diff options
Diffstat (limited to 'kernel/drivers/staging/rtl8723au/core/rtw_ieee80211.c')
-rw-r--r-- | kernel/drivers/staging/rtl8723au/core/rtw_ieee80211.c | 854 |
1 files changed, 854 insertions, 0 deletions
diff --git a/kernel/drivers/staging/rtl8723au/core/rtw_ieee80211.c b/kernel/drivers/staging/rtl8723au/core/rtw_ieee80211.c new file mode 100644 index 000000000..cdd7bc402 --- /dev/null +++ b/kernel/drivers/staging/rtl8723au/core/rtw_ieee80211.c @@ -0,0 +1,854 @@ +/****************************************************************************** + * + * 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. + * + ******************************************************************************/ +#define _IEEE80211_C + +#include <drv_types.h> +#include <linux/ieee80211.h> +#include <ieee80211.h> +#include <wifi.h> +#include <osdep_service.h> +#include <wlan_bssdef.h> + +u8 RTW_WPA_OUI23A_TYPE[] = { 0x00, 0x50, 0xf2, 1 }; +u16 RTW_WPA_VERSION23A = 1; +u8 WPA_AUTH_KEY_MGMT_NONE23A[] = { 0x00, 0x50, 0xf2, 0 }; +u8 WPA_AUTH_KEY_MGMT_UNSPEC_802_1X23A[] = { 0x00, 0x50, 0xf2, 1 }; +u8 WPA_AUTH_KEY_MGMT_PSK_OVER_802_1X23A[] = { 0x00, 0x50, 0xf2, 2 }; +u8 WPA_CIPHER_SUITE_NONE23A[] = { 0x00, 0x50, 0xf2, 0 }; +u8 WPA_CIPHER_SUITE_WEP4023A[] = { 0x00, 0x50, 0xf2, 1 }; +u8 WPA_CIPHER_SUITE_TKIP23A[] = { 0x00, 0x50, 0xf2, 2 }; +u8 WPA_CIPHER_SUITE_WRAP23A[] = { 0x00, 0x50, 0xf2, 3 }; +u8 WPA_CIPHER_SUITE_CCMP23A[] = { 0x00, 0x50, 0xf2, 4 }; +u8 WPA_CIPHER_SUITE_WEP10423A[] = { 0x00, 0x50, 0xf2, 5 }; + +u8 RSN_AUTH_KEY_MGMT_UNSPEC_802_1X23A[] = { 0x00, 0x0f, 0xac, 1 }; +u8 RSN_AUTH_KEY_MGMT_PSK_OVER_802_1X23A[] = { 0x00, 0x0f, 0xac, 2 }; +u8 RSN_CIPHER_SUITE_NONE23A[] = { 0x00, 0x0f, 0xac, 0 }; +u8 RSN_CIPHER_SUITE_WEP4023A[] = { 0x00, 0x0f, 0xac, 1 }; +u8 RSN_CIPHER_SUITE_TKIP23A[] = { 0x00, 0x0f, 0xac, 2 }; +u8 RSN_CIPHER_SUITE_WRAP23A[] = { 0x00, 0x0f, 0xac, 3 }; +u8 RSN_CIPHER_SUITE_CCMP23A[] = { 0x00, 0x0f, 0xac, 4 }; +u8 RSN_CIPHER_SUITE_WEP10423A[] = { 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_value23a(u8 val) +{ + unsigned char dot11_rate_table[]= + {2, 4, 11, 22, 12, 18, 24, 36, 48, 72, 96, 108, 0}; + + int i = 0; + + while (dot11_rate_table[i] != 0) { + if (dot11_rate_table[i] == val) + return BIT(i); + i++; + } + return 0; +} + +static bool rtw_is_cckrates_included(u8 *rate) +{ + u32 i = 0; + + while (rate[i]) { + if ((rate[i] & 0x7f) == 2 || (rate[i] & 0x7f) == 4 || + (rate[i] & 0x7f) == 11 || (rate[i] & 0x7f) == 22) + return true; + i++; + } + + return false; +} + +static bool rtw_is_cckratesonly_included(u8 *rate) +{ + u32 i = 0; + + while (rate[i]) { + 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_type23a(unsigned char *rate, int ratelen, int channel) +{ + if (channel > 14) { + if (rtw_is_cckrates_included(rate)) + return WIRELESS_INVALID; + else + return WIRELESS_11A; + } else { /* could be pure B, pure G, or B/G */ + if (rtw_is_cckratesonly_included(rate)) + return WIRELESS_11B; + else if (rtw_is_cckrates_included(rate)) + return WIRELESS_11BG; + else + return WIRELESS_11G; + } +} + +/* rtw_set_ie23a will update frame length */ +u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, const u8 *source, uint *frlen) +{ + + *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_ie23a_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_ie23a(buf, WLAN_EID_CHANNEL_SWITCH, 3, ie_data, buf_len); +} + +inline u8 hal_ch_offset_to_secondary_ch_offset23a(u8 ch_offset) +{ + if (ch_offset == HAL_PRIME_CHNL_OFFSET_LOWER) + return IEEE80211_HT_PARAM_CHA_SEC_BELOW; + else if (ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) + return IEEE80211_HT_PARAM_CHA_SEC_ABOVE; + + return IEEE80211_HT_PARAM_CHA_SEC_NONE; +} + +inline u8 *rtw_set_ie23a_secondary_ch_offset(u8 *buf, u32 *buf_len, + u8 secondary_ch_offset) +{ + return rtw_set_ie23a(buf, WLAN_EID_SECONDARY_CHANNEL_OFFSET, + 1, &secondary_ch_offset, buf_len); +} + +/*---------------------------------------------------------------------------- +index: the information element id index, limit is the limit for search +-----------------------------------------------------------------------------*/ +u8 *rtw_get_ie23a(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_ie23a_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_ie23a_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_ie23a - 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 search + * @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_ie23a(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_ie23a_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_rate23a(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_len23a(u8 *rateset) +{ + uint i = 0; + + while(1) { + if (rateset[i] == 0) + break; + + if (i > 12) + break; + + i++; + } + + return i; +} + +int rtw_generate_ie23a(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; + u16 cap; + + pdev_network->tsf = 0; + + cap = WLAN_CAPABILITY_IBSS; + + if (pregistrypriv->preamble == PREAMBLE_SHORT) + cap |= WLAN_CAPABILITY_SHORT_PREAMBLE; + + if (pdev_network->Privacy) + cap |= WLAN_CAPABILITY_PRIVACY; + + pdev_network->capability = cap; + + /* SSID */ + ie = rtw_set_ie23a(ie, WLAN_EID_SSID, pdev_network->Ssid.ssid_len, + pdev_network->Ssid.ssid, &sz); + + /* supported rates */ + if (pregistrypriv->wireless_mode == WIRELESS_11ABGN) { + if (pdev_network->DSConfig > 14) + wireless_mode = WIRELESS_11A_5N; + else + wireless_mode = WIRELESS_11BG_24N; + } else { + wireless_mode = pregistrypriv->wireless_mode; + } + + rtw_set_supported_rate23a(pdev_network->SupportedRates, wireless_mode) ; + + rateLen = rtw_get_rateset_len23a(pdev_network->SupportedRates); + + if (rateLen > 8) { + ie = rtw_set_ie23a(ie, WLAN_EID_SUPP_RATES, 8, + pdev_network->SupportedRates, &sz); + /* ie = rtw_set_ie23a(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), (pdev_network->SupportedRates + 8), &sz); */ + } else { + ie = rtw_set_ie23a(ie, WLAN_EID_SUPP_RATES, rateLen, + pdev_network->SupportedRates, &sz); + } + + /* DS parameter set */ + ie = rtw_set_ie23a(ie, WLAN_EID_DS_PARAMS, 1, + (u8 *)&pdev_network->DSConfig, &sz); + + /* IBSS Parameter Set */ + + ie = rtw_set_ie23a(ie, WLAN_EID_IBSS_PARAMS, 2, + (u8 *)&pdev_network->ATIMWindow, &sz); + + if (rateLen > 8) { + ie = rtw_set_ie23a(ie, WLAN_EID_EXT_SUPP_RATES, (rateLen - 8), + (pdev_network->SupportedRates + 8), &sz); + } + + + + /* return _SUCCESS; */ + + return sz; +} + +static int rtw_get_wpa_cipher_suite(const u8 *s) +{ + if (!memcmp(s, WPA_CIPHER_SUITE_NONE23A, WPA_SELECTOR_LEN)) + return WPA_CIPHER_NONE; + if (!memcmp(s, WPA_CIPHER_SUITE_WEP4023A, WPA_SELECTOR_LEN)) + return WPA_CIPHER_WEP40; + if (!memcmp(s, WPA_CIPHER_SUITE_TKIP23A, WPA_SELECTOR_LEN)) + return WPA_CIPHER_TKIP; + if (!memcmp(s, WPA_CIPHER_SUITE_CCMP23A, WPA_SELECTOR_LEN)) + return WPA_CIPHER_CCMP; + if (!memcmp(s, WPA_CIPHER_SUITE_WEP10423A, WPA_SELECTOR_LEN)) + return WPA_CIPHER_WEP104; + + return 0; +} + +static int rtw_get_wpa2_cipher_suite(const u8 *s) +{ + if (!memcmp(s, RSN_CIPHER_SUITE_NONE23A, RSN_SELECTOR_LEN)) + return WPA_CIPHER_NONE; + if (!memcmp(s, RSN_CIPHER_SUITE_WEP4023A, RSN_SELECTOR_LEN)) + return WPA_CIPHER_WEP40; + if (!memcmp(s, RSN_CIPHER_SUITE_TKIP23A, RSN_SELECTOR_LEN)) + return WPA_CIPHER_TKIP; + if (!memcmp(s, RSN_CIPHER_SUITE_CCMP23A, RSN_SELECTOR_LEN)) + return WPA_CIPHER_CCMP; + if (!memcmp(s, RSN_CIPHER_SUITE_WEP10423A, RSN_SELECTOR_LEN)) + return WPA_CIPHER_WEP104; + + return 0; +} + +int rtw_parse_wpa_ie23a(const u8* wpa_ie, int wpa_ie_len, int *group_cipher, int *pairwise_cipher, int *is_8021x) +{ + int i, ret = _SUCCESS; + int left, count; + const u8 *pos; + + if (wpa_ie_len <= 0) { + /* No WPA IE - fail silently */ + return _FAIL; + } + + if (wpa_ie[1] != (u8)(wpa_ie_len - 2)) + 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\n", + __func__, left); + + return _FAIL; + } + + /* pairwise_cipher */ + if (left >= 2) { + /* count = le16_to_cpu(*(u16*)pos); */ + 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\n", + __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)\n", __func__); + return _FAIL; + } + + if (is_8021x) { + if (left >= 6) { + pos += 2; + if (!memcmp(pos, RTW_WPA_OUI23A_TYPE, 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_ie23a(const u8 *rsn_ie, int rsn_ie_len, int *group_cipher, + int *pairwise_cipher, int *is_8021x) +{ + int i, ret = _SUCCESS; + int left, count; + const 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 != WLAN_EID_RSN || *(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\n", + __func__, left); + return _FAIL; + } + + /* pairwise_cipher */ + if (left >= 2) { + /* count = le16_to_cpu(*(u16*)pos); */ + 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\n", + __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)\n", __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; +} + +/** + * rtw_get_wps_attr23a - 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 + */ +const u8 *rtw_get_wps_attr23a(const u8 *wps_ie, uint wps_ielen, + u16 target_attr_id, u8 *buf_attr, u32 *len_attr) +{ + const u8 *attr_ptr = NULL; + const u8 *target_attr_ptr = NULL; + u8 wps_oui[4] = {0x00, 0x50, 0xF2, 0x04}; + + if (len_attr) + *len_attr = 0; + + if (wps_ie[0] != WLAN_EID_VENDOR_SPECIFIC || + 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 = get_unaligned_be16(attr_ptr); + u16 attr_data_len = get_unaligned_be16(attr_ptr + 2); + u16 attr_len = attr_data_len + 4; + + /* DBG_8723A("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); */ + 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_content23a - 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 + */ +const u8 *rtw_get_wps_attr_content23a(const u8 *wps_ie, uint wps_ielen, + u16 target_attr_id, u8 *buf_content) +{ + const u8 *attr_ptr; + u32 attr_len; + + attr_ptr = rtw_get_wps_attr23a(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); + + return attr_ptr + 4; + } + + return NULL; +} + +static int rtw_get_cipher_info(struct wlan_network *pnetwork) +{ + const u8 *pbuf; + int group_cipher = 0, pairwise_cipher = 0, is8021x = 0; + int ret = _FAIL; + int r, plen; + char *pie; + + pie = pnetwork->network.IEs; + plen = pnetwork->network.IELength; + + pbuf = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, + WLAN_OUI_TYPE_MICROSOFT_WPA, pie, plen); + + if (pbuf && pbuf[1] > 0) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "rtw_get_cipher_info: wpa_ielen: %d\n", pbuf[1]); + r = rtw_parse_wpa_ie23a(pbuf, pbuf[1] + 2, &group_cipher, + &pairwise_cipher, &is8021x); + if (r == _SUCCESS) { + 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\n", + __func__, pnetwork->BcnInfo.pairwise_cipher, + pnetwork->BcnInfo.is_8021x); + ret = _SUCCESS; + } + } else { + pbuf = cfg80211_find_ie(WLAN_EID_RSN, pie, plen); + + if (pbuf && pbuf[1] > 0) { + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "get RSN IE\n"); + r = rtw_parse_wpa2_ie23a(pbuf, pbuf[1] + 2, + &group_cipher, &pairwise_cipher, + &is8021x); + if (r == _SUCCESS) { + 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\n", + __func__, + pnetwork->BcnInfo.pairwise_cipher, + pnetwork->BcnInfo.group_cipher, + pnetwork->BcnInfo.is_8021x); + ret = _SUCCESS; + } + } + } + + return ret; +} + +void rtw_get_bcn_info23a(struct wlan_network *pnetwork) +{ + u8 bencrypt = 0; + int pie_len; + u8 *pie; + const u8 *p; + + if (pnetwork->network.capability & WLAN_CAPABILITY_PRIVACY) { + bencrypt = 1; + pnetwork->network.Privacy = 1; + } else + pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS; + + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "%s: ssid =%s\n", __func__, pnetwork->network.Ssid.ssid); + + pie = pnetwork->network.IEs; + pie_len = pnetwork->network.IELength; + + p = cfg80211_find_ie(WLAN_EID_RSN, pie, pie_len); + if (p && p[1]) { + pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_WPA2; + } else if (cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, + WLAN_OUI_TYPE_MICROSOFT_WPA, + pie, pie_len)) { + 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_, + "%s: pnetwork->encryp_protocol is %x\n", __func__, + pnetwork->BcnInfo.encryp_protocol); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + "%s: pnetwork->encryp_protocol is %x\n", __func__, + pnetwork->BcnInfo.encryp_protocol); + rtw_get_cipher_info(pnetwork); + + /* get bwmode and ch_offset */ +} + +/* show MCS rate, unit: 100Kbps */ +u16 rtw_mcs_rate23a(u8 rf_type, u8 bw_40MHz, u8 short_GI_20, u8 short_GI_40, + struct ieee80211_mcs_info *mcs) +{ + u16 max_rate = 0; + + if (rf_type == RF_1T1R) { + if (mcs->rx_mask[0] & BIT(7)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1500:1350): + ((short_GI_20)?722:650); + else if (mcs->rx_mask[0] & BIT(6)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1350:1215): + ((short_GI_20)?650:585); + else if (mcs->rx_mask[0] & BIT(5)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080): + ((short_GI_20)?578:520); + else if (mcs->rx_mask[0] & BIT(4)) + max_rate = (bw_40MHz) ? ((short_GI_40)?900:810): + ((short_GI_20)?433:390); + else if (mcs->rx_mask[0] & BIT(3)) + max_rate = (bw_40MHz) ? ((short_GI_40)?600:540): + ((short_GI_20)?289:260); + else if (mcs->rx_mask[0] & BIT(2)) + max_rate = (bw_40MHz) ? ((short_GI_40)?450:405): + ((short_GI_20)?217:195); + else if (mcs->rx_mask[0] & BIT(1)) + max_rate = (bw_40MHz) ? ((short_GI_40)?300:270): + ((short_GI_20)?144:130); + else if (mcs->rx_mask[0] & BIT(0)) + max_rate = (bw_40MHz) ? ((short_GI_40)?150:135): + ((short_GI_20)?72:65); + } else { + if (mcs->rx_mask[1]) { + if (mcs->rx_mask[1] & BIT(7)) + max_rate = (bw_40MHz) ? ((short_GI_40)?3000:2700):((short_GI_20)?1444:1300); + else if (mcs->rx_mask[1] & BIT(6)) + max_rate = (bw_40MHz) ? ((short_GI_40)?2700:2430):((short_GI_20)?1300:1170); + else if (mcs->rx_mask[1] & BIT(5)) + max_rate = (bw_40MHz) ? ((short_GI_40)?2400:2160):((short_GI_20)?1156:1040); + else if (mcs->rx_mask[1] & BIT(4)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1800:1620):((short_GI_20)?867:780); + else if (mcs->rx_mask[1] & BIT(3)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080):((short_GI_20)?578:520); + else if (mcs->rx_mask[1] & BIT(2)) + max_rate = (bw_40MHz) ? ((short_GI_40)?900:810):((short_GI_20)?433:390); + else if (mcs->rx_mask[1] & BIT(1)) + max_rate = (bw_40MHz) ? ((short_GI_40)?600:540):((short_GI_20)?289:260); + else if (mcs->rx_mask[1] & BIT(0)) + max_rate = (bw_40MHz) ? ((short_GI_40)?300:270):((short_GI_20)?144:130); + } else { + if (mcs->rx_mask[0] & BIT(7)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1500:1350):((short_GI_20)?722:650); + else if (mcs->rx_mask[0] & BIT(6)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1350:1215):((short_GI_20)?650:585); + else if (mcs->rx_mask[0] & BIT(5)) + max_rate = (bw_40MHz) ? ((short_GI_40)?1200:1080):((short_GI_20)?578:520); + else if (mcs->rx_mask[0] & BIT(4)) + max_rate = (bw_40MHz) ? ((short_GI_40)?900:810):((short_GI_20)?433:390); + else if (mcs->rx_mask[0] & BIT(3)) + max_rate = (bw_40MHz) ? ((short_GI_40)?600:540):((short_GI_20)?289:260); + else if (mcs->rx_mask[0] & BIT(2)) + max_rate = (bw_40MHz) ? ((short_GI_40)?450:405):((short_GI_20)?217:195); + else if (mcs->rx_mask[0] & BIT(1)) + max_rate = (bw_40MHz) ? ((short_GI_40)?300:270):((short_GI_20)?144:130); + else if (mcs->rx_mask[0] & BIT(0)) + max_rate = (bw_40MHz) ? ((short_GI_40)?150:135):((short_GI_20)?72:65); + } + } + return max_rate; +} |