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- /******************************************************************************
- *
- * 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.
- *
- * You should have received a copy of the GNU General Public License along with
- * this program; if not, write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
- *
- *
- ******************************************************************************/
- #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 <linux/vmalloc.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);
- #ifdef CONFIG_88EU_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->under_exist_checking = 0;
- psta->keep_alive_trycnt = 0;
- #endif /* CONFIG_88EU_AP_MODE */
- }
- 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++;
- }
- #ifdef CONFIG_88EU_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 = 3; /* 3*2 = 6 sec */
- pstapriv->max_num_sta = NUM_STA;
- #endif
- return _SUCCESS;
- }
- inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta)
- {
- int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info);
- if (!stainfo_offset_valid(offset))
- DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
- return offset;
- }
- inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset)
- {
- if (!stainfo_offset_valid(offset))
- DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
- return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info));
- }
- u32 _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];
- del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
- }
- }
- }
- spin_unlock_bh(&pstapriv->sta_hash_lock);
- /*===============================*/
- if (pstapriv->pallocated_stainfo_buf)
- vfree(pstapriv->pallocated_stainfo_buf);
- }
- return _SUCCESS;
- }
- 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);
- RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index=%x", index));
- if (index >= NUM_STA) {
- RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: 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);
- 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_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);
- RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
- ("\n free number_%d stainfo with hwaddr=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n",
- pstapriv->asoc_sta_count, psta->hwaddr[0], psta->hwaddr[1],
- psta->hwaddr[2], psta->hwaddr[3], psta->hwaddr[4],
- psta->hwaddr[5]));
- 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);
- 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 *prhdr;
- 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];
- 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)) {
- prhdr = container_of(plist, struct recv_frame, list);
- prframe = (struct recv_frame *)prhdr;
- 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))
- rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false);
- #ifdef CONFIG_88EU_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 &= ~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;
- #endif /* CONFIG_88EU_AP_MODE */
- 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)) == true) {
- /* 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;
- RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("rtw_alloc_stainfo 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;
- #ifdef CONFIG_88EU_AP_MODE
- 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;
- #endif
- return res;
- }
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