// SPDX-License-Identifier: GPL-2.0
/******************************************************************************
*
* Copyright(c) 2007 - 2011 Realtek Corporation. All rights reserved.
*
******************************************************************************/
#include <drv_types.h>
void _rtw_init_stainfo(struct sta_info *psta);
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);
/* INIT_LIST_HEAD(&psta->asoc_list); */
/* INIT_LIST_HEAD(&psta->sleep_list); */
/* INIT_LIST_HEAD(&psta->wakeup_list); */
INIT_LIST_HEAD(&psta->sleep_q.queue);
spin_lock_init(&psta->sleep_q.lock);
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_PTR)(pstapriv->pallocated_stainfo_buf) & 3);
INIT_LIST_HEAD(&pstapriv->free_sta_queue.queue);
spin_lock_init(&pstapriv->free_sta_queue.lock);
spin_lock_init(&pstapriv->sta_hash_lock);
/* _rtw_init_queue(&pstapriv->asoc_q); */
pstapriv->asoc_sta_count = 0;
INIT_LIST_HEAD(&pstapriv->sleep_q.queue);
spin_lock_init(&pstapriv->sleep_q.lock);
INIT_LIST_HEAD(&pstapriv->wakeup_q.queue);
spin_lock_init(&pstapriv->wakeup_q.lock);
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)
{
int offset = (((u8 *)sta) - stapriv->pstainfo_buf)/sizeof(struct sta_info);
return offset;
}
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));
}
/* this function is used to free the memory of lock || sema for all stainfos */
void kfree_all_stainfo(struct sta_priv *pstapriv);
void kfree_all_stainfo(struct sta_priv *pstapriv)
{
struct list_head *plist, *phead;
spin_lock_bh(&pstapriv->sta_hash_lock);
phead = get_list_head(&pstapriv->free_sta_queue);
plist = get_next(phead);
while (phead != plist)
plist = get_next(plist);
spin_unlock_bh(&pstapriv->sta_hash_lock);
}
void kfree_sta_priv_lock(struct sta_priv *pstapriv);
void kfree_sta_priv_lock(struct sta_priv *pstapriv)
{
kfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
}
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]);
list_for_each(plist, phead) {
int i;
psta = list_entry(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);
/*===============================*/
kfree_sta_priv_lock(pstapriv);
vfree(pstapriv->pallocated_stainfo_buf);
}
return _SUCCESS;
}
/* struct sta_info *rtw_alloc_stainfo(_queue *pfree_sta_queue, unsigned char *hwaddr) */
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)); */
spin_lock_bh(&(pstapriv->sta_hash_lock));
if (list_empty(&pfree_sta_queue->queue)) {
/* spin_unlock_bh(&(pfree_sta_queue->lock)); */
spin_unlock_bh(&(pstapriv->sta_hash_lock));
return NULL;
} else {
psta = container_of(get_next(&pfree_sta_queue->queue), struct sta_info, list);
list_del_init(&(psta->list));
/* spin_unlock_bh(&(pfree_sta_queue->lock)); */
_rtw_init_stainfo(psta);
psta->padapter = pstapriv->padapter;
memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
index = wifi_mac_hash(hwaddr);
if (index >= NUM_STA) {
spin_unlock_bh(&(pstapriv->sta_hash_lock));
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 = (NR_RECVBUFF-2); */
preorder_ctrl->wsize_b = 64;/* 64; */
INIT_LIST_HEAD(&preorder_ctrl->pending_recvframe_queue.queue);
spin_lock_init(&preorder_ctrl->pending_recvframe_queue.lock);
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;
spin_unlock_bh(&(pstapriv->sta_hash_lock));
/* alloc mac id for non-bc/mc station, */
rtw_alloc_macid(pstapriv->padapter, psta);
}
exit:
return psta;
}
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;
struct hw_xmit *phwxmit;
if (!psta)
goto exit;
spin_lock_bh(&psta->lock);
psta->state &= ~_FW_LINKED;
spin_unlock_bh(&psta->lock);
pfree_sta_queue = &pstapriv->free_sta_queue;
pstaxmitpriv = &psta->sta_xmitpriv;
/* list_del_init(&psta->sleep_list); */
/* list_del_init(&psta->wakeup_list); */
spin_lock_bh(&pxmitpriv->lock);
rtw_free_xmitframe_queue(pxmitpriv, &psta->sleep_q);
psta->sleepq_len = 0;
/* vo */
/* spin_lock_bh(&(pxmitpriv->vo_pending.lock)); */
rtw_free_xmitframe_queue(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;
/* spin_unlock_bh(&(pxmitpriv->vo_pending.lock)); */
/* vi */
/* spin_lock_bh(&(pxmitpriv->vi_pending.lock)); */
rtw_free_xmitframe_queue(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;
/* spin_unlock_bh(&(pxmitpriv->vi_pending.lock)); */
/* be */
/* spin_lock_bh(&(pxmitpriv->be_pending.lock)); */
rtw_free_xmitframe_queue(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;
/* spin_unlock_bh(&(pxmitpriv->be_pending.lock)); */
/* bk */
/* spin_lock_bh(&(pxmitpriv->bk_pending.lock)); */
rtw_free_xmitframe_queue(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->bk_pending.lock)); */
spin_unlock_bh(&pxmitpriv->lock);
spin_lock_bh(&pstapriv->sta_hash_lock);
list_del_init(&psta->hash_list);
pstapriv->asoc_sta_count--;
spin_unlock_bh(&pstapriv->sta_hash_lock);
/* re-init sta_info; 20061114 will be init in alloc_stainfo */
/* _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;
union 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 = get_next(phead);
while (!list_empty(phead)) {
prframe = (union recv_frame *)plist;
plist = get_next(plist);
list_del_init(&(prframe->u.hdr.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);
/* release mac id for non-bc/mc station, */
rtw_release_macid(pstapriv->padapter, psta);
/*
spin_lock_bh(&pstapriv->asoc_list_lock);
list_del_init(&psta->asoc_list);
spin_unlock_bh(&pstapriv->asoc_list_lock);
*/
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, *tmp;
s32 index;
struct sta_info *psta = NULL;
struct sta_priv *pstapriv = &padapter->stapriv;
struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo(padapter);
LIST_HEAD(stainfo_free_list);
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, tmp, phead) {
psta = list_entry(plist, struct sta_info, hash_list);
if (pbcmc_stainfo != psta)
list_move(&psta->hash_list, &stainfo_free_list);
}
}
spin_unlock_bh(&pstapriv->sta_hash_lock);
list_for_each_safe(plist, tmp, &stainfo_free_list) {
psta = list_entry(plist, struct sta_info, hash_list);
rtw_free_stainfo(padapter, psta);
}
}
/* 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_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 = list_entry(plist, struct sta_info, hash_list);
if ((!memcmp(psta->hwaddr, addr, ETH_ALEN)))
/* if found the matched address */
break;
psta = NULL;
}
spin_unlock_bh(&pstapriv->sta_hash_lock);
return psta;
}
u32 rtw_init_bcmc_stainfo(struct adapter *padapter)
{
struct sta_info *psta;
NDIS_802_11_MAC_ADDRESS bcast_addr = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
struct sta_priv *pstapriv = &padapter->stapriv;
/* struct __queue *pstapending = &padapter->xmitpriv.bm_pending; */
psta = rtw_alloc_stainfo(pstapriv, bcast_addr);
if (!psta)
return _FAIL;
/* default broadcast & multicast use macid 1 */
psta->mac_id = 1;
return _SUCCESS;
}
struct sta_info *rtw_get_bcmc_stainfo(struct adapter *padapter)
{
struct sta_priv *pstapriv = &padapter->stapriv;
u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
return rtw_get_stainfo(pstapriv, bc_addr);
}
u8 rtw_access_ctrl(struct adapter *padapter, u8 *mac_addr)
{
bool res = true;
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 __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 = list_entry(plist, struct rtw_wlan_acl_node, list);
if (!memcmp(paclnode->addr, mac_addr, ETH_ALEN))
if (paclnode->valid == true) {
match = true;
break;
}
}
spin_unlock_bh(&(pacl_node_q->lock));
if (pacl_list->mode == 1) /* accept unless in deny list */
res = !match;
else if (pacl_list->mode == 2)/* deny unless in accept list */
res = match;
else
res = true;
return res;
}
Codebase Browser
linux