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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.
*
******************************************************************************/
#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;
struct sta_info *psta, *ptmp;
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_entry_safe(psta, ptmp, phead, hash_list) {
int i;
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 *phead;
struct sta_info *psta, *ptmp;
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_entry_safe(psta, ptmp, phead, 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 *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_entry(psta, phead, 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 *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_entry(paclnode, phead, 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;
}
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