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
13 u8 RTW_WPA_OUI_TYPE[] = { 0x00, 0x50, 0xf2, 1 };
14 u16 RTW_WPA_VERSION = 1;
15 u8 WPA_AUTH_KEY_MGMT_NONE[] = { 0x00, 0x50, 0xf2, 0 };
16 u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x50, 0xf2, 1 };
17 u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x50, 0xf2, 2 };
18 u8 WPA_CIPHER_SUITE_NONE[] = { 0x00, 0x50, 0xf2, 0 };
19 u8 WPA_CIPHER_SUITE_WEP40[] = { 0x00, 0x50, 0xf2, 1 };
20 u8 WPA_CIPHER_SUITE_TKIP[] = { 0x00, 0x50, 0xf2, 2 };
21 u8 WPA_CIPHER_SUITE_WRAP[] = { 0x00, 0x50, 0xf2, 3 };
22 u8 WPA_CIPHER_SUITE_CCMP[] = { 0x00, 0x50, 0xf2, 4 };
23 u8 WPA_CIPHER_SUITE_WEP104[] = { 0x00, 0x50, 0xf2, 5 };
24
25 u16 RSN_VERSION_BSD = 1;
26 u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x0f, 0xac, 1 };
27 u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x0f, 0xac, 2 };
28 u8 RSN_CIPHER_SUITE_NONE[] = { 0x00, 0x0f, 0xac, 0 };
29 u8 RSN_CIPHER_SUITE_WEP40[] = { 0x00, 0x0f, 0xac, 1 };
30 u8 RSN_CIPHER_SUITE_TKIP[] = { 0x00, 0x0f, 0xac, 2 };
31 u8 RSN_CIPHER_SUITE_WRAP[] = { 0x00, 0x0f, 0xac, 3 };
32 u8 RSN_CIPHER_SUITE_CCMP[] = { 0x00, 0x0f, 0xac, 4 };
33 u8 RSN_CIPHER_SUITE_WEP104[] = { 0x00, 0x0f, 0xac, 5 };
34 /* */
35 /* for adhoc-master to generate ie and provide supported-rate to fw */
36 /* */
37
38 static u8 WIFI_CCKRATES[] = {
39 (IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK),
40 (IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK),
41 (IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK),
42 (IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK)
43 };
44
45 static u8 WIFI_OFDMRATES[] = {
46 (IEEE80211_OFDM_RATE_6MB),
47 (IEEE80211_OFDM_RATE_9MB),
48 (IEEE80211_OFDM_RATE_12MB),
49 (IEEE80211_OFDM_RATE_18MB),
50 (IEEE80211_OFDM_RATE_24MB),
51 IEEE80211_OFDM_RATE_36MB,
52 IEEE80211_OFDM_RATE_48MB,
53 IEEE80211_OFDM_RATE_54MB
54 };
55
rtw_get_bit_value_from_ieee_value(u8 val)56 int rtw_get_bit_value_from_ieee_value(u8 val)
57 {
58 unsigned char dot11_rate_table[] = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; /* last element must be zero!! */
59 int i = 0;
60
61 while (dot11_rate_table[i] != 0) {
62 if (dot11_rate_table[i] == val)
63 return BIT(i);
64 i++;
65 }
66 return 0;
67 }
68
rtw_is_cckrates_included(u8 * rate)69 bool rtw_is_cckrates_included(u8 *rate)
70 {
71 while (*rate) {
72 u8 r = *rate & 0x7f;
73
74 if (r == 2 || r == 4 || r == 11 || r == 22)
75 return true;
76 rate++;
77 }
78
79 return false;
80 }
81
rtw_is_cckratesonly_included(u8 * rate)82 bool rtw_is_cckratesonly_included(u8 *rate)
83 {
84 while (*rate) {
85 u8 r = *rate & 0x7f;
86
87 if (r != 2 && r != 4 && r != 11 && r != 22)
88 return false;
89 rate++;
90 }
91
92 return true;
93 }
94
rtw_check_network_type(unsigned char * rate,int ratelen,int channel)95 int rtw_check_network_type(unsigned char *rate, int ratelen, int channel)
96 {
97 if (channel > 14) {
98 if (rtw_is_cckrates_included(rate))
99 return WIRELESS_INVALID;
100 else
101 return WIRELESS_11A;
102 } else{ /* could be pure B, pure G, or B/G */
103 if (rtw_is_cckratesonly_included(rate))
104 return WIRELESS_11B;
105 else if (rtw_is_cckrates_included(rate))
106 return WIRELESS_11BG;
107 else
108 return WIRELESS_11G;
109 }
110 }
111
rtw_set_fixed_ie(unsigned char * pbuf,unsigned int len,unsigned char * source,unsigned int * frlen)112 u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len, unsigned char *source,
113 unsigned int *frlen)
114 {
115 memcpy((void *)pbuf, (void *)source, len);
116 *frlen = *frlen + len;
117 return (pbuf + len);
118 }
119
120 /* rtw_set_ie will update frame length */
rtw_set_ie(u8 * pbuf,sint index,uint len,u8 * source,uint * frlen)121 u8 *rtw_set_ie
122 (
123 u8 *pbuf,
124 sint index,
125 uint len,
126 u8 *source,
127 uint *frlen /* frame length */
128 )
129 {
130 *pbuf = (u8)index;
131
132 *(pbuf + 1) = (u8)len;
133
134 if (len > 0)
135 memcpy((void *)(pbuf + 2), (void *)source, len);
136
137 *frlen = *frlen + (len + 2);
138
139 return (pbuf + len + 2);
140 }
141
142 /*----------------------------------------------------------------------------
143 index: the information element id index, limit is the limit for search
144 -----------------------------------------------------------------------------*/
rtw_get_ie(u8 * pbuf,sint index,sint * len,sint limit)145 u8 *rtw_get_ie(u8 *pbuf, sint index, sint *len, sint limit)
146 {
147 sint tmp, i;
148 u8 *p;
149
150 if (limit < 1)
151 return NULL;
152
153 p = pbuf;
154 i = 0;
155 *len = 0;
156 while (1) {
157 if (*p == index) {
158 *len = *(p + 1);
159 return p;
160 } else{
161 tmp = *(p + 1);
162 p += (tmp + 2);
163 i += (tmp + 2);
164 }
165 if (i >= limit)
166 break;
167 }
168 return NULL;
169 }
170
171 /**
172 * rtw_get_ie_ex - Search specific IE from a series of IEs
173 * @in_ie: Address of IEs to search
174 * @in_len: Length limit from in_ie
175 * @eid: Element ID to match
176 * @oui: OUI to match
177 * @oui_len: OUI length
178 * @ie: If not NULL and the specific IE is found, the IE will be copied to the buf starting from the specific IE
179 * @ielen: If not NULL and the specific IE is found, will set to the length of the entire IE
180 *
181 * Returns: The address of the specific IE found, or NULL
182 */
rtw_get_ie_ex(u8 * in_ie,uint in_len,u8 eid,u8 * oui,u8 oui_len,u8 * ie,uint * ielen)183 u8 *rtw_get_ie_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen)
184 {
185 uint cnt;
186 u8 *target_ie = NULL;
187
188 if (ielen)
189 *ielen = 0;
190
191 if (!in_ie || in_len <= 0)
192 return target_ie;
193
194 cnt = 0;
195
196 while (cnt < in_len) {
197 if (eid == in_ie[cnt]
198 && (!oui || !memcmp(&in_ie[cnt+2], oui, oui_len))) {
199 target_ie = &in_ie[cnt];
200
201 if (ie)
202 memcpy(ie, &in_ie[cnt], in_ie[cnt+1]+2);
203
204 if (ielen)
205 *ielen = in_ie[cnt+1]+2;
206
207 break;
208 } else{
209 cnt += in_ie[cnt+1]+2; /* goto next */
210 }
211 }
212
213 return target_ie;
214 }
215
216 /**
217 * rtw_ies_remove_ie - Find matching IEs and remove
218 * @ies: Address of IEs to search
219 * @ies_len: Pointer of length of ies, will update to new length
220 * @offset: The offset to start scarch
221 * @eid: Element ID to match
222 * @oui: OUI to match
223 * @oui_len: OUI length
224 *
225 * Returns: _SUCCESS: ies is updated, _FAIL: not updated
226 */
rtw_ies_remove_ie(u8 * ies,uint * ies_len,uint offset,u8 eid,u8 * oui,u8 oui_len)227 int rtw_ies_remove_ie(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len)
228 {
229 int ret = _FAIL;
230 u8 *target_ie;
231 u32 target_ielen;
232 u8 *start;
233 uint search_len;
234
235 if (!ies || !ies_len || *ies_len <= offset)
236 goto exit;
237
238 start = ies + offset;
239 search_len = *ies_len - offset;
240
241 while (1) {
242 target_ie = rtw_get_ie_ex(start, search_len, eid, oui, oui_len, NULL, &target_ielen);
243 if (target_ie && target_ielen) {
244 u8 buf[MAX_IE_SZ] = {0};
245 u8 *remain_ies = target_ie + target_ielen;
246 uint remain_len = search_len - (remain_ies - start);
247
248 memcpy(buf, remain_ies, remain_len);
249 memcpy(target_ie, buf, remain_len);
250 *ies_len = *ies_len - target_ielen;
251 ret = _SUCCESS;
252
253 start = target_ie;
254 search_len = remain_len;
255 } else {
256 break;
257 }
258 }
259 exit:
260 return ret;
261 }
262
rtw_set_supported_rate(u8 * SupportedRates,uint mode)263 void rtw_set_supported_rate(u8 *SupportedRates, uint mode)
264 {
265 memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX);
266
267 switch (mode) {
268 case WIRELESS_11B:
269 memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
270 break;
271
272 case WIRELESS_11G:
273 case WIRELESS_11A:
274 case WIRELESS_11_5N:
275 case WIRELESS_11A_5N:/* Todo: no basic rate for ofdm ? */
276 case WIRELESS_11_5AC:
277 memcpy(SupportedRates, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
278 break;
279
280 case WIRELESS_11BG:
281 case WIRELESS_11G_24N:
282 case WIRELESS_11_24N:
283 case WIRELESS_11BG_24N:
284 memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
285 memcpy(SupportedRates + IEEE80211_CCK_RATE_LEN, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN);
286 break;
287 }
288 }
289
rtw_get_rateset_len(u8 * rateset)290 uint rtw_get_rateset_len(u8 *rateset)
291 {
292 uint i;
293
294 for (i = 0; i < 13; i++)
295 if (rateset[i] == 0)
296 break;
297 return i;
298 }
299
rtw_generate_ie(struct registry_priv * pregistrypriv)300 int rtw_generate_ie(struct registry_priv *pregistrypriv)
301 {
302 u8 wireless_mode;
303 int sz = 0, rateLen;
304 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
305 u8 *ie = pdev_network->IEs;
306
307 /* timestamp will be inserted by hardware */
308 sz += 8;
309 ie += sz;
310
311 /* beacon interval : 2bytes */
312 *(__le16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod);/* BCN_INTERVAL; */
313 sz += 2;
314 ie += 2;
315
316 /* capability info */
317 *(u16 *)ie = 0;
318
319 *(__le16 *)ie |= cpu_to_le16(cap_IBSS);
320
321 if (pregistrypriv->preamble == PREAMBLE_SHORT)
322 *(__le16 *)ie |= cpu_to_le16(cap_ShortPremble);
323
324 if (pdev_network->Privacy)
325 *(__le16 *)ie |= cpu_to_le16(cap_Privacy);
326
327 sz += 2;
328 ie += 2;
329
330 /* SSID */
331 ie = rtw_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, pdev_network->Ssid.Ssid, &sz);
332
333 /* supported rates */
334 if (pregistrypriv->wireless_mode == WIRELESS_11ABGN) {
335 if (pdev_network->Configuration.DSConfig > 14)
336 wireless_mode = WIRELESS_11A_5N;
337 else
338 wireless_mode = WIRELESS_11BG_24N;
339 } else{
340 wireless_mode = pregistrypriv->wireless_mode;
341 }
342
343 rtw_set_supported_rate(pdev_network->SupportedRates, wireless_mode);
344
345 rateLen = rtw_get_rateset_len(pdev_network->SupportedRates);
346
347 if (rateLen > 8) {
348 ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, 8, pdev_network->SupportedRates, &sz);
349 /* ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); */
350 } else{
351 ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, rateLen, pdev_network->SupportedRates, &sz);
352 }
353
354 /* DS parameter set */
355 ie = rtw_set_ie(ie, _DSSET_IE_, 1, (u8 *)&(pdev_network->Configuration.DSConfig), &sz);
356
357 /* IBSS Parameter Set */
358
359 ie = rtw_set_ie(ie, _IBSS_PARA_IE_, 2, (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz);
360
361 if (rateLen > 8) {
362 ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz);
363 }
364
365 /* HT Cap. */
366 if (((pregistrypriv->wireless_mode&WIRELESS_11_5N) || (pregistrypriv->wireless_mode&WIRELESS_11_24N))
367 && (pregistrypriv->ht_enable == true)) {
368 /* todo: */
369 }
370
371 /* pdev_network->IELength = sz; update IELength */
372
373 /* return _SUCCESS; */
374
375 return sz;
376 }
377
rtw_get_wpa_ie(unsigned char * pie,int * wpa_ie_len,int limit)378 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
379 {
380 int len;
381 u16 val16;
382 unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
383 u8 *pbuf = pie;
384 int limit_new = limit;
385 __le16 le_tmp;
386
387 while (1) {
388 pbuf = rtw_get_ie(pbuf, _WPA_IE_ID_, &len, limit_new);
389
390 if (pbuf) {
391 /* check if oui matches... */
392 if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type))) {
393 goto check_next_ie;
394 }
395
396 /* check version... */
397 memcpy((u8 *)&le_tmp, (pbuf + 6), sizeof(val16));
398
399 val16 = le16_to_cpu(le_tmp);
400 if (val16 != 0x0001)
401 goto check_next_ie;
402
403 *wpa_ie_len = *(pbuf + 1);
404
405 return pbuf;
406
407 } else{
408 *wpa_ie_len = 0;
409 return NULL;
410 }
411
412 check_next_ie:
413
414 limit_new = limit - (pbuf - pie) - 2 - len;
415
416 if (limit_new <= 0)
417 break;
418
419 pbuf += (2 + len);
420 }
421
422 *wpa_ie_len = 0;
423
424 return NULL;
425 }
426
rtw_get_wpa2_ie(unsigned char * pie,int * rsn_ie_len,int limit)427 unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
428 {
429 return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
430 }
431
rtw_get_wpa_cipher_suite(u8 * s)432 int rtw_get_wpa_cipher_suite(u8 *s)
433 {
434 if (!memcmp(s, WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN))
435 return WPA_CIPHER_NONE;
436 if (!memcmp(s, WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN))
437 return WPA_CIPHER_WEP40;
438 if (!memcmp(s, WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN))
439 return WPA_CIPHER_TKIP;
440 if (!memcmp(s, WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN))
441 return WPA_CIPHER_CCMP;
442 if (!memcmp(s, WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN))
443 return WPA_CIPHER_WEP104;
444
445 return 0;
446 }
447
rtw_get_wpa2_cipher_suite(u8 * s)448 int rtw_get_wpa2_cipher_suite(u8 *s)
449 {
450 if (!memcmp(s, RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN))
451 return WPA_CIPHER_NONE;
452 if (!memcmp(s, RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN))
453 return WPA_CIPHER_WEP40;
454 if (!memcmp(s, RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN))
455 return WPA_CIPHER_TKIP;
456 if (!memcmp(s, RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN))
457 return WPA_CIPHER_CCMP;
458 if (!memcmp(s, RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN))
459 return WPA_CIPHER_WEP104;
460
461 return 0;
462 }
463
rtw_parse_wpa_ie(u8 * wpa_ie,int wpa_ie_len,int * group_cipher,int * pairwise_cipher,int * is_8021x)464 int rtw_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
465 {
466 int i, ret = _SUCCESS;
467 int left, count;
468 u8 *pos;
469 u8 SUITE_1X[4] = {0x00, 0x50, 0xf2, 1};
470
471 if (wpa_ie_len <= 0) {
472 /* No WPA IE - fail silently */
473 return _FAIL;
474 }
475
476 if ((*wpa_ie != _WPA_IE_ID_) || (*(wpa_ie+1) != (u8)(wpa_ie_len - 2)) ||
477 (memcmp(wpa_ie+2, RTW_WPA_OUI_TYPE, WPA_SELECTOR_LEN))) {
478 return _FAIL;
479 }
480
481 pos = wpa_ie;
482
483 pos += 8;
484 left = wpa_ie_len - 8;
485
486 /* group_cipher */
487 if (left >= WPA_SELECTOR_LEN) {
488 *group_cipher = rtw_get_wpa_cipher_suite(pos);
489
490 pos += WPA_SELECTOR_LEN;
491 left -= WPA_SELECTOR_LEN;
492
493 } else if (left > 0) {
494 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
495
496 return _FAIL;
497 }
498
499 /* pairwise_cipher */
500 if (left >= 2) {
501 /* count = le16_to_cpu(*(u16*)pos); */
502 count = RTW_GET_LE16(pos);
503 pos += 2;
504 left -= 2;
505
506 if (count == 0 || left < count * WPA_SELECTOR_LEN) {
507 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
508 "count %u left %u", __func__, count, left));
509 return _FAIL;
510 }
511
512 for (i = 0; i < count; i++) {
513 *pairwise_cipher |= rtw_get_wpa_cipher_suite(pos);
514
515 pos += WPA_SELECTOR_LEN;
516 left -= WPA_SELECTOR_LEN;
517 }
518
519 } else if (left == 1) {
520 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
521 return _FAIL;
522 }
523
524 if (is_8021x) {
525 if (left >= 6) {
526 pos += 2;
527 if (!memcmp(pos, SUITE_1X, 4)) {
528 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s : there has 802.1x auth\n", __func__));
529 *is_8021x = 1;
530 }
531 }
532 }
533
534 return ret;
535 }
536
rtw_parse_wpa2_ie(u8 * rsn_ie,int rsn_ie_len,int * group_cipher,int * pairwise_cipher,int * is_8021x)537 int rtw_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
538 {
539 int i, ret = _SUCCESS;
540 int left, count;
541 u8 *pos;
542 u8 SUITE_1X[4] = {0x00, 0x0f, 0xac, 0x01};
543
544 if (rsn_ie_len <= 0) {
545 /* No RSN IE - fail silently */
546 return _FAIL;
547 }
548
549 if ((*rsn_ie != _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2))) {
550 return _FAIL;
551 }
552
553 pos = rsn_ie;
554 pos += 4;
555 left = rsn_ie_len - 4;
556
557 /* group_cipher */
558 if (left >= RSN_SELECTOR_LEN) {
559 *group_cipher = rtw_get_wpa2_cipher_suite(pos);
560
561 pos += RSN_SELECTOR_LEN;
562 left -= RSN_SELECTOR_LEN;
563
564 } else if (left > 0) {
565 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
566 return _FAIL;
567 }
568
569 /* pairwise_cipher */
570 if (left >= 2) {
571 /* count = le16_to_cpu(*(u16*)pos); */
572 count = RTW_GET_LE16(pos);
573 pos += 2;
574 left -= 2;
575
576 if (count == 0 || left < count * RSN_SELECTOR_LEN) {
577 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), "
578 "count %u left %u", __func__, count, left));
579 return _FAIL;
580 }
581
582 for (i = 0; i < count; i++) {
583 *pairwise_cipher |= rtw_get_wpa2_cipher_suite(pos);
584
585 pos += RSN_SELECTOR_LEN;
586 left -= RSN_SELECTOR_LEN;
587 }
588
589 } else if (left == 1) {
590 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
591
592 return _FAIL;
593 }
594
595 if (is_8021x) {
596 if (left >= 6) {
597 pos += 2;
598 if (!memcmp(pos, SUITE_1X, 4)) {
599 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s (): there has 802.1x auth\n", __func__));
600 *is_8021x = 1;
601 }
602 }
603 }
604
605 return ret;
606 }
607
608 /* ifdef CONFIG_WAPI_SUPPORT */
rtw_get_wapi_ie(u8 * in_ie,uint in_len,u8 * wapi_ie,u16 * wapi_len)609 int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len)
610 {
611 int len = 0;
612 u8 authmode, i;
613 uint cnt;
614 u8 wapi_oui1[4] = {0x0, 0x14, 0x72, 0x01};
615 u8 wapi_oui2[4] = {0x0, 0x14, 0x72, 0x02};
616
617 if (wapi_len)
618 *wapi_len = 0;
619
620 if (!in_ie || in_len <= 0)
621 return len;
622
623 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
624
625 while (cnt < in_len) {
626 authmode = in_ie[cnt];
627
628 /* if (authmode == _WAPI_IE_) */
629 if (authmode == _WAPI_IE_ && (!memcmp(&in_ie[cnt+6], wapi_oui1, 4) ||
630 !memcmp(&in_ie[cnt+6], wapi_oui2, 4))) {
631 if (wapi_ie) {
632 memcpy(wapi_ie, &in_ie[cnt], in_ie[cnt+1]+2);
633
634 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
635 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
636 wapi_ie[i], wapi_ie[i+1], wapi_ie[i+2], wapi_ie[i+3], wapi_ie[i+4],
637 wapi_ie[i+5], wapi_ie[i+6], wapi_ie[i+7]));
638 }
639 }
640
641 if (wapi_len)
642 *wapi_len = in_ie[cnt+1]+2;
643
644 cnt += in_ie[cnt+1]+2; /* get next */
645 } else{
646 cnt += in_ie[cnt+1]+2; /* get next */
647 }
648 }
649
650 if (wapi_len)
651 len = *wapi_len;
652
653 return len;
654 }
655 /* endif */
656
rtw_get_sec_ie(u8 * in_ie,uint in_len,u8 * rsn_ie,u16 * rsn_len,u8 * wpa_ie,u16 * wpa_len)657 int rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len)
658 {
659 u8 authmode, sec_idx, i;
660 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
661 uint cnt;
662
663 /* Search required WPA or WPA2 IE and copy to sec_ie[ ] */
664
665 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
666
667 sec_idx = 0;
668
669 while (cnt < in_len) {
670 authmode = in_ie[cnt];
671
672 if ((authmode == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) {
673 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));
674
675 if (wpa_ie) {
676 memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt+1]+2);
677
678 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
679 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
680 wpa_ie[i], wpa_ie[i+1], wpa_ie[i+2], wpa_ie[i+3], wpa_ie[i+4],
681 wpa_ie[i+5], wpa_ie[i+6], wpa_ie[i+7]));
682 }
683 }
684
685 *wpa_len = in_ie[cnt+1]+2;
686 cnt += in_ie[cnt+1]+2; /* get next */
687 } else{
688 if (authmode == _WPA2_IE_ID_) {
689 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));
690
691 if (rsn_ie) {
692 memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt+1]+2);
693
694 for (i = 0; i < (in_ie[cnt+1]+2); i = i+8) {
695 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n",
696 rsn_ie[i], rsn_ie[i+1], rsn_ie[i+2], rsn_ie[i+3], rsn_ie[i+4],
697 rsn_ie[i+5], rsn_ie[i+6], rsn_ie[i+7]));
698 }
699 }
700
701 *rsn_len = in_ie[cnt+1]+2;
702 cnt += in_ie[cnt+1]+2; /* get next */
703 } else{
704 cnt += in_ie[cnt+1]+2; /* get next */
705 }
706 }
707 }
708
709 return (*rsn_len + *wpa_len);
710 }
711
rtw_is_wps_ie(u8 * ie_ptr,uint * wps_ielen)712 u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen)
713 {
714 u8 match = false;
715 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
716
717 if (!ie_ptr)
718 return match;
719
720 eid = ie_ptr[0];
721
722 if ((eid == _WPA_IE_ID_) && (!memcmp(&ie_ptr[2], wps_oui, 4))) {
723 /* DBG_8192C("==> found WPS_IE.....\n"); */
724 *wps_ielen = ie_ptr[1]+2;
725 match = true;
726 }
727 return match;
728 }
729
730 /**
731 * rtw_get_wps_ie - Search WPS IE from a series of IEs
732 * @in_ie: Address of IEs to search
733 * @in_len: Length limit from in_ie
734 * @wps_ie: If not NULL and WPS IE is found, WPS IE will be copied to the buf starting from wps_ie
735 * @wps_ielen: If not NULL and WPS IE is found, will set to the length of the entire WPS IE
736 *
737 * Returns: The address of the WPS IE found, or NULL
738 */
rtw_get_wps_ie(u8 * in_ie,uint in_len,u8 * wps_ie,uint * wps_ielen)739 u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen)
740 {
741 uint cnt;
742 u8 *wpsie_ptr = NULL;
743 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
744
745 if (wps_ielen)
746 *wps_ielen = 0;
747
748 if (!in_ie || in_len <= 0)
749 return wpsie_ptr;
750
751 cnt = 0;
752
753 while (cnt < in_len) {
754 eid = in_ie[cnt];
755
756 if ((eid == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], wps_oui, 4))) {
757 wpsie_ptr = &in_ie[cnt];
758
759 if (wps_ie)
760 memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2);
761
762 if (wps_ielen)
763 *wps_ielen = in_ie[cnt+1]+2;
764
765 cnt += in_ie[cnt+1]+2;
766
767 break;
768 } else{
769 cnt += in_ie[cnt+1]+2; /* goto next */
770 }
771 }
772
773 return wpsie_ptr;
774 }
775
776 /**
777 * rtw_get_wps_attr - Search a specific WPS attribute from a given WPS IE
778 * @wps_ie: Address of WPS IE to search
779 * @wps_ielen: Length limit from wps_ie
780 * @target_attr_id: The attribute ID of WPS attribute to search
781 * @buf_attr: If not NULL and the WPS attribute is found, WPS attribute will be copied to the buf starting from buf_attr
782 * @len_attr: If not NULL and the WPS attribute is found, will set to the length of the entire WPS attribute
783 *
784 * Returns: the address of the specific WPS attribute found, or NULL
785 */
rtw_get_wps_attr(u8 * wps_ie,uint wps_ielen,u16 target_attr_id,u8 * buf_attr,u32 * len_attr)786 u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_attr, u32 *len_attr)
787 {
788 u8 *attr_ptr = NULL;
789 u8 *target_attr_ptr = NULL;
790 u8 wps_oui[4] = {0x00, 0x50, 0xF2, 0x04};
791
792 if (len_attr)
793 *len_attr = 0;
794
795 if ((wps_ie[0] != _VENDOR_SPECIFIC_IE_) ||
796 (memcmp(wps_ie + 2, wps_oui, 4))) {
797 return attr_ptr;
798 }
799
800 /* 6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */
801 attr_ptr = wps_ie + 6; /* goto first attr */
802
803 while (attr_ptr - wps_ie < wps_ielen) {
804 /* 4 = 2(Attribute ID) + 2(Length) */
805 u16 attr_id = RTW_GET_BE16(attr_ptr);
806 u16 attr_data_len = RTW_GET_BE16(attr_ptr + 2);
807 u16 attr_len = attr_data_len + 4;
808
809 /* DBG_871X("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); */
810 if (attr_id == target_attr_id) {
811 target_attr_ptr = attr_ptr;
812
813 if (buf_attr)
814 memcpy(buf_attr, attr_ptr, attr_len);
815
816 if (len_attr)
817 *len_attr = attr_len;
818
819 break;
820 } else{
821 attr_ptr += attr_len; /* goto next */
822 }
823 }
824
825 return target_attr_ptr;
826 }
827
828 /**
829 * rtw_get_wps_attr_content - Search a specific WPS attribute content from a given WPS IE
830 * @wps_ie: Address of WPS IE to search
831 * @wps_ielen: Length limit from wps_ie
832 * @target_attr_id: The attribute ID of WPS attribute to search
833 * @buf_content: If not NULL and the WPS attribute is found, WPS attribute content will be copied to the buf starting from buf_content
834 * @len_content: If not NULL and the WPS attribute is found, will set to the length of the WPS attribute content
835 *
836 * Returns: the address of the specific WPS attribute content found, or NULL
837 */
rtw_get_wps_attr_content(u8 * wps_ie,uint wps_ielen,u16 target_attr_id,u8 * buf_content,uint * len_content)838 u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_content, uint *len_content)
839 {
840 u8 *attr_ptr;
841 u32 attr_len;
842
843 if (len_content)
844 *len_content = 0;
845
846 attr_ptr = rtw_get_wps_attr(wps_ie, wps_ielen, target_attr_id, NULL, &attr_len);
847
848 if (attr_ptr && attr_len) {
849 if (buf_content)
850 memcpy(buf_content, attr_ptr+4, attr_len-4);
851
852 if (len_content)
853 *len_content = attr_len-4;
854
855 return attr_ptr+4;
856 }
857
858 return NULL;
859 }
860
rtw_ieee802_11_parse_vendor_specific(u8 * pos,uint elen,struct rtw_ieee802_11_elems * elems,int show_errors)861 static int rtw_ieee802_11_parse_vendor_specific(u8 *pos, uint elen,
862 struct rtw_ieee802_11_elems *elems,
863 int show_errors)
864 {
865 unsigned int oui;
866
867 /* first 3 bytes in vendor specific information element are the IEEE
868 * OUI of the vendor. The following byte is used a vendor specific
869 * sub-type. */
870 if (elen < 4) {
871 if (show_errors) {
872 DBG_871X("short vendor specific "
873 "information element ignored (len =%lu)\n",
874 (unsigned long) elen);
875 }
876 return -1;
877 }
878
879 oui = RTW_GET_BE24(pos);
880 switch (oui) {
881 case OUI_MICROSOFT:
882 /* Microsoft/Wi-Fi information elements are further typed and
883 * subtyped */
884 switch (pos[3]) {
885 case 1:
886 /* Microsoft OUI (00:50:F2) with OUI Type 1:
887 * real WPA information element */
888 elems->wpa_ie = pos;
889 elems->wpa_ie_len = elen;
890 break;
891 case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
892 if (elen < 5) {
893 DBG_871X("short WME "
894 "information element ignored "
895 "(len =%lu)\n",
896 (unsigned long) elen);
897 return -1;
898 }
899 switch (pos[4]) {
900 case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
901 case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
902 elems->wme = pos;
903 elems->wme_len = elen;
904 break;
905 case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
906 elems->wme_tspec = pos;
907 elems->wme_tspec_len = elen;
908 break;
909 default:
910 DBG_871X("unknown WME "
911 "information element ignored "
912 "(subtype =%d len =%lu)\n",
913 pos[4], (unsigned long) elen);
914 return -1;
915 }
916 break;
917 case 4:
918 /* Wi-Fi Protected Setup (WPS) IE */
919 elems->wps_ie = pos;
920 elems->wps_ie_len = elen;
921 break;
922 default:
923 DBG_871X("Unknown Microsoft "
924 "information element ignored "
925 "(type =%d len =%lu)\n",
926 pos[3], (unsigned long) elen);
927 return -1;
928 }
929 break;
930
931 case OUI_BROADCOM:
932 switch (pos[3]) {
933 case VENDOR_HT_CAPAB_OUI_TYPE:
934 elems->vendor_ht_cap = pos;
935 elems->vendor_ht_cap_len = elen;
936 break;
937 default:
938 DBG_871X("Unknown Broadcom "
939 "information element ignored "
940 "(type =%d len =%lu)\n",
941 pos[3], (unsigned long) elen);
942 return -1;
943 }
944 break;
945
946 default:
947 DBG_871X("unknown vendor specific information "
948 "element ignored (vendor OUI %02x:%02x:%02x "
949 "len =%lu)\n",
950 pos[0], pos[1], pos[2], (unsigned long) elen);
951 return -1;
952 }
953
954 return 0;
955 }
956
957 /**
958 * ieee802_11_parse_elems - Parse information elements in management frames
959 * @start: Pointer to the start of IEs
960 * @len: Length of IE buffer in octets
961 * @elems: Data structure for parsed elements
962 * @show_errors: Whether to show parsing errors in debug log
963 * Returns: Parsing result
964 */
rtw_ieee802_11_parse_elems(u8 * start,uint len,struct rtw_ieee802_11_elems * elems,int show_errors)965 ParseRes rtw_ieee802_11_parse_elems(u8 *start, uint len,
966 struct rtw_ieee802_11_elems *elems,
967 int show_errors)
968 {
969 uint left = len;
970 u8 *pos = start;
971 int unknown = 0;
972
973 memset(elems, 0, sizeof(*elems));
974
975 while (left >= 2) {
976 u8 id, elen;
977
978 id = *pos++;
979 elen = *pos++;
980 left -= 2;
981
982 if (elen > left) {
983 if (show_errors) {
984 DBG_871X("IEEE 802.11 element "
985 "parse failed (id =%d elen =%d "
986 "left =%lu)\n",
987 id, elen, (unsigned long) left);
988 }
989 return ParseFailed;
990 }
991
992 switch (id) {
993 case WLAN_EID_SSID:
994 elems->ssid = pos;
995 elems->ssid_len = elen;
996 break;
997 case WLAN_EID_SUPP_RATES:
998 elems->supp_rates = pos;
999 elems->supp_rates_len = elen;
1000 break;
1001 case WLAN_EID_FH_PARAMS:
1002 elems->fh_params = pos;
1003 elems->fh_params_len = elen;
1004 break;
1005 case WLAN_EID_DS_PARAMS:
1006 elems->ds_params = pos;
1007 elems->ds_params_len = elen;
1008 break;
1009 case WLAN_EID_CF_PARAMS:
1010 elems->cf_params = pos;
1011 elems->cf_params_len = elen;
1012 break;
1013 case WLAN_EID_TIM:
1014 elems->tim = pos;
1015 elems->tim_len = elen;
1016 break;
1017 case WLAN_EID_IBSS_PARAMS:
1018 elems->ibss_params = pos;
1019 elems->ibss_params_len = elen;
1020 break;
1021 case WLAN_EID_CHALLENGE:
1022 elems->challenge = pos;
1023 elems->challenge_len = elen;
1024 break;
1025 case WLAN_EID_ERP_INFO:
1026 elems->erp_info = pos;
1027 elems->erp_info_len = elen;
1028 break;
1029 case WLAN_EID_EXT_SUPP_RATES:
1030 elems->ext_supp_rates = pos;
1031 elems->ext_supp_rates_len = elen;
1032 break;
1033 case WLAN_EID_VENDOR_SPECIFIC:
1034 if (rtw_ieee802_11_parse_vendor_specific(pos, elen,
1035 elems,
1036 show_errors))
1037 unknown++;
1038 break;
1039 case WLAN_EID_RSN:
1040 elems->rsn_ie = pos;
1041 elems->rsn_ie_len = elen;
1042 break;
1043 case WLAN_EID_PWR_CAPABILITY:
1044 elems->power_cap = pos;
1045 elems->power_cap_len = elen;
1046 break;
1047 case WLAN_EID_SUPPORTED_CHANNELS:
1048 elems->supp_channels = pos;
1049 elems->supp_channels_len = elen;
1050 break;
1051 case WLAN_EID_MOBILITY_DOMAIN:
1052 elems->mdie = pos;
1053 elems->mdie_len = elen;
1054 break;
1055 case WLAN_EID_FAST_BSS_TRANSITION:
1056 elems->ftie = pos;
1057 elems->ftie_len = elen;
1058 break;
1059 case WLAN_EID_TIMEOUT_INTERVAL:
1060 elems->timeout_int = pos;
1061 elems->timeout_int_len = elen;
1062 break;
1063 case WLAN_EID_HT_CAP:
1064 elems->ht_capabilities = pos;
1065 elems->ht_capabilities_len = elen;
1066 break;
1067 case WLAN_EID_HT_OPERATION:
1068 elems->ht_operation = pos;
1069 elems->ht_operation_len = elen;
1070 break;
1071 case WLAN_EID_VHT_CAPABILITY:
1072 elems->vht_capabilities = pos;
1073 elems->vht_capabilities_len = elen;
1074 break;
1075 case WLAN_EID_VHT_OPERATION:
1076 elems->vht_operation = pos;
1077 elems->vht_operation_len = elen;
1078 break;
1079 case WLAN_EID_VHT_OP_MODE_NOTIFY:
1080 elems->vht_op_mode_notify = pos;
1081 elems->vht_op_mode_notify_len = elen;
1082 break;
1083 default:
1084 unknown++;
1085 if (!show_errors)
1086 break;
1087 DBG_871X("IEEE 802.11 element parse "
1088 "ignored unknown element (id =%d elen =%d)\n",
1089 id, elen);
1090 break;
1091 }
1092
1093 left -= elen;
1094 pos += elen;
1095 }
1096
1097 if (left)
1098 return ParseFailed;
1099
1100 return unknown ? ParseUnknown : ParseOK;
1101 }
1102
rtw_macaddr_cfg(struct device * dev,u8 * mac_addr)1103 void rtw_macaddr_cfg(struct device *dev, u8 *mac_addr)
1104 {
1105 u8 mac[ETH_ALEN];
1106 struct device_node *np = dev->of_node;
1107 const unsigned char *addr;
1108 int len;
1109
1110 if (!mac_addr)
1111 return;
1112
1113 if (rtw_initmac && mac_pton(rtw_initmac, mac)) {
1114 /* Users specify the mac address */
1115 ether_addr_copy(mac_addr, mac);
1116 } else {
1117 /* Use the mac address stored in the Efuse */
1118 ether_addr_copy(mac, mac_addr);
1119 }
1120
1121 if (is_broadcast_ether_addr(mac) || is_zero_ether_addr(mac)) {
1122 if ((addr = of_get_property(np, "local-mac-address", &len)) &&
1123 len == ETH_ALEN) {
1124 ether_addr_copy(mac_addr, addr);
1125 } else {
1126 eth_random_addr(mac_addr);
1127 DBG_871X("MAC Address from efuse error, assign random one !!!\n");
1128 }
1129 }
1130
1131 DBG_871X("rtw_macaddr_cfg MAC Address = "MAC_FMT"\n", MAC_ARG(mac_addr));
1132 }
1133
rtw_get_cipher_info(struct wlan_network * pnetwork)1134 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
1135 {
1136 u32 wpa_ielen;
1137 unsigned char *pbuf;
1138 int group_cipher = 0, pairwise_cipher = 0, is8021x = 0;
1139 int ret = _FAIL;
1140
1141 pbuf = rtw_get_wpa_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1142
1143 if (pbuf && (wpa_ielen > 0)) {
1144 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen));
1145 if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1146 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1147 pnetwork->BcnInfo.group_cipher = group_cipher;
1148 pnetwork->BcnInfo.is_8021x = is8021x;
1149 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d, is_8021x is %d",
1150 __func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.is_8021x));
1151 ret = _SUCCESS;
1152 }
1153 } else {
1154 pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1155
1156 if (pbuf && (wpa_ielen > 0)) {
1157 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n"));
1158 if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1159 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE OK!!!\n"));
1160 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1161 pnetwork->BcnInfo.group_cipher = group_cipher;
1162 pnetwork->BcnInfo.is_8021x = is8021x;
1163 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d,"
1164 "pnetwork->group_cipher is %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher,
1165 pnetwork->BcnInfo.group_cipher, pnetwork->BcnInfo.is_8021x));
1166 ret = _SUCCESS;
1167 }
1168 }
1169 }
1170
1171 return ret;
1172 }
1173
rtw_get_bcn_info(struct wlan_network * pnetwork)1174 void rtw_get_bcn_info(struct wlan_network *pnetwork)
1175 {
1176 unsigned short cap = 0;
1177 u8 bencrypt = 0;
1178 /* u8 wpa_ie[255], rsn_ie[255]; */
1179 u16 wpa_len = 0, rsn_len = 0;
1180 struct HT_info_element *pht_info = NULL;
1181 struct ieee80211_ht_cap *pht_cap = NULL;
1182 unsigned int len;
1183 unsigned char *p;
1184 __le16 le_cap;
1185
1186 memcpy((u8 *)&le_cap, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
1187 cap = le16_to_cpu(le_cap);
1188 if (cap & WLAN_CAPABILITY_PRIVACY) {
1189 bencrypt = 1;
1190 pnetwork->network.Privacy = 1;
1191 } else {
1192 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
1193 }
1194 rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len);
1195 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
1196 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
1197 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
1198 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len));
1199
1200 if (rsn_len > 0) {
1201 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1202 } else if (wpa_len > 0) {
1203 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
1204 } else {
1205 if (bencrypt)
1206 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
1207 }
1208 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
1209 pnetwork->BcnInfo.encryp_protocol));
1210 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
1211 pnetwork->BcnInfo.encryp_protocol));
1212 rtw_get_cipher_info(pnetwork);
1213
1214 /* get bwmode and ch_offset */
1215 /* parsing HT_CAP_IE */
1216 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1217 if (p && len > 0) {
1218 pht_cap = (struct ieee80211_ht_cap *)(p + 2);
1219 pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info);
1220 } else {
1221 pnetwork->BcnInfo.ht_cap_info = 0;
1222 }
1223 /* parsing HT_INFO_IE */
1224 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1225 if (p && len > 0) {
1226 pht_info = (struct HT_info_element *)(p + 2);
1227 pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
1228 } else {
1229 pnetwork->BcnInfo.ht_info_infos_0 = 0;
1230 }
1231 }
1232
1233 /* show MCS rate, unit: 100Kbps */
rtw_mcs_rate(u8 rf_type,u8 bw_40MHz,u8 short_GI,unsigned char * MCS_rate)1234 u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI, unsigned char *MCS_rate)
1235 {
1236 u16 max_rate = 0;
1237
1238 if (rf_type == RF_1T1R) {
1239 if (MCS_rate[0] & BIT(7))
1240 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1241 else if (MCS_rate[0] & BIT(6))
1242 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1243 else if (MCS_rate[0] & BIT(5))
1244 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1245 else if (MCS_rate[0] & BIT(4))
1246 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1247 else if (MCS_rate[0] & BIT(3))
1248 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1249 else if (MCS_rate[0] & BIT(2))
1250 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1251 else if (MCS_rate[0] & BIT(1))
1252 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1253 else if (MCS_rate[0] & BIT(0))
1254 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1255 } else{
1256 if (MCS_rate[1]) {
1257 if (MCS_rate[1] & BIT(7))
1258 max_rate = (bw_40MHz) ? ((short_GI)?3000:2700):((short_GI)?1444:1300);
1259 else if (MCS_rate[1] & BIT(6))
1260 max_rate = (bw_40MHz) ? ((short_GI)?2700:2430):((short_GI)?1300:1170);
1261 else if (MCS_rate[1] & BIT(5))
1262 max_rate = (bw_40MHz) ? ((short_GI)?2400:2160):((short_GI)?1156:1040);
1263 else if (MCS_rate[1] & BIT(4))
1264 max_rate = (bw_40MHz) ? ((short_GI)?1800:1620):((short_GI)?867:780);
1265 else if (MCS_rate[1] & BIT(3))
1266 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1267 else if (MCS_rate[1] & BIT(2))
1268 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1269 else if (MCS_rate[1] & BIT(1))
1270 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1271 else if (MCS_rate[1] & BIT(0))
1272 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1273 } else{
1274 if (MCS_rate[0] & BIT(7))
1275 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1276 else if (MCS_rate[0] & BIT(6))
1277 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1278 else if (MCS_rate[0] & BIT(5))
1279 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1280 else if (MCS_rate[0] & BIT(4))
1281 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1282 else if (MCS_rate[0] & BIT(3))
1283 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1284 else if (MCS_rate[0] & BIT(2))
1285 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1286 else if (MCS_rate[0] & BIT(1))
1287 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1288 else if (MCS_rate[0] & BIT(0))
1289 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1290 }
1291 }
1292 return max_rate;
1293 }
1294
rtw_action_frame_parse(const u8 * frame,u32 frame_len,u8 * category,u8 * action)1295 int rtw_action_frame_parse(const u8 *frame, u32 frame_len, u8 *category, u8 *action)
1296 {
1297 const u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr);
1298 u16 fc;
1299 u8 c;
1300 u8 a = ACT_PUBLIC_MAX;
1301
1302 fc = le16_to_cpu(((struct ieee80211_hdr_3addr *)frame)->frame_control);
1303
1304 if ((fc & (IEEE80211_FCTL_FTYPE|IEEE80211_FCTL_STYPE))
1305 != (IEEE80211_FTYPE_MGMT|IEEE80211_STYPE_ACTION)
1306 ) {
1307 return false;
1308 }
1309
1310 c = frame_body[0];
1311
1312 switch (c) {
1313 case RTW_WLAN_CATEGORY_P2P: /* vendor-specific */
1314 break;
1315 default:
1316 a = frame_body[1];
1317 }
1318
1319 if (category)
1320 *category = c;
1321 if (action)
1322 *action = a;
1323
1324 return true;
1325 }
1326
1327 static const char *_action_public_str[] = {
1328 "ACT_PUB_BSSCOEXIST",
1329 "ACT_PUB_DSE_ENABLE",
1330 "ACT_PUB_DSE_DEENABLE",
1331 "ACT_PUB_DSE_REG_LOCATION",
1332 "ACT_PUB_EXT_CHL_SWITCH",
1333 "ACT_PUB_DSE_MSR_REQ",
1334 "ACT_PUB_DSE_MSR_RPRT",
1335 "ACT_PUB_MP",
1336 "ACT_PUB_DSE_PWR_CONSTRAINT",
1337 "ACT_PUB_VENDOR",
1338 "ACT_PUB_GAS_INITIAL_REQ",
1339 "ACT_PUB_GAS_INITIAL_RSP",
1340 "ACT_PUB_GAS_COMEBACK_REQ",
1341 "ACT_PUB_GAS_COMEBACK_RSP",
1342 "ACT_PUB_TDLS_DISCOVERY_RSP",
1343 "ACT_PUB_LOCATION_TRACK",
1344 "ACT_PUB_RSVD",
1345 };
1346
action_public_str(u8 action)1347 const char *action_public_str(u8 action)
1348 {
1349 action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action;
1350 return _action_public_str[action];
1351 }
1352
