104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt/* 204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * hostapd / IEEE 802.11ac VHT 304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * Copyright (c) 2002-2009, Jouni Malinen <j@w1.fi> 404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * 504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * This program is free software; you can redistribute it and/or modify 604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * it under the terms of BSD license 704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * 804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt * See README and COPYING for more details. 904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt */ 1004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 1104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "utils/includes.h" 1204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 1304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "utils/common.h" 1404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "common/ieee802_11_defs.h" 1504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "hostapd.h" 1604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "ap_config.h" 1704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "sta_info.h" 1804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "beacon.h" 1904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt#include "ieee802_11.h" 2004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 2104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 2204949598a23f501be6eec21697465fd46a28840aDmitry Shmidtu8 * hostapd_eid_vht_capabilities(struct hostapd_data *hapd, u8 *eid) 2304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 2404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt struct ieee80211_vht_capabilities *cap; 252f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt struct hostapd_hw_modes *mode = hapd->iface->current_mode; 2604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt u8 *pos = eid; 2704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 282f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (!mode) 2904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return eid; 3004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 312f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (mode->mode == HOSTAPD_MODE_IEEE80211G && hapd->conf->vendor_vht && 322f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt mode->vht_capab == 0 && hapd->iface->hw_features) { 332f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt int i; 342f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 352f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt for (i = 0; i < hapd->iface->num_hw_features; i++) { 362f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (hapd->iface->hw_features[i].mode == 372f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt HOSTAPD_MODE_IEEE80211A) { 382f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt mode = &hapd->iface->hw_features[i]; 392f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt break; 402f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt } 412f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt } 422f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt } 432f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 4404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *pos++ = WLAN_EID_VHT_CAP; 4504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *pos++ = sizeof(*cap); 4604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 4704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt cap = (struct ieee80211_vht_capabilities *) pos; 4804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_memset(cap, 0, sizeof(*cap)); 4904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt cap->vht_capabilities_info = host_to_le32( 50292b0c3a742226c295f8db76eaef9e90c90e7513Dmitry Shmidt hapd->iface->conf->vht_capab); 5104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 5204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt /* Supported MCS set comes from hw */ 532f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt os_memcpy(&cap->vht_supported_mcs_set, mode->vht_mcs_set, 8); 5404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 5504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt pos += sizeof(*cap); 5604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 5704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return pos; 5804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 5904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 6004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 6104949598a23f501be6eec21697465fd46a28840aDmitry Shmidtu8 * hostapd_eid_vht_operation(struct hostapd_data *hapd, u8 *eid) 6204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt{ 6304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt struct ieee80211_vht_operation *oper; 6404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt u8 *pos = eid; 6504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 6604949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *pos++ = WLAN_EID_VHT_OPERATION; 6704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt *pos++ = sizeof(*oper); 6804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 6904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt oper = (struct ieee80211_vht_operation *) pos; 7004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt os_memset(oper, 0, sizeof(*oper)); 7104949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 7261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt /* 7361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * center freq = 5 GHz + (5 * index) 7461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * So index 42 gives center freq 5.210 GHz 7561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt * which is channel 42 in 5G band 7661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt */ 7761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt oper->vht_op_info_chan_center_freq_seg0_idx = 7861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt hapd->iconf->vht_oper_centr_freq_seg0_idx; 79d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt oper->vht_op_info_chan_center_freq_seg1_idx = 80d5e4923d04122f81300fa68fb07d64ede28fd44dDmitry Shmidt hapd->iconf->vht_oper_centr_freq_seg1_idx; 8161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 8204949598a23f501be6eec21697465fd46a28840aDmitry Shmidt oper->vht_op_info_chwidth = hapd->iconf->vht_oper_chwidth; 8304949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 8404949598a23f501be6eec21697465fd46a28840aDmitry Shmidt /* VHT Basic MCS set comes from hw */ 8504949598a23f501be6eec21697465fd46a28840aDmitry Shmidt /* Hard code 1 stream, MCS0-7 is a min Basic VHT MCS rates */ 8661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt oper->vht_basic_mcs_set = host_to_le16(0xfffc); 8704949598a23f501be6eec21697465fd46a28840aDmitry Shmidt pos += sizeof(*oper); 8804949598a23f501be6eec21697465fd46a28840aDmitry Shmidt 8904949598a23f501be6eec21697465fd46a28840aDmitry Shmidt return pos; 9004949598a23f501be6eec21697465fd46a28840aDmitry Shmidt} 9161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 9261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 93203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidtstatic int check_valid_vht_mcs(struct hostapd_hw_modes *mode, 94203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt const u8 *sta_vht_capab) 95203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt{ 96203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt const struct ieee80211_vht_capabilities *vht_cap; 97203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt struct ieee80211_vht_capabilities ap_vht_cap; 98203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt u16 sta_rx_mcs_set, ap_tx_mcs_set; 99203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt int i; 100203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 101203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt if (!mode) 102203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt return 1; 103203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 104203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt /* 105203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt * Disable VHT caps for STAs for which there is not even a single 106203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt * allowed MCS in any supported number of streams, i.e., STA is 107203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt * advertising 3 (not supported) as VHT MCS rates for all supported 108203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt * stream cases. 109203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt */ 110203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt os_memcpy(&ap_vht_cap.vht_supported_mcs_set, mode->vht_mcs_set, 111203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt sizeof(ap_vht_cap.vht_supported_mcs_set)); 112203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt vht_cap = (const struct ieee80211_vht_capabilities *) sta_vht_capab; 113203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 114203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt /* AP Tx MCS map vs. STA Rx MCS map */ 115203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt sta_rx_mcs_set = le_to_host16(vht_cap->vht_supported_mcs_set.rx_map); 116203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt ap_tx_mcs_set = le_to_host16(ap_vht_cap.vht_supported_mcs_set.tx_map); 117203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 118203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt for (i = 0; i < VHT_RX_NSS_MAX_STREAMS; i++) { 119203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt if ((ap_tx_mcs_set & (0x3 << (i * 2))) == 3) 120203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt continue; 121203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 122203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt if ((sta_rx_mcs_set & (0x3 << (i * 2))) == 3) 123203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt continue; 124203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 125203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt return 1; 126203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt } 127203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 128203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt wpa_printf(MSG_DEBUG, 129203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt "No matching VHT MCS found between AP TX and STA RX"); 130203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt return 0; 131203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt} 132203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 133203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt 13461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidtu16 copy_sta_vht_capab(struct hostapd_data *hapd, struct sta_info *sta, 1359d9e60286e05ae45025b672636490bd12586138dDmitry Shmidt const u8 *vht_capab) 13661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt{ 13761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt /* Disable VHT caps for STAs associated to no-VHT BSSes. */ 13861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (!vht_capab || 139203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt hapd->conf->disable_11ac || 140203eadb9eda41a1dde4a583edb4684319e3f399eDmitry Shmidt !check_valid_vht_mcs(hapd->iface->current_mode, vht_capab)) { 14161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sta->flags &= ~WLAN_STA_VHT; 14261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_free(sta->vht_capabilities); 14361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sta->vht_capabilities = NULL; 14461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return WLAN_STATUS_SUCCESS; 14561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 14661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 14761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (sta->vht_capabilities == NULL) { 14861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sta->vht_capabilities = 14961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_zalloc(sizeof(struct ieee80211_vht_capabilities)); 15061d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt if (sta->vht_capabilities == NULL) 15161d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 15261d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt } 15361d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 15461d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sta->flags |= WLAN_STA_VHT; 15561d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt os_memcpy(sta->vht_capabilities, vht_capab, 15661d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 15761d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt 15861d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt return WLAN_STATUS_SUCCESS; 15961d9df3e62aaa0e87ad05452fcb95142159a17b6Dmitry Shmidt} 160a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 161bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt 1622f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidtu16 copy_sta_vendor_vht(struct hostapd_data *hapd, struct sta_info *sta, 1632f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt const u8 *ie, size_t len) 1642f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt{ 1652f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt const u8 *vht_capab; 1662f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt unsigned int vht_capab_len; 1672f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1682f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (!ie || len < 5 + 2 + sizeof(struct ieee80211_vht_capabilities) || 1692f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt hapd->conf->disable_11ac) 1702f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt goto no_capab; 1712f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1722f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt /* The VHT Capabilities element embedded in vendor VHT */ 1732f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt vht_capab = ie + 5; 1742f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (vht_capab[0] != WLAN_EID_VHT_CAP) 1752f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt goto no_capab; 1762f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt vht_capab_len = vht_capab[1]; 1772f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (vht_capab_len < sizeof(struct ieee80211_vht_capabilities) || 1782f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt (int) vht_capab_len > ie + len - vht_capab - 2) 1792f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt goto no_capab; 1802f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt vht_capab += 2; 1812f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1822f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (sta->vht_capabilities == NULL) { 1832f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt sta->vht_capabilities = 1842f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt os_zalloc(sizeof(struct ieee80211_vht_capabilities)); 1852f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (sta->vht_capabilities == NULL) 1862f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt return WLAN_STATUS_UNSPECIFIED_FAILURE; 1872f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt } 1882f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1892f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt sta->flags |= WLAN_STA_VHT | WLAN_STA_VENDOR_VHT; 1902f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt os_memcpy(sta->vht_capabilities, vht_capab, 1912f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt sizeof(struct ieee80211_vht_capabilities)); 1922f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt return WLAN_STATUS_SUCCESS; 1932f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1942f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidtno_capab: 1952f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt sta->flags &= ~WLAN_STA_VENDOR_VHT; 1962f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt return WLAN_STATUS_SUCCESS; 1972f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt} 1982f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 1992f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2002f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidtu8 * hostapd_eid_vendor_vht(struct hostapd_data *hapd, u8 *eid) 2012f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt{ 2022f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt u8 *pos = eid; 2032f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2042f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt if (!hapd->iface->current_mode) 2052f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt return eid; 2062f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2072f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt *pos++ = WLAN_EID_VENDOR_SPECIFIC; 2082f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt *pos++ = (5 + /* The Vendor OUI, type and subtype */ 2092f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2 + sizeof(struct ieee80211_vht_capabilities) + 2102f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2 + sizeof(struct ieee80211_vht_operation)); 2112f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2122f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt WPA_PUT_BE32(pos, (OUI_BROADCOM << 8) | VENDOR_VHT_TYPE); 2132f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt pos += 4; 2142f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt *pos++ = VENDOR_VHT_SUBTYPE; 2152f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt pos = hostapd_eid_vht_capabilities(hapd, pos); 2162f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt pos = hostapd_eid_vht_operation(hapd, pos); 2172f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2182f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt return pos; 2192f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt} 2202f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 2212f74e36e84064ffa32f82f3decf36b653c7e4fadDmitry Shmidt 222bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidtu16 set_sta_vht_opmode(struct hostapd_data *hapd, struct sta_info *sta, 223bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt const u8 *vht_oper_notif) 224bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt{ 225bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt if (!vht_oper_notif) { 226bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt sta->flags &= ~WLAN_STA_VHT_OPMODE_ENABLED; 227bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt return WLAN_STATUS_SUCCESS; 228bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt } 229bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt 230bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt sta->flags |= WLAN_STA_VHT_OPMODE_ENABLED; 231bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt sta->vht_opmode = *vht_oper_notif; 232bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt return WLAN_STATUS_SUCCESS; 233bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt} 234bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt 235bd14a57187b024f49f5b9ace55ef457d8d04650aDmitry Shmidt 236a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidtvoid hostapd_get_vht_capab(struct hostapd_data *hapd, 237a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct ieee80211_vht_capabilities *vht_cap, 238a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt struct ieee80211_vht_capabilities *neg_vht_cap) 239a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt{ 24068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt u32 cap, own_cap, sym_caps; 24168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 242a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt if (vht_cap == NULL) 243a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt return; 244a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt os_memcpy(neg_vht_cap, vht_cap, sizeof(*neg_vht_cap)); 245a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt 24668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap = le_to_host32(neg_vht_cap->vht_capabilities_info); 24768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt own_cap = hapd->iconf->vht_capab; 24868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 24968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt /* mask out symmetric VHT capabilities we don't support */ 25068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt sym_caps = VHT_CAP_SHORT_GI_80 | VHT_CAP_SHORT_GI_160; 25168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~sym_caps | (own_cap & sym_caps); 25268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 25368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt /* mask out beamformer/beamformee caps if not supported */ 25468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_SU_BEAMFORMER_CAPABLE)) 25568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~(VHT_CAP_SU_BEAMFORMEE_CAPABLE | 25668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt VHT_CAP_BEAMFORMEE_STS_MAX); 25768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 25868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_SU_BEAMFORMEE_CAPABLE)) 25968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~(VHT_CAP_SU_BEAMFORMER_CAPABLE | 26068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt VHT_CAP_SOUNDING_DIMENSION_MAX); 26168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 26268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_MU_BEAMFORMER_CAPABLE)) 26368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_MU_BEAMFORMEE_CAPABLE; 26468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 26568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_MU_BEAMFORMEE_CAPABLE)) 26668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_MU_BEAMFORMER_CAPABLE; 26768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 26868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt /* mask channel widths we don't support */ 26968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt switch (own_cap & VHT_CAP_SUPP_CHAN_WIDTH_MASK) { 27068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt case VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ: 27168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt break; 27268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt case VHT_CAP_SUPP_CHAN_WIDTH_160MHZ: 27368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (cap & VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ) { 27468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_SUPP_CHAN_WIDTH_160_80PLUS80MHZ; 27568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap |= VHT_CAP_SUPP_CHAN_WIDTH_160MHZ; 27668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt } 27768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt break; 27868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt default: 27968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_SUPP_CHAN_WIDTH_MASK; 28068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt break; 28168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt } 28268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 28368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(cap & VHT_CAP_SUPP_CHAN_WIDTH_MASK)) 28468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_SHORT_GI_160; 28568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 28668d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt /* 28768d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt * if we don't support RX STBC, mask out TX STBC in the STA's HT caps 28868d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt * if we don't support TX STBC, mask out RX STBC in the STA's HT caps 28968d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt */ 29068d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_RXSTBC_MASK)) 29168d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_TXSTBC; 29268d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt if (!(own_cap & VHT_CAP_TXSTBC)) 29368d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt cap &= ~VHT_CAP_RXSTBC_MASK; 29468d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt 29568d0e3ed07847339aedfac8e02f50db68c702e52Dmitry Shmidt neg_vht_cap->vht_capabilities_info = host_to_le32(cap); 296a54fa5fb807eaeff45464139b5a7759f060cec68Dmitry Shmidt} 297