elems->ht_operation = pos;
1068 elems->ht_operation_len = elen;
1069 break;
1070 case WLAN_EID_VHT_CAPABILITY:
1071 elems->vht_capabilities = pos;
1072 elems->vht_capabilities_len = elen;
1073 break;
1074 case WLAN_EID_VHT_OPERATION:
1075 elems->vht_operation = pos;
1076 elems->vht_operation_len = elen;
1077 break;
1078 case WLAN_EID_VHT_OP_MODE_NOTIFY:
1079 elems->vht_op_mode_notify = pos;
1080 elems->vht_op_mode_notify_len = elen;
1081 break;
1082 default:
1083 unknown++;
1084 if (!show_errors)
1085 break;
1086 DBG_871X("IEEE 802.11 element parse "
1087 "ignored unknown element (id =%d elen =%d)\n",
1088 id, elen);
1089 break;
1090 }
1091
1092 left -= elen;
1093 pos += elen;
1094 }
1095
1096 if (left)
1097 return ParseFailed;
1098
1099 return unknown ? ParseUnknown : ParseOK;
1100 }
1101
rtw_macaddr_cfg(struct device * dev,u8 * mac_addr)1102 void rtw_macaddr_cfg(struct device *dev, u8 *mac_addr)
1103 {
1104 u8 mac[ETH_ALEN];
1105 struct device_node *np = dev->of_node;
1106 const unsigned char *addr;
1107 int len;
1108
1109 if (!mac_addr)
1110 return;
1111
1112 if (rtw_initmac && mac_pton(rtw_initmac, mac)) {
1113 /* Users specify the mac address */
1114 ether_addr_copy(mac_addr, mac);
1115 } else {
1116 /* Use the mac address stored in the Efuse */
1117 ether_addr_copy(mac, mac_addr);
1118 }
1119
1120 if (is_broadcast_ether_addr(mac) || is_zero_ether_addr(mac)) {
1121 if ((addr = of_get_property(np, "local-mac-address", &len)) &&
1122 len == ETH_ALEN) {
1123 ether_addr_copy(mac_addr, addr);
1124 } else {
1125 eth_random_addr(mac_addr);
1126 DBG_871X("MAC Address from efuse error, assign random one !!!\n");
1127 }
1128 }
1129
1130 DBG_871X("rtw_macaddr_cfg MAC Address = "MAC_FMT"\n", MAC_ARG(mac_addr));
1131 }
1132
rtw_get_cipher_info(struct wlan_network * pnetwork)1133 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
1134 {
1135 u32 wpa_ielen;
1136 unsigned char *pbuf;
1137 int group_cipher = 0, pairwise_cipher = 0, is8021x = 0;
1138 int ret = _FAIL;
1139
1140 pbuf = rtw_get_wpa_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1141
1142 if (pbuf && (wpa_ielen > 0)) {
1143 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen));
1144 if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1145 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1146 pnetwork->BcnInfo.group_cipher = group_cipher;
1147 pnetwork->BcnInfo.is_8021x = is8021x;
1148 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d, is_8021x is %d",
1149 __func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.is_8021x));
1150 ret = _SUCCESS;
1151 }
1152 } else {
1153 pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1154
1155 if (pbuf && (wpa_ielen > 0)) {
1156 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n"));
1157 if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1158 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE OK!!!\n"));
1159 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1160 pnetwork->BcnInfo.group_cipher = group_cipher;
1161 pnetwork->BcnInfo.is_8021x = is8021x;
1162 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d,"
1163 "pnetwork->group_cipher is %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher,
1164 pnetwork->BcnInfo.group_cipher, pnetwork->BcnInfo.is_8021x));
1165 ret = _SUCCESS;
1166 }
1167 }
1168 }
1169
1170 return ret;
1171 }
1172
rtw_get_bcn_info(struct wlan_network * pnetwork)1173 void rtw_get_bcn_info(struct wlan_network *pnetwork)
1174 {
1175 unsigned short cap = 0;
1176 u8 bencrypt = 0;
1177 /* u8 wpa_ie[255], rsn_ie[255]; */
1178 u16 wpa_len = 0, rsn_len = 0;
1179 struct HT_info_element *pht_info = NULL;
1180 struct ieee80211_ht_cap *pht_cap = NULL;
1181 unsigned int len;
1182 unsigned char *p;
1183 __le16 le_cap;
1184
1185 memcpy((u8 *)&le_cap, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
1186 cap = le16_to_cpu(le_cap);
1187 if (cap & WLAN_CAPABILITY_PRIVACY) {
1188 bencrypt = 1;
1189 pnetwork->network.Privacy = 1;
1190 } else {
1191 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
1192 }
1193 rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len);
1194 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
1195 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
1196 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
1197 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
1198
1199 if (rsn_len > 0) {
1200 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1201 } else if (wpa_len > 0) {
1202 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
1203 } else {
1204 if (bencrypt)
1205 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
1206 }
1207 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
1208 pnetwork->BcnInfo.encryp_protocol));
1209 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
1210 pnetwork->BcnInfo.encryp_protocol));
1211 rtw_get_cipher_info(pnetwork);
1212
1213 /* get bwmode and ch_offset */
1214 /* parsing HT_CAP_IE */
1215 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1216 if (p && len > 0) {
1217 pht_cap = (struct ieee80211_ht_cap *)(p + 2);
1218 pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info);
1219 } else {
1220 pnetwork->BcnInfo.ht_cap_info = 0;
1221 }
1222 /* parsing HT_INFO_IE */
1223 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1224 if (p && len > 0) {
1225 pht_info = (struct HT_info_element *)(p + 2);
1226 pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
1227 } else {
1228 pnetwork->BcnInfo.ht_info_infos_0 = 0;
1229 }
1230 }
1231
1232 /* show MCS rate, unit: 100Kbps */
rtw_mcs_rate(u8 rf_type,u8 bw_40MHz,u8 short_GI,unsigned char * MCS_rate)1233 u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI, unsigned char *MCS_rate)
1234 {
1235 u16 max_rate = 0;
1236
1237 if (rf_type == RF_1T1R) {
1238 if (MCS_rate[0] & BIT(7))
1239 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1240 else if (MCS_rate[0] & BIT(6))
1241 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1242 else if (MCS_rate[0] & BIT(5))
1243 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1244 else if (MCS_rate[0] & BIT(4))
1245 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1246 else if (MCS_rate[0] & BIT(3))
1247 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1248 else if (MCS_rate[0] & BIT(2))
1249 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1250 else if (MCS_rate[0] & BIT(1))
1251 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1252 else if (MCS_rate[0] & BIT(0))
1253 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1254 } else {
1255 if (MCS_rate[1]) {
1256 if (MCS_rate[1] & BIT(7))
1257 max_rate = (bw_40MHz) ? ((short_GI)?3000:2700):((short_GI)?1444:1300);
1258 else if (MCS_rate[1] & BIT(6))
1259 max_rate = (bw_40MHz) ? ((short_GI)?2700:2430):((short_GI)?1300:1170);
1260 else if (MCS_rate[1] & BIT(5))
1261 max_rate = (bw_40MHz) ? ((short_GI)?2400:2160):((short_GI)?1156:1040);
1262 else if (MCS_rate[1] & BIT(4))
1263 max_rate = (bw_40MHz) ? ((short_GI)?1800:1620):((short_GI)?867:780);
1264 else if (MCS_rate[1] & BIT(3))
1265 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1266 else if (MCS_rate[1] & BIT(2))
1267 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1268 else if (MCS_rate[1] & BIT(1))
1269 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1270 else if (MCS_rate[1] & BIT(0))
1271 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1272 } else {
1273 if (MCS_rate[0] & BIT(7))
1274 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1275 else if (MCS_rate[0] & BIT(6))
1276 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1277 else if (MCS_rate[0] & BIT(5))
1278 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1279 else if (MCS_rate[0] & BIT(4))
1280 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1281 else if (MCS_rate[0] & BIT(3))
1282 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1283 else if (MCS_rate[0] & BIT(2))
1284 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1285 else if (MCS_rate[0] & BIT(1))
1286 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1287 else if (MCS_rate[0] & BIT(0))
1288 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1289 }
1290 }
1291 return max_rate;
1292 }
1293
rtw_action_frame_parse(const u8 * frame,u32 frame_len,u8 * category,u8 * action)1294 int rtw_action_frame_parse(const u8 *frame, u32 frame_len, u8 *category, u8 *action)
1295 {
1296 const u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr);
1297 u16 fc;
1298 u8 c;
1299 u8 a = ACT_PUBLIC_MAX;
1300
1301 fc = le16_to_cpu(((struct ieee80211_hdr_3addr *)frame)->frame_control);
1302
1303 if ((fc & (IEEE80211_FCTL_FTYPE|IEEE80211_FCTL_STYPE))
1304 != (IEEE80211_FTYPE_MGMT|IEEE80211_STYPE_ACTION)
1305 ) {
1306 return false;
1307 }
1308
1309 c = frame_body[0];
1310
1311 switch (c) {
1312 case RTW_WLAN_CATEGORY_P2P: /* vendor-specific */
1313 break;
1314 default:
1315 a = frame_body[1];
1316 }
1317
1318 if (category)
1319 *category = c;
1320 if (action)
1321 *action = a;
1322
1323 return true;
1324 }
1325
1326 static const char *_action_public_str[] = {
1327 "ACT_PUB_BSSCOEXIST",
1328 "ACT_PUB_DSE_ENABLE",
1329 "ACT_PUB_DSE_DEENABLE",
1330 "ACT_PUB_DSE_REG_LOCATION",
1331 "ACT_PUB_EXT_CHL_SWITCH",
1332 "ACT_PUB_DSE_MSR_REQ",
1333 "ACT_PUB_DSE_MSR_RPRT",
1334 "ACT_PUB_MP",
1335 "ACT_PUB_DSE_PWR_CONSTRAINT",
1336 "ACT_PUB_VENDOR",
1337 "ACT_PUB_GAS_INITIAL_REQ",
1338 "ACT_PUB_GAS_INITIAL_RSP",
1339 "ACT_PUB_GAS_COMEBACK_REQ",
1340 "ACT_PUB_GAS_COMEBACK_RSP",
1341 "ACT_PUB_TDLS_DISCOVERY_RSP",
1342 "ACT_PUB_LOCATION_TRACK",
1343 "ACT_PUB_RSVD",
1344 };
1345
action_public_str(u8 action)1346 const char *action_public_str(u8 action)
1347 {
1348 action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action;
1349 return _action_public_str[action];
1350 }
1351
