| // 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; |
| } |
| |
| 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; |
| } |
| |
| int rtw_sta_flush(struct adapter *padapter) |
| { |
| struct list_head *phead, *plist; |
| int ret = 0; |
| 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 ret; |
| |
| 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); |
| |
| return ret; |
| } |
| |
| /* 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); |
| } |