LXR linux/drivers/staging/rtl8712/sta

   1/******************************************************************************
   2 *
   3 * Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
   4 *
   5 * This program is free software; you can redistribute it and/or modify it
   6 * under the terms of version 2 of the GNU General Public License as
   7 * published by the Free Software Foundation.
   8 *
   9 * This program is distributed in the hope that it will be useful, but WITHOUT
  10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
  12 * more details.
  13 *
  14 * You should have received a copy of the GNU General Public License along with
  15 * this program; if not, write to the Free Software Foundation, Inc.,
  16 * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
  17 *
  18 * Modifications for inclusion into the Linux staging tree are
  19 * Copyright(c) 2010 Larry Finger. All rights reserved.
  20 *
  21 * Contact information:
  22 * WLAN FAE <wlanfae@realtek.com>
  23 * Larry Finger <Larry.Finger@lwfinger.net>
  24 *
  25 ******************************************************************************/
  26#ifndef __STA_INFO_H_
  27#define __STA_INFO_H_
  28
  29#include "osdep_service.h"
  30#include "drv_types.h"
  31#include "wifi.h"
  32
  33#define NUM_STA 32
  34#define NUM_ACL 64
  35
  36
  37/* if mode ==0, then the sta is allowed once the addr is hit.
  38 * if mode ==1, then the sta is rejected once the addr is non-hit.
  39 */
  40struct wlan_acl_node {
  41        struct list_head list;
  42        u8       addr[ETH_ALEN];
  43        u8       mode;
  44};
  45
  46struct wlan_acl_pool {
  47        struct wlan_acl_node aclnode[NUM_ACL];
  48};
  49
  50struct  stainfo_stats {
  51
  52        uint    rx_pkts;
  53        uint    rx_bytes;
  54        u64     tx_pkts;
  55        uint    tx_bytes;
  56};
  57
  58struct sta_info {
  59        spinlock_t lock;
  60        struct list_head list; /*free_sta_queue*/
  61        struct list_head hash_list; /*sta_hash*/
  62        struct sta_xmit_priv sta_xmitpriv;
  63        struct sta_recv_priv sta_recvpriv;
  64        uint state;
  65        uint aid;
  66        uint    mac_id;
  67        uint    qos_option;
  68        u8      hwaddr[ETH_ALEN];
  69        uint    ieee8021x_blocked;      /*0: allowed, 1:blocked */
  70        uint    XPrivacy; /*aes, tkip...*/
  71        union Keytype   tkiptxmickey;
  72        union Keytype   tkiprxmickey;
  73        union Keytype   x_UncstKey;
  74        union pn48              txpn;   /* PN48 used for Unicast xmit.*/
  75        union pn48              rxpn;   /* PN48 used for Unicast recv.*/
  76        u8      bssrateset[16];
  77        uint    bssratelen;
  78        s32  rssi;
  79        s32     signal_quality;
  80        struct stainfo_stats sta_stats;
  81        /*for A-MPDU Rx reordering buffer control */
  82        struct recv_reorder_ctrl recvreorder_ctrl[16];
  83        struct ht_priv  htpriv;
  84        /* Notes:
  85         * STA_Mode:
  86         * curr_network(mlme_priv/security_priv/qos/ht)
  87         *   + sta_info: (STA & AP) CAP/INFO
  88         * scan_q: AP CAP/INFO
  89         * AP_Mode:
  90         * curr_network(mlme_priv/security_priv/qos/ht) : AP CAP/INFO
  91         * sta_info: (AP & STA) CAP/INFO
  92         */
  93        struct list_head asoc_list;
  94        struct list_head auth_list;
  95        unsigned int expire_to;
  96        unsigned int auth_seq;
  97        unsigned int authalg;
  98        unsigned char chg_txt[128];
  99        unsigned int tx_ra_bitmap;
 100};
 101
 102struct  sta_priv {
 103        u8 *pallocated_stainfo_buf;
 104        u8 *pstainfo_buf;
 105        struct  __queue free_sta_queue;
 106        spinlock_t sta_hash_lock;
 107        struct list_head sta_hash[NUM_STA];
 108        int asoc_sta_count;
 109        struct  __queue sleep_q;
 110        struct  __queue wakeup_q;
 111        struct _adapter *padapter;
 112        struct list_head asoc_list;
 113        struct list_head auth_list;
 114        unsigned int auth_to;  /* sec, time to expire in authenticating. */
 115        unsigned int assoc_to; /* sec, time to expire before associating. */
 116        unsigned int expire_to; /* sec , time to expire after associated. */
 117};
 118
 119static inline u32 wifi_mac_hash(u8 *mac)
 120{
 121        u32 x;
 122
 123        x = mac[0];
 124        x = (x << 2) ^ mac[1];
 125        x = (x << 2) ^ mac[2];
 126        x = (x << 2) ^ mac[3];
 127        x = (x << 2) ^ mac[4];
 128        x = (x << 2) ^ mac[5];
 129        x ^= x >> 8;
 130        x  = x & (NUM_STA - 1);
 131        return x;
 132}
 133
 134u32 _r8712_init_sta_priv(struct sta_priv *pstapriv);
 135u32 _r8712_free_sta_priv(struct sta_priv *pstapriv);
 136struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv,
 137                                     u8 *hwaddr);
 138void r8712_free_stainfo(struct _adapter *padapter , struct sta_info *psta);
 139void r8712_free_all_stainfo(struct _adapter *padapter);
 140struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr);
 141void r8712_init_bcmc_stainfo(struct _adapter *padapter);
 142struct sta_info *r8712_get_bcmc_stainfo(struct _adapter *padapter);
 143u8 r8712_access_ctrl(struct wlan_acl_pool *pacl_list, u8 *mac_addr);
 144
 145#endif /* _STA_INFO_H_ */
 146
 147