2 * Copyright 2002-2005, Devicescape Software, Inc.
4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License version 2 as
6 * published by the Free Software Foundation.
12 /* Stations flags (struct sta_info::flags) */
13 #define WLAN_STA_AUTH BIT(0)
14 #define WLAN_STA_ASSOC BIT(1)
15 #define WLAN_STA_PS BIT(2)
16 #define WLAN_STA_TIM BIT(3) /* TIM bit is on for PS stations */
17 #define WLAN_STA_PERM BIT(4) /* permanent; do not remove entry on expiration */
18 #define WLAN_STA_AUTHORIZED BIT(5) /* If 802.1X is used, this flag is
19 * controlling whether STA is authorized to
20 * send and receive non-IEEE 802.1X frames
22 #define WLAN_STA_SHORT_PREAMBLE BIT(7)
23 #define WLAN_STA_WME BIT(9)
24 #define WLAN_STA_XR BIT(26)
25 #define WLAN_STA_WDS BIT(27)
29 struct list_head list;
30 struct sta_info *hnext; /* next entry in hash table list */
31 atomic_t users; /* number of users (do not remove if > 0) */
34 u16 aid; /* STA's unique AID (1..2007), 0 = not yet assigned */
35 u32 flags; /* WLAN_STA_ */
37 struct sk_buff_head ps_tx_buf; /* buffer of TX frames for station in
38 * power saving state */
39 int pspoll; /* whether STA has send a PS Poll frame */
40 struct sk_buff_head tx_filtered; /* buffer of TX frames that were
41 * already given to low-level driver,
42 * but were filtered */
45 unsigned long rx_packets, tx_packets; /* number of RX/TX MSDUs */
46 unsigned long rx_bytes, tx_bytes;
47 unsigned long tx_retry_failed, tx_retry_count;
48 unsigned long tx_filtered_count;
50 unsigned int wep_weak_iv_count; /* number of RX frames with weak IV */
52 unsigned long last_rx;
53 u32 supp_rates; /* bitmap of supported rates in local->curr_rates */
54 int txrate; /* index in local->curr_rates */
55 int last_txrate; /* last rate used to send a frame to this STA */
58 struct net_device *dev; /* which net device is this station associated
61 struct ieee80211_key *key;
63 u32 tx_num_consecutive_failures;
69 /* last received seq/frag number from this STA (per RX queue) */
70 u16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
71 unsigned long num_duplicates; /* number of duplicate frames received
73 unsigned long tx_fragments; /* number of transmitted MPDUs */
74 unsigned long rx_fragments; /* number of received MPDUs */
75 unsigned long rx_dropped; /* number of dropped MPDUs from this STA */
77 int last_rssi; /* RSSI of last received frame from this STA */
78 int last_ack_rssi[3]; /* RSSI of last received ACKs from this STA */
79 unsigned long last_ack;
86 int key_idx_compression; /* key table index for compression and TX
87 * filtering; used only if sta->key is not
90 int proc_entry_added:1;
91 int assoc_ap:1; /* whether this is an AP that we are associated with
94 #ifdef CONFIG_HOSTAPD_WPA_TESTING
96 #endif /* CONFIG_HOSTAPD_WPA_TESTING */
98 #ifdef CONFIG_IEEE80211_DEBUG_COUNTERS
99 unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
100 unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
101 #endif /* CONFIG_IEEE80211_DEBUG_COUNTERS */
107 /* Maximum number of concurrently registered stations */
108 #define MAX_STA_COUNT 2007
110 /* Maximum number of AIDs to use for STAs; must be 2007 or lower
111 * (IEEE 802.11 beacon format limitation) */
112 #define MAX_AID_TABLE_SIZE 2007
114 #define STA_HASH_SIZE 256
115 #define STA_HASH(sta) (sta[5])
118 /* Maximum number of frames to buffer per power saving station */
119 #define STA_MAX_TX_BUFFER 128
121 /* Buffered frame expiry time */
122 #define STA_TX_BUFFER_EXPIRE (10 * HZ)
124 /* How often station data is cleaned up (e.g., expiration of buffered frames)
126 #define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
129 struct sta_info * sta_info_get(struct ieee80211_local *local, u8 *addr);
130 int sta_info_min_txrate_get(struct ieee80211_local *local);
131 void sta_info_release(struct ieee80211_local *local, struct sta_info *sta);
132 struct sta_info * sta_info_add(struct ieee80211_local *local,
133 struct net_device *dev, u8 *addr);
134 void sta_info_free(struct ieee80211_local *local, struct sta_info *sta,
136 void sta_info_init(struct ieee80211_local *local);
137 void sta_info_start(struct ieee80211_local *local);
138 void sta_info_stop(struct ieee80211_local *local);
139 void sta_info_remove_aid_ptr(struct sta_info *sta);
140 void sta_info_flush(struct ieee80211_local *local, struct net_device *dev);
142 #endif /* STA_INFO_H */