1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
|
/*
* Copyright 2002-2005, Devicescape Software, Inc.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef STA_INFO_H
#define STA_INFO_H
#include <linux/list.h>
#include <linux/types.h>
#include <linux/if_ether.h>
#include <linux/kref.h>
#include "ieee80211_key.h"
/* Stations flags (struct sta_info::flags) */
#define WLAN_STA_AUTH BIT(0)
#define WLAN_STA_ASSOC BIT(1)
#define WLAN_STA_PS BIT(2)
#define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
#define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
#define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
* controlling whether STA is authorized to
* send and receive non-IEEE 802.1X frames
*/
#define WLAN_STA_SHORT_PREAMBLE BIT(7)
#define WLAN_STA_WME BIT(9)
#define WLAN_STA_WDS BIT(27)
struct sta_info {
struct kref kref;
struct list_head list;
struct sta_info *hnext; /* next entry in hash table list */
struct ieee80211_local *local;
u8 addr[ETH_ALEN];
u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
u32 flags; /* WLAN_STA_ */
struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
* power saving state */
int pspoll; /* whether STA has send a PS Poll frame */
struct sk_buff_head tx_filtered; /* buffer of TX frames that were
* already given to low-level driver,
* but were filtered */
int clear_dst_mask;
unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
unsigned long rx_bytes, tx_bytes;
unsigned long tx_retry_failed, tx_retry_count;
unsigned long tx_filtered_count;
unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
unsigned long last_rx;
u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
int txrate; /* index in local->curr_rates */
int last_txrate; /* last rate used to send a frame to this STA */
int last_nonerp_idx;
struct net_device *dev; /* which net device is this station associated
* to */
struct ieee80211_key *key;
u32 tx_num_consecutive_failures;
u32 tx_num_mpdu_ok;
u32 tx_num_mpdu_fail;
struct rate_control_ref *rate_ctrl;
void *rate_ctrl_priv;
/* last received seq/frag number from this STA (per RX queue) */
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
unsigned long num_duplicates; /* number of duplicate frames received
* from this STA */
unsigned long tx_fragments; /* number of transmitted MPDUs */
unsigned long rx_fragments; /* number of received MPDUs */
unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
int last_rssi; /* RSSI of last received frame from this STA */
int last_signal; /* signal of last received frame from this STA */
int last_noise; /* noise of last received frame from this STA */
int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
unsigned long last_ack;
int channel_use;
int channel_use_raw;
u8 antenna_sel_tx;
u8 antenna_sel_rx;
int key_idx_compression; /* key table index for compression and TX
* filtering; used only if sta->key is not
* set */
int assoc_ap; /* whether this is an AP that we are
* associated with as a client */
#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
#endif /* CONFIG_MAC80211_DEBUG_COUNTERS */
int vlan_id;
u16 listen_interval;
};
/* Maximum number of concurrently registered stations */
#define MAX_STA_COUNT 2007
#define STA_HASH_SIZE 256
#define STA_HASH(sta) (sta[5])
/* Maximum number of frames to buffer per power saving station */
#define STA_MAX_TX_BUFFER 128
/* Minimum buffered frame expiry time. If STA uses listen interval that is
* smaller than this value, the minimum value here is used instead. */
#define STA_TX_BUFFER_EXPIRE (10 * HZ)
/* How often station data is cleaned up (e.g., expiration of buffered frames)
*/
#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
int sta_info_min_txrate_get(struct ieee80211_local *local);
void sta_info_put(struct sta_info *sta);
struct sta_info * sta_info_add(struct ieee80211_local *local,
struct net_device *dev, u8 *addr, gfp_t gfp);
void sta_info_free(struct sta_info *sta, int locked);
void sta_info_init(struct ieee80211_local *local);
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
void sta_info_remove_aid_ptr(struct sta_info *sta);
void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
#endif /* STA_INFO_H */
|
