566 lines
14 KiB
C
566 lines
14 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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*
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******************************************************************************/
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#define _RTW_STA_MGT_C_
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#include <osdep_service.h>
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#include <drv_types.h>
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#include <recv_osdep.h>
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#include <xmit_osdep.h>
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#include <mlme_osdep.h>
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#include <sta_info.h>
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#include <linux/vmalloc.h>
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static void _rtw_init_stainfo(struct sta_info *psta)
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{
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memset((u8 *)psta, 0, sizeof (struct sta_info));
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spin_lock_init(&psta->lock);
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INIT_LIST_HEAD(&psta->list);
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INIT_LIST_HEAD(&psta->hash_list);
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_rtw_init_queue(&psta->sleep_q);
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psta->sleepq_len = 0;
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_rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
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_rtw_init_sta_recv_priv(&psta->sta_recvpriv);
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#ifdef CONFIG_88EU_AP_MODE
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INIT_LIST_HEAD(&psta->asoc_list);
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INIT_LIST_HEAD(&psta->auth_list);
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psta->expire_to = 0;
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psta->flags = 0;
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psta->capability = 0;
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psta->bpairwise_key_installed = false;
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#ifdef CONFIG_88EU_AP_MODE
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psta->nonerp_set = 0;
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psta->no_short_slot_time_set = 0;
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psta->no_short_preamble_set = 0;
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psta->no_ht_gf_set = 0;
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psta->no_ht_set = 0;
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psta->ht_20mhz_set = 0;
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#endif
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psta->under_exist_checking = 0;
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psta->keep_alive_trycnt = 0;
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#endif /* CONFIG_88EU_AP_MODE */
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}
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u32 _rtw_init_sta_priv(struct sta_priv *pstapriv)
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{
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struct sta_info *psta;
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s32 i;
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pstapriv->pallocated_stainfo_buf = vzalloc(sizeof(struct sta_info) * NUM_STA + 4);
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if (!pstapriv->pallocated_stainfo_buf)
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return _FAIL;
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pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
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((size_t)(pstapriv->pallocated_stainfo_buf) & 3);
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_rtw_init_queue(&pstapriv->free_sta_queue);
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spin_lock_init(&pstapriv->sta_hash_lock);
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pstapriv->asoc_sta_count = 0;
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_rtw_init_queue(&pstapriv->sleep_q);
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_rtw_init_queue(&pstapriv->wakeup_q);
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psta = (struct sta_info *)(pstapriv->pstainfo_buf);
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for (i = 0; i < NUM_STA; i++) {
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_rtw_init_stainfo(psta);
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INIT_LIST_HEAD(&(pstapriv->sta_hash[i]));
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list_add_tail(&psta->list, get_list_head(&pstapriv->free_sta_queue));
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psta++;
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}
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#ifdef CONFIG_88EU_AP_MODE
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pstapriv->sta_dz_bitmap = 0;
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pstapriv->tim_bitmap = 0;
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INIT_LIST_HEAD(&pstapriv->asoc_list);
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INIT_LIST_HEAD(&pstapriv->auth_list);
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spin_lock_init(&pstapriv->asoc_list_lock);
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spin_lock_init(&pstapriv->auth_list_lock);
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pstapriv->asoc_list_cnt = 0;
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pstapriv->auth_list_cnt = 0;
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pstapriv->auth_to = 3; /* 3*2 = 6 sec */
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pstapriv->assoc_to = 3;
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pstapriv->expire_to = 3; /* 3*2 = 6 sec */
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pstapriv->max_num_sta = NUM_STA;
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#endif
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return _SUCCESS;
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}
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inline int rtw_stainfo_offset(struct sta_priv *stapriv, struct sta_info *sta)
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{
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int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info);
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if (!stainfo_offset_valid(offset))
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DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
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return offset;
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}
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inline struct sta_info *rtw_get_stainfo_by_offset(struct sta_priv *stapriv, int offset)
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{
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if (!stainfo_offset_valid(offset))
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DBG_88E("%s invalid offset(%d), out of range!!!", __func__, offset);
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return (struct sta_info *)(stapriv->pstainfo_buf + offset * sizeof(struct sta_info));
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}
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/* this function is used to free the memory of lock || sema for all stainfos */
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static void rtw_mfree_all_stainfo(struct sta_priv *pstapriv)
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{
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struct list_head *plist, *phead;
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struct sta_info *psta = NULL;
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spin_lock_bh(&pstapriv->sta_hash_lock);
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phead = get_list_head(&pstapriv->free_sta_queue);
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plist = phead->next;
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while (phead != plist) {
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psta = container_of(plist, struct sta_info , list);
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plist = plist->next;
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}
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spin_unlock_bh(&pstapriv->sta_hash_lock);
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}
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static void rtw_mfree_sta_priv_lock(struct sta_priv *pstapriv)
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{
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rtw_mfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
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}
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u32 _rtw_free_sta_priv(struct sta_priv *pstapriv)
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{
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struct list_head *phead, *plist;
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struct sta_info *psta = NULL;
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struct recv_reorder_ctrl *preorder_ctrl;
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int index;
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if (pstapriv) {
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/* delete all reordering_ctrl_timer */
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spin_lock_bh(&pstapriv->sta_hash_lock);
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for (index = 0; index < NUM_STA; index++) {
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phead = &(pstapriv->sta_hash[index]);
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plist = phead->next;
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while (phead != plist) {
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int i;
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psta = container_of(plist, struct sta_info , hash_list);
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plist = plist->next;
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for (i = 0; i < 16; i++) {
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preorder_ctrl = &psta->recvreorder_ctrl[i];
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del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
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}
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}
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}
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spin_unlock_bh(&pstapriv->sta_hash_lock);
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/*===============================*/
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rtw_mfree_sta_priv_lock(pstapriv);
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if (pstapriv->pallocated_stainfo_buf)
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vfree(pstapriv->pallocated_stainfo_buf);
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}
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return _SUCCESS;
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}
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struct sta_info *rtw_alloc_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
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{
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s32 index;
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struct list_head *phash_list;
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struct sta_info *psta;
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struct __queue *pfree_sta_queue;
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struct recv_reorder_ctrl *preorder_ctrl;
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int i = 0;
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u16 wRxSeqInitialValue = 0xffff;
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pfree_sta_queue = &pstapriv->free_sta_queue;
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spin_lock_bh(&(pfree_sta_queue->lock));
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if (list_empty(&pfree_sta_queue->queue)) {
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spin_unlock_bh(&pfree_sta_queue->lock);
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psta = NULL;
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} else {
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psta = container_of((&pfree_sta_queue->queue)->next, struct sta_info, list);
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list_del_init(&(psta->list));
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spin_unlock_bh(&pfree_sta_queue->lock);
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_rtw_init_stainfo(psta);
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memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
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index = wifi_mac_hash(hwaddr);
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RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_, ("rtw_alloc_stainfo: index=%x", index));
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if (index >= NUM_STA) {
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RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_, ("ERROR => rtw_alloc_stainfo: index >= NUM_STA"));
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psta = NULL;
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goto exit;
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}
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phash_list = &(pstapriv->sta_hash[index]);
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spin_lock_bh(&(pstapriv->sta_hash_lock));
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list_add_tail(&psta->hash_list, phash_list);
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pstapriv->asoc_sta_count++;
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spin_unlock_bh(&pstapriv->sta_hash_lock);
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/* Commented by Albert 2009/08/13 */
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/* For the SMC router, the sequence number of first packet of WPS handshake will be 0. */
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/* 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. */
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/* So, we initialize the tid_rxseq variable as the 0xffff. */
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for (i = 0; i < 16; i++)
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memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i], &wRxSeqInitialValue, 2);
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RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
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("alloc number_%d stainfo with hwaddr = %pM\n",
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pstapriv->asoc_sta_count , hwaddr));
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init_addba_retry_timer(pstapriv->padapter, psta);
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/* for A-MPDU Rx reordering buffer control */
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for (i = 0; i < 16; i++) {
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preorder_ctrl = &psta->recvreorder_ctrl[i];
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preorder_ctrl->padapter = pstapriv->padapter;
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preorder_ctrl->enable = false;
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preorder_ctrl->indicate_seq = 0xffff;
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preorder_ctrl->wend_b = 0xffff;
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preorder_ctrl->wsize_b = 64;/* 64; */
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_rtw_init_queue(&preorder_ctrl->pending_recvframe_queue);
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rtw_init_recv_timer(preorder_ctrl);
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}
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/* init for DM */
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psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
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psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
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/* init for the sequence number of received management frame */
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psta->RxMgmtFrameSeqNum = 0xffff;
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}
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exit:
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return psta;
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}
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/* using pstapriv->sta_hash_lock to protect */
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u32 rtw_free_stainfo(struct adapter *padapter , struct sta_info *psta)
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{
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int i;
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struct __queue *pfree_sta_queue;
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struct recv_reorder_ctrl *preorder_ctrl;
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struct sta_xmit_priv *pstaxmitpriv;
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struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
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struct sta_priv *pstapriv = &padapter->stapriv;
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if (psta == NULL)
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goto exit;
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pfree_sta_queue = &pstapriv->free_sta_queue;
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pstaxmitpriv = &psta->sta_xmitpriv;
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spin_lock_bh(&pxmitpriv->lock);
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rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
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psta->sleepq_len = 0;
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rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
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list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
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rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
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list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
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rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
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list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
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rtw_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
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list_del_init(&(pstaxmitpriv->be_q.tx_pending));
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spin_unlock_bh(&pxmitpriv->lock);
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list_del_init(&psta->hash_list);
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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]));
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pstapriv->asoc_sta_count--;
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/* re-init sta_info; 20061114 */
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_rtw_init_sta_xmit_priv(&psta->sta_xmitpriv);
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_rtw_init_sta_recv_priv(&psta->sta_recvpriv);
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del_timer_sync(&psta->addba_retry_timer);
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/* for A-MPDU Rx reordering buffer control, cancel reordering_ctrl_timer */
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for (i = 0; i < 16; i++) {
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struct list_head *phead, *plist;
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struct recv_frame *prhdr;
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struct recv_frame *prframe;
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struct __queue *ppending_recvframe_queue;
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struct __queue *pfree_recv_queue = &padapter->recvpriv.free_recv_queue;
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preorder_ctrl = &psta->recvreorder_ctrl[i];
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del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
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ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue;
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spin_lock_bh(&ppending_recvframe_queue->lock);
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phead = get_list_head(ppending_recvframe_queue);
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plist = phead->next;
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while (!list_empty(phead)) {
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prhdr = container_of(plist, struct recv_frame, list);
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prframe = (struct recv_frame *)prhdr;
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plist = plist->next;
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list_del_init(&(prframe->list));
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rtw_free_recvframe(prframe, pfree_recv_queue);
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}
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spin_unlock_bh(&ppending_recvframe_queue->lock);
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}
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if (!(psta->state & WIFI_AP_STATE))
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rtw_hal_set_odm_var(padapter, HAL_ODM_STA_INFO, psta, false);
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#ifdef CONFIG_88EU_AP_MODE
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spin_lock_bh(&pstapriv->auth_list_lock);
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if (!list_empty(&psta->auth_list)) {
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list_del_init(&psta->auth_list);
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pstapriv->auth_list_cnt--;
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}
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spin_unlock_bh(&pstapriv->auth_list_lock);
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psta->expire_to = 0;
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psta->sleepq_ac_len = 0;
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psta->qos_info = 0;
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psta->max_sp_len = 0;
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psta->uapsd_bk = 0;
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psta->uapsd_be = 0;
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psta->uapsd_vi = 0;
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psta->uapsd_vo = 0;
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psta->has_legacy_ac = 0;
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pstapriv->sta_dz_bitmap &= ~BIT(psta->aid);
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pstapriv->tim_bitmap &= ~BIT(psta->aid);
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if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) {
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pstapriv->sta_aid[psta->aid - 1] = NULL;
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psta->aid = 0;
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}
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psta->under_exist_checking = 0;
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#endif /* CONFIG_88EU_AP_MODE */
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spin_lock_bh(&(pfree_sta_queue->lock));
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list_add_tail(&psta->list, get_list_head(pfree_sta_queue));
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spin_unlock_bh(&pfree_sta_queue->lock);
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exit:
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return _SUCCESS;
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}
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/* free all stainfo which in sta_hash[all] */
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void rtw_free_all_stainfo(struct adapter *padapter)
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{
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struct list_head *plist, *phead;
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s32 index;
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struct sta_info *psta = NULL;
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struct sta_priv *pstapriv = &padapter->stapriv;
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struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter);
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if (pstapriv->asoc_sta_count == 1)
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return;
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spin_lock_bh(&pstapriv->sta_hash_lock);
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for (index = 0; index < NUM_STA; index++) {
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phead = &(pstapriv->sta_hash[index]);
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plist = phead->next;
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while (phead != plist) {
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psta = container_of(plist, struct sta_info , hash_list);
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plist = plist->next;
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if (pbcmc_stainfo != psta)
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rtw_free_stainfo(padapter , psta);
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}
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}
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spin_unlock_bh(&pstapriv->sta_hash_lock);
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}
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/* any station allocated can be searched by hash list */
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struct sta_info *rtw_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
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{
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struct list_head *plist, *phead;
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struct sta_info *psta = NULL;
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u32 index;
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u8 *addr;
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u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
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if (hwaddr == NULL)
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return NULL;
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if (IS_MCAST(hwaddr))
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addr = bc_addr;
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else
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addr = hwaddr;
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index = wifi_mac_hash(addr);
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spin_lock_bh(&pstapriv->sta_hash_lock);
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phead = &(pstapriv->sta_hash[index]);
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plist = phead->next;
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while (phead != plist) {
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psta = container_of(plist, struct sta_info, hash_list);
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if ((!memcmp(psta->hwaddr, addr, ETH_ALEN)) == true) {
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/* if found the matched address */
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break;
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}
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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 == NULL) {
|
|
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;
|
|
}
|