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  */
40 struct wlan_acl_node {
41 	struct list_head list;
42 	u8       addr[ETH_ALEN];
43 	u8       mode;
44 };
45 
46 struct wlan_acl_pool {
47 	struct wlan_acl_node aclnode[NUM_ACL];
48 };
49 
50 struct	stainfo_stats {
51 
52 	uint	rx_pkts;
53 	uint	rx_bytes;
54 	u64	tx_pkts;
55 	uint	tx_bytes;
56 };
57 
58 struct 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 
102 struct	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 
119 static 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 
134 u32 _r8712_init_sta_priv(struct sta_priv *pstapriv);
135 u32 _r8712_free_sta_priv(struct sta_priv *pstapriv);
136 struct sta_info *r8712_alloc_stainfo(struct sta_priv *pstapriv,
137 				     u8 *hwaddr);
138 void r8712_free_stainfo(struct _adapter *padapter, struct sta_info *psta);
139 void r8712_free_all_stainfo(struct _adapter *padapter);
140 struct sta_info *r8712_get_stainfo(struct sta_priv *pstapriv, u8 *hwaddr);
141 void r8712_init_bcmc_stainfo(struct _adapter *padapter);
142 struct sta_info *r8712_get_bcmc_stainfo(struct _adapter *padapter);
143 u8 r8712_access_ctrl(struct wlan_acl_pool *pacl_list, u8 *mac_addr);
144 
145 #endif /* _STA_INFO_H_ */
146 
147