| /****************************************************************************** |
| * |
| * Copyright(c) 2007 - 2017 Realtek Corporation. |
| * |
| * 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 |
| |
| #ifdef CONFIG_PLATFORM_INTEL_BYT |
| #include <linux/fs.h> |
| #endif |
| #include <drv_types.h> |
| |
| |
| 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 |
| }; |
| |
| u8 mgn_rates_cck[4] = {MGN_1M, MGN_2M, MGN_5_5M, MGN_11M}; |
| u8 mgn_rates_ofdm[8] = {MGN_6M, MGN_9M, MGN_12M, MGN_18M, MGN_24M, MGN_36M, MGN_48M, MGN_54M}; |
| u8 mgn_rates_mcs0_7[8] = {MGN_MCS0, MGN_MCS1, MGN_MCS2, MGN_MCS3, MGN_MCS4, MGN_MCS5, MGN_MCS6, MGN_MCS7}; |
| u8 mgn_rates_mcs8_15[8] = {MGN_MCS8, MGN_MCS9, MGN_MCS10, MGN_MCS11, MGN_MCS12, MGN_MCS13, MGN_MCS14, MGN_MCS15}; |
| u8 mgn_rates_mcs16_23[8] = {MGN_MCS16, MGN_MCS17, MGN_MCS18, MGN_MCS19, MGN_MCS20, MGN_MCS21, MGN_MCS22, MGN_MCS23}; |
| u8 mgn_rates_mcs24_31[8] = {MGN_MCS24, MGN_MCS25, MGN_MCS26, MGN_MCS27, MGN_MCS28, MGN_MCS29, MGN_MCS30, MGN_MCS31}; |
| u8 mgn_rates_vht1ss[10] = {MGN_VHT1SS_MCS0, MGN_VHT1SS_MCS1, MGN_VHT1SS_MCS2, MGN_VHT1SS_MCS3, MGN_VHT1SS_MCS4 |
| , MGN_VHT1SS_MCS5, MGN_VHT1SS_MCS6, MGN_VHT1SS_MCS7, MGN_VHT1SS_MCS8, MGN_VHT1SS_MCS9 |
| }; |
| u8 mgn_rates_vht2ss[10] = {MGN_VHT2SS_MCS0, MGN_VHT2SS_MCS1, MGN_VHT2SS_MCS2, MGN_VHT2SS_MCS3, MGN_VHT2SS_MCS4 |
| , MGN_VHT2SS_MCS5, MGN_VHT2SS_MCS6, MGN_VHT2SS_MCS7, MGN_VHT2SS_MCS8, MGN_VHT2SS_MCS9 |
| }; |
| u8 mgn_rates_vht3ss[10] = {MGN_VHT3SS_MCS0, MGN_VHT3SS_MCS1, MGN_VHT3SS_MCS2, MGN_VHT3SS_MCS3, MGN_VHT3SS_MCS4 |
| , MGN_VHT3SS_MCS5, MGN_VHT3SS_MCS6, MGN_VHT3SS_MCS7, MGN_VHT3SS_MCS8, MGN_VHT3SS_MCS9 |
| }; |
| u8 mgn_rates_vht4ss[10] = {MGN_VHT4SS_MCS0, MGN_VHT4SS_MCS1, MGN_VHT4SS_MCS2, MGN_VHT4SS_MCS3, MGN_VHT4SS_MCS4 |
| , MGN_VHT4SS_MCS5, MGN_VHT4SS_MCS6, MGN_VHT4SS_MCS7, MGN_VHT4SS_MCS8, MGN_VHT4SS_MCS9 |
| }; |
| |
| static const char *const _rate_section_str[] = { |
| "CCK", |
| "OFDM", |
| "HT_1SS", |
| "HT_2SS", |
| "HT_3SS", |
| "HT_4SS", |
| "VHT_1SS", |
| "VHT_2SS", |
| "VHT_3SS", |
| "VHT_4SS", |
| "RATE_SECTION_UNKNOWN", |
| }; |
| |
| const char *rate_section_str(u8 section) |
| { |
| section = (section >= RATE_SECTION_NUM) ? RATE_SECTION_NUM : section; |
| return _rate_section_str[section]; |
| } |
| |
| struct rate_section_ent rates_by_sections[RATE_SECTION_NUM] = { |
| {RF_1TX, 4, mgn_rates_cck}, |
| {RF_1TX, 8, mgn_rates_ofdm}, |
| {RF_1TX, 8, mgn_rates_mcs0_7}, |
| {RF_2TX, 8, mgn_rates_mcs8_15}, |
| {RF_3TX, 8, mgn_rates_mcs16_23}, |
| {RF_4TX, 8, mgn_rates_mcs24_31}, |
| {RF_1TX, 10, mgn_rates_vht1ss}, |
| {RF_2TX, 10, mgn_rates_vht2ss}, |
| {RF_3TX, 10, mgn_rates_vht3ss}, |
| {RF_4TX, 10, mgn_rates_vht4ss}, |
| }; |
| |
| 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) |
| { |
| _rtw_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, |
| sint index, |
| uint len, |
| u8 *source, |
| uint *frlen /* frame length */ |
| ) |
| { |
| *pbuf = (u8)index; |
| |
| *(pbuf + 1) = (u8)len; |
| |
| if (len > 0) |
| _rtw_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_LOWER; |
| else if (ch_offset == SCB) |
| return HAL_PRIME_CHNL_OFFSET_UPPER; |
| |
| 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 SCA; |
| else if (ch_offset == HAL_PRIME_CHNL_OFFSET_UPPER) |
| return SCB; |
| |
| 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; |
| RTW_PUT_LE16((u8 *)&ie_data[2], reason); |
| RTW_PUT_LE16((u8 *)&ie_data[4], 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(const u8 *pbuf, sint index, sint *len, sint limit) |
| { |
| sint tmp, i; |
| const u8 *p; |
| if (limit < 1) { |
| return NULL; |
| } |
| |
| p = pbuf; |
| i = 0; |
| *len = 0; |
| while (1) { |
| if (*p == index) { |
| *len = *(p + 1); |
| return (u8 *)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 || _rtw_memcmp(&in_ie[cnt + 2], oui, oui_len) == _TRUE)) { |
| target_ie = &in_ie[cnt]; |
| |
| if (ie) |
| _rtw_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 *remain_ies = target_ie + target_ielen; |
| uint remain_len = search_len - (remain_ies - start); |
| |
| _rtw_memmove(target_ie, remain_ies, 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) |
| { |
| |
| _rtw_memset(SupportedRates, 0, NDIS_802_11_LENGTH_RATES_EX); |
| |
| switch (mode) { |
| case WIRELESS_11B: |
| _rtw_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 ? */ |
| case WIRELESS_11_5AC: |
| _rtw_memcpy(SupportedRates, WIFI_OFDMRATES, IEEE80211_NUM_OFDM_RATESLEN); |
| break; |
| |
| case WIRELESS_11BG: |
| case WIRELESS_11G_24N: |
| case WIRELESS_11_24N: |
| case WIRELESS_11BG_24N: |
| _rtw_memcpy(SupportedRates, WIFI_CCKRATES, IEEE80211_CCK_RATE_LEN); |
| _rtw_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; |
| 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 */ |
| *(u16 *)ie = cpu_to_le16((u16)pdev_network->Configuration.BeaconPeriod); /* BCN_INTERVAL; */ |
| 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_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 if (pregistrypriv->wireless_mode == WIRELESS_MODE_MAX) { /* WIRELESS_11ABGN | WIRELESS_11AC */ |
| if (pdev_network->Configuration.DSConfig > 14) |
| wireless_mode = WIRELESS_11_5AC; |
| 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); |
| |
| #ifdef CONFIG_80211N_HT |
| /* HT Cap. */ |
| if (((pregistrypriv->wireless_mode & WIRELESS_11_5N) || (pregistrypriv->wireless_mode & WIRELESS_11_24N)) |
| && (pregistrypriv->ht_enable == _TRUE)) { |
| /* todo: */ |
| } |
| #endif /* CONFIG_80211N_HT */ |
| |
| /* pdev_network->IELength = sz; */ /* update IELength */ |
| |
| |
| /* return _SUCCESS; */ |
| |
| return sz; |
| |
| } |
| |
| unsigned char *rtw_get_wpa_ie(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_ie(pbuf, _WPA_IE_ID_, &len, limit_new); |
| |
| if (pbuf) { |
| |
| /* check if oui matches... */ |
| if (_rtw_memcmp((pbuf + 2), wpa_oui_type, sizeof(wpa_oui_type)) == _FALSE) |
| |
| goto check_next_ie; |
| |
| /* check version... */ |
| _rtw_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_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 (_rtw_memcmp(s, WPA_CIPHER_SUITE_NONE, WPA_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_NONE; |
| if (_rtw_memcmp(s, WPA_CIPHER_SUITE_WEP40, WPA_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_WEP40; |
| if (_rtw_memcmp(s, WPA_CIPHER_SUITE_TKIP, WPA_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_TKIP; |
| if (_rtw_memcmp(s, WPA_CIPHER_SUITE_CCMP, WPA_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_CCMP; |
| if (_rtw_memcmp(s, WPA_CIPHER_SUITE_WEP104, WPA_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_WEP104; |
| |
| return 0; |
| } |
| |
| int rtw_get_wpa2_cipher_suite(u8 *s) |
| { |
| if (_rtw_memcmp(s, RSN_CIPHER_SUITE_NONE, RSN_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_NONE; |
| if (_rtw_memcmp(s, RSN_CIPHER_SUITE_WEP40, RSN_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_WEP40; |
| if (_rtw_memcmp(s, RSN_CIPHER_SUITE_TKIP, RSN_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_TKIP; |
| if (_rtw_memcmp(s, RSN_CIPHER_SUITE_CCMP, RSN_SELECTOR_LEN) == _TRUE) |
| return WPA_CIPHER_CCMP; |
| if (_rtw_memcmp(s, RSN_CIPHER_SUITE_WEP104, RSN_SELECTOR_LEN) == _TRUE) |
| 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)) || |
| (_rtw_memcmp(wpa_ie + 2, RTW_WPA_OUI_TYPE, WPA_SELECTOR_LEN) != _TRUE)) |
| 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) { |
| |
| return _FAIL; |
| } |
| |
| |
| /* pairwise_cipher */ |
| if (left >= 2) { |
| /* count = le16_to_cpu(*(u16*)pos); */ |
| count = RTW_GET_LE16(pos); |
| pos += 2; |
| left -= 2; |
| |
| if (count == 0 || left < count * WPA_SELECTOR_LEN) { |
| 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) { |
| return _FAIL; |
| } |
| |
| if (is_8021x) { |
| if (left >= 6) { |
| pos += 2; |
| if (_rtw_memcmp(pos, SUITE_1X, 4) == 1) { |
| *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) { |
| return _FAIL; |
| } |
| |
| /* pairwise_cipher */ |
| if (left >= 2) { |
| /* count = le16_to_cpu(*(u16*)pos); */ |
| count = RTW_GET_LE16(pos); |
| pos += 2; |
| left -= 2; |
| |
| if (count == 0 || left < count * RSN_SELECTOR_LEN) { |
| 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) { |
| |
| return _FAIL; |
| } |
| |
| if (is_8021x) { |
| if (left >= 6) { |
| pos += 2; |
| if (_rtw_memcmp(pos, SUITE_1X, 4) == 1) { |
| *is_8021x = 1; |
| } |
| } |
| } |
| |
| return ret; |
| |
| } |
| |
| /* #ifdef CONFIG_WAPI_SUPPORT */ |
| int rtw_get_wapi_ie(u8 *in_ie, uint in_len, u8 *wapi_ie, u16 *wapi_len) |
| { |
| int len = 0; |
| u8 authmode, i; |
| uint cnt; |
| u8 wapi_oui1[4] = {0x0, 0x14, 0x72, 0x01}; |
| u8 wapi_oui2[4] = {0x0, 0x14, 0x72, 0x02}; |
| |
| |
| if (wapi_len) |
| *wapi_len = 0; |
| |
| if (!in_ie || in_len <= 0) |
| return len; |
| |
| cnt = (_TIMESTAMP_ + _BEACON_ITERVAL_ + _CAPABILITY_); |
| |
| while (cnt < in_len) { |
| authmode = in_ie[cnt]; |
| |
| /* if(authmode==_WAPI_IE_) */ |
| if (authmode == _WAPI_IE_ && (_rtw_memcmp(&in_ie[cnt + 6], wapi_oui1, 4) == _TRUE || |
| _rtw_memcmp(&in_ie[cnt + 6], wapi_oui2, 4) == _TRUE)) { |
| if (wapi_ie) |
| _rtw_memcpy(wapi_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| if (wapi_len) |
| *wapi_len = in_ie[cnt + 1] + 2; |
| |
| cnt += in_ie[cnt + 1] + 2; /* get next */ |
| } else { |
| cnt += in_ie[cnt + 1] + 2; /* get next */ |
| } |
| } |
| |
| if (wapi_len) |
| len = *wapi_len; |
| |
| |
| return len; |
| |
| } |
| /* #endif */ |
| |
| 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_) && (_rtw_memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4) == _TRUE)) { |
| |
| if (wpa_ie) |
| _rtw_memcpy(wpa_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| *wpa_len = in_ie[cnt + 1] + 2; |
| cnt += in_ie[cnt + 1] + 2; /* get next */ |
| } else { |
| if (authmode == _WPA2_IE_ID_) { |
| |
| if (rsn_ie) |
| _rtw_memcpy(rsn_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| *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_) && (_rtw_memcmp(&ie_ptr[2], wps_oui, 4) == _TRUE)) { |
| /* RTW_INFO("==> found WPS_IE.....\n"); */ |
| *wps_ielen = ie_ptr[1] + 2; |
| match = _TRUE; |
| } |
| return match; |
| } |
| |
| u8 *rtw_get_wps_ie_from_scan_queue(u8 *in_ie, uint in_len, u8 *wps_ie, uint *wps_ielen, enum bss_type frame_type) |
| { |
| u8 *wps = NULL; |
| |
| RTW_INFO("[%s] frame_type = %d\n", __FUNCTION__, frame_type); |
| switch (frame_type) { |
| case BSS_TYPE_BCN: |
| case BSS_TYPE_PROB_RSP: { |
| /* Beacon or Probe Response */ |
| wps = rtw_get_wps_ie(in_ie + _PROBERSP_IE_OFFSET_, in_len - _PROBERSP_IE_OFFSET_, wps_ie, wps_ielen); |
| break; |
| } |
| case BSS_TYPE_PROB_REQ: { |
| /* Probe Request */ |
| wps = rtw_get_wps_ie(in_ie + _PROBEREQ_IE_OFFSET_ , in_len - _PROBEREQ_IE_OFFSET_ , wps_ie, wps_ielen); |
| break; |
| } |
| default: |
| case BSS_TYPE_UNDEF: |
| break; |
| } |
| return wps; |
| } |
| |
| /** |
| * 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] = {0x00, 0x50, 0xf2, 0x04}; |
| |
| if (wps_ielen) |
| *wps_ielen = 0; |
| |
| if (!in_ie) { |
| rtw_warn_on(1); |
| return wpsie_ptr; |
| } |
| |
| if (in_len <= 0) |
| return wpsie_ptr; |
| |
| cnt = 0; |
| |
| while (cnt + 1 + 4 < in_len) { |
| eid = in_ie[cnt]; |
| |
| if (cnt + 1 + 4 >= MAX_IE_SZ) { |
| rtw_warn_on(1); |
| return NULL; |
| } |
| |
| if (eid == WLAN_EID_VENDOR_SPECIFIC && _rtw_memcmp(&in_ie[cnt + 2], wps_oui, 4) == _TRUE) { |
| wpsie_ptr = in_ie + cnt; |
| |
| if (wps_ie) |
| _rtw_memcpy(wps_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| if (wps_ielen) |
| *wps_ielen = in_ie[cnt + 1] + 2; |
| |
| break; |
| } else |
| cnt += in_ie[cnt + 1] + 2; |
| |
| } |
| |
| 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_) || |
| (_rtw_memcmp(wps_ie + 2, wps_oui , 4) != _TRUE)) |
| 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; |
| |
| /* RTW_INFO("%s attr_ptr:%p, id:%u, length:%u\n", __FUNCTION__, attr_ptr, attr_id, attr_data_len); */ |
| if (attr_id == target_attr_id) { |
| target_attr_ptr = attr_ptr; |
| |
| if (buf_attr) |
| _rtw_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) |
| _rtw_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) { |
| RTW_INFO("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) { |
| RTW_DBG("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: |
| RTW_DBG("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: |
| RTW_DBG("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: |
| RTW_DBG("Unknown Broadcom " |
| "information element ignored " |
| "(type=%d len=%lu)\n", |
| pos[3], (unsigned long) elen); |
| return -1; |
| } |
| break; |
| |
| default: |
| RTW_DBG("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 |
| */ |
| ParseRes 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; |
| |
| _rtw_memset(elems, 0, sizeof(*elems)); |
| |
| while (left >= 2) { |
| u8 id, elen; |
| |
| id = *pos++; |
| elen = *pos++; |
| left -= 2; |
| |
| if (elen > left) { |
| if (show_errors) { |
| RTW_INFO("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; |
| case WLAN_EID_VHT_CAPABILITY: |
| elems->vht_capabilities = pos; |
| elems->vht_capabilities_len = elen; |
| break; |
| case WLAN_EID_VHT_OPERATION: |
| elems->vht_operation = pos; |
| elems->vht_operation_len = elen; |
| break; |
| case WLAN_EID_VHT_OP_MODE_NOTIFY: |
| elems->vht_op_mode_notify = pos; |
| elems->vht_op_mode_notify_len = elen; |
| break; |
| default: |
| unknown++; |
| if (!show_errors) |
| break; |
| RTW_DBG("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); |
| 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_2char2num(u8 hch, u8 lch); |
| u8 str_2char2num(u8 hch, u8 lch) |
| { |
| return (key_char2num(hch) * 10) + key_char2num(lch); |
| } |
| |
| u8 key_2char2num(u8 hch, u8 lch); |
| u8 key_2char2num(u8 hch, u8 lch) |
| { |
| return (key_char2num(hch) << 4) | key_char2num(lch); |
| } |
| |
| void macstr2num(u8 *dst, u8 *src); |
| void macstr2num(u8 *dst, u8 *src) |
| { |
| int jj, kk; |
| for (jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 3) |
| dst[jj] = key_2char2num(src[kk], src[kk + 1]); |
| } |
| |
| u8 convert_ip_addr(u8 hch, u8 mch, u8 lch) |
| { |
| return (key_char2num(hch) * 100) + (key_char2num(mch) * 10) + key_char2num(lch); |
| } |
| |
| #ifdef CONFIG_PLATFORM_INTEL_BYT |
| #define MAC_ADDRESS_LEN 12 |
| |
| int rtw_get_mac_addr_intel(unsigned char *buf) |
| { |
| int ret = 0; |
| int i; |
| struct file *fp = NULL; |
| mm_segment_t oldfs; |
| unsigned char c_mac[MAC_ADDRESS_LEN]; |
| char fname[] = "/config/wifi/mac.txt"; |
| int jj, kk; |
| |
| RTW_INFO("%s Enter\n", __FUNCTION__); |
| |
| ret = rtw_retrieve_from_file(fname, c_mac, MAC_ADDRESS_LEN); |
| if (ret < MAC_ADDRESS_LEN) |
| return -1; |
| |
| for (jj = 0, kk = 0; jj < ETH_ALEN; jj++, kk += 2) |
| buf[jj] = key_2char2num(c_mac[kk], c_mac[kk + 1]); |
| |
| RTW_INFO("%s: read from file mac address: "MAC_FMT"\n", |
| __FUNCTION__, MAC_ARG(buf)); |
| |
| return 0; |
| } |
| #endif /* CONFIG_PLATFORM_INTEL_BYT */ |
| |
| /* |
| * Description: |
| * rtw_check_invalid_mac_address: |
| * This is only used for checking mac address valid or not. |
| * |
| * Input: |
| * adapter: mac_address pointer. |
| * check_local_bit: check locally bit or not. |
| * |
| * Output: |
| * _TRUE: The mac address is invalid. |
| * _FALSE: The mac address is valid. |
| * |
| * Auther: Isaac.Li |
| */ |
| u8 rtw_check_invalid_mac_address(u8 *mac_addr, u8 check_local_bit) |
| { |
| u8 null_mac_addr[ETH_ALEN] = {0, 0, 0, 0, 0, 0}; |
| u8 multi_mac_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| u8 res = _FALSE; |
| |
| if (_rtw_memcmp(mac_addr, null_mac_addr, ETH_ALEN)) { |
| res = _TRUE; |
| goto func_exit; |
| } |
| |
| if (_rtw_memcmp(mac_addr, multi_mac_addr, ETH_ALEN)) { |
| res = _TRUE; |
| goto func_exit; |
| } |
| |
| if (mac_addr[0] & BIT0) { |
| res = _TRUE; |
| goto func_exit; |
| } |
| |
| if (check_local_bit == _TRUE) { |
| if (mac_addr[0] & BIT1) { |
| res = _TRUE; |
| goto func_exit; |
| } |
| } |
| |
| func_exit: |
| return res; |
| } |
| |
| extern char *rtw_initmac; |
| /** |
| * rtw_macaddr_cfg - Decide the mac address used |
| * @out: buf to store mac address decided |
| * @hw_mac_addr: mac address from efuse/epprom |
| */ |
| void rtw_macaddr_cfg(u8 *out, const u8 *hw_mac_addr) |
| { |
| #define DEFAULT_RANDOM_MACADDR 1 |
| u8 mac[ETH_ALEN]; |
| |
| if (out == NULL) { |
| rtw_warn_on(1); |
| return; |
| } |
| |
| /* Users specify the mac address */ |
| if (rtw_initmac) { |
| 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]); |
| |
| goto err_chk; |
| } |
| |
| /* platform specified */ |
| #ifdef CONFIG_PLATFORM_INTEL_BYT |
| if (rtw_get_mac_addr_intel(mac) == 0) |
| goto err_chk; |
| #endif |
| |
| /* Use the mac address stored in the Efuse */ |
| if (hw_mac_addr) { |
| _rtw_memcpy(mac, hw_mac_addr, ETH_ALEN); |
| goto err_chk; |
| } |
| |
| err_chk: |
| if (rtw_check_invalid_mac_address(mac, _TRUE) == _TRUE) { |
| #if DEFAULT_RANDOM_MACADDR |
| RTW_ERR("invalid mac addr:"MAC_FMT", assign random MAC\n", MAC_ARG(mac)); |
| *((u32 *)(&mac[2])) = rtw_random32(); |
| mac[0] = 0x00; |
| mac[1] = 0xe0; |
| mac[2] = 0x4c; |
| #else |
| RTW_ERR("invalid mac addr:"MAC_FMT", assign default one\n", MAC_ARG(mac)); |
| mac[0] = 0x00; |
| mac[1] = 0xe0; |
| mac[2] = 0x4c; |
| mac[3] = 0x87; |
| mac[4] = 0x00; |
| mac[5] = 0x00; |
| #endif |
| } |
| |
| _rtw_memcpy(out, mac, ETH_ALEN); |
| RTW_INFO("%s mac addr:"MAC_FMT"\n", __func__, MAC_ARG(out)); |
| } |
| |
| #ifdef CONFIG_80211N_HT |
| void dump_ht_cap_ie_content(void *sel, const u8 *buf, u32 buf_len) |
| { |
| if (buf_len != HT_CAP_IE_LEN) { |
| RTW_PRINT_SEL(sel, "Invalid HT capability IE len:%d != %d\n", buf_len, HT_CAP_IE_LEN); |
| return; |
| } |
| |
| RTW_PRINT_SEL(sel, "cap_info:%02x%02x:%s\n", *(buf), *(buf + 1) |
| , GET_HT_CAP_ELE_CHL_WIDTH(buf) ? " 40MHz" : " 20MHz"); |
| RTW_PRINT_SEL(sel, "A-MPDU Parameters:"HT_AMPDU_PARA_FMT"\n" |
| , HT_AMPDU_PARA_ARG(HT_CAP_ELE_AMPDU_PARA(buf))); |
| RTW_PRINT_SEL(sel, "Supported MCS Set:"HT_SUP_MCS_SET_FMT"\n" |
| , HT_SUP_MCS_SET_ARG(HT_CAP_ELE_SUP_MCS_SET(buf))); |
| } |
| |
| void dump_ht_cap_ie(void *sel, const u8 *ie, u32 ie_len) |
| { |
| const u8 *pos = ie; |
| u16 id; |
| u16 len; |
| |
| const u8 *ht_cap_ie; |
| sint ht_cap_ielen; |
| |
| ht_cap_ie = rtw_get_ie(ie, WLAN_EID_HT_CAP, &ht_cap_ielen, ie_len); |
| if (!ie || ht_cap_ie != ie) |
| return; |
| |
| dump_ht_cap_ie_content(sel, ht_cap_ie + 2, ht_cap_ielen); |
| } |
| |
| const char *const _ht_sc_offset_str[] = { |
| "SCN", |
| "SCA", |
| "SC-RSVD", |
| "SCB", |
| }; |
| |
| void dump_ht_op_ie_content(void *sel, const u8 *buf, u32 buf_len) |
| { |
| if (buf_len != HT_OP_IE_LEN) { |
| RTW_PRINT_SEL(sel, "Invalid HT operation IE len:%d != %d\n", buf_len, HT_OP_IE_LEN); |
| return; |
| } |
| |
| RTW_PRINT_SEL(sel, "ch:%u%s %s\n" |
| , GET_HT_OP_ELE_PRI_CHL(buf) |
| , GET_HT_OP_ELE_STA_CHL_WIDTH(buf) ? "" : " 20MHz only" |
| , ht_sc_offset_str(GET_HT_OP_ELE_2ND_CHL_OFFSET(buf)) |
| ); |
| } |
| |
| void dump_ht_op_ie(void *sel, const u8 *ie, u32 ie_len) |
| { |
| const u8 *pos = ie; |
| u16 id; |
| u16 len; |
| |
| const u8 *ht_op_ie; |
| sint ht_op_ielen; |
| |
| ht_op_ie = rtw_get_ie(ie, WLAN_EID_HT_OPERATION, &ht_op_ielen, ie_len); |
| if (!ie || ht_op_ie != ie) |
| return; |
| |
| dump_ht_op_ie_content(sel, ht_op_ie + 2, ht_op_ielen); |
| } |
| #endif /* CONFIG_80211N_HT */ |
| |
| void dump_ies(void *sel, u8 *buf, u32 buf_len) |
| { |
| u8 *pos = (u8 *)buf; |
| u8 id, len; |
| |
| while (pos - buf + 1 < buf_len) { |
| id = *pos; |
| len = *(pos + 1); |
| |
| RTW_PRINT_SEL(sel, "%s ID:%u, LEN:%u\n", __FUNCTION__, id, len); |
| #ifdef CONFIG_80211N_HT |
| dump_ht_cap_ie(sel, pos, len + 2); |
| dump_ht_op_ie(sel, pos, len + 2); |
| #endif |
| #ifdef CONFIG_80211AC_VHT |
| dump_vht_cap_ie(sel, pos, len + 2); |
| dump_vht_op_ie(sel, pos, len + 2); |
| #endif |
| dump_wps_ie(sel, pos, len + 2); |
| #ifdef CONFIG_P2P |
| dump_p2p_ie(sel, pos, len + 2); |
| #ifdef CONFIG_WFD |
| dump_wfd_ie(sel, pos, len + 2); |
| #endif |
| #endif |
| |
| pos += (2 + len); |
| } |
| } |
| |
| void dump_wps_ie(void *sel, 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 + 4 <= ie_len) { |
| id = RTW_GET_BE16(pos); |
| len = RTW_GET_BE16(pos + 2); |
| |
| RTW_PRINT_SEL(sel, "%s ID:0x%04x, LEN:%u%s\n", __func__, id, len |
| , ((pos - ie + 4 + len) <= ie_len) ? "" : "(exceed ie_len)"); |
| |
| pos += (4 + len); |
| } |
| } |
| |
| /** |
| * rtw_ies_get_chbw - get operation ch, bw, offset from IEs of BSS. |
| * @ies: pointer of the first tlv IE |
| * @ies_len: length of @ies |
| * @ch: pointer of ch, used as output |
| * @bw: pointer of bw, used as output |
| * @offset: pointer of offset, used as output |
| * @ht: check HT IEs |
| * @vht: check VHT IEs, if true imply ht is true |
| */ |
| void rtw_ies_get_chbw(u8 *ies, int ies_len, u8 *ch, u8 *bw, u8 *offset, u8 ht, u8 vht) |
| { |
| u8 *p; |
| int ie_len; |
| |
| *ch = 0; |
| *bw = CHANNEL_WIDTH_20; |
| *offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE; |
| |
| p = rtw_get_ie(ies, _DSSET_IE_, &ie_len, ies_len); |
| if (p && ie_len > 0) |
| *ch = *(p + 2); |
| |
| #ifdef CONFIG_80211N_HT |
| if (ht || vht) { |
| u8 *ht_cap_ie, *ht_op_ie; |
| int ht_cap_ielen, ht_op_ielen; |
| |
| ht_cap_ie = rtw_get_ie(ies, EID_HTCapability, &ht_cap_ielen, ies_len); |
| if (ht_cap_ie && ht_cap_ielen) { |
| if (GET_HT_CAP_ELE_CHL_WIDTH(ht_cap_ie + 2)) |
| *bw = CHANNEL_WIDTH_40; |
| } |
| |
| ht_op_ie = rtw_get_ie(ies, EID_HTInfo, &ht_op_ielen, ies_len); |
| if (ht_op_ie && ht_op_ielen) { |
| if (*ch == 0) |
| *ch = GET_HT_OP_ELE_PRI_CHL(ht_op_ie + 2); |
| else if (*ch != 0 && *ch != GET_HT_OP_ELE_PRI_CHL(ht_op_ie + 2)) { |
| RTW_INFO("%s ch inconsistent, DSSS:%u, HT primary:%u\n" |
| , __func__, *ch, GET_HT_OP_ELE_PRI_CHL(ht_op_ie + 2)); |
| } |
| |
| if (!GET_HT_OP_ELE_STA_CHL_WIDTH(ht_op_ie + 2)) |
| *bw = CHANNEL_WIDTH_20; |
| |
| if (*bw == CHANNEL_WIDTH_40) { |
| switch (GET_HT_OP_ELE_2ND_CHL_OFFSET(ht_op_ie + 2)) { |
| case SCA: |
| *offset = HAL_PRIME_CHNL_OFFSET_LOWER; |
| break; |
| case SCB: |
| *offset = HAL_PRIME_CHNL_OFFSET_UPPER; |
| break; |
| } |
| } |
| } |
| |
| #ifdef CONFIG_80211AC_VHT |
| if (vht) { |
| u8 *vht_op_ie; |
| int vht_op_ielen; |
| |
| vht_op_ie = rtw_get_ie(ies, EID_VHTOperation, &vht_op_ielen, ies_len); |
| if (vht_op_ie && vht_op_ielen) { |
| if (GET_VHT_OPERATION_ELE_CHL_WIDTH(vht_op_ie + 2) >= 1) |
| *bw = CHANNEL_WIDTH_80; |
| } |
| } |
| #endif /* CONFIG_80211AC_VHT */ |
| |
| } |
| #endif /* CONFIG_80211N_HT */ |
| } |
| |
| void rtw_bss_get_chbw(WLAN_BSSID_EX *bss, u8 *ch, u8 *bw, u8 *offset, u8 ht, u8 vht) |
| { |
| rtw_ies_get_chbw(bss->IEs + sizeof(NDIS_802_11_FIXED_IEs) |
| , bss->IELength - sizeof(NDIS_802_11_FIXED_IEs) |
| , ch, bw, offset, ht, vht); |
| |
| if (*ch == 0) |
| *ch = bss->Configuration.DSConfig; |
| else if (*ch != bss->Configuration.DSConfig) { |
| RTW_INFO("inconsistent ch - ies:%u bss->Configuration.DSConfig:%u\n" |
| , *ch, bss->Configuration.DSConfig); |
| *ch = bss->Configuration.DSConfig; |
| rtw_warn_on(1); |
| } |
| } |
| |
| /** |
| * rtw_is_chbw_grouped - test if the two ch settings can be grouped together |
| * @ch_a: ch of set a |
| * @bw_a: bw of set a |
| * @offset_a: offset of set a |
| * @ch_b: ch of set b |
| * @bw_b: bw of set b |
| * @offset_b: offset of set b |
| */ |
| bool rtw_is_chbw_grouped(u8 ch_a, u8 bw_a, u8 offset_a |
| , u8 ch_b, u8 bw_b, u8 offset_b) |
| { |
| bool is_grouped = _FALSE; |
| |
| if (ch_a != ch_b) { |
| /* ch is different */ |
| goto exit; |
| } else if ((bw_a == CHANNEL_WIDTH_40 || bw_a == CHANNEL_WIDTH_80) |
| && (bw_b == CHANNEL_WIDTH_40 || bw_b == CHANNEL_WIDTH_80) |
| ) { |
| if (offset_a != offset_b) |
| goto exit; |
| } |
| |
| is_grouped = _TRUE; |
| |
| exit: |
| return is_grouped; |
| } |
| |
| /** |
| * rtw_sync_chbw - obey g_ch, adjust g_bw, g_offset, bw, offset |
| * @req_ch: pointer of the request ch, may be modified further |
| * @req_bw: pointer of the request bw, may be modified further |
| * @req_offset: pointer of the request offset, may be modified further |
| * @g_ch: pointer of the ongoing group ch |
| * @g_bw: pointer of the ongoing group bw, may be modified further |
| * @g_offset: pointer of the ongoing group offset, may be modified further |
| */ |
| void rtw_sync_chbw(u8 *req_ch, u8 *req_bw, u8 *req_offset |
| , u8 *g_ch, u8 *g_bw, u8 *g_offset) |
| { |
| |
| *req_ch = *g_ch; |
| |
| if (*req_bw == CHANNEL_WIDTH_80 && *g_ch <= 14) { |
| /*2.4G ch, downgrade to 40Mhz */ |
| *req_bw = CHANNEL_WIDTH_40; |
| } |
| |
| switch (*req_bw) { |
| case CHANNEL_WIDTH_80: |
| if (*g_bw == CHANNEL_WIDTH_40 || *g_bw == CHANNEL_WIDTH_80) |
| *req_offset = *g_offset; |
| else if (*g_bw == CHANNEL_WIDTH_20) |
| rtw_get_offset_by_chbw(*req_ch, *req_bw, req_offset); |
| |
| if (*req_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) { |
| RTW_ERR("%s req 80MHz BW without offset, down to 20MHz\n", __func__); |
| rtw_warn_on(1); |
| *req_bw = CHANNEL_WIDTH_20; |
| } |
| break; |
| case CHANNEL_WIDTH_40: |
| if (*g_bw == CHANNEL_WIDTH_40 || *g_bw == CHANNEL_WIDTH_80) |
| *req_offset = *g_offset; |
| else if (*g_bw == CHANNEL_WIDTH_20) |
| rtw_get_offset_by_chbw(*req_ch, *req_bw, req_offset); |
| |
| if (*req_offset == HAL_PRIME_CHNL_OFFSET_DONT_CARE) { |
| RTW_ERR("%s req 40MHz BW without offset, down to 20MHz\n", __func__); |
| rtw_warn_on(1); |
| *req_bw = CHANNEL_WIDTH_20; |
| } |
| break; |
| case CHANNEL_WIDTH_20: |
| *req_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE; |
| break; |
| default: |
| RTW_ERR("%s req unsupported BW:%u\n", __func__, *req_bw); |
| rtw_warn_on(1); |
| } |
| |
| if (*req_bw > *g_bw) { |
| *g_bw = *req_bw; |
| *g_offset = *req_offset; |
| } |
| } |
| |
| /** |
| * rtw_get_p2p_merged_len - Get merged ie length from muitiple p2p ies. |
| * @in_ie: Pointer of the first p2p ie |
| * @in_len: Total len of muiltiple p2p ies |
| * Returns: Length of merged p2p ie length |
| */ |
| u32 rtw_get_p2p_merged_ies_len(u8 *in_ie, u32 in_len) |
| { |
| PNDIS_802_11_VARIABLE_IEs pIE; |
| u8 OUI[4] = { 0x50, 0x6f, 0x9a, 0x09 }; |
| int i = 0; |
| int j = 0, len = 0; |
| |
| while (i < in_len) { |
| pIE = (PNDIS_802_11_VARIABLE_IEs)(in_ie + i); |
| |
| if (pIE->ElementID == _VENDOR_SPECIFIC_IE_ && _rtw_memcmp(pIE->data, OUI, 4)) { |
| len += pIE->Length - 4; /* 4 is P2P OUI length, don't count it in this loop */ |
| } |
| |
| i += (pIE->Length + 2); |
| } |
| |
| return len + 4; /* Append P2P OUI length at last. */ |
| } |
| |
| /** |
| * rtw_p2p_merge_ies - Merge muitiple p2p ies into one |
| * @in_ie: Pointer of the first p2p ie |
| * @in_len: Total len of muiltiple p2p ies |
| * @merge_ie: Pointer of merged ie |
| * Returns: Length of merged p2p ie |
| */ |
| int rtw_p2p_merge_ies(u8 *in_ie, u32 in_len, u8 *merge_ie) |
| { |
| PNDIS_802_11_VARIABLE_IEs pIE; |
| u8 len = 0; |
| u8 OUI[4] = { 0x50, 0x6f, 0x9a, 0x09 }; |
| u8 ELOUI[6] = { 0xDD, 0x00, 0x50, 0x6f, 0x9a, 0x09 }; /* EID;Len;OUI, Len would copy at the end of function */ |
| int i = 0; |
| |
| if (merge_ie != NULL) { |
| /* Set first P2P OUI */ |
| _rtw_memcpy(merge_ie, ELOUI, 6); |
| merge_ie += 6; |
| |
| while (i < in_len) { |
| pIE = (PNDIS_802_11_VARIABLE_IEs)(in_ie + i); |
| |
| /* Take out the rest of P2P OUIs */ |
| if (pIE->ElementID == _VENDOR_SPECIFIC_IE_ && _rtw_memcmp(pIE->data, OUI, 4)) { |
| _rtw_memcpy(merge_ie, pIE->data + 4, pIE->Length - 4); |
| len += pIE->Length - 4; |
| merge_ie += pIE->Length - 4; |
| } |
| |
| i += (pIE->Length + 2); |
| } |
| |
| return len + 4; /* 4 is for P2P OUI */ |
| |
| } |
| |
| return 0; |
| } |
| |
| void dump_p2p_ie(void *sel, 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 + 3 <= ie_len) { |
| id = *pos; |
| len = RTW_GET_LE16(pos + 1); |
| |
| RTW_PRINT_SEL(sel, "%s ID:%u, LEN:%u%s\n", __func__, id, len |
| , ((pos - ie + 3 + len) <= ie_len) ? "" : "(exceed ie_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; |
| u8 *p2p_ie_ptr = NULL; |
| u8 eid, p2p_oui[4] = {0x50, 0x6F, 0x9A, 0x09}; |
| |
| if (p2p_ielen) |
| *p2p_ielen = 0; |
| |
| if (!in_ie || in_len < 0) { |
| rtw_warn_on(1); |
| return p2p_ie_ptr; |
| } |
| |
| if (in_len <= 0) |
| return p2p_ie_ptr; |
| |
| cnt = 0; |
| |
| while (cnt + 1 + 4 < in_len) { |
| eid = in_ie[cnt]; |
| |
| if (cnt + 1 + 4 >= MAX_IE_SZ) { |
| rtw_warn_on(1); |
| return NULL; |
| } |
| |
| if (eid == WLAN_EID_VENDOR_SPECIFIC && _rtw_memcmp(&in_ie[cnt + 2], p2p_oui, 4) == _TRUE) { |
| p2p_ie_ptr = in_ie + cnt; |
| |
| if (p2p_ie) |
| _rtw_memcpy(p2p_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| if (p2p_ielen) |
| *p2p_ielen = in_ie[cnt + 1] + 2; |
| |
| break; |
| } else |
| cnt += in_ie[cnt + 1] + 2; |
| |
| } |
| |
| return p2p_ie_ptr; |
| } |
| |
| /** |
| * 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_ielen <= 6 |
| || (p2p_ie[0] != WLAN_EID_VENDOR_SPECIFIC) |
| || (_rtw_memcmp(p2p_ie + 2, p2p_oui, 4) != _TRUE)) |
| 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 + 3) <= p2p_ielen) { |
| /* 3 = 1(Attribute ID) + 2(Length) */ |
| u8 attr_id = *attr_ptr; |
| u16 attr_data_len = RTW_GET_LE16(attr_ptr + 1); |
| u16 attr_len = attr_data_len + 3; |
| |
| if (0) |
| RTW_INFO("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); |
| |
| if ((attr_ptr - p2p_ie + attr_len) > p2p_ielen) |
| break; |
| |
| if (attr_id == target_attr_id) { |
| target_attr_ptr = attr_ptr; |
| |
| if (buf_attr) |
| _rtw_memcpy(buf_attr, attr_ptr, attr_len); |
| |
| if (len_attr) |
| *len_attr = attr_len; |
| |
| break; |
| } else |
| attr_ptr += attr_len; |
| } |
| |
| 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) |
| _rtw_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) |
| _rtw_memcpy(pbuf + 3, pdata_attr, attr_len); |
| |
| a_len = attr_len + 3; |
| |
| return a_len; |
| } |
| |
| uint rtw_del_p2p_ie(u8 *ies, uint ies_len_ori, const char *msg) |
| { |
| #define DBG_DEL_P2P_IE 0 |
| |
| u8 *target_ie; |
| u32 target_ie_len; |
| uint ies_len = ies_len_ori; |
| int index = 0; |
| |
| while (1) { |
| target_ie = rtw_get_p2p_ie(ies, ies_len, NULL, &target_ie_len); |
| if (target_ie && target_ie_len) { |
| u8 *next_ie = target_ie + target_ie_len; |
| uint remain_len = ies_len - (next_ie - ies); |
| |
| if (DBG_DEL_P2P_IE && msg) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ies, ies_len); |
| |
| RTW_INFO("ies:%p, ies_len:%u\n", ies, ies_len); |
| RTW_INFO("target_ie:%p, target_ie_len:%u\n", target_ie, target_ie_len); |
| RTW_INFO("next_ie:%p, remain_len:%u\n", next_ie, remain_len); |
| } |
| |
| _rtw_memmove(target_ie, next_ie, remain_len); |
| _rtw_memset(target_ie + remain_len, 0, target_ie_len); |
| ies_len -= target_ie_len; |
| |
| if (DBG_DEL_P2P_IE && msg) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ies, ies_len); |
| } |
| |
| index++; |
| } else |
| break; |
| } |
| |
| return ies_len; |
| } |
| |
| uint rtw_del_p2p_attr(u8 *ie, uint ielen_ori, u8 attr_id) |
| { |
| #define DBG_DEL_P2P_ATTR 0 |
| |
| u8 *target_attr; |
| u32 target_attr_len; |
| uint ielen = ielen_ori; |
| int index = 0; |
| |
| 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); |
| |
| if (DBG_DEL_P2P_ATTR) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ie, ielen); |
| |
| RTW_INFO("ie:%p, ielen:%u\n", ie, ielen); |
| RTW_INFO("target_attr:%p, target_attr_len:%u\n", target_attr, target_attr_len); |
| RTW_INFO("next_attr:%p, remain_len:%u\n", next_attr, remain_len); |
| } |
| |
| _rtw_memmove(target_attr, next_attr, remain_len); |
| _rtw_memset(target_attr + remain_len, 0, target_attr_len); |
| *(ie + 1) -= target_attr_len; |
| ielen -= target_attr_len; |
| |
| if (DBG_DEL_P2P_ATTR) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ie, ielen); |
| } |
| |
| index++; |
| } else |
| break; |
| } |
| |
| return ielen; |
| } |
| |
| inline u8 *rtw_bss_ex_get_p2p_ie(WLAN_BSSID_EX *bss_ex, u8 *p2p_ie, uint *p2p_ielen) |
| { |
| return rtw_get_p2p_ie(BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex), p2p_ie, p2p_ielen); |
| } |
| |
| void rtw_bss_ex_del_p2p_ie(WLAN_BSSID_EX *bss_ex) |
| { |
| #define DBG_BSS_EX_DEL_P2P_IE 0 |
| |
| u8 *ies = BSS_EX_TLV_IES(bss_ex); |
| uint ies_len_ori = BSS_EX_TLV_IES_LEN(bss_ex); |
| uint ies_len; |
| |
| ies_len = rtw_del_p2p_ie(ies, ies_len_ori, DBG_BSS_EX_DEL_P2P_IE ? __func__ : NULL); |
| bss_ex->IELength -= ies_len_ori - ies_len; |
| } |
| |
| void rtw_bss_ex_del_p2p_attr(WLAN_BSSID_EX *bss_ex, u8 attr_id) |
| { |
| #define DBG_BSS_EX_DEL_P2P_ATTR 0 |
| |
| u8 *ies = BSS_EX_TLV_IES(bss_ex); |
| uint ies_len = BSS_EX_TLV_IES_LEN(bss_ex); |
| |
| u8 *ie; |
| uint ie_len, ie_len_ori; |
| |
| int index = 0; |
| |
| while (1) { |
| ie = rtw_get_p2p_ie(ies, ies_len, NULL, &ie_len_ori); |
| if (ie) { |
| u8 *next_ie_ori = ie + ie_len_ori; |
| uint remain_len = bss_ex->IELength - (next_ie_ori - bss_ex->IEs); |
| u8 has_target_attr = 0; |
| |
| if (DBG_BSS_EX_DEL_P2P_ATTR) { |
| if (rtw_get_p2p_attr(ie, ie_len_ori, attr_id, NULL, NULL)) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex)); |
| |
| RTW_INFO("ies:%p, ies_len:%u\n", ies, ies_len); |
| RTW_INFO("ie:%p, ie_len_ori:%u\n", ie, ie_len_ori); |
| RTW_INFO("next_ie_ori:%p, remain_len:%u\n", next_ie_ori, remain_len); |
| has_target_attr = 1; |
| } |
| } |
| |
| ie_len = rtw_del_p2p_attr(ie, ie_len_ori, attr_id); |
| if (ie_len != ie_len_ori) { |
| u8 *next_ie = ie + ie_len; |
| |
| _rtw_memmove(next_ie, next_ie_ori, remain_len); |
| _rtw_memset(next_ie + remain_len, 0, ie_len_ori - ie_len); |
| bss_ex->IELength -= ie_len_ori - ie_len; |
| |
| ies = next_ie; |
| } else |
| ies = next_ie_ori; |
| |
| if (DBG_BSS_EX_DEL_P2P_ATTR) { |
| if (has_target_attr) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex)); |
| } |
| } |
| |
| ies_len = remain_len; |
| |
| index++; |
| } else |
| break; |
| } |
| } |
| |
| void dump_wfd_ie(void *sel, u8 *ie, u32 ie_len) |
| { |
| u8 *pos = (u8 *)ie; |
| u8 id; |
| u16 len; |
| |
| u8 *wfd_ie; |
| uint wfd_ielen; |
| |
| wfd_ie = rtw_get_wfd_ie(ie, ie_len, NULL, &wfd_ielen); |
| if (wfd_ie != ie || wfd_ielen == 0) |
| return; |
| |
| pos += 6; |
| while (pos - ie + 3 <= ie_len) { |
| id = *pos; |
| len = RTW_GET_BE16(pos + 1); |
| |
| RTW_PRINT_SEL(sel, "%s ID:%u, LEN:%u%s\n", __func__, id, len |
| , ((pos - ie + 3 + len) <= ie_len) ? "" : "(exceed ie_len)"); |
| |
| pos += (3 + len); |
| } |
| } |
| |
| /** |
| * rtw_get_wfd_ie - Search WFD IE from a series of IEs |
| * @in_ie: Address of IEs to search |
| * @in_len: Length limit from in_ie |
| * @wfd_ie: If not NULL and WFD IE is found, WFD IE will be copied to the buf starting from wfd_ie |
| * @wfd_ielen: If not NULL and WFD IE is found, will set to the length of the entire WFD IE |
| * |
| * Returns: The address of the P2P IE found, or NULL |
| */ |
| u8 *rtw_get_wfd_ie(u8 *in_ie, int in_len, u8 *wfd_ie, uint *wfd_ielen) |
| { |
| uint cnt; |
| u8 *wfd_ie_ptr = NULL; |
| u8 eid, wfd_oui[4] = {0x50, 0x6F, 0x9A, 0x0A}; |
| |
| if (wfd_ielen) |
| *wfd_ielen = 0; |
| |
| if (!in_ie || in_len < 0) { |
| rtw_warn_on(1); |
| return wfd_ie_ptr; |
| } |
| |
| if (in_len <= 0) |
| return wfd_ie_ptr; |
| |
| cnt = 0; |
| |
| while (cnt + 1 + 4 < in_len) { |
| eid = in_ie[cnt]; |
| |
| if (cnt + 1 + 4 >= MAX_IE_SZ) { |
| rtw_warn_on(1); |
| return NULL; |
| } |
| |
| if (eid == WLAN_EID_VENDOR_SPECIFIC && _rtw_memcmp(&in_ie[cnt + 2], wfd_oui, 4) == _TRUE) { |
| wfd_ie_ptr = in_ie + cnt; |
| |
| if (wfd_ie) |
| _rtw_memcpy(wfd_ie, &in_ie[cnt], in_ie[cnt + 1] + 2); |
| |
| if (wfd_ielen) |
| *wfd_ielen = in_ie[cnt + 1] + 2; |
| |
| break; |
| } else |
| cnt += in_ie[cnt + 1] + 2; |
| |
| } |
| |
| return wfd_ie_ptr; |
| } |
| |
| /** |
| * rtw_get_wfd_attr - Search a specific WFD attribute from a given WFD IE |
| * @wfd_ie: Address of WFD IE to search |
| * @wfd_ielen: Length limit from wfd_ie |
| * @target_attr_id: The attribute ID of WFD attribute to search |
| * @buf_attr: If not NULL and the WFD attribute is found, WFD attribute will be copied to the buf starting from buf_attr |
| * @len_attr: If not NULL and the WFD attribute is found, will set to the length of the entire WFD attribute |
| * |
| * Returns: the address of the specific WPS attribute found, or NULL |
| */ |
| u8 *rtw_get_wfd_attr(u8 *wfd_ie, uint wfd_ielen, u8 target_attr_id, u8 *buf_attr, u32 *len_attr) |
| { |
| u8 *attr_ptr = NULL; |
| u8 *target_attr_ptr = NULL; |
| u8 wfd_oui[4] = {0x50, 0x6F, 0x9A, 0x0A}; |
| |
| if (len_attr) |
| *len_attr = 0; |
| |
| if (!wfd_ie |
| || wfd_ielen <= 6 |
| || (wfd_ie[0] != WLAN_EID_VENDOR_SPECIFIC) |
| || (_rtw_memcmp(wfd_ie + 2, wfd_oui, 4) != _TRUE)) |
| return attr_ptr; |
| |
| /* 6 = 1(Element ID) + 1(Length) + 3 (OUI) + 1(OUI Type) */ |
| attr_ptr = wfd_ie + 6; /* goto first attr */ |
| |
| while ((attr_ptr - wfd_ie + 3) <= wfd_ielen) { |
| /* 3 = 1(Attribute ID) + 2(Length) */ |
| u8 attr_id = *attr_ptr; |
| u16 attr_data_len = RTW_GET_BE16(attr_ptr + 1); |
| u16 attr_len = attr_data_len + 3; |
| |
| if (0) |
| RTW_INFO("%s attr_ptr:%p, id:%u, length:%u\n", __func__, attr_ptr, attr_id, attr_data_len); |
| |
| if ((attr_ptr - wfd_ie + attr_len) > wfd_ielen) |
| break; |
| |
| if (attr_id == target_attr_id) { |
| target_attr_ptr = attr_ptr; |
| |
| if (buf_attr) |
| _rtw_memcpy(buf_attr, attr_ptr, attr_len); |
| |
| if (len_attr) |
| *len_attr = attr_len; |
| |
| break; |
| } else |
| attr_ptr += attr_len; |
| } |
| |
| return target_attr_ptr; |
| } |
| |
| /** |
| * rtw_get_wfd_attr_content - Search a specific WFD attribute content from a given WFD IE |
| * @wfd_ie: Address of WFD IE to search |
| * @wfd_ielen: Length limit from wfd_ie |
| * @target_attr_id: The attribute ID of WFD attribute to search |
| * @buf_content: If not NULL and the WFD attribute is found, WFD attribute content will be copied to the buf starting from buf_content |
| * @len_content: If not NULL and the WFD attribute is found, will set to the length of the WFD attribute content |
| * |
| * Returns: the address of the specific WFD attribute content found, or NULL |
| */ |
| u8 *rtw_get_wfd_attr_content(u8 *wfd_ie, uint wfd_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_wfd_attr(wfd_ie, wfd_ielen, target_attr_id, NULL, &attr_len); |
| |
| if (attr_ptr && attr_len) { |
| if (buf_content) |
| _rtw_memcpy(buf_content, attr_ptr + 3, attr_len - 3); |
| |
| if (len_content) |
| *len_content = attr_len - 3; |
| |
| return attr_ptr + 3; |
| } |
| |
| return NULL; |
| } |
| |
| uint rtw_del_wfd_ie(u8 *ies, uint ies_len_ori, const char *msg) |
| { |
| #define DBG_DEL_WFD_IE 0 |
| |
| u8 *target_ie; |
| u32 target_ie_len; |
| uint ies_len = ies_len_ori; |
| int index = 0; |
| |
| while (1) { |
| target_ie = rtw_get_wfd_ie(ies, ies_len, NULL, &target_ie_len); |
| if (target_ie && target_ie_len) { |
| u8 *next_ie = target_ie + target_ie_len; |
| uint remain_len = ies_len - (next_ie - ies); |
| |
| if (DBG_DEL_WFD_IE && msg) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ies, ies_len); |
| |
| RTW_INFO("ies:%p, ies_len:%u\n", ies, ies_len); |
| RTW_INFO("target_ie:%p, target_ie_len:%u\n", target_ie, target_ie_len); |
| RTW_INFO("next_ie:%p, remain_len:%u\n", next_ie, remain_len); |
| } |
| |
| _rtw_memmove(target_ie, next_ie, remain_len); |
| _rtw_memset(target_ie + remain_len, 0, target_ie_len); |
| ies_len -= target_ie_len; |
| |
| if (DBG_DEL_WFD_IE && msg) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ies, ies_len); |
| } |
| |
| index++; |
| } else |
| break; |
| } |
| |
| return ies_len; |
| } |
| |
| uint rtw_del_wfd_attr(u8 *ie, uint ielen_ori, u8 attr_id) |
| { |
| #define DBG_DEL_WFD_ATTR 0 |
| |
| u8 *target_attr; |
| u32 target_attr_len; |
| uint ielen = ielen_ori; |
| int index = 0; |
| |
| while (1) { |
| target_attr = rtw_get_wfd_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); |
| |
| if (DBG_DEL_WFD_ATTR) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ie, ielen); |
| |
| RTW_INFO("ie:%p, ielen:%u\n", ie, ielen); |
| RTW_INFO("target_attr:%p, target_attr_len:%u\n", target_attr, target_attr_len); |
| RTW_INFO("next_attr:%p, remain_len:%u\n", next_attr, remain_len); |
| } |
| |
| _rtw_memmove(target_attr, next_attr, remain_len); |
| _rtw_memset(target_attr + remain_len, 0, target_attr_len); |
| *(ie + 1) -= target_attr_len; |
| ielen -= target_attr_len; |
| |
| if (DBG_DEL_WFD_ATTR) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, ie, ielen); |
| } |
| |
| index++; |
| } else |
| break; |
| } |
| |
| return ielen; |
| } |
| |
| inline u8 *rtw_bss_ex_get_wfd_ie(WLAN_BSSID_EX *bss_ex, u8 *wfd_ie, uint *wfd_ielen) |
| { |
| return rtw_get_wfd_ie(BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex), wfd_ie, wfd_ielen); |
| } |
| |
| void rtw_bss_ex_del_wfd_ie(WLAN_BSSID_EX *bss_ex) |
| { |
| #define DBG_BSS_EX_DEL_WFD_IE 0 |
| u8 *ies = BSS_EX_TLV_IES(bss_ex); |
| uint ies_len_ori = BSS_EX_TLV_IES_LEN(bss_ex); |
| uint ies_len; |
| |
| ies_len = rtw_del_wfd_ie(ies, ies_len_ori, DBG_BSS_EX_DEL_WFD_IE ? __func__ : NULL); |
| bss_ex->IELength -= ies_len_ori - ies_len; |
| } |
| |
| void rtw_bss_ex_del_wfd_attr(WLAN_BSSID_EX *bss_ex, u8 attr_id) |
| { |
| #define DBG_BSS_EX_DEL_WFD_ATTR 0 |
| |
| u8 *ies = BSS_EX_TLV_IES(bss_ex); |
| uint ies_len = BSS_EX_TLV_IES_LEN(bss_ex); |
| |
| u8 *ie; |
| uint ie_len, ie_len_ori; |
| |
| int index = 0; |
| |
| while (1) { |
| ie = rtw_get_wfd_ie(ies, ies_len, NULL, &ie_len_ori); |
| if (ie) { |
| u8 *next_ie_ori = ie + ie_len_ori; |
| uint remain_len = bss_ex->IELength - (next_ie_ori - bss_ex->IEs); |
| u8 has_target_attr = 0; |
| |
| if (DBG_BSS_EX_DEL_WFD_ATTR) { |
| if (rtw_get_wfd_attr(ie, ie_len_ori, attr_id, NULL, NULL)) { |
| RTW_INFO("%s %d before\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex)); |
| |
| RTW_INFO("ies:%p, ies_len:%u\n", ies, ies_len); |
| RTW_INFO("ie:%p, ie_len_ori:%u\n", ie, ie_len_ori); |
| RTW_INFO("next_ie_ori:%p, remain_len:%u\n", next_ie_ori, remain_len); |
| has_target_attr = 1; |
| } |
| } |
| |
| ie_len = rtw_del_wfd_attr(ie, ie_len_ori, attr_id); |
| if (ie_len != ie_len_ori) { |
| u8 *next_ie = ie + ie_len; |
| |
| _rtw_memmove(next_ie, next_ie_ori, remain_len); |
| _rtw_memset(next_ie + remain_len, 0, ie_len_ori - ie_len); |
| bss_ex->IELength -= ie_len_ori - ie_len; |
| |
| ies = next_ie; |
| } else |
| ies = next_ie_ori; |
| |
| if (DBG_BSS_EX_DEL_WFD_ATTR) { |
| if (has_target_attr) { |
| RTW_INFO("%s %d after\n", __func__, index); |
| dump_ies(RTW_DBGDUMP, BSS_EX_TLV_IES(bss_ex), BSS_EX_TLV_IES_LEN(bss_ex)); |
| } |
| } |
| |
| ies_len = remain_len; |
| |
| index++; |
| } else |
| break; |
| } |
| } |
| |
| /* 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; |
| } |
| |
| 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)) { |
| 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; |
| ret = _SUCCESS; |
| } |
| } else { |
| |
| pbuf = rtw_get_wpa2_ie(&pnetwork->network.IEs[12], &wpa_ielen, pnetwork->network.IELength - 12); |
| |
| if (pbuf && (wpa_ielen > 0)) { |
| if (_SUCCESS == rtw_parse_wpa2_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; |
| ret = _SUCCESS; |
| } |
| } |
| } |
| |
| return ret; |
| } |
| |
| void rtw_get_bcn_info(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 rtw_ieee80211_ht_cap *pht_cap = NULL; |
| unsigned int len; |
| unsigned char *p; |
| |
| _rtw_memcpy((u8 *)&cap, rtw_get_capability_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_ie(pnetwork->network.IEs , pnetwork->network.IELength, NULL, &rsn_len, NULL, &wpa_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; |
| } |
| 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 = 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; |
| } |
| |
| u8 rtw_ht_mcsset_to_nss(u8 *supp_mcs_set) |
| { |
| u8 nss = 1; |
| |
| if (supp_mcs_set[3]) |
| nss = 4; |
| else if (supp_mcs_set[2]) |
| nss = 3; |
| else if (supp_mcs_set[1]) |
| nss = 2; |
| else if (supp_mcs_set[0]) |
| nss = 1; |
| else |
| RTW_INFO("%s,%d, warning! supp_mcs_set is zero\n", __func__, __LINE__); |
| /* RTW_INFO("%s HT: %dSS\n", __FUNCTION__, nss); */ |
| return nss; |
| } |
| |
| u32 rtw_ht_mcs_set_to_bitmap(u8 *mcs_set, u8 nss) |
| { |
| u8 i; |
| u32 bitmap = 0; |
| |
| for (i = 0; i < nss; i++) |
| bitmap |= mcs_set[i] << (i * 8); |
| |
| RTW_INFO("ht_mcs_set=%02x %02x %02x %02x, nss=%u, bitmap=%08x\n" |
| , mcs_set[0], mcs_set[1], mcs_set[2], mcs_set[3], nss, bitmap); |
| |
| return bitmap; |
| } |
| |
| /* show MCS rate, unit: 100Kbps */ |
| u16 rtw_mcs_rate(u8 rf_type, u8 bw_40MHz, u8 short_GI, unsigned char *MCS_rate) |
| { |
| u16 max_rate = 0; |
| |
| if (MCS_rate[3]) { |
| if (MCS_rate[3] & BIT(7)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 6000 : 5400) : ((short_GI) ? 2889 : 2600); |
| else if (MCS_rate[3] & BIT(6)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 5400 : 4860) : ((short_GI) ? 2600 : 2340); |
| else if (MCS_rate[3] & BIT(5)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 4800 : 4320) : ((short_GI) ? 2311 : 2080); |
| else if (MCS_rate[3] & BIT(4)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 3600 : 3240) : ((short_GI) ? 1733 : 1560); |
| else if (MCS_rate[3] & BIT(3)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 2400 : 2160) : ((short_GI) ? 1156 : 1040); |
| else if (MCS_rate[3] & BIT(2)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1800 : 1620) : ((short_GI) ? 867 : 780); |
| else if (MCS_rate[3] & BIT(1)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1200 : 1080) : ((short_GI) ? 578 : 520); |
| else if (MCS_rate[3] & BIT(0)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 600 : 540) : ((short_GI) ? 289 : 260); |
| } else if (MCS_rate[2]) { |
| if (MCS_rate[2] & BIT(7)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 4500 : 4050) : ((short_GI) ? 2167 : 1950); |
| else if (MCS_rate[2] & BIT(6)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 4050 : 3645) : ((short_GI) ? 1950 : 1750); |
| else if (MCS_rate[2] & BIT(5)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 3600 : 3240) : ((short_GI) ? 1733 : 1560); |
| else if (MCS_rate[2] & BIT(4)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 2700 : 2430) : ((short_GI) ? 1300 : 1170); |
| else if (MCS_rate[2] & BIT(3)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1800 : 1620) : ((short_GI) ? 867 : 780); |
| else if (MCS_rate[2] & BIT(2)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1350 : 1215) : ((short_GI) ? 650 : 585); |
| else if (MCS_rate[2] & BIT(1)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 900 : 810) : ((short_GI) ? 433 : 390); |
| else if (MCS_rate[2] & BIT(0)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 450 : 405) : ((short_GI) ? 217 : 195); |
| } else if (MCS_rate[1]) { |
| if (MCS_rate[1] & BIT(7)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 3000 : 2700) : ((short_GI) ? 1444 : 1300); |
| else if (MCS_rate[1] & BIT(6)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 2700 : 2430) : ((short_GI) ? 1300 : 1170); |
| else if (MCS_rate[1] & BIT(5)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 2400 : 2160) : ((short_GI) ? 1156 : 1040); |
| else if (MCS_rate[1] & BIT(4)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1800 : 1620) : ((short_GI) ? 867 : 780); |
| else if (MCS_rate[1] & BIT(3)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1200 : 1080) : ((short_GI) ? 578 : 520); |
| else if (MCS_rate[1] & BIT(2)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 900 : 810) : ((short_GI) ? 433 : 390); |
| else if (MCS_rate[1] & BIT(1)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 600 : 540) : ((short_GI) ? 289 : 260); |
| else if (MCS_rate[1] & BIT(0)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 300 : 270) : ((short_GI) ? 144 : 130); |
| } else { |
| if (MCS_rate[0] & BIT(7)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1500 : 1350) : ((short_GI) ? 722 : 650); |
| else if (MCS_rate[0] & BIT(6)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1350 : 1215) : ((short_GI) ? 650 : 585); |
| else if (MCS_rate[0] & BIT(5)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 1200 : 1080) : ((short_GI) ? 578 : 520); |
| else if (MCS_rate[0] & BIT(4)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 900 : 810) : ((short_GI) ? 433 : 390); |
| else if (MCS_rate[0] & BIT(3)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 600 : 540) : ((short_GI) ? 289 : 260); |
| else if (MCS_rate[0] & BIT(2)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 450 : 405) : ((short_GI) ? 217 : 195); |
| else if (MCS_rate[0] & BIT(1)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 300 : 270) : ((short_GI) ? 144 : 130); |
| else if (MCS_rate[0] & BIT(0)) |
| max_rate = (bw_40MHz) ? ((short_GI) ? 150 : 135) : ((short_GI) ? 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; |
| u8 a = ACT_PUBLIC_MAX; |
| |
| 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]; |
| } |
| |