1 // SPDX-License-Identifier: GPL-2.0
2 /******************************************************************************
4 * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
6 ******************************************************************************/
10 #include <rtw_debug.h>
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 };
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 };
35 /* for adhoc-master to generate ie and provide supported-rate to fw */
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)
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
56 int rtw_get_bit_value_from_ieee_value(u8 val)
58 unsigned char dot11_rate_table[] = {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; /* last element must be zero!! */
61 while (dot11_rate_table[i] != 0) {
62 if (dot11_rate_table[i] == val)
69 bool rtw_is_cckrates_included(u8 *rate)
74 if (r == 2 || r == 4 || r == 11 || r == 22)
82 bool rtw_is_cckratesonly_included(u8 *rate)
87 if (r != 2 && r != 4 && r != 11 && r != 22)
95 int rtw_check_network_type(unsigned char *rate, int ratelen, int channel)
98 if (rtw_is_cckrates_included(rate))
99 return WIRELESS_INVALID;
102 } else { /* could be pure B, pure G, or B/G */
103 if (rtw_is_cckratesonly_included(rate))
105 else if (rtw_is_cckrates_included(rate))
106 return WIRELESS_11BG;
112 u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len, unsigned char *source,
115 memcpy((void *)pbuf, (void *)source, len);
116 *frlen = *frlen + len;
120 /* rtw_set_ie will update frame length */
127 uint *frlen /* frame length */
132 *(pbuf + 1) = (u8)len;
135 memcpy((void *)(pbuf + 2), (void *)source, len);
137 *frlen = *frlen + (len + 2);
139 return pbuf + len + 2;
142 /*----------------------------------------------------------------------------
143 index: the information element id index, limit is the limit for search
144 -----------------------------------------------------------------------------*/
145 u8 *rtw_get_ie(u8 *pbuf, sint index, sint *len, sint limit)
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
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
181 * Returns: The address of the specific IE found, or NULL
183 u8 *rtw_get_ie_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen)
186 u8 *target_ie = NULL;
191 if (!in_ie || in_len <= 0)
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];
202 memcpy(ie, &in_ie[cnt], in_ie[cnt+1]+2);
205 *ielen = in_ie[cnt+1]+2;
209 cnt += in_ie[cnt+1]+2; /* goto next */
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 search
221 * @eid: Element ID to match
223 * @oui_len: OUI length
225 * Returns: _SUCCESS: ies is updated, _FAIL: not updated
227 int rtw_ies_remove_ie(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len)
235 if (!ies || !ies_len || *ies_len <= offset)
238 start = ies + offset;
239 search_len = *ies_len - offset;
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);
248 memcpy(buf, remain_ies, remain_len);
249 memcpy(target_ie, buf, remain_len);
250 *ies_len = *ies_len - target_ielen;
254 search_len = remain_len;
263 void rtw_set_supported_rate(u8 *SupportedRates, uint mode)
265 memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX);
269 memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN);
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);
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);
290 uint rtw_get_rateset_len(u8 *rateset)
294 for (i = 0; i < 13; i++)
300 int rtw_generate_ie(struct registry_priv *pregistrypriv)
304 struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
305 u8 *ie = pdev_network->IEs;
307 /* timestamp will be inserted by hardware */
311 /* beacon interval : 2bytes */
312 *(__le16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod);/* BCN_INTERVAL; */
316 /* capability info */
319 *(__le16 *)ie |= cpu_to_le16(cap_IBSS);
321 if (pregistrypriv->preamble == PREAMBLE_SHORT)
322 *(__le16 *)ie |= cpu_to_le16(cap_ShortPremble);
324 if (pdev_network->Privacy)
325 *(__le16 *)ie |= cpu_to_le16(cap_Privacy);
331 ie = rtw_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, pdev_network->Ssid.Ssid, &sz);
333 /* supported rates */
334 if (pregistrypriv->wireless_mode == WIRELESS_11ABGN) {
335 if (pdev_network->Configuration.DSConfig > 14)
336 wireless_mode = WIRELESS_11A_5N;
338 wireless_mode = WIRELESS_11BG_24N;
340 wireless_mode = pregistrypriv->wireless_mode;
343 rtw_set_supported_rate(pdev_network->SupportedRates, wireless_mode);
345 rateLen = rtw_get_rateset_len(pdev_network->SupportedRates);
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); */
351 ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, rateLen, pdev_network->SupportedRates, &sz);
354 /* DS parameter set */
355 ie = rtw_set_ie(ie, _DSSET_IE_, 1, (u8 *)&(pdev_network->Configuration.DSConfig), &sz);
357 /* IBSS Parameter Set */
359 ie = rtw_set_ie(ie, _IBSS_PARA_IE_, 2, (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz);
362 ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz);
366 if (((pregistrypriv->wireless_mode&WIRELESS_11_5N) || (pregistrypriv->wireless_mode&WIRELESS_11_24N))
367 && (pregistrypriv->ht_enable == true)) {
371 /* pdev_network->IELength = sz; update IELength */
373 /* return _SUCCESS; */
378 unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
382 unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
384 int limit_new = limit;
388 pbuf = rtw_get_ie(pbuf, _WPA_IE_ID_, &len, limit_new);
391 /* check if oui matches... */
392 if (memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type))) {
396 /* check version... */
397 memcpy((u8 *)&le_tmp, (pbuf + 6), sizeof(val16));
399 val16 = le16_to_cpu(le_tmp);
403 *wpa_ie_len = *(pbuf + 1);
414 limit_new = limit - (pbuf - pie) - 2 - len;
427 unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
429 return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
432 int rtw_get_wpa_cipher_suite(u8 *s)
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;
448 int rtw_get_wpa2_cipher_suite(u8 *s)
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;
464 int rtw_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
466 int i, ret = _SUCCESS;
469 u8 SUITE_1X[4] = {0x00, 0x50, 0xf2, 1};
471 if (wpa_ie_len <= 0) {
472 /* No WPA IE - fail silently */
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))) {
484 left = wpa_ie_len - 8;
487 if (left >= WPA_SELECTOR_LEN) {
488 *group_cipher = rtw_get_wpa_cipher_suite(pos);
490 pos += WPA_SELECTOR_LEN;
491 left -= WPA_SELECTOR_LEN;
493 } else if (left > 0) {
494 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
499 /* pairwise_cipher */
501 /* count = le16_to_cpu(*(u16*)pos); */
502 count = RTW_GET_LE16(pos);
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));
512 for (i = 0; i < count; i++) {
513 *pairwise_cipher |= rtw_get_wpa_cipher_suite(pos);
515 pos += WPA_SELECTOR_LEN;
516 left -= WPA_SELECTOR_LEN;
519 } else if (left == 1) {
520 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
527 if (!memcmp(pos, SUITE_1X, 4)) {
528 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s : there has 802.1x auth\n", __func__));
537 int rtw_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x)
539 int i, ret = _SUCCESS;
542 u8 SUITE_1X[4] = {0x00, 0x0f, 0xac, 0x01};
544 if (rsn_ie_len <= 0) {
545 /* No RSN IE - fail silently */
549 if ((*rsn_ie != _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2))) {
555 left = rsn_ie_len - 4;
558 if (left >= RSN_SELECTOR_LEN) {
559 *group_cipher = rtw_get_wpa2_cipher_suite(pos);
561 pos += RSN_SELECTOR_LEN;
562 left -= RSN_SELECTOR_LEN;
564 } else if (left > 0) {
565 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left));
569 /* pairwise_cipher */
571 /* count = le16_to_cpu(*(u16*)pos); */
572 count = RTW_GET_LE16(pos);
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));
582 for (i = 0; i < count; i++) {
583 *pairwise_cipher |= rtw_get_wpa2_cipher_suite(pos);
585 pos += RSN_SELECTOR_LEN;
586 left -= RSN_SELECTOR_LEN;
589 } else if (left == 1) {
590 RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__));
598 if (!memcmp(pos, SUITE_1X, 4)) {
599 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s (): there has 802.1x auth\n", __func__));
608 /* ifdef CONFIG_WAPI_SUPPORT */
609 int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len)
614 u8 wapi_oui1[4] = {0x0, 0x14, 0x72, 0x01};
615 u8 wapi_oui2[4] = {0x0, 0x14, 0x72, 0x02};
620 if (!in_ie || in_len <= 0)
623 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
625 while (cnt < in_len) {
626 authmode = in_ie[cnt];
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))) {
632 memcpy(wapi_ie, &in_ie[cnt], in_ie[cnt+1]+2);
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]));
642 *wapi_len = in_ie[cnt+1]+2;
644 cnt += in_ie[cnt+1]+2; /* get next */
646 cnt += in_ie[cnt+1]+2; /* get next */
657 void rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len)
659 u8 authmode, sec_idx, i;
660 u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
663 /* Search required WPA or WPA2 IE and copy to sec_ie[ ] */
665 cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_);
669 while (cnt < in_len) {
670 authmode = in_ie[cnt];
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));
676 memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt+1]+2);
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]));
685 *wpa_len = in_ie[cnt+1]+2;
686 cnt += in_ie[cnt+1]+2; /* get next */
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));
692 memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt+1]+2);
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]));
701 *rsn_len = in_ie[cnt+1]+2;
702 cnt += in_ie[cnt+1]+2; /* get next */
704 cnt += in_ie[cnt+1]+2; /* get next */
710 u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen)
713 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
720 if ((eid == _WPA_IE_ID_) && (!memcmp(&ie_ptr[2], wps_oui, 4))) {
721 /* DBG_8192C("==> found WPS_IE.....\n"); */
722 *wps_ielen = ie_ptr[1]+2;
729 * rtw_get_wps_ie - Search WPS IE from a series of IEs
730 * @in_ie: Address of IEs to search
731 * @in_len: Length limit from in_ie
732 * @wps_ie: If not NULL and WPS IE is found, WPS IE will be copied to the buf starting from wps_ie
733 * @wps_ielen: If not NULL and WPS IE is found, will set to the length of the entire WPS IE
735 * Returns: The address of the WPS IE found, or NULL
737 u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen)
740 u8 *wpsie_ptr = NULL;
741 u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04};
746 if (!in_ie || in_len <= 0)
751 while (cnt < in_len) {
754 if ((eid == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], wps_oui, 4))) {
755 wpsie_ptr = &in_ie[cnt];
758 memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2);
761 *wps_ielen = in_ie[cnt+1]+2;
763 cnt += in_ie[cnt+1]+2;
767 cnt += in_ie[cnt+1]+2; /* goto next */
775 * rtw_get_wps_attr - Search a specific WPS attribute from a given WPS IE
776 * @wps_ie: Address of WPS IE to search
777 * @wps_ielen: Length limit from wps_ie
778 * @target_attr_id: The attribute ID of WPS attribute to search
779 * @buf_attr: If not NULL and the WPS attribute is found, WPS attribute will be copied to the buf starting from buf_attr
780 * @len_attr: If not NULL and the WPS attribute is found, will set to the length of the entire WPS attribute
782 * Returns: the address of the specific WPS attribute found, or NULL
784 u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_attr, u32 *len_attr)
787 u8 *target_attr_ptr = NULL;
788 u8 wps_oui[4] = {0x00, 0x50, 0xF2, 0x04};
793 if ((wps_ie[0] != _VENDOR_SPECIFIC_IE_) ||
794 (memcmp(wps_ie + 2, wps_oui, 4))) {
798 /* 6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */
799 attr_ptr = wps_ie + 6; /* goto first attr */
801 while (attr_ptr - wps_ie < wps_ielen) {
802 /* 4 = 2(Attribute ID) + 2(Length) */
803 u16 attr_id = RTW_GET_BE16(attr_ptr);
804 u16 attr_data_len = RTW_GET_BE16(attr_ptr + 2);
805 u16 attr_len = attr_data_len + 4;
807 /* DBG_871X("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); */
808 if (attr_id == target_attr_id) {
809 target_attr_ptr = attr_ptr;
812 memcpy(buf_attr, attr_ptr, attr_len);
815 *len_attr = attr_len;
819 attr_ptr += attr_len; /* goto next */
823 return target_attr_ptr;
827 * rtw_get_wps_attr_content - Search a specific WPS attribute content from a given WPS IE
828 * @wps_ie: Address of WPS IE to search
829 * @wps_ielen: Length limit from wps_ie
830 * @target_attr_id: The attribute ID of WPS attribute to search
831 * @buf_content: If not NULL and the WPS attribute is found, WPS attribute content will be copied to the buf starting from buf_content
832 * @len_content: If not NULL and the WPS attribute is found, will set to the length of the WPS attribute content
834 * Returns: the address of the specific WPS attribute content found, or NULL
836 u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id, u8 *buf_content, uint *len_content)
844 attr_ptr = rtw_get_wps_attr(wps_ie, wps_ielen, target_attr_id, NULL, &attr_len);
846 if (attr_ptr && attr_len) {
848 memcpy(buf_content, attr_ptr+4, attr_len-4);
851 *len_content = attr_len-4;
859 static int rtw_ieee802_11_parse_vendor_specific(u8 *pos, uint elen,
860 struct rtw_ieee802_11_elems *elems,
865 /* first 3 bytes in vendor specific information element are the IEEE
866 * OUI of the vendor. The following byte is used a vendor specific
870 DBG_871X("short vendor specific "
871 "information element ignored (len =%lu)\n",
872 (unsigned long) elen);
877 oui = RTW_GET_BE24(pos);
880 /* Microsoft/Wi-Fi information elements are further typed and
884 /* Microsoft OUI (00:50:F2) with OUI Type 1:
885 * real WPA information element */
887 elems->wpa_ie_len = elen;
889 case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */
891 DBG_871X("short WME "
892 "information element ignored "
894 (unsigned long) elen);
898 case WME_OUI_SUBTYPE_INFORMATION_ELEMENT:
899 case WME_OUI_SUBTYPE_PARAMETER_ELEMENT:
901 elems->wme_len = elen;
903 case WME_OUI_SUBTYPE_TSPEC_ELEMENT:
904 elems->wme_tspec = pos;
905 elems->wme_tspec_len = elen;
908 DBG_871X("unknown WME "
909 "information element ignored "
910 "(subtype =%d len =%lu)\n",
911 pos[4], (unsigned long) elen);
916 /* Wi-Fi Protected Setup (WPS) IE */
918 elems->wps_ie_len = elen;
921 DBG_871X("Unknown Microsoft "
922 "information element ignored "
923 "(type =%d len =%lu)\n",
924 pos[3], (unsigned long) elen);
931 case VENDOR_HT_CAPAB_OUI_TYPE:
932 elems->vendor_ht_cap = pos;
933 elems->vendor_ht_cap_len = elen;
936 DBG_871X("Unknown Broadcom "
937 "information element ignored "
938 "(type =%d len =%lu)\n",
939 pos[3], (unsigned long) elen);
945 DBG_871X("unknown vendor specific information "
946 "element ignored (vendor OUI %02x:%02x:%02x "
948 pos[0], pos[1], pos[2], (unsigned long) elen);
956 * ieee802_11_parse_elems - Parse information elements in management frames
957 * @start: Pointer to the start of IEs
958 * @len: Length of IE buffer in octets
959 * @elems: Data structure for parsed elements
960 * @show_errors: Whether to show parsing errors in debug log
961 * Returns: Parsing result
963 ParseRes rtw_ieee802_11_parse_elems(u8 *start, uint len,
964 struct rtw_ieee802_11_elems *elems,
971 memset(elems, 0, sizeof(*elems));
982 DBG_871X("IEEE 802.11 element "
983 "parse failed (id =%d elen =%d "
985 id, elen, (unsigned long) left);
993 elems->ssid_len = elen;
995 case WLAN_EID_SUPP_RATES:
996 elems->supp_rates = pos;
997 elems->supp_rates_len = elen;
999 case WLAN_EID_FH_PARAMS:
1000 elems->fh_params = pos;
1001 elems->fh_params_len = elen;
1003 case WLAN_EID_DS_PARAMS:
1004 elems->ds_params = pos;
1005 elems->ds_params_len = elen;
1007 case WLAN_EID_CF_PARAMS:
1008 elems->cf_params = pos;
1009 elems->cf_params_len = elen;
1013 elems->tim_len = elen;
1015 case WLAN_EID_IBSS_PARAMS:
1016 elems->ibss_params = pos;
1017 elems->ibss_params_len = elen;
1019 case WLAN_EID_CHALLENGE:
1020 elems->challenge = pos;
1021 elems->challenge_len = elen;
1023 case WLAN_EID_ERP_INFO:
1024 elems->erp_info = pos;
1025 elems->erp_info_len = elen;
1027 case WLAN_EID_EXT_SUPP_RATES:
1028 elems->ext_supp_rates = pos;
1029 elems->ext_supp_rates_len = elen;
1031 case WLAN_EID_VENDOR_SPECIFIC:
1032 if (rtw_ieee802_11_parse_vendor_specific(pos, elen,
1038 elems->rsn_ie = pos;
1039 elems->rsn_ie_len = elen;
1041 case WLAN_EID_PWR_CAPABILITY:
1042 elems->power_cap = pos;
1043 elems->power_cap_len = elen;
1045 case WLAN_EID_SUPPORTED_CHANNELS:
1046 elems->supp_channels = pos;
1047 elems->supp_channels_len = elen;
1049 case WLAN_EID_MOBILITY_DOMAIN:
1051 elems->mdie_len = elen;
1053 case WLAN_EID_FAST_BSS_TRANSITION:
1055 elems->ftie_len = elen;
1057 case WLAN_EID_TIMEOUT_INTERVAL:
1058 elems->timeout_int = pos;
1059 elems->timeout_int_len = elen;
1061 case WLAN_EID_HT_CAP:
1062 elems->ht_capabilities = pos;
1063 elems->ht_capabilities_len = elen;
1065 case WLAN_EID_HT_OPERATION:
1066 elems->ht_operation = pos;
1067 elems->ht_operation_len = elen;
1069 case WLAN_EID_VHT_CAPABILITY:
1070 elems->vht_capabilities = pos;
1071 elems->vht_capabilities_len = elen;
1073 case WLAN_EID_VHT_OPERATION:
1074 elems->vht_operation = pos;
1075 elems->vht_operation_len = elen;
1077 case WLAN_EID_VHT_OP_MODE_NOTIFY:
1078 elems->vht_op_mode_notify = pos;
1079 elems->vht_op_mode_notify_len = elen;
1085 DBG_871X("IEEE 802.11 element parse "
1086 "ignored unknown element (id =%d elen =%d)\n",
1098 return unknown ? ParseUnknown : ParseOK;
1101 void rtw_macaddr_cfg(struct device *dev, u8 *mac_addr)
1104 struct device_node *np = dev->of_node;
1105 const unsigned char *addr;
1111 if (rtw_initmac && mac_pton(rtw_initmac, mac)) {
1112 /* Users specify the mac address */
1113 ether_addr_copy(mac_addr, mac);
1115 /* Use the mac address stored in the Efuse */
1116 ether_addr_copy(mac, mac_addr);
1119 if (is_broadcast_ether_addr(mac) || is_zero_ether_addr(mac)) {
1120 if ((addr = of_get_property(np, "local-mac-address", &len)) &&
1122 ether_addr_copy(mac_addr, addr);
1124 eth_random_addr(mac_addr);
1125 DBG_871X("MAC Address from efuse error, assign random one !!!\n");
1129 DBG_871X("rtw_macaddr_cfg MAC Address = "MAC_FMT"\n", MAC_ARG(mac_addr));
1132 static int rtw_get_cipher_info(struct wlan_network *pnetwork)
1135 unsigned char *pbuf;
1136 int group_cipher = 0, pairwise_cipher = 0, is8021x = 0;
1139 pbuf = rtw_get_wpa_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1141 if (pbuf && (wpa_ielen > 0)) {
1142 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen));
1143 if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1144 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1145 pnetwork->BcnInfo.group_cipher = group_cipher;
1146 pnetwork->BcnInfo.is_8021x = is8021x;
1147 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d, is_8021x is %d",
1148 __func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.is_8021x));
1152 pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12);
1154 if (pbuf && (wpa_ielen > 0)) {
1155 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n"));
1156 if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) {
1157 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE OK!!!\n"));
1158 pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher;
1159 pnetwork->BcnInfo.group_cipher = group_cipher;
1160 pnetwork->BcnInfo.is_8021x = is8021x;
1161 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d,"
1162 "pnetwork->group_cipher is %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher,
1163 pnetwork->BcnInfo.group_cipher, pnetwork->BcnInfo.is_8021x));
1172 void rtw_get_bcn_info(struct wlan_network *pnetwork)
1174 unsigned short cap = 0;
1176 /* u8 wpa_ie[255], rsn_ie[255]; */
1177 u16 wpa_len = 0, rsn_len = 0;
1178 struct HT_info_element *pht_info = NULL;
1179 struct ieee80211_ht_cap *pht_cap = NULL;
1184 memcpy((u8 *)&le_cap, rtw_get_capability_from_ie(pnetwork->network.IEs), 2);
1185 cap = le16_to_cpu(le_cap);
1186 if (cap & WLAN_CAPABILITY_PRIVACY) {
1188 pnetwork->network.Privacy = 1;
1190 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS;
1192 rtw_get_sec_ie(pnetwork->network.IEs, pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len);
1193 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid));
1194 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_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));
1199 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1200 } else if (wpa_len > 0) {
1201 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA;
1204 pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP;
1206 RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n",
1207 pnetwork->BcnInfo.encryp_protocol));
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 rtw_get_cipher_info(pnetwork);
1212 /* get bwmode and ch_offset */
1213 /* parsing HT_CAP_IE */
1214 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1216 pht_cap = (struct ieee80211_ht_cap *)(p + 2);
1217 pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info);
1219 pnetwork->BcnInfo.ht_cap_info = 0;
1221 /* parsing HT_INFO_IE */
1222 p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_);
1224 pht_info = (struct HT_info_element *)(p + 2);
1225 pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0];
1227 pnetwork->BcnInfo.ht_info_infos_0 = 0;
1231 /* show MCS rate, unit: 100Kbps */
1232 u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI, unsigned char *MCS_rate)
1236 if (rf_type == RF_1T1R) {
1237 if (MCS_rate[0] & BIT(7))
1238 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1239 else if (MCS_rate[0] & BIT(6))
1240 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1241 else if (MCS_rate[0] & BIT(5))
1242 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1243 else if (MCS_rate[0] & BIT(4))
1244 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1245 else if (MCS_rate[0] & BIT(3))
1246 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1247 else if (MCS_rate[0] & BIT(2))
1248 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1249 else if (MCS_rate[0] & BIT(1))
1250 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1251 else if (MCS_rate[0] & BIT(0))
1252 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1255 if (MCS_rate[1] & BIT(7))
1256 max_rate = (bw_40MHz) ? ((short_GI)?3000:2700):((short_GI)?1444:1300);
1257 else if (MCS_rate[1] & BIT(6))
1258 max_rate = (bw_40MHz) ? ((short_GI)?2700:2430):((short_GI)?1300:1170);
1259 else if (MCS_rate[1] & BIT(5))
1260 max_rate = (bw_40MHz) ? ((short_GI)?2400:2160):((short_GI)?1156:1040);
1261 else if (MCS_rate[1] & BIT(4))
1262 max_rate = (bw_40MHz) ? ((short_GI)?1800:1620):((short_GI)?867:780);
1263 else if (MCS_rate[1] & BIT(3))
1264 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1265 else if (MCS_rate[1] & BIT(2))
1266 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1267 else if (MCS_rate[1] & BIT(1))
1268 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1269 else if (MCS_rate[1] & BIT(0))
1270 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1272 if (MCS_rate[0] & BIT(7))
1273 max_rate = (bw_40MHz) ? ((short_GI)?1500:1350):((short_GI)?722:650);
1274 else if (MCS_rate[0] & BIT(6))
1275 max_rate = (bw_40MHz) ? ((short_GI)?1350:1215):((short_GI)?650:585);
1276 else if (MCS_rate[0] & BIT(5))
1277 max_rate = (bw_40MHz) ? ((short_GI)?1200:1080):((short_GI)?578:520);
1278 else if (MCS_rate[0] & BIT(4))
1279 max_rate = (bw_40MHz) ? ((short_GI)?900:810):((short_GI)?433:390);
1280 else if (MCS_rate[0] & BIT(3))
1281 max_rate = (bw_40MHz) ? ((short_GI)?600:540):((short_GI)?289:260);
1282 else if (MCS_rate[0] & BIT(2))
1283 max_rate = (bw_40MHz) ? ((short_GI)?450:405):((short_GI)?217:195);
1284 else if (MCS_rate[0] & BIT(1))
1285 max_rate = (bw_40MHz) ? ((short_GI)?300:270):((short_GI)?144:130);
1286 else if (MCS_rate[0] & BIT(0))
1287 max_rate = (bw_40MHz) ? ((short_GI)?150:135):((short_GI)?72:65);
1293 int rtw_action_frame_parse(const u8 *frame, u32 frame_len, u8 *category, u8 *action)
1295 const u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr);
1298 u8 a = ACT_PUBLIC_MAX;
1300 fc = le16_to_cpu(((struct ieee80211_hdr_3addr *)frame)->frame_control);
1302 if ((fc & (IEEE80211_FCTL_FTYPE|IEEE80211_FCTL_STYPE))
1303 != (IEEE80211_FTYPE_MGMT|IEEE80211_STYPE_ACTION)
1311 case RTW_WLAN_CATEGORY_P2P: /* vendor-specific */
1325 static const char *_action_public_str[] = {
1326 "ACT_PUB_BSSCOEXIST",
1327 "ACT_PUB_DSE_ENABLE",
1328 "ACT_PUB_DSE_DEENABLE",
1329 "ACT_PUB_DSE_REG_LOCATION",
1330 "ACT_PUB_EXT_CHL_SWITCH",
1331 "ACT_PUB_DSE_MSR_REQ",
1332 "ACT_PUB_DSE_MSR_RPRT",
1334 "ACT_PUB_DSE_PWR_CONSTRAINT",
1336 "ACT_PUB_GAS_INITIAL_REQ",
1337 "ACT_PUB_GAS_INITIAL_RSP",
1338 "ACT_PUB_GAS_COMEBACK_REQ",
1339 "ACT_PUB_GAS_COMEBACK_RSP",
1340 "ACT_PUB_TDLS_DISCOVERY_RSP",
1341 "ACT_PUB_LOCATION_TRACK",
1345 const char *action_public_str(u8 action)
1347 action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action;
1348 return _action_public_str[action];