--- /dev/null
+/******************************************************************************
+ * rtl871x_sta_mgt.c
+ *
+ * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
+ * Linux device driver for RTL8192SU
+ *
+ * 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
+ *
+ * Modifications for inclusion into the Linux staging tree are
+ * Copyright(c) 2010 Larry Finger. All rights reserved.
+ *
+ * Contact information:
+ * WLAN FAE <wlanfae@realtek.com>
+ * Larry Finger <Larry.Finger@lwfinger.net>
+ *
+ ******************************************************************************/
+
+#define _RTL871X_STA_MGT_C_
+
+#include "osdep_service.h"
+#include "drv_types.h"
+#include "recv_osdep.h"
+#include "xmit_osdep.h"
+#include "sta_info.h"
+
+static void _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);
+ _r8712_init_sta_xmit_priv(&psta->sta_xmitpriv);
+ _r8712_init_sta_recv_priv(&psta->sta_recvpriv);
+ INIT_LIST_HEAD(&psta->asoc_list);
+ INIT_LIST_HEAD(&psta->auth_list);
+}
+
+u32 _r8712_init_sta_priv(struct sta_priv *pstapriv)
+{
+ struct sta_info *psta;
+ s32 i;
+
+ pstapriv->pallocated_stainfo_buf = kmalloc(sizeof(struct sta_info) *
+ NUM_STA + 4, GFP_ATOMIC);
+ if (pstapriv->pallocated_stainfo_buf == NULL)
+ return _FAIL;
+ pstapriv->pstainfo_buf = pstapriv->pallocated_stainfo_buf + 4 -
+ ((addr_t)(pstapriv->pallocated_stainfo_buf) & 3);
+ _init_queue(&pstapriv->free_sta_queue);
+ spin_lock_init(&pstapriv->sta_hash_lock);
+ pstapriv->asoc_sta_count = 0;
+ _init_queue(&pstapriv->sleep_q);
+ _init_queue(&pstapriv->wakeup_q);
+ psta = (struct sta_info *)(pstapriv->pstainfo_buf);
+ for (i = 0; i < NUM_STA; i++) {
+ _init_stainfo(psta);
+ INIT_LIST_HEAD(&(pstapriv->sta_hash[i]));
+ list_add_tail(&psta->list, &pstapriv->free_sta_queue.queue);
+ psta++;
+ }
+ INIT_LIST_HEAD(&pstapriv->asoc_list);
+ INIT_LIST_HEAD(&pstapriv->auth_list);
+ return _SUCCESS;
+}
+
+/* this function is used to free the memory of lock || sema for all stainfos */
+static void mfree_all_stainfo(struct sta_priv *pstapriv)
+{
+ unsigned long irqL;
+ struct list_head *plist, *phead;
+
+ spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
+ phead = &pstapriv->free_sta_queue.queue;
+ plist = phead->next;
+ while ((end_of_queue_search(phead, plist)) == false)
+ plist = plist->next;
+
+ spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
+}
+
+
+static void mfree_sta_priv_lock(struct sta_priv *pstapriv)
+{
+ mfree_all_stainfo(pstapriv); /* be done before free sta_hash_lock */
+}
+
+u32 _r8712_free_sta_priv(struct sta_priv *pstapriv)
+{
+ if (pstapriv) {
+ mfree_sta_priv_lock(pstapriv);
+ kfree(pstapriv->pallocated_stainfo_buf);
+ }
+ return _SUCCESS;
+}
+
+struct sta_info *r8712_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;
+ unsigned long flags;
+
+ pfree_sta_queue = &pstapriv->free_sta_queue;
+ spin_lock_irqsave(&(pfree_sta_queue->lock), flags);
+ if (list_empty(&pfree_sta_queue->queue))
+ psta = NULL;
+ else {
+ psta = LIST_CONTAINOR(pfree_sta_queue->queue.next,
+ struct sta_info, list);
+ list_del_init(&(psta->list));
+ _init_stainfo(psta);
+ memcpy(psta->hwaddr, hwaddr, ETH_ALEN);
+ index = wifi_mac_hash(hwaddr);
+ if (index >= NUM_STA) {
+ 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);
+ /* 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->indicate_seq = 0xffff;
+ preorder_ctrl->wend_b = 0xffff;
+ preorder_ctrl->wsize_b = 64;
+ _init_queue(&preorder_ctrl->pending_recvframe_queue);
+ r8712_init_recv_timer(preorder_ctrl);
+ }
+ }
+exit:
+ spin_unlock_irqrestore(&(pfree_sta_queue->lock), flags);
+ return psta;
+}
+
+/* using pstapriv->sta_hash_lock to protect */
+void r8712_free_stainfo(struct _adapter *padapter, struct sta_info *psta)
+{
+ int i;
+ unsigned long irqL0;
+ 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 == NULL)
+ return;
+ pfree_sta_queue = &pstapriv->free_sta_queue;
+ pstaxmitpriv = &psta->sta_xmitpriv;
+ spin_lock_irqsave(&(pxmitpriv->vo_pending.lock), irqL0);
+ r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
+ list_del_init(&(pstaxmitpriv->vo_q.tx_pending));
+ spin_unlock_irqrestore(&(pxmitpriv->vo_pending.lock), irqL0);
+ spin_lock_irqsave(&(pxmitpriv->vi_pending.lock), irqL0);
+ r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
+ list_del_init(&(pstaxmitpriv->vi_q.tx_pending));
+ spin_unlock_irqrestore(&(pxmitpriv->vi_pending.lock), irqL0);
+ spin_lock_irqsave(&(pxmitpriv->bk_pending.lock), irqL0);
+ r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
+ list_del_init(&(pstaxmitpriv->bk_q.tx_pending));
+ spin_unlock_irqrestore(&(pxmitpriv->bk_pending.lock), irqL0);
+ spin_lock_irqsave(&(pxmitpriv->be_pending.lock), irqL0);
+ r8712_free_xmitframe_queue(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
+ list_del_init(&(pstaxmitpriv->be_q.tx_pending));
+ spin_unlock_irqrestore(&(pxmitpriv->be_pending.lock), irqL0);
+ list_del_init(&psta->hash_list);
+ pstapriv->asoc_sta_count--;
+ /* re-init sta_info; 20061114 */
+ _r8712_init_sta_xmit_priv(&psta->sta_xmitpriv);
+ _r8712_init_sta_recv_priv(&psta->sta_recvpriv);
+ /* for A-MPDU Rx reordering buffer control,
+ * cancel reordering_ctrl_timer */
+ for (i = 0; i < 16; i++) {
+ preorder_ctrl = &psta->recvreorder_ctrl[i];
+ del_timer(&preorder_ctrl->reordering_ctrl_timer);
+ }
+ spin_lock(&(pfree_sta_queue->lock));
+ /* insert into free_sta_queue; 20061114 */
+ list_add_tail(&psta->list, &pfree_sta_queue->queue);
+ spin_unlock(&(pfree_sta_queue->lock));
+}
+
+/* free all stainfo which in sta_hash[all] */
+void r8712_free_all_stainfo(struct _adapter *padapter)
+{
+ unsigned long irqL;
+ struct list_head *plist, *phead;
+ s32 index;
+ struct sta_info *psta = NULL;
+ struct sta_priv *pstapriv = &padapter->stapriv;
+ struct sta_info *pbcmc_stainfo = r8712_get_bcmc_stainfo(padapter);
+
+ if (pstapriv->asoc_sta_count == 1)
+ return;
+ spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
+ for (index = 0; index < NUM_STA; index++) {
+ phead = &(pstapriv->sta_hash[index]);
+ plist = phead->next;
+ while ((end_of_queue_search(phead, plist)) == false) {
+ psta = LIST_CONTAINOR(plist,
+ struct sta_info, hash_list);
+ plist = plist->next;
+ if (pbcmc_stainfo != psta)
+ r8712_free_stainfo(padapter, psta);
+ }
+ }
+ spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
+}
+
+/* any station allocated can be searched by hash list */
+struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr)
+{
+ unsigned long irqL;
+ struct list_head *plist, *phead;
+ struct sta_info *psta = NULL;
+ u32 index;
+
+ if (hwaddr == NULL)
+ return NULL;
+ index = wifi_mac_hash(hwaddr);
+ spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
+ phead = &(pstapriv->sta_hash[index]);
+ plist = phead->next;
+ while ((end_of_queue_search(phead, plist)) == false) {
+ psta = LIST_CONTAINOR(plist, struct sta_info, hash_list);
+ if ((!memcmp(psta->hwaddr, hwaddr, ETH_ALEN))) {
+ /* if found the matched address */
+ break;
+ }
+ psta = NULL;
+ plist = plist->next;
+ }
+ spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
+ return psta;
+}
+
+void r8712_init_bcmc_stainfo(struct _adapter *padapter)
+{
+ unsigned char bcast_addr[6] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
+ struct sta_priv *pstapriv = &padapter->stapriv;
+
+ r8712_alloc_stainfo(pstapriv, bcast_addr);
+}
+
+struct sta_info *r8712_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 = r8712_get_stainfo(pstapriv, bc_addr);
+ return psta;
+}
+
+
+u8 r8712_access_ctrl(struct wlan_acl_pool *pacl_list, u8 *mac_addr)
+{
+ return true;
+}
Code Review / kvmfornfv.git / blobdiff