diff options
Diffstat (limited to 'drivers/staging/r8188eu/core/rtw_ap.c')
| -rw-r--r-- | drivers/staging/r8188eu/core/rtw_ap.c | 1181 |
1 files changed, 0 insertions, 1181 deletions
diff --git a/drivers/staging/r8188eu/core/rtw_ap.c b/drivers/staging/r8188eu/core/rtw_ap.c deleted file mode 100644 index e0ca4b6e17cc..000000000000 --- a/drivers/staging/r8188eu/core/rtw_ap.c +++ /dev/null @@ -1,1181 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* Copyright(c) 2007 - 2012 Realtek Corporation. */ - -#define _RTW_AP_C_ - -#include "../include/osdep_service.h" -#include "../include/drv_types.h" -#include "../include/wifi.h" -#include "../include/ieee80211.h" -#include "../include/rtl8188e_cmd.h" - -void init_mlme_ap_info(struct adapter *padapter) -{ - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct sta_priv *pstapriv = &padapter->stapriv; - struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; - - spin_lock_init(&pmlmepriv->bcn_update_lock); - - /* for ACL */ - rtw_init_queue(&pacl_list->acl_node_q); - - start_ap_mode(padapter); -} - -void free_mlme_ap_info(struct adapter *padapter) -{ - struct sta_info *psta = NULL; - struct sta_priv *pstapriv = &padapter->stapriv; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; - - pmlmepriv->update_bcn = false; - pmlmeext->bstart_bss = false; - - rtw_sta_flush(padapter); - - pmlmeinfo->state = _HW_STATE_NOLINK_; - - /* free_assoc_sta_resources */ - rtw_free_all_stainfo(padapter); - - /* free bc/mc sta_info */ - psta = rtw_get_bcmc_stainfo(padapter); - spin_lock_bh(&pstapriv->sta_hash_lock); - rtw_free_stainfo(padapter, psta); - spin_unlock_bh(&pstapriv->sta_hash_lock); -} - -static void update_BCNTIM(struct adapter *padapter) -{ - struct sta_priv *pstapriv = &padapter->stapriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; - struct wlan_bssid_ex *pnetwork_mlmeext = &pmlmeinfo->network; - unsigned char *pie = pnetwork_mlmeext->IEs; - u8 *p, *dst_ie, *premainder_ie = NULL; - u8 *pbackup_remainder_ie = NULL; - __le16 tim_bitmap_le; - uint offset, tmp_len, tim_ielen, tim_ie_offset, remainder_ielen; - - /* update TIM IE */ - - p = rtw_get_ie(pie + _FIXED_IE_LENGTH_, _TIM_IE_, &tim_ielen, - pnetwork_mlmeext->IELength - _FIXED_IE_LENGTH_); - if (p && tim_ielen > 0) { - tim_ielen += 2; - premainder_ie = p + tim_ielen; - tim_ie_offset = (int)(p - pie); - remainder_ielen = pnetwork_mlmeext->IELength - tim_ie_offset - tim_ielen; - /* append TIM IE from dst_ie offset */ - dst_ie = p; - } else { - tim_ielen = 0; - - /* calculate head_len */ - offset = _FIXED_IE_LENGTH_; - offset += pnetwork_mlmeext->Ssid.SsidLength + 2; - - /* get supported rates len */ - p = rtw_get_ie(pie + _BEACON_IE_OFFSET_, _SUPPORTEDRATES_IE_, - &tmp_len, (pnetwork_mlmeext->IELength - _BEACON_IE_OFFSET_)); - if (p) - offset += tmp_len + 2; - - /* DS Parameter Set IE, len = 3 */ - offset += 3; - - premainder_ie = pie + offset; - - remainder_ielen = pnetwork_mlmeext->IELength - offset - tim_ielen; - - /* append TIM IE from offset */ - dst_ie = pie + offset; - } - - if (remainder_ielen > 0) { - pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_ATOMIC); - if (pbackup_remainder_ie && premainder_ie) - memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen); - } - *dst_ie++ = _TIM_IE_; - - if ((pstapriv->tim_bitmap & 0xff00) && (pstapriv->tim_bitmap & 0x00fc)) - tim_ielen = 5; - else - tim_ielen = 4; - - *dst_ie++ = tim_ielen; - - *dst_ie++ = 0;/* DTIM count */ - *dst_ie++ = 1;/* DTIM period */ - - if (pstapriv->tim_bitmap & BIT(0))/* for bc/mc frames */ - *dst_ie++ = BIT(0);/* bitmap ctrl */ - else - *dst_ie++ = 0; - - tim_bitmap_le = cpu_to_le16(pstapriv->tim_bitmap); - - if (tim_ielen == 4) { - *dst_ie++ = *(u8 *)&tim_bitmap_le; - } else if (tim_ielen == 5) { - memcpy(dst_ie, &tim_bitmap_le, 2); - dst_ie += 2; - } - - /* copy remainder IE */ - if (pbackup_remainder_ie) { - memcpy(dst_ie, pbackup_remainder_ie, remainder_ielen); - - kfree(pbackup_remainder_ie); - } - offset = (uint)(dst_ie - pie); - pnetwork_mlmeext->IELength = offset + remainder_ielen; - - set_tx_beacon_cmd(padapter); -} - -static u8 chk_sta_is_alive(struct sta_info *psta) -{ - u8 ret = false; - - if ((psta->sta_stats.last_rx_data_pkts + psta->sta_stats.last_rx_ctrl_pkts) == - (psta->sta_stats.rx_data_pkts + psta->sta_stats.rx_ctrl_pkts)) - ; - else - ret = true; - - sta_update_last_rx_pkts(psta); - - return ret; -} - -void expire_timeout_chk(struct adapter *padapter) -{ - struct list_head *phead, *plist; - u8 updated = 0; - struct sta_info *psta = NULL; - struct sta_priv *pstapriv = &padapter->stapriv; - u8 chk_alive_num = 0; - char chk_alive_list[NUM_STA]; - int i; - - spin_lock_bh(&pstapriv->auth_list_lock); - - phead = &pstapriv->auth_list; - plist = phead->next; - - /* check auth_queue */ - while (phead != plist) { - psta = container_of(plist, struct sta_info, auth_list); - plist = plist->next; - - if (psta->expire_to > 0) { - psta->expire_to--; - if (psta->expire_to == 0) { - list_del_init(&psta->auth_list); - pstapriv->auth_list_cnt--; - - spin_unlock_bh(&pstapriv->auth_list_lock); - - spin_lock_bh(&pstapriv->sta_hash_lock); - rtw_free_stainfo(padapter, psta); - spin_unlock_bh(&pstapriv->sta_hash_lock); - - spin_lock_bh(&pstapriv->auth_list_lock); - } - } - } - spin_unlock_bh(&pstapriv->auth_list_lock); - - psta = NULL; - - spin_lock_bh(&pstapriv->asoc_list_lock); - - phead = &pstapriv->asoc_list; - plist = phead->next; - - /* check asoc_queue */ - while (phead != plist) { - psta = container_of(plist, struct sta_info, asoc_list); - plist = plist->next; - - if (chk_sta_is_alive(psta) || !psta->expire_to) { - psta->expire_to = pstapriv->expire_to; - psta->keep_alive_trycnt = 0; - psta->under_exist_checking = 0; - } else { - psta->expire_to--; - } - - if (psta->expire_to <= 0) { - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - - if (padapter->registrypriv.wifi_spec == 1) { - psta->expire_to = pstapriv->expire_to; - continue; - } - - if (psta->state & WIFI_SLEEP_STATE) { - if (!(psta->state & WIFI_STA_ALIVE_CHK_STATE)) { - /* to check if alive by another methods if station is at ps mode. */ - psta->expire_to = pstapriv->expire_to; - psta->state |= WIFI_STA_ALIVE_CHK_STATE; - - /* to update bcn with tim_bitmap for this station */ - pstapriv->tim_bitmap |= BIT(psta->aid); - update_beacon(padapter, _TIM_IE_, NULL, false); - - if (!pmlmeext->active_keep_alive_check) - continue; - } - } - if (pmlmeext->active_keep_alive_check) { - int stainfo_offset; - - stainfo_offset = rtw_stainfo_offset(pstapriv, psta); - if (stainfo_offset_valid(stainfo_offset)) - chk_alive_list[chk_alive_num++] = stainfo_offset; - continue; - } - - list_del_init(&psta->asoc_list); - pstapriv->asoc_list_cnt--; - - updated = ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING); - } else { - /* TODO: Aging mechanism to digest frames in sleep_q to avoid running out of xmitframe */ - if (psta->sleepq_len > (NR_XMITFRAME / pstapriv->asoc_list_cnt) && - padapter->xmitpriv.free_xmitframe_cnt < (NR_XMITFRAME / pstapriv->asoc_list_cnt / 2)) { - wakeup_sta_to_xmit(padapter, psta); - } - } - } - - spin_unlock_bh(&pstapriv->asoc_list_lock); - - if (chk_alive_num) { - u8 backup_oper_channel = 0; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - /* switch to correct channel of current network before issue keep-alive frames */ - if (rtw_get_oper_ch(padapter) != pmlmeext->cur_channel) { - backup_oper_channel = rtw_get_oper_ch(padapter); - SelectChannel(padapter, pmlmeext->cur_channel); - } - - /* issue null data to check sta alive*/ - for (i = 0; i < chk_alive_num; i++) { - int ret = _FAIL; - - psta = rtw_get_stainfo_by_offset(pstapriv, chk_alive_list[i]); - - if (psta->state & WIFI_SLEEP_STATE) - ret = issue_nulldata(padapter, psta->hwaddr, 0, 1, 50); - else - ret = issue_nulldata(padapter, psta->hwaddr, 0, 3, 50); - - psta->keep_alive_trycnt++; - if (ret == _SUCCESS) { - psta->expire_to = pstapriv->expire_to; - psta->keep_alive_trycnt = 0; - continue; - } else if (psta->keep_alive_trycnt <= 3) { - psta->expire_to = 1; - continue; - } - - psta->keep_alive_trycnt = 0; - - spin_lock_bh(&pstapriv->asoc_list_lock); - list_del_init(&psta->asoc_list); - pstapriv->asoc_list_cnt--; - updated = ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING); - spin_unlock_bh(&pstapriv->asoc_list_lock); - } - - if (backup_oper_channel > 0) /* back to the original operation channel */ - SelectChannel(padapter, backup_oper_channel); - } - - associated_clients_update(padapter, updated); -} - -void add_RATid(struct adapter *padapter, struct sta_info *psta, u8 rssi_level) -{ - int i; - u32 init_rate = 0; - unsigned char sta_band = 0, raid, shortGIrate = false; - unsigned char limit; - unsigned int tx_ra_bitmap = 0; - struct ht_priv *psta_ht = NULL; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct wlan_bssid_ex *pcur_network = (struct wlan_bssid_ex *)&pmlmepriv->cur_network.network; - - if (psta) - psta_ht = &psta->htpriv; - else - return; - - if (!(psta->state & _FW_LINKED)) - return; - - /* b/g mode ra_bitmap */ - for (i = 0; i < sizeof(psta->bssrateset); i++) { - if (psta->bssrateset[i]) - tx_ra_bitmap |= rtw_get_bit_value_from_ieee_value(psta->bssrateset[i] & 0x7f); - } - /* n mode ra_bitmap */ - if (psta_ht->ht_option) { - limit = 8; /* 1R */ - - for (i = 0; i < limit; i++) { - if (psta_ht->ht_cap.mcs.rx_mask[i / 8] & BIT(i % 8)) - tx_ra_bitmap |= BIT(i + 12); - } - - /* max short GI rate */ - shortGIrate = psta_ht->sgi; - } - - if (pcur_network->Configuration.DSConfig > 14) { - sta_band |= WIRELESS_INVALID; - } else { - if (tx_ra_bitmap & 0xffff000) - sta_band |= WIRELESS_11_24N | WIRELESS_11G | WIRELESS_11B; - else if (tx_ra_bitmap & 0xff0) - sta_band |= WIRELESS_11G | WIRELESS_11B; - else - sta_band |= WIRELESS_11B; - } - - psta->wireless_mode = sta_band; - - raid = networktype_to_raid(sta_band); - init_rate = get_highest_rate_idx(tx_ra_bitmap & 0x0fffffff) & 0x3f; - - if (psta->aid < NUM_STA) { - u8 arg = 0; - - arg = psta->mac_id & 0x1f; - - arg |= BIT(7);/* support entry 2~31 */ - - if (shortGIrate) - arg |= BIT(5); - - tx_ra_bitmap |= ((raid << 28) & 0xf0000000); - - /* bitmap[0:27] = tx_rate_bitmap */ - /* bitmap[28:31]= Rate Adaptive id */ - /* arg[0:4] = macid */ - /* arg[5] = Short GI */ - rtl8188e_Add_RateATid(padapter, tx_ra_bitmap, arg, rssi_level); - - if (shortGIrate) - init_rate |= BIT(6); - - /* set ra_id, init_rate */ - psta->raid = raid; - psta->init_rate = init_rate; - } -} - -void update_bmc_sta(struct adapter *padapter) -{ - u32 init_rate = 0; - unsigned char network_type, raid; - int i, supportRateNum = 0; - unsigned int tx_ra_bitmap = 0; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct wlan_bssid_ex *pcur_network = (struct wlan_bssid_ex *)&pmlmepriv->cur_network.network; - struct sta_info *psta = rtw_get_bcmc_stainfo(padapter); - - if (psta) { - psta->aid = 0;/* default set to 0 */ - psta->mac_id = psta->aid + 1; - - psta->qos_option = 0; - psta->htpriv.ht_option = false; - - psta->ieee8021x_blocked = 0; - - memset((void *)&psta->sta_stats, 0, sizeof(struct stainfo_stats)); - - /* prepare for add_RATid */ - supportRateNum = rtw_get_rateset_len((u8 *)&pcur_network->SupportedRates); - network_type = rtw_check_network_type((u8 *)&pcur_network->SupportedRates, supportRateNum, 1); - - memcpy(psta->bssrateset, &pcur_network->SupportedRates, supportRateNum); - psta->bssratelen = supportRateNum; - - /* b/g mode ra_bitmap */ - for (i = 0; i < supportRateNum; i++) { - if (psta->bssrateset[i]) - tx_ra_bitmap |= rtw_get_bit_value_from_ieee_value(psta->bssrateset[i] & 0x7f); - } - - if (pcur_network->Configuration.DSConfig > 14) { - network_type = WIRELESS_INVALID; - } else { - /* force to b mode */ - network_type = WIRELESS_11B; - tx_ra_bitmap = 0xf; - } - - raid = networktype_to_raid(network_type); - init_rate = get_highest_rate_idx(tx_ra_bitmap & 0x0fffffff) & 0x3f; - - /* ap mode */ - rtl8188e_SetHalODMVar(padapter, psta, true); - - { - u8 arg = 0; - - arg = psta->mac_id & 0x1f; - arg |= BIT(7); - tx_ra_bitmap |= ((raid << 28) & 0xf0000000); - - /* bitmap[0:27] = tx_rate_bitmap */ - /* bitmap[28:31]= Rate Adaptive id */ - /* arg[0:4] = macid */ - /* arg[5] = Short GI */ - rtl8188e_Add_RateATid(padapter, tx_ra_bitmap, arg, 0); - } - /* set ra_id, init_rate */ - psta->raid = raid; - psta->init_rate = init_rate; - - rtw_sta_media_status_rpt(padapter, psta, 1); - - spin_lock_bh(&psta->lock); - psta->state = _FW_LINKED; - spin_unlock_bh(&psta->lock); - } -} - -/* notes: */ -/* AID: 1~MAX for sta and 0 for bc/mc in ap/adhoc mode */ -/* MAC_ID = AID+1 for sta in ap/adhoc mode */ -/* MAC_ID = 1 for bc/mc for sta/ap/adhoc */ -/* MAC_ID = 0 for bssid for sta/ap/adhoc */ -/* CAM_ID = 0~3 for default key, cmd_id = macid + 3, macid = aid+1; */ - -void update_sta_info_apmode(struct adapter *padapter, struct sta_info *psta) -{ - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct security_priv *psecuritypriv = &padapter->securitypriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct ht_priv *phtpriv_ap = &pmlmepriv->htpriv; - struct ht_priv *phtpriv_sta = &psta->htpriv; - u16 sta_cap_info; - u16 ap_cap_info; - - psta->mac_id = psta->aid + 1; - - /* ap mode */ - rtl8188e_SetHalODMVar(padapter, psta, true); - - if (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) - psta->ieee8021x_blocked = true; - else - psta->ieee8021x_blocked = false; - - /* update sta's cap */ - - /* ERP */ - VCS_update(padapter, psta); - /* HT related cap */ - if (phtpriv_sta->ht_option) { - /* check if sta supports rx ampdu */ - phtpriv_sta->ampdu_enable = phtpriv_ap->ampdu_enable; - sta_cap_info = le16_to_cpu(phtpriv_sta->ht_cap.cap_info); - ap_cap_info = le16_to_cpu(phtpriv_ap->ht_cap.cap_info); - - /* check if sta support s Short GI */ - if ((sta_cap_info & ap_cap_info) & - (IEEE80211_HT_CAP_SGI_20 | IEEE80211_HT_CAP_SGI_40)) - phtpriv_sta->sgi = true; - - /* bwmode */ - if ((sta_cap_info & ap_cap_info) & IEEE80211_HT_CAP_SUP_WIDTH_20_40) { - phtpriv_sta->bwmode = pmlmeext->cur_bwmode; - phtpriv_sta->ch_offset = pmlmeext->cur_ch_offset; - } - psta->qos_option = true; - } else { - phtpriv_sta->ampdu_enable = false; - phtpriv_sta->sgi = false; - phtpriv_sta->bwmode = HT_CHANNEL_WIDTH_20; - phtpriv_sta->ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE; - } - - /* Rx AMPDU */ - send_delba(padapter, 0, psta->hwaddr);/* recipient */ - - /* TX AMPDU */ - send_delba(padapter, 1, psta->hwaddr);/* originator */ - phtpriv_sta->agg_enable_bitmap = 0x0;/* reset */ - phtpriv_sta->candidate_tid_bitmap = 0x0;/* reset */ - - /* todo: init other variables */ - - memset((void *)&psta->sta_stats, 0, sizeof(struct stainfo_stats)); - - spin_lock_bh(&psta->lock); - psta->state |= _FW_LINKED; - spin_unlock_bh(&psta->lock); -} - -static void update_bcn_erpinfo_ie(struct adapter *padapter) -{ - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; - struct wlan_bssid_ex *pnetwork = &pmlmeinfo->network; - unsigned char *p, *ie = pnetwork->IEs; - u32 len = 0; - - if (!pmlmeinfo->ERP_enable) - return; - - /* parsing ERP_IE */ - p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _ERPINFO_IE_, &len, - (pnetwork->IELength - _BEACON_IE_OFFSET_)); - if (p && len > 0) { - struct ndis_802_11_var_ie *pIE = (struct ndis_802_11_var_ie *)p; - - if (pmlmepriv->num_sta_non_erp == 1) - pIE->data[0] |= RTW_ERP_INFO_NON_ERP_PRESENT | RTW_ERP_INFO_USE_PROTECTION; - else - pIE->data[0] &= ~(RTW_ERP_INFO_NON_ERP_PRESENT | RTW_ERP_INFO_USE_PROTECTION); - - if (pmlmepriv->num_sta_no_short_preamble > 0) - pIE->data[0] |= RTW_ERP_INFO_BARKER_PREAMBLE_MODE; - else - pIE->data[0] &= ~(RTW_ERP_INFO_BARKER_PREAMBLE_MODE); - - ERP_IE_handler(padapter, pIE); - } -} - -static void update_bcn_wps_ie(struct adapter *padapter) -{ - u8 *pwps_ie = NULL, *pwps_ie_src; - u8 *premainder_ie, *pbackup_remainder_ie = NULL; - uint wps_ielen = 0, wps_offset, remainder_ielen; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; - struct wlan_bssid_ex *pnetwork = &pmlmeinfo->network; - unsigned char *ie = pnetwork->IEs; - u32 ielen = pnetwork->IELength; - - pwps_ie = rtw_get_wps_ie(ie + _FIXED_IE_LENGTH_, ielen - _FIXED_IE_LENGTH_, NULL, &wps_ielen); - - if (!pwps_ie || wps_ielen == 0) - return; - - wps_offset = (uint)(pwps_ie - ie); - - premainder_ie = pwps_ie + wps_ielen; - - remainder_ielen = ielen - wps_offset - wps_ielen; - - if (remainder_ielen > 0) { - pbackup_remainder_ie = kmalloc(remainder_ielen, GFP_ATOMIC); - if (pbackup_remainder_ie) - memcpy(pbackup_remainder_ie, premainder_ie, remainder_ielen); - } - - pwps_ie_src = pmlmepriv->wps_beacon_ie; - if (!pwps_ie_src) - goto exit; - - wps_ielen = (uint)pwps_ie_src[1];/* to get ie data len */ - if ((wps_offset + wps_ielen + 2 + remainder_ielen) <= MAX_IE_SZ) { - memcpy(pwps_ie, pwps_ie_src, wps_ielen + 2); - pwps_ie += (wps_ielen + 2); - - if (pbackup_remainder_ie) - memcpy(pwps_ie, pbackup_remainder_ie, remainder_ielen); - - /* update IELength */ - pnetwork->IELength = wps_offset + (wps_ielen + 2) + remainder_ielen; - } - -exit: - kfree(pbackup_remainder_ie); -} - -static void update_bcn_vendor_spec_ie(struct adapter *padapter, u8 *oui) -{ - if (!memcmp(WPS_OUI, oui, 4)) - update_bcn_wps_ie(padapter); -} - -void update_beacon(struct adapter *padapter, u8 ie_id, u8 *oui, u8 tx) -{ - struct mlme_priv *pmlmepriv; - struct mlme_ext_priv *pmlmeext; - - if (!padapter) - return; - - pmlmepriv = &padapter->mlmepriv; - pmlmeext = &padapter->mlmeextpriv; - - if (!pmlmeext->bstart_bss) - return; - - spin_lock_bh(&pmlmepriv->bcn_update_lock); - - switch (ie_id) { - case _TIM_IE_: - update_BCNTIM(padapter); - break; - case _ERPINFO_IE_: - update_bcn_erpinfo_ie(padapter); - break; - case _VENDOR_SPECIFIC_IE_: - update_bcn_vendor_spec_ie(padapter, oui); - break; - default: - break; - } - - pmlmepriv->update_bcn = true; - - spin_unlock_bh(&pmlmepriv->bcn_update_lock); - - if (tx) - set_tx_beacon_cmd(padapter); -} - -/* op_mode - * Set to 0 (HT pure) under the following conditions - * - all STAs in the BSS are 20/40 MHz HT in 20/40 MHz BSS or - * - all STAs in the BSS are 20 MHz HT in 20 MHz BSS - * Set to 1 (HT non-member protection) if there may be non-HT STAs - * in both the primary and the secondary channel - * Set to 2 if only HT STAs are associated in BSS, - * however and at least one 20 MHz HT STA is associated - * Set to 3 (HT mixed mode) when one or more non-HT STAs are associated - * (currently non-GF HT station is considered as non-HT STA also) - */ -static int rtw_ht_operation_update(struct adapter *padapter) -{ - u16 cur_op_mode, new_op_mode; - int op_mode_changes = 0; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct ht_priv *phtpriv_ap = &pmlmepriv->htpriv; - - if (pmlmepriv->htpriv.ht_option) - return 0; - - if (!(pmlmepriv->ht_op_mode & HT_INFO_OPERATION_MODE_NON_GF_DEVS_PRESENT) && - pmlmepriv->num_sta_ht_no_gf) { - pmlmepriv->ht_op_mode |= - HT_INFO_OPERATION_MODE_NON_GF_DEVS_PRESENT; - op_mode_changes++; - } else if ((pmlmepriv->ht_op_mode & - HT_INFO_OPERATION_MODE_NON_GF_DEVS_PRESENT) && - pmlmepriv->num_sta_ht_no_gf == 0) { - pmlmepriv->ht_op_mode &= - ~HT_INFO_OPERATION_MODE_NON_GF_DEVS_PRESENT; - op_mode_changes++; - } - - if (!(pmlmepriv->ht_op_mode & HT_INFO_OPERATION_MODE_NON_HT_STA_PRESENT) && - (pmlmepriv->num_sta_no_ht || pmlmepriv->olbc_ht)) { - pmlmepriv->ht_op_mode |= HT_INFO_OPERATION_MODE_NON_HT_STA_PRESENT; - op_mode_changes++; - } else if ((pmlmepriv->ht_op_mode & - HT_INFO_OPERATION_MODE_NON_HT_STA_PRESENT) && - (pmlmepriv->num_sta_no_ht == 0 && !pmlmepriv->olbc_ht)) { - pmlmepriv->ht_op_mode &= - ~HT_INFO_OPERATION_MODE_NON_HT_STA_PRESENT; - op_mode_changes++; - } - - /* Note: currently we switch to the MIXED op mode if HT non-greenfield - * station is associated. Probably it's a theoretical case, since - * it looks like all known HT STAs support greenfield. - */ - new_op_mode = 0; - if (pmlmepriv->num_sta_no_ht || - (pmlmepriv->ht_op_mode & HT_INFO_OPERATION_MODE_NON_GF_DEVS_PRESENT)) - new_op_mode = OP_MODE_MIXED; - else if ((le16_to_cpu(phtpriv_ap->ht_cap.cap_info) & - IEEE80211_HT_CAP_SUP_WIDTH_20_40) && - pmlmepriv->num_sta_ht_20mhz) - new_op_mode = OP_MODE_20MHZ_HT_STA_ASSOCED; - else if (pmlmepriv->olbc_ht) - new_op_mode = OP_MODE_MAY_BE_LEGACY_STAS; - else - new_op_mode = OP_MODE_PURE; - - cur_op_mode = pmlmepriv->ht_op_mode & HT_INFO_OPERATION_MODE_OP_MODE_MASK; - if (cur_op_mode != new_op_mode) { - pmlmepriv->ht_op_mode &= ~HT_INFO_OPERATION_MODE_OP_MODE_MASK; - pmlmepriv->ht_op_mode |= new_op_mode; - op_mode_changes++; - } - - return op_mode_changes; -} - -void associated_clients_update(struct adapter *padapter, u8 updated) -{ - /* update associated stations cap. */ - if (updated) { - struct list_head *phead, *plist; - struct sta_info *psta = NULL; - struct sta_priv *pstapriv = &padapter->stapriv; - - spin_lock_bh(&pstapriv->asoc_list_lock); - - phead = &pstapriv->asoc_list; - plist = phead->next; - - /* check asoc_queue */ - while (phead != plist) { - psta = container_of(plist, struct sta_info, asoc_list); - - plist = plist->next; - - VCS_update(padapter, psta); - } - spin_unlock_bh(&pstapriv->asoc_list_lock); - } -} - -/* called > TSR LEVEL for USB or SDIO Interface*/ -void bss_cap_update_on_sta_join(struct adapter *padapter, struct sta_info *psta) -{ - u8 beacon_updated = false; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - - if (!(psta->flags & WLAN_STA_SHORT_PREAMBLE)) { - if (!psta->no_short_preamble_set) { - psta->no_short_preamble_set = 1; - - pmlmepriv->num_sta_no_short_preamble++; - - if ((pmlmeext->cur_wireless_mode > WIRELESS_11B) && - (pmlmepriv->num_sta_no_short_preamble == 1)) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - } else { - if (psta->no_short_preamble_set) { - psta->no_short_preamble_set = 0; - - pmlmepriv->num_sta_no_short_preamble--; - - if ((pmlmeext->cur_wireless_mode > WIRELESS_11B) && - (pmlmepriv->num_sta_no_short_preamble == 0)) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - } - - if (psta->flags & WLAN_STA_NONERP) { - if (!psta->nonerp_set) { - psta->nonerp_set = 1; - - pmlmepriv->num_sta_non_erp++; - - if (pmlmepriv->num_sta_non_erp == 1) { - beacon_updated = true; - update_beacon(padapter, _ERPINFO_IE_, NULL, true); - } - } - } else { - if (psta->nonerp_set) { - psta->nonerp_set = 0; - - pmlmepriv->num_sta_non_erp--; - - if (pmlmepriv->num_sta_non_erp == 0) { - beacon_updated = true; - update_beacon(padapter, _ERPINFO_IE_, NULL, true); - } - } - } - - if (!(psta->capability & WLAN_CAPABILITY_SHORT_SLOT)) { - if (!psta->no_short_slot_time_set) { - psta->no_short_slot_time_set = 1; - - pmlmepriv->num_sta_no_short_slot_time++; - - if ((pmlmeext->cur_wireless_mode > WIRELESS_11B) && - (pmlmepriv->num_sta_no_short_slot_time == 1)) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - } else { - if (psta->no_short_slot_time_set) { - psta->no_short_slot_time_set = 0; - - pmlmepriv->num_sta_no_short_slot_time--; - - if ((pmlmeext->cur_wireless_mode > WIRELESS_11B) && - (pmlmepriv->num_sta_no_short_slot_time == 0)) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - } - - if (psta->flags & WLAN_STA_HT) { - u16 ht_capab = le16_to_cpu(psta->htpriv.ht_cap.cap_info); - - if (psta->no_ht_set) { - psta->no_ht_set = 0; - pmlmepriv->num_sta_no_ht--; - } - - if ((ht_capab & IEEE80211_HT_CAP_GRN_FLD) == 0) { - if (!psta->no_ht_gf_set) { - psta->no_ht_gf_set = 1; - pmlmepriv->num_sta_ht_no_gf++; - } - } - - if ((ht_capab & IEEE80211_HT_CAP_SUP_WIDTH_20_40) == 0) { - if (!psta->ht_20mhz_set) { - psta->ht_20mhz_set = 1; - pmlmepriv->num_sta_ht_20mhz++; - } - } - } else { - if (!psta->no_ht_set) { - psta->no_ht_set = 1; - pmlmepriv->num_sta_no_ht++; - } - } - - if (rtw_ht_operation_update(padapter) > 0) { - update_beacon(padapter, _HT_CAPABILITY_IE_, NULL, false); - update_beacon(padapter, _HT_ADD_INFO_IE_, NULL, true); - } - - /* update associated stations cap. */ - associated_clients_update(padapter, beacon_updated); -} - -u8 bss_cap_update_on_sta_leave(struct adapter *padapter, struct sta_info *psta) -{ - u8 beacon_updated = false; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - - if (!psta) - return beacon_updated; - - if (psta->no_short_preamble_set) { - psta->no_short_preamble_set = 0; - pmlmepriv->num_sta_no_short_preamble--; - if (pmlmeext->cur_wireless_mode > WIRELESS_11B && - pmlmepriv->num_sta_no_short_preamble == 0) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - - if (psta->nonerp_set) { - psta->nonerp_set = 0; - pmlmepriv->num_sta_non_erp--; - if (pmlmepriv->num_sta_non_erp == 0) { - beacon_updated = true; - update_beacon(padapter, _ERPINFO_IE_, NULL, true); - } - } - - if (psta->no_short_slot_time_set) { - psta->no_short_slot_time_set = 0; - pmlmepriv->num_sta_no_short_slot_time--; - if (pmlmeext->cur_wireless_mode > WIRELESS_11B && - pmlmepriv->num_sta_no_short_slot_time == 0) { - beacon_updated = true; - update_beacon(padapter, 0xFF, NULL, true); - } - } - - if (psta->no_ht_gf_set) { - psta->no_ht_gf_set = 0; - pmlmepriv->num_sta_ht_no_gf--; - } - - if (psta->no_ht_set) { - psta->no_ht_set = 0; - pmlmepriv->num_sta_no_ht--; - } - - if (psta->ht_20mhz_set) { - psta->ht_20mhz_set = 0; - pmlmepriv->num_sta_ht_20mhz--; - } - - if (rtw_ht_operation_update(padapter) > 0) { - update_beacon(padapter, _HT_CAPABILITY_IE_, NULL, false); - update_beacon(padapter, _HT_ADD_INFO_IE_, NULL, true); - } - - /* update associated stations cap. */ - - return beacon_updated; -} - -void rtw_indicate_sta_assoc_event(struct adapter *padapter, struct sta_info *psta) -{ - union iwreq_data wrqu; - struct sta_priv *pstapriv = &padapter->stapriv; - - if (!psta) - return; - - if (psta->aid > NUM_STA) - return; - - if (pstapriv->sta_aid[psta->aid - 1] != psta) - return; - - wrqu.addr.sa_family = ARPHRD_ETHER; - - memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN); - - wireless_send_event(padapter->pnetdev, IWEVREGISTERED, &wrqu, NULL); -} - -static void rtw_indicate_sta_disassoc_event(struct adapter *padapter, struct sta_info *psta) -{ - union iwreq_data wrqu; - struct sta_priv *pstapriv = &padapter->stapriv; - - if (!psta) - return; - - if (psta->aid > NUM_STA) - return; - - if (pstapriv->sta_aid[psta->aid - 1] != psta) - return; - - wrqu.addr.sa_family = ARPHRD_ETHER; - - memcpy(wrqu.addr.sa_data, psta->hwaddr, ETH_ALEN); - - wireless_send_event(padapter->pnetdev, IWEVEXPIRED, &wrqu, NULL); -} - -u8 ap_free_sta(struct adapter *padapter, struct sta_info *psta, - bool active, u16 reason) -{ - u8 beacon_updated = false; - struct sta_priv *pstapriv = &padapter->stapriv; - - if (!psta) - return beacon_updated; - - /* tear down Rx AMPDU */ - send_delba(padapter, 0, psta->hwaddr);/* recipient */ - - /* tear down TX AMPDU */ - send_delba(padapter, 1, psta->hwaddr);/* originator */ - psta->htpriv.agg_enable_bitmap = 0x0;/* reset */ - psta->htpriv.candidate_tid_bitmap = 0x0;/* reset */ - - if (active) - issue_deauth(padapter, psta->hwaddr, reason); - - /* clear cam entry / key */ - rtw_clearstakey_cmd(padapter, (u8 *)psta, (u8)(psta->mac_id + 3), true); - - spin_lock_bh(&psta->lock); - psta->state &= ~_FW_LINKED; - spin_unlock_bh(&psta->lock); - - rtw_indicate_sta_disassoc_event(padapter, psta); - - report_del_sta_event(padapter, psta->hwaddr, reason); - - beacon_updated = bss_cap_update_on_sta_leave(padapter, psta); - - spin_lock_bh(&pstapriv->sta_hash_lock); - rtw_free_stainfo(padapter, psta); - spin_unlock_bh(&pstapriv->sta_hash_lock); - - return beacon_updated; -} - -void rtw_sta_flush(struct adapter *padapter) -{ - struct list_head *phead, *plist; - struct sta_info *psta = NULL; - struct sta_priv *pstapriv = &padapter->stapriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; - u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; - - if ((pmlmeinfo->state & 0x03) != WIFI_FW_AP_STATE) - return; - - spin_lock_bh(&pstapriv->asoc_list_lock); - phead = &pstapriv->asoc_list; - plist = phead->next; - - /* free sta asoc_queue */ - while (phead != plist) { - psta = container_of(plist, struct sta_info, asoc_list); - - plist = plist->next; - - list_del_init(&psta->asoc_list); - pstapriv->asoc_list_cnt--; - - ap_free_sta(padapter, psta, true, WLAN_REASON_DEAUTH_LEAVING); - } - spin_unlock_bh(&pstapriv->asoc_list_lock); - - issue_deauth(padapter, bc_addr, WLAN_REASON_DEAUTH_LEAVING); - - associated_clients_update(padapter, true); -} - -/* called > TSR LEVEL for USB or SDIO Interface*/ -void sta_info_update(struct adapter *padapter, struct sta_info *psta) -{ - int flags = psta->flags; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - - /* update wmm cap. */ - if (WLAN_STA_WME & flags) - psta->qos_option = 1; - else - psta->qos_option = 0; - - if (pmlmepriv->qospriv.qos_option == 0) - psta->qos_option = 0; - - /* update 802.11n ht cap. */ - if (WLAN_STA_HT & flags) { - psta->htpriv.ht_option = true; - psta->qos_option = 1; - } else { - psta->htpriv.ht_option = false; - } - - if (!pmlmepriv->htpriv.ht_option) - psta->htpriv.ht_option = false; - - update_sta_info_apmode(padapter, psta); -} - -void start_ap_mode(struct adapter *padapter) -{ - int i; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct sta_priv *pstapriv = &padapter->stapriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; - - pmlmepriv->update_bcn = false; - - pmlmeext->bstart_bss = false; - - pmlmepriv->num_sta_non_erp = 0; - - pmlmepriv->num_sta_no_short_slot_time = 0; - - pmlmepriv->num_sta_no_short_preamble = 0; - - pmlmepriv->num_sta_ht_no_gf = 0; - pmlmepriv->num_sta_no_ht = 0; - pmlmepriv->num_sta_ht_20mhz = 0; - - pmlmepriv->olbc = false; - - pmlmepriv->olbc_ht = false; - - pmlmepriv->ht_op_mode = 0; - - for (i = 0; i < NUM_STA; i++) - pstapriv->sta_aid[i] = NULL; - - pmlmepriv->wps_beacon_ie = NULL; - pmlmepriv->wps_probe_resp_ie = NULL; - pmlmepriv->wps_assoc_resp_ie = NULL; - - pmlmepriv->p2p_beacon_ie = NULL; - pmlmepriv->p2p_probe_resp_ie = NULL; - - /* for ACL */ - INIT_LIST_HEAD(&pacl_list->acl_node_q.queue); - pacl_list->num = 0; - pacl_list->mode = 0; - for (i = 0; i < NUM_ACL; i++) { - INIT_LIST_HEAD(&pacl_list->aclnode[i].list); - pacl_list->aclnode[i].valid = false; - } -} - -void stop_ap_mode(struct adapter *padapter) -{ - struct list_head *phead, *plist; - struct rtw_wlan_acl_node *paclnode; - struct sta_info *psta = NULL; - struct sta_priv *pstapriv = &padapter->stapriv; - struct mlme_priv *pmlmepriv = &padapter->mlmepriv; - struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv; - struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; - struct __queue *pacl_node_q = &pacl_list->acl_node_q; - - pmlmepriv->update_bcn = false; - pmlmeext->bstart_bss = false; - - /* reset and init security priv , this can refine with rtw_reset_securitypriv */ - memset((unsigned char *)&padapter->securitypriv, 0, sizeof(struct security_priv)); - padapter->securitypriv.ndisauthtype = Ndis802_11AuthModeOpen; - padapter->securitypriv.ndisencryptstatus = Ndis802_11WEPDisabled; - - /* for ACL */ - spin_lock_bh(&pacl_node_q->lock); - phead = get_list_head(pacl_node_q); - plist = phead->next; - while (phead != plist) { - paclnode = container_of(plist, struct rtw_wlan_acl_node, list); - plist = plist->next; - - if (paclnode->valid) { - paclnode->valid = false; - - list_del_init(&paclnode->list); - - pacl_list->num--; - } - } - spin_unlock_bh(&pacl_node_q->lock); - - rtw_sta_flush(padapter); - - /* free_assoc_sta_resources */ - rtw_free_all_stainfo(padapter); - - psta = rtw_get_bcmc_stainfo(padapter); - spin_lock_bh(&pstapriv->sta_hash_lock); - rtw_free_stainfo(padapter, psta); - spin_unlock_bh(&pstapriv->sta_hash_lock); - - rtw_init_bcmc_stainfo(padapter); - - rtw_free_mlme_priv_ie_data(pmlmepriv); -} |