diff options
Diffstat (limited to 'drivers/staging/rtl8723au/core/rtw_sta_mgt.c')
| -rw-r--r-- | drivers/staging/rtl8723au/core/rtw_sta_mgt.c | 451 |
1 files changed, 451 insertions, 0 deletions
diff --git a/drivers/staging/rtl8723au/core/rtw_sta_mgt.c b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c new file mode 100644 index 000000000..b06bff745 --- /dev/null +++ b/drivers/staging/rtl8723au/core/rtw_sta_mgt.c @@ -0,0 +1,451 @@ +/****************************************************************************** + * + * Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of version 2 of the GNU General Public License as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + ******************************************************************************/ +#define _RTW_STA_MGT_C_ + +#include <osdep_service.h> +#include <drv_types.h> +#include <recv_osdep.h> +#include <xmit_osdep.h> +#include <mlme_osdep.h> +#include <sta_info.h> +#include <rtl8723a_hal.h> + +static const u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff}; + +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_queue23a(&psta->sleep_q); + psta->sleepq_len = 0; + _rtw_init_sta_xmit_priv23a(&psta->sta_xmitpriv); + _rtw_init_sta_recv_priv23a(&psta->sta_recvpriv); +#ifdef CONFIG_8723AU_AP_MODE + 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->keep_alive_trycnt = 0; +#endif /* CONFIG_8723AU_AP_MODE */ +} + +int _rtw_init_sta_priv23a(struct sta_priv *pstapriv) +{ + int i; + + spin_lock_init(&pstapriv->sta_hash_lock); + pstapriv->asoc_sta_count = 0; + for (i = 0; i < NUM_STA; i++) + INIT_LIST_HEAD(&pstapriv->sta_hash[i]); + +#ifdef CONFIG_8723AU_AP_MODE + 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 = 900; 900*2 = 1800 sec = 30 min, + expire after no any traffic. */ + /* pstapriv->expire_to = 30; 30*2 = 60 sec = 1 min, + expire after no any traffic. */ + pstapriv->expire_to = 3; /* 3*2 = 6 sec */ + pstapriv->max_num_sta = NUM_STA; +#endif + return _SUCCESS; +} + +int _rtw_free_sta_priv23a(struct sta_priv *pstapriv) +{ + struct list_head *phead, *plist, *ptmp; + struct sta_info *psta; + 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]; + + list_for_each_safe(plist, ptmp, phead) { + int i; + + psta = container_of(plist, struct sta_info, + hash_list); + for (i = 0; i < 16 ; i++) { + preorder_ctrl = &psta->recvreorder_ctrl[i]; + del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); + } + } + } + spin_unlock_bh(&pstapriv->sta_hash_lock); + /*===============================*/ + } + return _SUCCESS; +} + +struct sta_info * +rtw_alloc_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr, gfp_t gfp) +{ + struct list_head *phash_list; + struct sta_info *psta; + struct recv_reorder_ctrl *preorder_ctrl; + s32 index; + int i = 0; + u16 wRxSeqInitialValue = 0xffff; + + psta = kmalloc(sizeof(struct sta_info), gfp); + if (!psta) + return NULL; + + spin_lock_bh(&pstapriv->sta_hash_lock); + + _rtw_init_stainfo(psta); + + psta->padapter = pstapriv->padapter; + + ether_addr_copy(psta->hwaddr, hwaddr); + + index = wifi_mac_hash(hwaddr); + + RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, + "rtw_alloc_stainfo23a: index = %x\n", index); + if (index >= NUM_STA) { + RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, + "ERROR => rtw_alloc_stainfo23a: index >= NUM_STA\n"); + psta = NULL; + goto exit; + } + phash_list = &pstapriv->sta_hash[index]; + + list_add_tail(&psta->hash_list, phash_list); + + pstapriv->asoc_sta_count++; + +/* 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); + + RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, + "alloc number_%d stainfo with hwaddr = %pM\n", + pstapriv->asoc_sta_count, hwaddr); + + init_addba_retry_timer23a(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 = (NR_RECVBUFF-2); */ + preorder_ctrl->wsize_b = 64;/* 64; */ + + _rtw_init_queue23a(&preorder_ctrl->pending_recvframe_queue); + + rtw_init_recv_timer23a(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: + spin_unlock_bh(&pstapriv->sta_hash_lock); + return psta; +} + +/* using pstapriv->sta_hash_lock to protect */ +int rtw_free_stainfo23a(struct rtw_adapter *padapter, struct sta_info *psta) +{ + struct recv_reorder_ctrl *preorder_ctrl; + struct sta_xmit_priv *pstaxmitpriv; + struct xmit_priv *pxmitpriv = &padapter->xmitpriv; + struct sta_priv *pstapriv = &padapter->stapriv; + struct hw_xmit *phwxmit; + int i; + + if (psta == NULL) + goto exit; + + spin_lock_bh(&psta->lock); + psta->state &= ~_FW_LINKED; + spin_unlock_bh(&psta->lock); + + pstaxmitpriv = &psta->sta_xmitpriv; + + spin_lock_bh(&pxmitpriv->lock); + + rtw_free_xmitframe_queue23a(pxmitpriv, &psta->sleep_q); + psta->sleepq_len = 0; + + /* vo */ + rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending); + list_del_init(&pstaxmitpriv->vo_q.tx_pending); + phwxmit = pxmitpriv->hwxmits; + phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt; + pstaxmitpriv->vo_q.qcnt = 0; + + /* vi */ + rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending); + list_del_init(&pstaxmitpriv->vi_q.tx_pending); + phwxmit = pxmitpriv->hwxmits+1; + phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt; + pstaxmitpriv->vi_q.qcnt = 0; + + /* be */ + rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->be_q.sta_pending); + list_del_init(&pstaxmitpriv->be_q.tx_pending); + phwxmit = pxmitpriv->hwxmits+2; + phwxmit->accnt -= pstaxmitpriv->be_q.qcnt; + pstaxmitpriv->be_q.qcnt = 0; + + /* bk */ + rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending); + list_del_init(&pstaxmitpriv->bk_q.tx_pending); + phwxmit = pxmitpriv->hwxmits+3; + phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt; + pstaxmitpriv->bk_q.qcnt = 0; + + spin_unlock_bh(&pxmitpriv->lock); + + list_del_init(&psta->hash_list); + RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, + "free number_%d stainfo with hwaddr = %pM\n", + pstapriv->asoc_sta_count, psta->hwaddr); + pstapriv->asoc_sta_count--; + + /* re-init sta_info; 20061114 will be init in alloc_stainfo */ + /* _rtw_init_sta_xmit_priv23a(&psta->sta_xmitpriv); */ + /* _rtw_init_sta_recv_priv23a(&psta->sta_recvpriv); */ + + del_timer_sync(&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 rtw_queue *ppending_recvframe_queue; + + preorder_ctrl = &psta->recvreorder_ctrl[i]; + + del_timer_sync(&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_recvframe23a(prframe); + } + spin_unlock_bh(&ppending_recvframe_queue->lock); + } + if (!(psta->state & WIFI_AP_STATE)) + rtl8723a_SetHalODMVar(padapter, HAL_ODM_STA_INFO, psta, false); +#ifdef CONFIG_8723AU_AP_MODE + 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 &= ~CHKBIT(psta->aid); + pstapriv->tim_bitmap &= ~CHKBIT(psta->aid); + + if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) { + pstapriv->sta_aid[psta->aid - 1] = NULL; + psta->aid = 0; + } +#endif /* CONFIG_8723AU_AP_MODE */ + + kfree(psta); +exit: + return _SUCCESS; +} + +/* free all stainfo which in sta_hash[all] */ +void rtw_free_all_stainfo23a(struct rtw_adapter *padapter) +{ + struct list_head *plist, *phead, *ptmp; + struct sta_info *psta; + struct sta_priv *pstapriv = &padapter->stapriv; + struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo23a(padapter); + s32 index; + + 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]; + + list_for_each_safe(plist, ptmp, phead) { + psta = container_of(plist, struct sta_info, hash_list); + + if (pbcmc_stainfo != psta) + rtw_free_stainfo23a(padapter, psta); + } + } + spin_unlock_bh(&pstapriv->sta_hash_lock); +} + +/* any station allocated can be searched by hash list */ +struct sta_info *rtw_get_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr) +{ + struct list_head *plist, *phead; + struct sta_info *psta = NULL; + u32 index; + const u8 *addr; + + if (hwaddr == NULL) + return NULL; + + if (is_multicast_ether_addr(hwaddr)) + addr = bc_addr; + else + addr = hwaddr; + + index = wifi_mac_hash(addr); + + spin_lock_bh(&pstapriv->sta_hash_lock); + + phead = &pstapriv->sta_hash[index]; + + list_for_each(plist, phead) { + psta = container_of(plist, struct sta_info, hash_list); + + /* if found the matched address */ + if (ether_addr_equal(psta->hwaddr, addr)) + break; + + psta = NULL; + } + spin_unlock_bh(&pstapriv->sta_hash_lock); + return psta; +} + +int rtw_init_bcmc_stainfo23a(struct rtw_adapter *padapter) +{ + struct sta_priv *pstapriv = &padapter->stapriv; + struct sta_info *psta; + struct tx_servq *ptxservq; + int res = _SUCCESS; + + psta = rtw_alloc_stainfo23a(pstapriv, bc_addr, GFP_KERNEL); + if (psta == NULL) { + res = _FAIL; + RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, + "rtw_alloc_stainfo23a fail\n"); + return res; + } + /* default broadcast & multicast use macid 1 */ + psta->mac_id = 1; + + ptxservq = &psta->sta_xmitpriv.be_q; + return _SUCCESS; +} + +struct sta_info *rtw_get_bcmc_stainfo23a(struct rtw_adapter *padapter) +{ + struct sta_info *psta; + struct sta_priv *pstapriv = &padapter->stapriv; + + psta = rtw_get_stainfo23a(pstapriv, bc_addr); + return psta; +} + +bool rtw_access_ctrl23a(struct rtw_adapter *padapter, u8 *mac_addr) +{ + bool res = true; +#ifdef CONFIG_8723AU_AP_MODE + struct list_head *plist, *phead; + struct rtw_wlan_acl_node *paclnode; + bool match = false; + struct sta_priv *pstapriv = &padapter->stapriv; + struct wlan_acl_pool *pacl_list = &pstapriv->acl_list; + struct rtw_queue *pacl_node_q = &pacl_list->acl_node_q; + + spin_lock_bh(&pacl_node_q->lock); + phead = get_list_head(pacl_node_q); + + list_for_each(plist, phead) { + paclnode = container_of(plist, struct rtw_wlan_acl_node, list); + + if (ether_addr_equal(paclnode->addr, mac_addr)) { + 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; +#endif + return res; +} |