| // SPDX-License-Identifier: GPL-2.0 |
| /* Copyright(c) 2007 - 2011 Realtek Corporation. */ |
| |
| #define _RTW_STA_MGT_C_ |
| |
| #include "../include/osdep_service.h" |
| #include "../include/drv_types.h" |
| #include "../include/recv_osdep.h" |
| #include "../include/xmit_osdep.h" |
| #include "../include/mlme_osdep.h" |
| #include "../include/sta_info.h" |
| |
| static void _rtw_init_stainfo(struct sta_info *psta) |
| { |
| |
| memset((u8 *)psta, 0, sizeof(struct sta_info)); |
| |
| spin_lock_init(&psta->lock); |
| INIT_LIST_HEAD(&psta->list); |
| INIT_LIST_HEAD(&psta->hash_list); |
| rtw_init_queue(&psta->sleep_q); |
| psta->sleepq_len = 0; |
| |
| _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); |
| _rtw_init_sta_recv_priv(&psta->sta_recvpriv); |
| |
| INIT_LIST_HEAD(&psta->asoc_list); |
| |
| INIT_LIST_HEAD(&psta->auth_list); |
| |
| psta->expire_to = 0; |
| |
| psta->flags = 0; |
| |
| psta->capability = 0; |
| |
| psta->bpairwise_key_installed = false; |
| |
| psta->nonerp_set = 0; |
| psta->no_short_slot_time_set = 0; |
| psta->no_short_preamble_set = 0; |
| psta->no_ht_gf_set = 0; |
| psta->no_ht_set = 0; |
| psta->ht_20mhz_set = 0; |
| |
| psta->under_exist_checking = 0; |
| |
| psta->keep_alive_trycnt = 0; |
| } |
| |
| u32 _rtw_init_sta_priv(struct sta_priv *pstapriv) |
| { |
| struct sta_info *psta; |
| s32 i; |
| |
| pstapriv->pallocated_stainfo_buf = vzalloc(sizeof(struct sta_info) * NUM_STA + 4); |
| |
| if (!pstapriv->pallocated_stainfo_buf) |
| return _FAIL; |
| |
| pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 - |
| ((size_t)(pstapriv->pallocated_stainfo_buf) & 3); |
| |
| rtw_init_queue(&pstapriv->free_sta_queue); |
| |
| spin_lock_init(&pstapriv->sta_hash_lock); |
| |
| pstapriv->asoc_sta_count = 0; |
| rtw_init_queue(&pstapriv->sleep_q); |
| rtw_init_queue(&pstapriv->wakeup_q); |
| |
| psta = (struct sta_info *)(pstapriv->pstainfo_buf); |
| |
| for (i = 0; i < NUM_STA; i++) { |
| _rtw_init_stainfo(psta); |
| |
| INIT_LIST_HEAD(&pstapriv->sta_hash[i]); |
| |
| list_add_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue)); |
| |
| psta++; |
| } |
| |
| pstapriv->sta_dz_bitmap = 0; |
| pstapriv->tim_bitmap = 0; |
| |
| INIT_LIST_HEAD(&pstapriv->asoc_list); |
| INIT_LIST_HEAD(&pstapriv->auth_list); |
| spin_lock_init(&pstapriv->asoc_list_lock); |
| spin_lock_init(&pstapriv->auth_list_lock); |
| pstapriv->asoc_list_cnt = 0; |
| pstapriv->auth_list_cnt = 0; |
| |
| pstapriv->auth_to = 3; /* 3*2 = 6 sec */ |
| pstapriv->assoc_to = 3; |
| pstapriv->expire_to = 3; /* 3*2 = 6 sec */ |
| pstapriv->max_num_sta = NUM_STA; |
| |
| return _SUCCESS; |
| } |
| |
| inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta) |
| { |
| return (((u8 *)sta) - stapriv->pstainfo_buf) / sizeof(struct sta_info); |
| } |
| |
| inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset) |
| { |
| return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info)); |
| } |
| |
| void _rtw_free_sta_priv(struct sta_priv *pstapriv) |
| { |
| struct list_head *phead, *plist; |
| struct sta_info *psta = NULL; |
| struct recv_reorder_ctrl *preorder_ctrl; |
| int index; |
| |
| if (pstapriv) { |
| /* delete all reordering_ctrl_timer */ |
| spin_lock_bh(&pstapriv->sta_hash_lock); |
| for (index = 0; index < NUM_STA; index++) { |
| phead = &pstapriv->sta_hash[index]; |
| plist = phead->next; |
| |
| while (phead != plist) { |
| int i; |
| psta = container_of(plist, struct sta_info, hash_list); |
| plist = plist->next; |
| |
| for (i = 0; i < 16; i++) { |
| preorder_ctrl = &psta->recvreorder_ctrl[i]; |
| _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer); |
| } |
| } |
| } |
| spin_unlock_bh(&pstapriv->sta_hash_lock); |
| /*===============================*/ |
| |
| vfree(pstapriv->pallocated_stainfo_buf); |
| } |
| } |
| |
| struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) |
| { |
| s32 index; |
| struct list_head *phash_list; |
| struct sta_info *psta; |
| struct __queue *pfree_sta_queue; |
| struct recv_reorder_ctrl *preorder_ctrl; |
| int i = 0; |
| u16 wRxSeqInitialValue = 0xffff; |
| |
| pfree_sta_queue = &pstapriv->free_sta_queue; |
| |
| spin_lock_bh(&pfree_sta_queue->lock); |
| |
| if (list_empty(&pfree_sta_queue->queue)) { |
| spin_unlock_bh(&pfree_sta_queue->lock); |
| psta = NULL; |
| } else { |
| psta = container_of((&pfree_sta_queue->queue)->next, struct sta_info, list); |
| list_del_init(&psta->list); |
| spin_unlock_bh(&pfree_sta_queue->lock); |
| _rtw_init_stainfo(psta); |
| memcpy(psta->hwaddr, hwaddr, ETH_ALEN); |
| index = wifi_mac_hash(hwaddr); |
| if (index >= NUM_STA) { |
| psta = NULL; |
| goto exit; |
| } |
| phash_list = &pstapriv->sta_hash[index]; |
| |
| spin_lock_bh(&pstapriv->sta_hash_lock); |
| |
| list_add_tail(&psta->hash_list, phash_list); |
| |
| pstapriv->asoc_sta_count++; |
| |
| spin_unlock_bh(&pstapriv->sta_hash_lock); |
| |
| /* Commented by Albert 2009/08/13 */ |
| /* For the SMC router, the sequence number of first packet of WPS handshake will be 0. */ |
| /* In this case, this packet will be dropped by recv_decache function if we use the 0x00 as the default value for tid_rxseq variable. */ |
| /* So, we initialize the tid_rxseq variable as the 0xffff. */ |
| |
| for (i = 0; i < 16; i++) |
| memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2); |
| |
| init_addba_retry_timer(pstapriv->padapter, psta); |
| |
| /* for A-MPDU Rx reordering buffer control */ |
| for (i = 0; i < 16; i++) { |
| preorder_ctrl = &psta->recvreorder_ctrl[i]; |
| |
| preorder_ctrl->padapter = pstapriv->padapter; |
| |
| preorder_ctrl->enable = false; |
| |
| preorder_ctrl->indicate_seq = 0xffff; |
| preorder_ctrl->wend_b = 0xffff; |
| preorder_ctrl->wsize_b = 64;/* 64; */ |
| |
| rtw_init_queue(&preorder_ctrl->pending_recvframe_queue); |
| |
| rtw_init_recv_timer(preorder_ctrl); |
| } |
| |
| /* init for DM */ |
| psta->rssi_stat.UndecoratedSmoothedPWDB = (-1); |
| psta->rssi_stat.UndecoratedSmoothedCCK = (-1); |
| |
| /* init for the sequence number of received management frame */ |
| psta->RxMgmtFrameSeqNum = 0xffff; |
| } |
| |
| exit: |
| |
| return psta; |
| } |
| |
| /* using pstapriv->sta_hash_lock to protect */ |
| u32 rtw_free_stainfo(struct adapter *padapter, struct sta_info *psta) |
| { |
| int i; |
| struct __queue *pfree_sta_queue; |
| struct recv_reorder_ctrl *preorder_ctrl; |
| struct sta_xmit_priv *pstaxmitpriv; |
| struct xmit_priv *pxmitpriv = &padapter->xmitpriv; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| |
| if (!psta) |
| goto exit; |
| |
| pfree_sta_queue = &pstapriv->free_sta_queue; |
| |
| pstaxmitpriv = &psta->sta_xmitpriv; |
| |
| spin_lock_bh(&pxmitpriv->lock); |
| |
| rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q); |
| psta->sleepq_len = 0; |
| |
| rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending); |
| |
| list_del_init(&pstaxmitpriv->vo_q.tx_pending); |
| |
| rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending); |
| |
| list_del_init(&pstaxmitpriv->vi_q.tx_pending); |
| |
| rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending); |
| |
| list_del_init(&pstaxmitpriv->bk_q.tx_pending); |
| |
| rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending); |
| |
| list_del_init(&pstaxmitpriv->be_q.tx_pending); |
| |
| spin_unlock_bh(&pxmitpriv->lock); |
| |
| list_del_init(&psta->hash_list); |
| pstapriv->asoc_sta_count--; |
| |
| /* re-init sta_info; 20061114 */ |
| _rtw_init_sta_xmit_priv(&psta->sta_xmitpriv); |
| _rtw_init_sta_recv_priv(&psta->sta_recvpriv); |
| |
| _cancel_timer_ex(&psta->addba_retry_timer); |
| |
| /* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */ |
| for (i = 0; i < 16 ; i++) { |
| struct list_head *phead, *plist; |
| struct recv_frame *prframe; |
| struct __queue *ppending_recvframe_queue; |
| struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue; |
| |
| preorder_ctrl = &psta->recvreorder_ctrl[i]; |
| |
| _cancel_timer_ex(&preorder_ctrl->reordering_ctrl_timer); |
| |
| ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; |
| |
| spin_lock_bh(&ppending_recvframe_queue->lock); |
| |
| phead = get_list_head(ppending_recvframe_queue); |
| plist = phead->next; |
| |
| while (!list_empty(phead)) { |
| prframe = container_of(plist, struct recv_frame, list); |
| |
| plist = plist->next; |
| |
| list_del_init(&prframe->list); |
| |
| rtw_free_recvframe(prframe, pfree_recv_queue); |
| } |
| |
| spin_unlock_bh(&ppending_recvframe_queue->lock); |
| } |
| |
| if (!(psta->state & WIFI_AP_STATE)) |
| rtl8188e_SetHalODMVar(padapter, psta, false); |
| |
| spin_lock_bh(&pstapriv->auth_list_lock); |
| if (!list_empty(&psta->auth_list)) { |
| list_del_init(&psta->auth_list); |
| pstapriv->auth_list_cnt--; |
| } |
| spin_unlock_bh(&pstapriv->auth_list_lock); |
| |
| psta->expire_to = 0; |
| |
| psta->sleepq_ac_len = 0; |
| psta->qos_info = 0; |
| |
| psta->max_sp_len = 0; |
| psta->uapsd_bk = 0; |
| psta->uapsd_be = 0; |
| psta->uapsd_vi = 0; |
| psta->uapsd_vo = 0; |
| psta->has_legacy_ac = 0; |
| |
| pstapriv->sta_dz_bitmap &= ~BIT(psta->aid); |
| pstapriv->tim_bitmap &= ~BIT(psta->aid); |
| |
| if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) { |
| pstapriv->sta_aid[psta->aid - 1] = NULL; |
| psta->aid = 0; |
| } |
| |
| psta->under_exist_checking = 0; |
| |
| spin_lock_bh(&pfree_sta_queue->lock); |
| list_add_tail(&psta->list, get_list_head(pfree_sta_queue)); |
| spin_unlock_bh(&pfree_sta_queue->lock); |
| |
| exit: |
| |
| return _SUCCESS; |
| } |
| |
| /* free all stainfo which in sta_hash[all] */ |
| void rtw_free_all_stainfo(struct adapter *padapter) |
| { |
| struct list_head *plist, *phead; |
| s32 index; |
| struct sta_info *psta = NULL; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter); |
| |
| if (pstapriv->asoc_sta_count == 1) |
| return; |
| |
| spin_lock_bh(&pstapriv->sta_hash_lock); |
| |
| for (index = 0; index < NUM_STA; index++) { |
| phead = &pstapriv->sta_hash[index]; |
| plist = phead->next; |
| |
| while (phead != plist) { |
| psta = container_of(plist, struct sta_info, hash_list); |
| |
| plist = plist->next; |
| |
| if (pbcmc_stainfo != psta) |
| rtw_free_stainfo(padapter, psta); |
| } |
| } |
| spin_unlock_bh(&pstapriv->sta_hash_lock); |
| } |
| |
| /* any station allocated can be searched by hash list */ |
| struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr) |
| { |
| struct list_head *plist, *phead; |
| struct sta_info *psta = NULL; |
| u32 index; |
| u8 *addr; |
| u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| |
| if (!hwaddr) |
| return NULL; |
| |
| if (IS_MCAST(hwaddr)) |
| addr = bc_addr; |
| else |
| addr = hwaddr; |
| |
| index = wifi_mac_hash(addr); |
| |
| spin_lock_bh(&pstapriv->sta_hash_lock); |
| |
| phead = &pstapriv->sta_hash[index]; |
| plist = phead->next; |
| |
| while (phead != plist) { |
| psta = container_of(plist, struct sta_info, hash_list); |
| |
| if ((!memcmp(psta->hwaddr, addr, ETH_ALEN))) { |
| /* if found the matched address */ |
| break; |
| } |
| psta = NULL; |
| plist = plist->next; |
| } |
| |
| spin_unlock_bh(&pstapriv->sta_hash_lock); |
| |
| return psta; |
| } |
| |
| u32 rtw_init_bcmc_stainfo(struct adapter *padapter) |
| { |
| struct sta_info *psta; |
| u32 res = _SUCCESS; |
| unsigned char bcast_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| |
| psta = rtw_alloc_stainfo(pstapriv, bcast_addr); |
| |
| if (!psta) { |
| res = _FAIL; |
| goto exit; |
| } |
| |
| /* default broadcast & multicast use macid 1 */ |
| psta->mac_id = 1; |
| |
| exit: |
| |
| return res; |
| } |
| |
| struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter) |
| { |
| struct sta_info *psta; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; |
| |
| psta = rtw_get_stainfo(pstapriv, bc_addr); |
| |
| return psta; |
| } |
| |
| u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr) |
| { |
| u8 res = true; |
| struct list_head *plist, *phead; |
| struct rtw_wlan_acl_node *paclnode; |
| u8 match = false; |
| struct sta_priv *pstapriv = &padapter->stapriv; |
| struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; |
| struct __queue *pacl_node_q = &pacl_list->acl_node_q; |
| |
| 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 (!memcmp(paclnode->addr, mac_addr, ETH_ALEN)) { |
| if (paclnode->valid) { |
| match = true; |
| break; |
| } |
| } |
| } |
| spin_unlock_bh(&pacl_node_q->lock); |
| |
| if (pacl_list->mode == 1)/* accept unless in deny list */ |
| res = (match) ? false : true; |
| else if (pacl_list->mode == 2)/* deny unless in accept list */ |
| res = (match) ? true : false; |
| else |
| res = true; |
| |
| return res; |
| } |