diff options
Diffstat (limited to 'drivers/staging/rtl8723au/core/rtw_ieee80211.c')
| -rw-r--r-- | drivers/staging/rtl8723au/core/rtw_ieee80211.c | 1861 |
1 files changed, 1861 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723au/core/rtw_ieee80211.c b/drivers/staging/rtl8723au/core/rtw_ieee80211.c new file mode 100644 index 000000000000..780631fd3b6d --- /dev/null +++ b/drivers/staging/rtl8723au/core/rtw_ieee80211.c @@ -0,0 +1,1861 @@ +/****************************************************************************** + * + * 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 }; + +u16 RSN_VERSION_BSD23A = 1; +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; +} + +uint rtw_is_cckrates_included23a(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_included23a(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_type23a(unsigned char *rate, int ratelen, int channel) +{ + if (channel > 14) { + if ((rtw_is_cckrates_included23a(rate)) == true) + return WIRELESS_INVALID; + else + return WIRELESS_11A; + } else { /* could be pure B, pure G, or B/G */ + if ((rtw_is_cckratesonly_included23a(rate)) == true) + return WIRELESS_11B; + else if ((rtw_is_cckrates_included23a(rate)) == true) + return WIRELESS_11BG; + else + return WIRELESS_11G; + } +} + +u8 *rtw_set_fixed_ie23a(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_ie23a will update frame length */ +u8 *rtw_set_ie23a(u8 *pbuf, int index, uint len, 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 secondary_ch_offset_to_hal_ch_offset23a(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_offset23a(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_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); +} + +inline u8 *rtw_set_ie23a_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; + put_unaligned_le16(reason, (u8*)&ie_data[2]); + put_unaligned_le16(precedence, (u8*)&ie_data[4]); + + return rtw_set_ie23a(buf, 0x118, 6, ie_data, 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 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_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; + + + + /* timestamp will be inserted by hardware */ + sz += 8; + ie += sz; + + /* beacon interval : 2bytes */ + /* BCN_INTERVAL; */ + *(u16*)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod); + sz += 2; + ie += 2; + + /* capability info */ + *(u16*)ie = 0; + + *(u16*)ie |= cpu_to_le16(cap_IBSS); + + if (pregistrypriv->preamble == PREAMBLE_SHORT) + *(u16*)ie |= cpu_to_le16(cap_ShortPremble); + + if (pdev_network->Privacy) + *(u16*)ie |= cpu_to_le16(cap_Privacy); + + sz += 2; + ie += 2; + + /* SSID */ + ie = rtw_set_ie23a(ie, _SSID_IE_, pdev_network->Ssid.ssid_len, + 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_rate23a(pdev_network->SupportedRates, wireless_mode) ; + + rateLen = rtw_get_rateset_len23a(pdev_network->SupportedRates); + + if (rateLen > 8) { + ie = rtw_set_ie23a(ie, _SUPPORTEDRATES_IE_, 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, _SUPPORTEDRATES_IE_, rateLen, + pdev_network->SupportedRates, &sz); + } + + /* DS parameter set */ + ie = rtw_set_ie23a(ie, _DSSET_IE_, 1, + (u8 *)&pdev_network->Configuration.DSConfig, &sz); + + /* IBSS Parameter Set */ + + ie = rtw_set_ie23a(ie, _IBSS_PARA_IE_, 2, + (u8 *)&pdev_network->Configuration.ATIMWindow, &sz); + + if (rateLen > 8) { + ie = rtw_set_ie23a(ie, _EXT_SUPPORTEDRATES_IE_, (rateLen - 8), + (pdev_network->SupportedRates + 8), &sz); + } + + + + /* return _SUCCESS; */ + + return sz; +} + +unsigned char *rtw_get_wpa_ie23a(unsigned char *pie, int *wpa_ie_len, int limit) +{ + int len; + u16 val16; + unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01}; + u8 *pbuf = pie; + int limit_new = limit; + + while(1) { + pbuf = rtw_get_ie23a(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 *)&val16, (pbuf + 6), sizeof(val16)); + + val16 = le16_to_cpu(val16); + 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_ie23a(unsigned char *pie, int *rsn_ie_len, int limit) +{ + return rtw_get_ie23a(pie, _WPA2_IE_ID_, rsn_ie_len, limit); +} + +int rtw_get_wpa_cipher_suite23a(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; +} + +int rtw_get_wpa2_cipher_suite23a(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(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_OUI23A_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_suite23a(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 = 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", __func__, + count, left)); + return _FAIL; + } + + for (i = 0; i < count; i++) { + *pairwise_cipher |= rtw_get_wpa_cipher_suite23a(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_ie23a(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_suite23a(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 = 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", + __func__, count, left)); + return _FAIL; + } + + for (i = 0; i < count; i++) { + *pairwise_cipher |= rtw_get_wpa2_cipher_suite23a(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_ie23a(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_ie23a: 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 = 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 = 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_ie23a(u8 *ie_ptr, uint *wps_ielen) +{ + u8 match = false; + u8 eid, wps_oui[4]= {0x0, 0x50, 0xf2, 0x04}; + + if (!ie_ptr) + return match; + + eid = ie_ptr[0]; + + if ((eid == _WPA_IE_ID_) && !memcmp(&ie_ptr[2], wps_oui, 4)) { + /* DBG_8723A("==> found WPS_IE.....\n"); */ + *wps_ielen = ie_ptr[1] + 2; + match = true; + } + return match; +} + +/** + * rtw_get_wps_ie23a - 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_ie23a(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_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 + */ +u8 *rtw_get_wps_attr23a(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 = 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 + */ +u8 *rtw_get_wps_attr_content23a(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_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); + + 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_8723A("short vendor specific " + "information element ignored (len =%lu)\n", + (unsigned long) elen); + } + return -1; + } + + oui = RTW_GET_BE24(pos); + switch (oui) { + case WLAN_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_8723A("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_8723A("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_8723A("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_8723A("Unknown Broadcom " + "information element ignored " + "(type =%d len =%lu)\n", + pos[3], (unsigned long) elen); + return -1; + } + break; + + default: + DBG_8723A("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_elems23a(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_8723A("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_CAPABILITY: + 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_8723A("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; +} + +static 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_2char2num23a(u8 hch, u8 lch) +{ + return (key_char2num(hch) * 10) + key_char2num(lch); +} + +u8 key_2char2num23a(u8 hch, u8 lch) +{ + return (key_char2num(hch) << 4) | key_char2num(lch); +} + +void rtw_macaddr_cfg23a(u8 *mac_addr) +{ + u8 mac[ETH_ALEN]; + if (!mac_addr) + return; + + memcpy(mac, mac_addr, ETH_ALEN); + + if (is_broadcast_ether_addr(mac) || is_zero_ether_addr(mac)) { + 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_8723A("MAC Address from efuse error, assign default " + "one !!!\n"); + } + DBG_8723A("rtw_macaddr_cfg23a MAC Address = "MAC_FMT"\n", + MAC_ARG(mac_addr)); +} + +void dump_ies23a(u8 *buf, u32 buf_len) { + u8* pos = (u8*)buf; + u8 id, len; + + while (pos-buf <= buf_len) { + id = *pos; + len = *(pos + 1); + + DBG_8723A("%s ID:%u, LEN:%u\n", __func__, id, len); +#ifdef CONFIG_8723AU_P2P + dump_p2p_ie23a(pos, len); +#endif + dump_wps_ie23a(pos, len); + + pos += (2 + len); + } +} + +void dump_wps_ie23a(u8 *ie, u32 ie_len) { + u8* pos = (u8*)ie; + u16 id; + u16 len; + + u8 *wps_ie; + uint wps_ielen; + + wps_ie = rtw_get_wps_ie23a(ie, ie_len, NULL, &wps_ielen); + if (wps_ie != ie || wps_ielen == 0) + return; + + pos+= 6; + while (pos-ie < ie_len) { + id = get_unaligned_be16(pos); + len = get_unaligned_be16(pos + 2); + + DBG_8723A("%s ID:0x%04x, LEN:%u\n", __func__, id, len); + + pos += (4 + len); + } +} + +#ifdef CONFIG_8723AU_P2P +void dump_p2p_ie23a(u8 *ie, u32 ie_len) { + u8* pos = (u8*)ie; + u8 id; + u16 len; + + u8 *p2p_ie; + uint p2p_ielen; + + p2p_ie = rtw_get_p2p_ie23a(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_8723A("%s ID:%u, LEN:%u\n", __func__, id, len); + + pos+= (3+len); + } +} + +/** + * rtw_get_p2p_ie23a - 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_ie23a(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) + *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; + + break; + } else { + cnt += in_ie[cnt + 1] + 2; /* goto next */ + } + } + + return NULL; +} + +/** + * rtw_get_p2p_attr23a - 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_attr23a(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; + + /* 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_p2p_attr23a_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_attr23a_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_attr23a(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_content23a(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); */ + put_unaligned_le16(attr_len, pbuf + 1); + + 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_attr23a(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); + /* dump_ies23a(ie, ielen); */ + + 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 { + /* if (index>0) */ + /* dump_ies23a(ie, ielen); */ + break; + } + } + + return ielen; +} + +void rtw_wlan_bssid_ex_remove_p2p_attr23a(struct wlan_bssid_ex *bss_ex, u8 attr_id) +{ + u8 *p2p_ie; + uint p2p_ielen, p2p_ielen_ori; + + if ((p2p_ie = rtw_get_p2p_ie23a(bss_ex->IEs + _FIXED_IE_LENGTH_, + bss_ex->IELength - _FIXED_IE_LENGTH_, + NULL, &p2p_ielen_ori))) { + 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; + 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_8723AU_P2P */ + +#ifdef CONFIG_8723AU_P2P +int rtw_get_wfd_ie(u8 *in_ie, int in_len, u8 *wfd_ie, uint *wfd_ielen) +{ + int match; + uint cnt = 0; + u8 eid, wfd_oui[4] = {0x50, 0x6F, 0x9A, 0x0A}; + + match = false; + + if (in_len < 0) { + return match; + } + + while (cnt < in_len) + { + eid = in_ie[cnt]; + + if ((eid == _VENDOR_SPECIFIC_IE_) && + !memcmp(&in_ie[cnt+2], wfd_oui, 4)) { + if (wfd_ie != NULL) { + memcpy(wfd_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); + + } else { + if (wfd_ielen != NULL) { + *wfd_ielen = 0; + } + } + + if (wfd_ielen != NULL) { + *wfd_ielen = in_ie[cnt + 1] + 2; + } + + cnt += in_ie[cnt + 1] + 2; + + match = true; + break; + } else { + cnt += in_ie[cnt + 1] +2; /* goto next */ + } + } + + if (match == true) { + match = cnt; + } + + return match; +} + +/* attr_content: The output buffer, contains the "body field" of + WFD attribute. */ +/* attr_contentlen: The data length of the "body field" of WFD + attribute. */ +int rtw_get_wfd_attr_content(u8 *wfd_ie, uint wfd_ielen, u8 target_attr_id, + u8 *attr_content, uint *attr_contentlen) +{ + int match; + uint cnt = 0; + u8 attr_id, wfd_oui[4] = {0x50, 0x6F, 0x9A, 0x0A}; + + match = false; + + if ((wfd_ie[0] != _VENDOR_SPECIFIC_IE_) || + memcmp(wfd_ie + 2, wfd_oui, 4)) { + return match; + } + + /* 1 (WFD IE) + 1 (Length) + 3 (OUI) + 1 (OUI Type) */ + cnt = 6; + while (cnt < wfd_ielen) { + u16 attrlen = get_unaligned_be16(wfd_ie + cnt + 1); + + attr_id = wfd_ie[cnt]; + if (attr_id == target_attr_id) { + /* 3 -> 1 byte for attribute ID field, 2 + bytes for length field */ + if (attr_content) + memcpy(attr_content, &wfd_ie[cnt + 3], attrlen); + + if (attr_contentlen) + *attr_contentlen = attrlen; + + cnt += attrlen + 3; + + match = true; + break; + } else { + cnt += attrlen + 3; /* goto next */ + } + } + + return match; +} +#endif /* CONFIG_8723AU_P2P */ + +/* Baron adds to avoid FreeBSD warning */ +int ieee80211_is_empty_essid23a(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; +} + +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; + int r; + pbuf = rtw_get_wpa_ie23a(&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)); + r = rtw_parse_wpa_ie23a(pbuf, wpa_ielen + 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", __func__, + pnetwork->BcnInfo.pairwise_cipher, + pnetwork->BcnInfo.is_8021x)); + ret = _SUCCESS; + } + } else { + pbuf = rtw_get_wpa2_ie23a(&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")); + r = rtw_parse_wpa2_ie23a(pbuf, wpa_ielen + 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", __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) +{ + unsigned short cap = 0; + u8 bencrypt = 0; + /* u8 wpa_ie[255], rsn_ie[255]; */ + u16 wpa_len = 0, rsn_len = 0; + struct HT_info_element *pht_info = NULL; + struct ieee80211_ht_cap *pht_cap = NULL; + unsigned int len; + unsigned char *p; + + memcpy(&cap, rtw_get_capability23a_from_ie(pnetwork->network.IEs), 2); + cap = le16_to_cpu(cap); + if (cap & WLAN_CAPABILITY_PRIVACY) { + bencrypt = 1; + pnetwork->network.Privacy = 1; + } else { + pnetwork->BcnInfo.encryp_protocol = ENCRYP_PROTOCOL_OPENSYS; + } + rtw_get_sec_ie23a(pnetwork->network.IEs, pnetwork->network.IELength, + NULL, &rsn_len, NULL, &wpa_len); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + ("rtw_get_bcn_info23a: ssid =%s\n", pnetwork->network.Ssid.ssid)); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + ("rtw_get_bcn_info23a: wpa_len =%d rsn_len =%d\n", + wpa_len, rsn_len)); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + ("rtw_get_bcn_info23a: ssid =%s\n", pnetwork->network.Ssid.ssid)); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + ("rtw_get_bcn_info23a: 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_info23a: pnetwork->encryp_protocol is %x\n", + pnetwork->BcnInfo.encryp_protocol)); + RT_TRACE(_module_rtl871x_mlme_c_, _drv_info_, + ("rtw_get_bcn_info23a: 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_ie23a(pnetwork->network.IEs + _FIXED_IE_LENGTH_, + _HT_CAPABILITY_IE_, &len, + pnetwork->network.IELength - _FIXED_IE_LENGTH_); + if (p && len > 0) { + pht_cap = (struct ieee80211_ht_cap *)(p + 2); + pnetwork->BcnInfo.ht_cap_info = pht_cap->cap_info; + } else { + pnetwork->BcnInfo.ht_cap_info = 0; + } + /* parsing HT_INFO_IE */ + p = rtw_get_ie23a(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_rate23a(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_parse23a(const u8 *frame, u32 frame_len, u8* category, + u8 *action) +{ + const u8 *frame_body = frame + sizeof(struct ieee80211_hdr_3addr); + u16 fc; + u8 c, a = 0; + + fc = le16_to_cpu(((struct ieee80211_hdr_3addr *)frame)->frame_control); + + if ((fc & (IEEE80211_FCTL_FTYPE|IEEE80211_FCTL_STYPE)) != + (IEEE80211_FTYPE_MGMT|IEEE80211_STYPE_ACTION)) { + return false; + } + + c = frame_body[0]; + + switch (c) { + case WLAN_CATEGORY_VENDOR_SPECIFIC: /* vendor-specific */ + break; + default: + a = frame_body[1]; + } + + if (category) + *category = c; + if (action) + *action = a; + + return true; +} + +static const char *_action_public_str23a[] = { + "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_str23a(u8 action) +{ + action = (action >= ACT_PUBLIC_MAX) ? ACT_PUBLIC_MAX : action; + return _action_public_str23a[action]; +} |