/****************************************************************************** * * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. * * This program is free software; you can redistribute it and/or modify it * under the terms of version 2 of the GNU General Public License as * published by the Free Software Foundation. * * This program is distributed in the hope that it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * * You should have received a copy of the GNU General Public License along with * this program; if not, write to the Free Software Foundation, Inc., * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA * * ******************************************************************************/ #define _IEEE80211_C #include #include #include #include #include #include u8 RTW_WPA_OUI_TYPE[] = { 0x00, 0x50, 0xf2, 1 }; u16 RTW_WPA_VERSION = 1; u8 WPA_AUTH_KEY_MGMT_NONE[] = { 0x00, 0x50, 0xf2, 0 }; u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x50, 0xf2, 1 }; u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x50, 0xf2, 2 }; u8 WPA_CIPHER_SUITE_NONE[] = { 0x00, 0x50, 0xf2, 0 }; u8 WPA_CIPHER_SUITE_WEP40[] = { 0x00, 0x50, 0xf2, 1 }; u8 WPA_CIPHER_SUITE_TKIP[] = { 0x00, 0x50, 0xf2, 2 }; u8 WPA_CIPHER_SUITE_WRAP[] = { 0x00, 0x50, 0xf2, 3 }; u8 WPA_CIPHER_SUITE_CCMP[] = { 0x00, 0x50, 0xf2, 4 }; u8 WPA_CIPHER_SUITE_WEP104[] = { 0x00, 0x50, 0xf2, 5 }; u16 RSN_VERSION_BSD = 1; u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X[] = { 0x00, 0x0f, 0xac, 1 }; u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X[] = { 0x00, 0x0f, 0xac, 2 }; u8 RSN_CIPHER_SUITE_NONE[] = { 0x00, 0x0f, 0xac, 0 }; u8 RSN_CIPHER_SUITE_WEP40[] = { 0x00, 0x0f, 0xac, 1 }; u8 RSN_CIPHER_SUITE_TKIP[] = { 0x00, 0x0f, 0xac, 2 }; u8 RSN_CIPHER_SUITE_WRAP[] = { 0x00, 0x0f, 0xac, 3 }; u8 RSN_CIPHER_SUITE_CCMP[] = { 0x00, 0x0f, 0xac, 4 }; u8 RSN_CIPHER_SUITE_WEP104[] = { 0x00, 0x0f, 0xac, 5 }; /* */ /* for adhoc-master to generate ie and provide supported-rate to fw */ /* */ static u8 WIFI_CCKRATES[] = { (IEEE80211_CCK_RATE_1MB | IEEE80211_BASIC_RATE_MASK), (IEEE80211_CCK_RATE_2MB | IEEE80211_BASIC_RATE_MASK), (IEEE80211_CCK_RATE_5MB | IEEE80211_BASIC_RATE_MASK), (IEEE80211_CCK_RATE_11MB | IEEE80211_BASIC_RATE_MASK) }; static u8 WIFI_OFDMRATES[] = { (IEEE80211_OFDM_RATE_6MB), (IEEE80211_OFDM_RATE_9MB), (IEEE80211_OFDM_RATE_12MB), (IEEE80211_OFDM_RATE_18MB), (IEEE80211_OFDM_RATE_24MB), IEEE80211_OFDM_RATE_36MB, IEEE80211_OFDM_RATE_48MB, IEEE80211_OFDM_RATE_54MB }; int rtw_get_bit_value_from_ieee_value(u8 val) { unsigned char dot11_rate_table[] = { 2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; /* last element must be zero!! */ int i = 0; while (dot11_rate_table[i] != 0) { if (dot11_rate_table[i] == val) return BIT(i); i++; } return 0; } uint rtw_is_cckrates_included(u8 *rate) { u32 i = 0; while (rate[i] != 0) { if ((((rate[i]) & 0x7f) == 2) || (((rate[i]) & 0x7f) == 4) || (((rate[i]) & 0x7f) == 11) || (((rate[i]) & 0x7f) == 22)) return true; i++; } return false; } uint rtw_is_cckratesonly_included(u8 *rate) { u32 i = 0; while (rate[i] != 0) { if ((((rate[i]) & 0x7f) != 2) && (((rate[i]) & 0x7f) != 4) && (((rate[i]) & 0x7f) != 11) && (((rate[i]) & 0x7f) != 22)) return false; i++; } return true; } int rtw_check_network_type(unsigned char *rate, int ratelen, int channel) { if (channel > 14) { if ((rtw_is_cckrates_included(rate)) == true) return WIRELESS_INVALID; else return WIRELESS_11A; } else { /* could be pure B, pure G, or B/G */ if ((rtw_is_cckratesonly_included(rate)) == true) return WIRELESS_11B; else if ((rtw_is_cckrates_included(rate)) == true) return WIRELESS_11BG; else return WIRELESS_11G; } } u8 *rtw_set_fixed_ie(unsigned char *pbuf, unsigned int len, unsigned char *source, unsigned int *frlen) { memcpy((void *)pbuf, (void *)source, len); *frlen = *frlen + len; return pbuf + len; } /* rtw_set_ie will update frame length */ u8 *rtw_set_ie ( u8 *pbuf, int index, uint len, u8 *source, uint *frlen /* frame length */ ) { *pbuf = (u8)index; *(pbuf + 1) = (u8)len; if (len > 0) memcpy((void *)(pbuf + 2), (void *)source, len); *frlen = *frlen + (len + 2); return pbuf + len + 2; } inline u8 *rtw_set_ie_ch_switch (u8 *buf, u32 *buf_len, u8 ch_switch_mode, u8 new_ch, u8 ch_switch_cnt) { u8 ie_data[3]; ie_data[0] = ch_switch_mode; ie_data[1] = new_ch; ie_data[2] = ch_switch_cnt; return rtw_set_ie(buf, WLAN_EID_CHANNEL_SWITCH, 3, ie_data, buf_len); } inline u8 secondary_ch_offset_to_hal_ch_offset(u8 ch_offset) { if (ch_offset == SCN) return HAL_PRIME_CHNL_OFFSET_DONT_CARE; else if (ch_offset == SCA) return HAL_PRIME_CHNL_OFFSET_UPPER; else if (ch_offset == SCB) return HAL_PRIME_CHNL_OFFSET_LOWER; return HAL_PRIME_CHNL_OFFSET_DONT_CARE; } inline u8 hal_ch_offset_to_secondary_ch_offset(u8 ch_offset) { if (ch_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) return SCN; else if (ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER) return SCB; else if (ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) return SCA; return SCN; } inline u8 *rtw_set_ie_secondary_ch_offset(u8 *buf, u32 *buf_len, u8 secondary_ch_offset) { return rtw_set_ie(buf, WLAN_EID_SECONDARY_CHANNEL_OFFSET, 1, &secondary_ch_offset, buf_len); } inline u8 *rtw_set_ie_mesh_ch_switch_parm(u8 *buf, u32 *buf_len, u8 ttl, u8 flags, u16 reason, u16 precedence) { u8 ie_data[6]; ie_data[0] = ttl; ie_data[1] = flags; *(u16 *)(ie_data+2) = cpu_to_le16(reason); *(u16 *)(ie_data+4) = cpu_to_le16(precedence); return rtw_set_ie(buf, 0x118, 6, ie_data, buf_len); } /*---------------------------------------------------------------------------- index: the information element id index, limit is the limit for search -----------------------------------------------------------------------------*/ u8 *rtw_get_ie(u8 *pbuf, int index, int *len, int limit) { int tmp, i; u8 *p; if (limit < 1) { return NULL; } p = pbuf; i = 0; *len = 0; while (1) { if (*p == index) { *len = *(p + 1); return p; } else { tmp = *(p + 1); p += (tmp + 2); i += (tmp + 2); } if (i >= limit) break; } return NULL; } /** * rtw_get_ie_ex - Search specific IE from a series of IEs * @in_ie: Address of IEs to search * @in_len: Length limit from in_ie * @eid: Element ID to match * @oui: OUI to match * @oui_len: OUI length * @ie: If not NULL and the specific IE is found, the IE will be copied to the buf starting from the specific IE * @ielen: If not NULL and the specific IE is found, will set to the length of the entire IE * * Returns: The address of the specific IE found, or NULL */ u8 *rtw_get_ie_ex(u8 *in_ie, uint in_len, u8 eid, u8 *oui, u8 oui_len, u8 *ie, uint *ielen) { uint cnt; u8 *target_ie = NULL; if (ielen) *ielen = 0; if (!in_ie || in_len <= 0) return target_ie; cnt = 0; while (cnt < in_len) { if (eid == in_ie[cnt] && (!oui || !memcmp(&in_ie[cnt+2], oui, oui_len))) { target_ie = &in_ie[cnt]; if (ie) memcpy(ie, &in_ie[cnt], in_ie[cnt+1]+2); if (ielen) *ielen = in_ie[cnt+1]+2; break; } else { cnt += in_ie[cnt+1]+2; /* goto next */ } } return target_ie; } /** * rtw_ies_remove_ie - Find matching IEs and remove * @ies: Address of IEs to search * @ies_len: Pointer of length of ies, will update to new length * @offset: The offset to start scarch * @eid: Element ID to match * @oui: OUI to match * @oui_len: OUI length * * Returns: _SUCCESS: ies is updated, _FAIL: not updated */ int rtw_ies_remove_ie(u8 *ies, uint *ies_len, uint offset, u8 eid, u8 *oui, u8 oui_len) { int ret = _FAIL; u8 *target_ie; u32 target_ielen; u8 *start; uint search_len; if (!ies || !ies_len || *ies_len <= offset) goto exit; start = ies + offset; search_len = *ies_len - offset; while (1) { target_ie = rtw_get_ie_ex(start, search_len, eid, oui, oui_len, NULL, &target_ielen); if (target_ie && target_ielen) { u8 buf[MAX_IE_SZ] = {0}; u8 *remain_ies = target_ie + target_ielen; uint remain_len = search_len - (remain_ies - start); memcpy(buf, remain_ies, remain_len); memcpy(target_ie, buf, remain_len); *ies_len = *ies_len - target_ielen; ret = _SUCCESS; start = target_ie; search_len = remain_len; } else { break; } } exit: return ret; } void rtw_set_supported_rate(u8 *SupportedRates, uint mode) { memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX); switch (mode) { case WIRELESS_11B: memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN); break; case WIRELESS_11G: case WIRELESS_11A: case WIRELESS_11_5N: case WIRELESS_11A_5N:/* Todo: no basic rate for ofdm ? */ memcpy(SupportedRates, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN); break; case WIRELESS_11BG: case WIRELESS_11G_24N: case WIRELESS_11_24N: case WIRELESS_11BG_24N: memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN); memcpy(SupportedRates + IEEE80211_CCK_RATE_LEN, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN); break; } } uint rtw_get_rateset_len(u8 *rateset) { uint i = 0; while (1) { if ((rateset[i]) == 0) break; if (i > 12) break; i++; } return i; } int rtw_generate_ie(struct registry_priv *pregistrypriv) { u8 wireless_mode; int sz = 0, rateLen; struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network; u8 *ie = pdev_network->IEs; /* timestamp will be inserted by hardware */ sz += 8; ie += sz; /* beacon interval : 2bytes */ *(__le16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod);/* BCN_INTERVAL; */ sz += 2; ie += 2; /* capability info */ *(u16 *)ie = 0; *(__le16 *)ie |= cpu_to_le16(cap_IBSS); if (pregistrypriv->preamble == PREAMBLE_SHORT) *(__le16 *)ie |= cpu_to_le16(cap_ShortPremble); if (pdev_network->Privacy) *(__le16 *)ie |= cpu_to_le16(cap_Privacy); sz += 2; ie += 2; /* SSID */ ie = rtw_set_ie(ie, _SSID_IE_, pdev_network->Ssid.SsidLength, pdev_network->Ssid.Ssid, &sz); /* supported rates */ if (pregistrypriv->wireless_mode == WIRELESS_11ABGN) { if (pdev_network->Configuration.DSConfig > 14) wireless_mode = WIRELESS_11A_5N; else wireless_mode = WIRELESS_11BG_24N; } else { wireless_mode = pregistrypriv->wireless_mode; } rtw_set_supported_rate(pdev_network->SupportedRates, wireless_mode); rateLen = rtw_get_rateset_len(pdev_network->SupportedRates); if (rateLen > 8) { ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, 8, pdev_network->SupportedRates, &sz); /* ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); */ } else { ie = rtw_set_ie(ie, _SUPPORTEDRATES_IE_, rateLen, pdev_network->SupportedRates, &sz); } /* DS parameter set */ ie = rtw_set_ie(ie, _DSSET_IE_, 1, (u8 *)&(pdev_network->Configuration.DSConfig), &sz); /* IBSS Parameter Set */ ie = rtw_set_ie(ie, _IBSS_PARA_IE_, 2, (u8 *)&(pdev_network->Configuration.ATIMWindow), &sz); if (rateLen > 8) ie = rtw_set_ie(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); return sz; } unsigned char *rtw_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit) { int len; u16 val16; __le16 le_tmp; unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01}; u8 *pbuf = pie; int limit_new = limit; while (1) { pbuf = rtw_get_ie(pbuf, _WPA_IE_ID_, &len, limit_new); if (pbuf) { /* check if oui matches... */ if (memcmp((pbuf + 2), wpa_oui_type, sizeof (wpa_oui_type))) goto check_next_ie; /* check version... */ memcpy((u8 *)&le_tmp, (pbuf + 6), sizeof(val16)); val16 = le16_to_cpu(le_tmp); if (val16 != 0x0001) goto check_next_ie; *wpa_ie_len = *(pbuf + 1); return pbuf; } else { *wpa_ie_len = 0; return NULL; } check_next_ie: limit_new = limit - (pbuf - pie) - 2 - len; if (limit_new <= 0) break; pbuf += (2 + len); } *wpa_ie_len = 0; return NULL; } unsigned char *rtw_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit) { return rtw_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit); } int rtw_get_wpa_cipher_suite(u8 *s) { if (!memcmp(s, WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN)) return WPA_CIPHER_NONE; if (!memcmp(s, WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN)) return WPA_CIPHER_WEP40; if (!memcmp(s, WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN)) return WPA_CIPHER_TKIP; if (!memcmp(s, WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN)) return WPA_CIPHER_CCMP; if (!memcmp(s, WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN)) return WPA_CIPHER_WEP104; return 0; } int rtw_get_wpa2_cipher_suite(u8 *s) { if (!memcmp(s, RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN)) return WPA_CIPHER_NONE; if (!memcmp(s, RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN)) return WPA_CIPHER_WEP40; if (!memcmp(s, RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN)) return WPA_CIPHER_TKIP; if (!memcmp(s, RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN)) return WPA_CIPHER_CCMP; if (!memcmp(s, RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN)) return WPA_CIPHER_WEP104; return 0; } int rtw_parse_wpa_ie(u8 *wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x) { int i, ret = _SUCCESS; int left, count; u8 *pos; u8 SUITE_1X[4] = {0x00, 0x50, 0xf2, 1}; if (wpa_ie_len <= 0) { /* No WPA IE - fail silently */ return _FAIL; } if ((*wpa_ie != _WPA_IE_ID_) || (*(wpa_ie+1) != (u8)(wpa_ie_len - 2)) || (memcmp(wpa_ie+2, RTW_WPA_OUI_TYPE, WPA_SELECTOR_LEN))) return _FAIL; pos = wpa_ie; pos += 8; left = wpa_ie_len - 8; /* group_cipher */ if (left >= WPA_SELECTOR_LEN) { *group_cipher = rtw_get_wpa_cipher_suite(pos); pos += WPA_SELECTOR_LEN; left -= WPA_SELECTOR_LEN; } else if (left > 0) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left)); return _FAIL; } /* pairwise_cipher */ if (left >= 2) { count = get_unaligned_le16(pos); pos += 2; left -= 2; if (count == 0 || left < count * WPA_SELECTOR_LEN) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), " "count %u left %u", __func__, count, left)); return _FAIL; } for (i = 0; i < count; i++) { *pairwise_cipher |= rtw_get_wpa_cipher_suite(pos); pos += WPA_SELECTOR_LEN; left -= WPA_SELECTOR_LEN; } } else if (left == 1) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__)); return _FAIL; } if (is_8021x) { if (left >= 6) { pos += 2; if (!memcmp(pos, SUITE_1X, 4)) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s : there has 802.1x auth\n", __func__)); *is_8021x = 1; } } } return ret; } int rtw_parse_wpa2_ie(u8 *rsn_ie, int rsn_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x) { int i, ret = _SUCCESS; int left, count; u8 *pos; u8 SUITE_1X[4] = {0x00, 0x0f, 0xac, 0x01}; if (rsn_ie_len <= 0) { /* No RSN IE - fail silently */ return _FAIL; } if ((*rsn_ie != _WPA2_IE_ID_) || (*(rsn_ie+1) != (u8)(rsn_ie_len - 2))) return _FAIL; pos = rsn_ie; pos += 4; left = rsn_ie_len - 4; /* group_cipher */ if (left >= RSN_SELECTOR_LEN) { *group_cipher = rtw_get_wpa2_cipher_suite(pos); pos += RSN_SELECTOR_LEN; left -= RSN_SELECTOR_LEN; } else if (left > 0) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie length mismatch, %u too much", __func__, left)); return _FAIL; } /* pairwise_cipher */ if (left >= 2) { count = get_unaligned_le16(pos); pos += 2; left -= 2; if (count == 0 || left < count * RSN_SELECTOR_LEN) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie count botch (pairwise), " "count %u left %u", __func__, count, left)); return _FAIL; } for (i = 0; i < count; i++) { *pairwise_cipher |= rtw_get_wpa2_cipher_suite(pos); pos += RSN_SELECTOR_LEN; left -= RSN_SELECTOR_LEN; } } else if (left == 1) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_err_, ("%s: ie too short (for key mgmt)", __func__)); return _FAIL; } if (is_8021x) { if (left >= 6) { pos += 2; if (!memcmp(pos, SUITE_1X, 4)) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s (): there has 802.1x auth\n", __func__)); *is_8021x = 1; } } } return ret; } int rtw_get_sec_ie(u8 *in_ie, uint in_len, u8 *rsn_ie, u16 *rsn_len, u8 *wpa_ie, u16 *wpa_len) { u8 authmode, sec_idx, i; u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01}; uint cnt; /* Search required WPA or WPA2 IE and copy to sec_ie[] */ cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_); sec_idx = 0; while (cnt < in_len) { authmode = in_ie[cnt]; if ((authmode == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], &wpa_oui[0], 4))) { 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)); if (wpa_ie) { memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt+1]+2); for (i = 0; i < (in_ie[cnt+1]+2); i += 8) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n", wpa_ie[i], wpa_ie[i+1], wpa_ie[i+2], wpa_ie[i+3], wpa_ie[i+4], wpa_ie[i+5], wpa_ie[i+6], wpa_ie[i+7])); } } *wpa_len = in_ie[cnt+1]+2; cnt += in_ie[cnt+1]+2; /* get next */ } else { if (authmode == _WPA2_IE_ID_) { 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)); if (rsn_ie) { memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt+1]+2); for (i = 0; i < (in_ie[cnt+1]+2); i += 8) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("\n %2x,%2x,%2x,%2x,%2x,%2x,%2x,%2x\n", rsn_ie[i], rsn_ie[i+1], rsn_ie[i+2], rsn_ie[i+3], rsn_ie[i+4], rsn_ie[i+5], rsn_ie[i+6], rsn_ie[i+7])); } } *rsn_len = in_ie[cnt+1]+2; cnt += in_ie[cnt+1]+2; /* get next */ } else { cnt += in_ie[cnt+1]+2; /* get next */ } } } return *rsn_len + *wpa_len; } u8 rtw_is_wps_ie(u8 *ie_ptr, uint *wps_ielen) { u8 match = false; u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; if (ie_ptr == NULL) return match; eid = ie_ptr[0]; if ((eid == _WPA_IE_ID_) && (!memcmp(&ie_ptr[2], wps_oui, 4))) { *wps_ielen = ie_ptr[1]+2; match = true; } return match; } /** * rtw_get_wps_ie - Search WPS IE from a series of IEs * @in_ie: Address of IEs to search * @in_len: Length limit from in_ie * @wps_ie: If not NULL and WPS IE is found, WPS IE will be copied to the buf starting from wps_ie * @wps_ielen: If not NULL and WPS IE is found, will set to the length of the entire WPS IE * * Returns: The address of the WPS IE found, or NULL */ u8 *rtw_get_wps_ie(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen) { uint cnt; u8 *wpsie_ptr = NULL; u8 eid, wps_oui[4] = {0x0, 0x50, 0xf2, 0x04}; if (wps_ielen) *wps_ielen = 0; if (!in_ie || in_len <= 0) return wpsie_ptr; cnt = 0; while (cnt < in_len) { eid = in_ie[cnt]; if ((eid == _WPA_IE_ID_) && (!memcmp(&in_ie[cnt+2], wps_oui, 4))) { wpsie_ptr = &in_ie[cnt]; if (wps_ie) memcpy(wps_ie, &in_ie[cnt], in_ie[cnt+1]+2); if (wps_ielen) *wps_ielen = in_ie[cnt+1]+2; cnt += in_ie[cnt+1]+2; break; } else { cnt += in_ie[cnt+1]+2; /* goto next */ } } return wpsie_ptr; } /** * rtw_get_wps_attr - Search a specific WPS attribute from a given WPS IE * @wps_ie: Address of WPS IE to search * @wps_ielen: Length limit from wps_ie * @target_attr_id: The attribute ID of WPS attribute to search * @buf_attr: If not NULL and the WPS attribute is found, WPS attribute will be copied to the buf starting from buf_attr * @len_attr: If not NULL and the WPS attribute is found, will set to the length of the entire WPS attribute * * Returns: the address of the specific WPS attribute found, or NULL */ u8 *rtw_get_wps_attr(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_attr, u32 *len_attr) { u8 *attr_ptr = NULL; u8 *target_attr_ptr = NULL; u8 wps_oui[4] = {0x00, 0x50, 0xF2, 0x04}; if (len_attr) *len_attr = 0; if ((wps_ie[0] != _VENDOR_SPECIFIC_IE_) || (memcmp(wps_ie + 2, wps_oui , 4))) return attr_ptr; /* 6 = 1(Element ID) + 1(Length) + 4(WPS OUI) */ attr_ptr = wps_ie + 6; /* goto first attr */ while (attr_ptr - wps_ie < wps_ielen) { /* 4 = 2(Attribute ID) + 2(Length) */ u16 attr_id = RTW_GET_BE16(attr_ptr); u16 attr_data_len = RTW_GET_BE16(attr_ptr + 2); u16 attr_len = attr_data_len + 4; if (attr_id == target_attr_id) { target_attr_ptr = attr_ptr; if (buf_attr) memcpy(buf_attr, attr_ptr, attr_len); if (len_attr) *len_attr = attr_len; break; } else { attr_ptr += attr_len; /* goto next */ } } return target_attr_ptr; } /** * rtw_get_wps_attr_content - Search a specific WPS attribute content from a given WPS IE * @wps_ie: Address of WPS IE to search * @wps_ielen: Length limit from wps_ie * @target_attr_id: The attribute ID of WPS attribute to search * @buf_content: If not NULL and the WPS attribute is found, WPS attribute content will be copied to the buf starting from buf_content * @len_content: If not NULL and the WPS attribute is found, will set to the length of the WPS attribute content * * Returns: the address of the specific WPS attribute content found, or NULL */ u8 *rtw_get_wps_attr_content(u8 *wps_ie, uint wps_ielen, u16 target_attr_id , u8 *buf_content, uint *len_content) { u8 *attr_ptr; u32 attr_len; if (len_content) *len_content = 0; attr_ptr = rtw_get_wps_attr(wps_ie, wps_ielen, target_attr_id, NULL, &attr_len); if (attr_ptr && attr_len) { if (buf_content) memcpy(buf_content, attr_ptr+4, attr_len-4); if (len_content) *len_content = attr_len-4; return attr_ptr+4; } return NULL; } static int rtw_ieee802_11_parse_vendor_specific(u8 *pos, uint elen, struct rtw_ieee802_11_elems *elems, int show_errors) { unsigned int oui; /* first 3 bytes in vendor specific information element are the IEEE * OUI of the vendor. The following byte is used a vendor specific * sub-type. */ if (elen < 4) { if (show_errors) { DBG_88E("short vendor specific information element ignored (len=%lu)\n", (unsigned long) elen); } return -1; } oui = RTW_GET_BE24(pos); switch (oui) { case OUI_MICROSOFT: /* Microsoft/Wi-Fi information elements are further typed and * subtyped */ switch (pos[3]) { case 1: /* Microsoft OUI (00:50:F2) with OUI Type 1: * real WPA information element */ elems->wpa_ie = pos; elems->wpa_ie_len = elen; break; case WME_OUI_TYPE: /* this is a Wi-Fi WME info. element */ if (elen < 5) { DBG_88E("short WME information element ignored (len=%lu)\n", (unsigned long) elen); return -1; } switch (pos[4]) { case WME_OUI_SUBTYPE_INFORMATION_ELEMENT: case WME_OUI_SUBTYPE_PARAMETER_ELEMENT: elems->wme = pos; elems->wme_len = elen; break; case WME_OUI_SUBTYPE_TSPEC_ELEMENT: elems->wme_tspec = pos; elems->wme_tspec_len = elen; break; default: DBG_88E("unknown WME information element ignored (subtype=%d len=%lu)\n", pos[4], (unsigned long) elen); return -1; } break; case 4: /* Wi-Fi Protected Setup (WPS) IE */ elems->wps_ie = pos; elems->wps_ie_len = elen; break; default: DBG_88E("Unknown Microsoft information element ignored (type=%d len=%lu)\n", pos[3], (unsigned long) elen); return -1; } break; case OUI_BROADCOM: switch (pos[3]) { case VENDOR_HT_CAPAB_OUI_TYPE: elems->vendor_ht_cap = pos; elems->vendor_ht_cap_len = elen; break; default: DBG_88E("Unknown Broadcom information element ignored (type=%d len=%lu)\n", pos[3], (unsigned long) elen); return -1; } break; default: DBG_88E("unknown vendor specific information element ignored (vendor OUI %02x:%02x:%02x len=%lu)\n", pos[0], pos[1], pos[2], (unsigned long) elen); return -1; } return 0; } /** * ieee802_11_parse_elems - Parse information elements in management frames * @start: Pointer to the start of IEs * @len: Length of IE buffer in octets * @elems: Data structure for parsed elements * @show_errors: Whether to show parsing errors in debug log * Returns: Parsing result */ enum parse_res rtw_ieee802_11_parse_elems(u8 *start, uint len, struct rtw_ieee802_11_elems *elems, int show_errors) { uint left = len; u8 *pos = start; int unknown = 0; memset(elems, 0, sizeof(*elems)); while (left >= 2) { u8 id, elen; id = *pos++; elen = *pos++; left -= 2; if (elen > left) { if (show_errors) { DBG_88E("IEEE 802.11 element parse failed (id=%d elen=%d left=%lu)\n", id, elen, (unsigned long) left); } return ParseFailed; } switch (id) { case WLAN_EID_SSID: elems->ssid = pos; elems->ssid_len = elen; break; case WLAN_EID_SUPP_RATES: elems->supp_rates = pos; elems->supp_rates_len = elen; break; case WLAN_EID_FH_PARAMS: elems->fh_params = pos; elems->fh_params_len = elen; break; case WLAN_EID_DS_PARAMS: elems->ds_params = pos; elems->ds_params_len = elen; break; case WLAN_EID_CF_PARAMS: elems->cf_params = pos; elems->cf_params_len = elen; break; case WLAN_EID_TIM: elems->tim = pos; elems->tim_len = elen; break; case WLAN_EID_IBSS_PARAMS: elems->ibss_params = pos; elems->ibss_params_len = elen; break; case WLAN_EID_CHALLENGE: elems->challenge = pos; elems->challenge_len = elen; break; case WLAN_EID_ERP_INFO: elems->erp_info = pos; elems->erp_info_len = elen; break; case WLAN_EID_EXT_SUPP_RATES: elems->ext_supp_rates = pos; elems->ext_supp_rates_len = elen; break; case WLAN_EID_VENDOR_SPECIFIC: if (rtw_ieee802_11_parse_vendor_specific(pos, elen, elems, show_errors)) unknown++; break; case WLAN_EID_RSN: elems->rsn_ie = pos; elems->rsn_ie_len = elen; break; case WLAN_EID_PWR_CAPABILITY: elems->power_cap = pos; elems->power_cap_len = elen; break; case WLAN_EID_SUPPORTED_CHANNELS: elems->supp_channels = pos; elems->supp_channels_len = elen; break; case WLAN_EID_MOBILITY_DOMAIN: elems->mdie = pos; elems->mdie_len = elen; break; case WLAN_EID_FAST_BSS_TRANSITION: elems->ftie = pos; elems->ftie_len = elen; break; case WLAN_EID_TIMEOUT_INTERVAL: elems->timeout_int = pos; elems->timeout_int_len = elen; break; case WLAN_EID_HT_CAP: elems->ht_capabilities = pos; elems->ht_capabilities_len = elen; break; case WLAN_EID_HT_OPERATION: elems->ht_operation = pos; elems->ht_operation_len = elen; break; default: unknown++; if (!show_errors) break; DBG_88E("IEEE 802.11 element parse ignored unknown element (id=%d elen=%d)\n", id, elen); break; } left -= elen; pos += elen; } if (left) return ParseFailed; return unknown ? ParseUnknown : ParseOK; } u8 key_char2num(u8 ch) { if ((ch >= '0') && (ch <= '9')) return ch - '0'; else if ((ch >= 'a') && (ch <= 'f')) return ch - 'a' + 10; else if ((ch >= 'A') && (ch <= 'F')) return ch - 'A' + 10; else return 0xff; } u8 str_2char2num(u8 hch, u8 lch) { return (key_char2num(hch) * 10) + key_char2num(lch); } u8 key_2char2num(u8 hch, u8 lch) { return (key_char2num(hch) << 4) | key_char2num(lch); } void rtw_macaddr_cfg(u8 *mac_addr) { u8 mac[ETH_ALEN]; if (mac_addr == NULL) return; if (rtw_initmac) { /* Users specify the mac address */ int jj, kk; for (jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3) mac[jj] = key_2char2num(rtw_initmac[kk], rtw_initmac[kk + 1]); memcpy(mac_addr, mac, ETH_ALEN); } else { /* Use the mac address stored in the Efuse */ memcpy(mac, mac_addr, ETH_ALEN); } if (((mac[0] == 0xff) && (mac[1] == 0xff) && (mac[2] == 0xff) && (mac[3] == 0xff) && (mac[4] == 0xff) && (mac[5] == 0xff)) || ((mac[0] == 0x0) && (mac[1] == 0x0) && (mac[2] == 0x0) && (mac[3] == 0x0) && (mac[4] == 0x0) && (mac[5] == 0x0))) { mac[0] = 0x00; mac[1] = 0xe0; mac[2] = 0x4c; mac[3] = 0x87; mac[4] = 0x00; mac[5] = 0x00; /* use default mac addresss */ memcpy(mac_addr, mac, ETH_ALEN); DBG_88E("MAC Address from efuse error, assign default one !!!\n"); } DBG_88E("rtw_macaddr_cfg MAC Address = %pM\n", (mac_addr)); } void dump_ies(u8 *buf, u32 buf_len) { u8 *pos = (u8 *)buf; u8 id, len; while (pos-buf <= buf_len) { id = *pos; len = *(pos+1); DBG_88E("%s ID:%u, LEN:%u\n", __func__, id, len); #ifdef CONFIG_88EU_P2P dump_p2p_ie(pos, len); #endif dump_wps_ie(pos, len); pos += (2 + len); } } void dump_wps_ie(u8 *ie, u32 ie_len) { u8 *pos = (u8 *)ie; u16 id; u16 len; u8 *wps_ie; uint wps_ielen; wps_ie = rtw_get_wps_ie(ie, ie_len, NULL, &wps_ielen); if (wps_ie != ie || wps_ielen == 0) return; pos += 6; while (pos-ie < ie_len) { id = RTW_GET_BE16(pos); len = RTW_GET_BE16(pos + 2); DBG_88E("%s ID:0x%04x, LEN:%u\n", __func__, id, len); pos += (4+len); } } #ifdef CONFIG_88EU_P2P void dump_p2p_ie(u8 *ie, u32 ie_len) { u8 *pos = (u8 *)ie; u8 id; u16 len; u8 *p2p_ie; uint p2p_ielen; p2p_ie = rtw_get_p2p_ie(ie, ie_len, NULL, &p2p_ielen); if (p2p_ie != ie || p2p_ielen == 0) return; pos += 6; while (pos-ie < ie_len) { id = *pos; len = get_unaligned_le16(pos+1); DBG_88E("%s ID:%u, LEN:%u\n", __func__, id, len); pos += (3+len); } } /** * rtw_get_p2p_ie - Search P2P IE from a series of IEs * @in_ie: Address of IEs to search * @in_len: Length limit from in_ie * @p2p_ie: If not NULL and P2P IE is found, P2P IE will be copied to the buf starting from p2p_ie * @p2p_ielen: If not NULL and P2P IE is found, will set to the length of the entire P2P IE * * Returns: The address of the P2P IE found, or NULL */ u8 *rtw_get_p2p_ie(u8 *in_ie, int in_len, u8 *p2p_ie, uint *p2p_ielen) { uint cnt = 0; u8 *p2p_ie_ptr; u8 eid, p2p_oui[4] = {0x50, 0x6F, 0x9A, 0x09}; if (p2p_ielen != NULL) *p2p_ielen = 0; while (cnt < in_len) { eid = in_ie[cnt]; if ((in_len < 0) || (cnt > MAX_IE_SZ)) { dump_stack(); return NULL; } if ((eid == _VENDOR_SPECIFIC_IE_) && !memcmp(&in_ie[cnt+2], p2p_oui, 4)) { p2p_ie_ptr = in_ie + cnt; if (p2p_ie != NULL) memcpy(p2p_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); if (p2p_ielen != NULL) *p2p_ielen = in_ie[cnt + 1] + 2; return p2p_ie_ptr; } else { cnt += in_ie[cnt + 1] + 2; /* goto next */ } } return NULL; } /** * rtw_get_p2p_attr - Search a specific P2P attribute from a given P2P IE * @p2p_ie: Address of P2P IE to search * @p2p_ielen: Length limit from p2p_ie * @target_attr_id: The attribute ID of P2P attribute to search * @buf_attr: If not NULL and the P2P attribute is found, P2P attribute will be copied to the buf starting from buf_attr * @len_attr: If not NULL and the P2P attribute is found, will set to the length of the entire P2P attribute * * Returns: the address of the specific WPS attribute found, or NULL */ u8 *rtw_get_p2p_attr(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id , u8 *buf_attr, u32 *len_attr) { u8 *attr_ptr = NULL; u8 *target_attr_ptr = NULL; u8 p2p_oui[4] = {0x50, 0x6F, 0x9A, 0x09}; if (len_attr) *len_attr = 0; if (!p2p_ie || (p2p_ie[0] != _VENDOR_SPECIFIC_IE_) || memcmp(p2p_ie + 2, p2p_oui , 4)) return attr_ptr; /* 6 = 1(Element ID) + 1(Length) + 3 (OUI) + 1(OUI Type) */ attr_ptr = p2p_ie + 6; /* goto first attr */ while (attr_ptr - p2p_ie < p2p_ielen) { /* 3 = 1(Attribute ID) + 2(Length) */ u8 attr_id = *attr_ptr; u16 attr_data_len = get_unaligned_le16(attr_ptr + 1); u16 attr_len = attr_data_len + 3; if (attr_id == target_attr_id) { target_attr_ptr = attr_ptr; if (buf_attr) memcpy(buf_attr, attr_ptr, attr_len); if (len_attr) *len_attr = attr_len; break; } else { attr_ptr += attr_len; /* goto next */ } } return target_attr_ptr; } /** * rtw_get_p2p_attr_content - Search a specific P2P attribute content from a given P2P IE * @p2p_ie: Address of P2P IE to search * @p2p_ielen: Length limit from p2p_ie * @target_attr_id: The attribute ID of P2P attribute to search * @buf_content: If not NULL and the P2P attribute is found, P2P attribute content will be copied to the buf starting from buf_content * @len_content: If not NULL and the P2P attribute is found, will set to the length of the P2P attribute content * * Returns: the address of the specific P2P attribute content found, or NULL */ u8 *rtw_get_p2p_attr_content(u8 *p2p_ie, uint p2p_ielen, u8 target_attr_id , u8 *buf_content, uint *len_content) { u8 *attr_ptr; u32 attr_len; if (len_content) *len_content = 0; attr_ptr = rtw_get_p2p_attr(p2p_ie, p2p_ielen, target_attr_id, NULL, &attr_len); if (attr_ptr && attr_len) { if (buf_content) memcpy(buf_content, attr_ptr+3, attr_len-3); if (len_content) *len_content = attr_len-3; return attr_ptr+3; } return NULL; } u32 rtw_set_p2p_attr_content(u8 *pbuf, u8 attr_id, u16 attr_len, u8 *pdata_attr) { u32 a_len; *pbuf = attr_id; /* u16*)(pbuf + 1) = cpu_to_le16(attr_len); */ RTW_PUT_LE16(pbuf + 1, attr_len); if (pdata_attr) memcpy(pbuf + 3, pdata_attr, attr_len); a_len = attr_len + 3; return a_len; } static uint rtw_p2p_attr_remove(u8 *ie, uint ielen_ori, u8 attr_id) { u8 *target_attr; u32 target_attr_len; uint ielen = ielen_ori; while (1) { target_attr = rtw_get_p2p_attr(ie, ielen, attr_id, NULL, &target_attr_len); if (target_attr && target_attr_len) { u8 *next_attr = target_attr+target_attr_len; uint remain_len = ielen-(next_attr-ie); memset(target_attr, 0, target_attr_len); memcpy(target_attr, next_attr, remain_len); memset(target_attr+remain_len, 0, target_attr_len); *(ie+1) -= target_attr_len; ielen -= target_attr_len; } else { break; } } return ielen; } void rtw_wlan_bssid_ex_remove_p2p_attr(struct wlan_bssid_ex *bss_ex, u8 attr_id) { u8 *p2p_ie; uint p2p_ielen, p2p_ielen_ori; p2p_ie = rtw_get_p2p_ie(bss_ex->IEs+_FIXED_IE_LENGTH_, bss_ex->IELength-_FIXED_IE_LENGTH_, NULL, &p2p_ielen_ori); if (p2p_ie) { p2p_ielen = rtw_p2p_attr_remove(p2p_ie, p2p_ielen_ori, attr_id); if (p2p_ielen != p2p_ielen_ori) { u8 *next_ie_ori = p2p_ie+p2p_ielen_ori; u8 *next_ie = p2p_ie+p2p_ielen; uint remain_len = bss_ex->IELength-(next_ie_ori-bss_ex->IEs); memcpy(next_ie, next_ie_ori, remain_len); memset(next_ie+remain_len, 0, p2p_ielen_ori-p2p_ielen); bss_ex->IELength -= p2p_ielen_ori-p2p_ielen; } } } #endif /* CONFIG_88EU_P2P */ /* Baron adds to avoid FreeBSD warning */ int ieee80211_is_empty_essid(const char *essid, int essid_len) { /* Single white space is for Linksys APs */ if (essid_len == 1 && essid[0] == ' ') return 1; /* Otherwise, if the entire essid is 0, we assume it is hidden */ while (essid_len) { essid_len--; if (essid[essid_len] != '\0') return 0; } return 1; } int ieee80211_get_hdrlen(u16 fc) { int hdrlen = 24; switch (WLAN_FC_GET_TYPE(fc)) { case RTW_IEEE80211_FTYPE_DATA: if (fc & RTW_IEEE80211_STYPE_QOS_DATA) hdrlen += 2; if ((fc & RTW_IEEE80211_FCTL_FROMDS) && (fc & RTW_IEEE80211_FCTL_TODS)) hdrlen += 6; /* Addr4 */ break; case RTW_IEEE80211_FTYPE_CTL: switch (WLAN_FC_GET_STYPE(fc)) { case RTW_IEEE80211_STYPE_CTS: case RTW_IEEE80211_STYPE_ACK: hdrlen = 10; break; default: hdrlen = 16; break; } break; } return hdrlen; } static int rtw_get_cipher_info(struct wlan_network *pnetwork) { u32 wpa_ielen; unsigned char *pbuf; int group_cipher = 0, pairwise_cipher = 0, is8021x = 0; int ret = _FAIL; pbuf = rtw_get_wpa_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12); if (pbuf && (wpa_ielen > 0)) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_cipher_info: wpa_ielen: %d", wpa_ielen)); if (_SUCCESS == rtw_parse_wpa_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) { pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher; pnetwork->BcnInfo.group_cipher = group_cipher; pnetwork->BcnInfo.is_8021x = is8021x; RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.is_8021x)); ret = _SUCCESS; } } else { pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength-12); if (pbuf && (wpa_ielen > 0)) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE\n")); if (_SUCCESS == rtw_parse_wpa2_ie(pbuf, wpa_ielen+2, &group_cipher, &pairwise_cipher, &is8021x)) { RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("get RSN IE OK!!!\n")); pnetwork->BcnInfo.pairwise_cipher = pairwise_cipher; pnetwork->BcnInfo.group_cipher = group_cipher; pnetwork->BcnInfo.is_8021x = is8021x; RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("%s: pnetwork->pairwise_cipher: %d," "pnetwork->group_cipher is %d, is_8021x is %d", __func__, pnetwork->BcnInfo.pairwise_cipher, pnetwork->BcnInfo.group_cipher, pnetwork->BcnInfo.is_8021x)); ret = _SUCCESS; } } } return ret; } void rtw_get_bcn_info(struct wlan_network *pnetwork) { unsigned short cap = 0; u8 bencrypt = 0; __le16 le_tmp; u16 wpa_len = 0, rsn_len = 0; struct HT_info_element *pht_info = NULL; struct rtw_ieee80211_ht_cap *pht_cap = NULL; unsigned int len; unsigned char *p; memcpy(&le_tmp, rtw_get_capability_from_ie(pnetwork->network.IEs), 2); cap = le16_to_cpu(le_tmp); if (cap & WLAN_CAPABILITY_PRIVACY) { bencrypt = 1; pnetwork->network.Privacy = 1; } else { pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS; } rtw_get_sec_ie(pnetwork->network.IEs , pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_len); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid)); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len)); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: ssid =%s\n", pnetwork->network.Ssid.Ssid)); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: wpa_len =%d rsn_len =%d\n", wpa_len, rsn_len)); if (rsn_len > 0) { pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2; } else if (wpa_len > 0) { pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA; } else { if (bencrypt) pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WEP; } RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n", pnetwork->BcnInfo.encryp_protocol)); RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, ("rtw_get_bcn_info: pnetwork->encryp_protocol is %x\n", pnetwork->BcnInfo.encryp_protocol)); rtw_get_cipher_info(pnetwork); /* get bwmode and ch_offset */ /* parsing HT_CAP_IE */ p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_CAPABILITY_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_); if (p && len > 0) { pht_cap = (struct rtw_ieee80211_ht_cap *)(p + 2); pnetwork->BcnInfo.ht_cap_info = le16_to_cpu(pht_cap->cap_info); } else { pnetwork->BcnInfo.ht_cap_info = 0; } /* parsing HT_INFO_IE */ p = rtw_get_ie(pnetwork->network.IEs + _FIXED_IE_LENGTH_, _HT_ADD_INFO_IE_, &len, pnetwork->network.IELength - _FIXED_IE_LENGTH_); if (p && len > 0) { pht_info = (struct HT_info_element *)(p + 2); pnetwork->BcnInfo.ht_info_infos_0 = pht_info->infos[0]; } else { pnetwork->BcnInfo.ht_info_infos_0 = 0; } } /* show MCS rate, unit: 100Kbps */ u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI_20, u8 short_GI_40, unsigned char *MCS_rate) { u16 max_rate = 0; if (rf_type == RF_1T1R) { if (MCS_rate[0] & BIT(7)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1500 : 1350) : ((short_GI_20) ? 722 : 650); else if (MCS_rate[0] & BIT(6)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1350 : 1215) : ((short_GI_20) ? 650 : 585); else if (MCS_rate[0] & BIT(5)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1200 : 1080) : ((short_GI_20) ? 578 : 520); else if (MCS_rate[0] & BIT(4)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 900 : 810) : ((short_GI_20) ? 433 : 390); else if (MCS_rate[0] & BIT(3)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 600 : 540) : ((short_GI_20) ? 289 : 260); else if (MCS_rate[0] & BIT(2)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 450 : 405) : ((short_GI_20) ? 217 : 195); else if (MCS_rate[0] & BIT(1)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 300 : 270) : ((short_GI_20) ? 144 : 130); else if (MCS_rate[0] & BIT(0)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 150 : 135) : ((short_GI_20) ? 72 : 65); } else { if (MCS_rate[1]) { if (MCS_rate[1] & BIT(7)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 3000 : 2700) : ((short_GI_20) ? 1444 : 1300); else if (MCS_rate[1] & BIT(6)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 2700 : 2430) : ((short_GI_20) ? 1300 : 1170); else if (MCS_rate[1] & BIT(5)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 2400 : 2160) : ((short_GI_20) ? 1156 : 1040); else if (MCS_rate[1] & BIT(4)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1800 : 1620) : ((short_GI_20) ? 867 : 780); else if (MCS_rate[1] & BIT(3)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1200 : 1080) : ((short_GI_20) ? 578 : 520); else if (MCS_rate[1] & BIT(2)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 900 : 810) : ((short_GI_20) ? 433 : 390); else if (MCS_rate[1] & BIT(1)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 600 : 540) : ((short_GI_20) ? 289 : 260); else if (MCS_rate[1] & BIT(0)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 300 : 270) : ((short_GI_20) ? 144 : 130); } else { if (MCS_rate[0] & BIT(7)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1500 : 1350) : ((short_GI_20) ? 722 : 650); else if (MCS_rate[0] & BIT(6)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1350 : 1215) : ((short_GI_20) ? 650 : 585); else if (MCS_rate[0] & BIT(5)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 1200 : 1080) : ((short_GI_20) ? 578 : 520); else if (MCS_rate[0] & BIT(4)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 900 : 810) : ((short_GI_20) ? 433 : 390); else if (MCS_rate[0] & BIT(3)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 600 : 540) : ((short_GI_20) ? 289 : 260); else if (MCS_rate[0] & BIT(2)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 450 : 405) : ((short_GI_20) ? 217 : 195); else if (MCS_rate[0] & BIT(1)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 300 : 270) : ((short_GI_20) ? 144 : 130); else if (MCS_rate[0] & BIT(0)) max_rate = (bw_40MHz) ? ((short_GI_40) ? 150 : 135) : ((short_GI_20) ? 72 : 65); } } return max_rate; } int rtw_action_frame_parse(const u8 *frame, u32 frame_len, u8 *category, u8 *action) { const u8 *frame_body = frame + sizeof(struct rtw_ieee80211_hdr_3addr); u16 fc; u8 c, a = 0; fc = le16_to_cpu(((struct rtw_ieee80211_hdr_3addr *)frame)->frame_ctl); if ((fc & (RTW_IEEE80211_FCTL_FTYPE|RTW_IEEE80211_FCTL_STYPE)) != (RTW_IEEE80211_FTYPE_MGMT|RTW_IEEE80211_STYPE_ACTION)) return false; c = frame_body[0]; switch (c) { case RTW_WLAN_CATEGORY_P2P: /* vendor-specific */ break; default: a = frame_body[1]; } if (category) *category = c; if (action) *action = a; return true; } static const char *_action_public_str[] = { "ACT_PUB_BSSCOEXIST", "ACT_PUB_DSE_ENABLE", "ACT_PUB_DSE_DEENABLE", "ACT_PUB_DSE_REG_LOCATION", "ACT_PUB_EXT_CHL_SWITCH", "ACT_PUB_DSE_MSR_REQ", "ACT_PUB_DSE_MSR_RPRT", "ACT_PUB_MP", "ACT_PUB_DSE_PWR_CONSTRAINT", "ACT_PUB_VENDOR", "ACT_PUB_GAS_INITIAL_REQ", "ACT_PUB_GAS_INITIAL_RSP", "ACT_PUB_GAS_COMEBACK_REQ", "ACT_PUB_GAS_COMEBACK_RSP", "ACT_PUB_TDLS_DISCOVERY_RSP", "ACT_PUB_LOCATION_TRACK", "ACT_PUB_RSVD", }; const char *action_public_str(u8 action) { action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action; return _action_public_str[action]; }