#include <linux/list.h>
#include <linux/types.h>
#include <linux/if_ether.h>
+#include <linux/workqueue.h>
#include "key.h"
/**
*
* @WLAN_STA_AUTH: Station is authenticated.
* @WLAN_STA_ASSOC: Station is associated.
- * @WLAN_STA_PS: Station is in power-save mode
+ * @WLAN_STA_PS_STA: Station is in power-save mode
* @WLAN_STA_AUTHORIZED: Station is authorized to send/receive traffic.
* This bit is always checked so needs to be enabled for all stations
* when virtual port control is not in use.
* @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
* @WLAN_STA_WME: Station is a QoS-STA.
* @WLAN_STA_WDS: Station is one of our WDS peers.
- * @WLAN_STA_PSPOLL: Station has just PS-polled us.
* @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
* IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
* frame to this station is transmitted.
+ * @WLAN_STA_MFP: Management frame protection is used with this STA.
+ * @WLAN_STA_SUSPEND: Set/cleared during a suspend/resume cycle.
+ * Used to deny ADDBA requests (both TX and RX).
+ * @WLAN_STA_PS_DRIVER: driver requires keeping this station in
+ * power-save mode logically to flush frames that might still
+ * be in the queues
+ * @WLAN_STA_PSPOLL: Station sent PS-poll while driver was keeping
+ * station in power-save mode, reply when the driver unblocks.
*/
enum ieee80211_sta_info_flags {
WLAN_STA_AUTH = 1<<0,
WLAN_STA_ASSOC = 1<<1,
- WLAN_STA_PS = 1<<2,
+ WLAN_STA_PS_STA = 1<<2,
WLAN_STA_AUTHORIZED = 1<<3,
WLAN_STA_SHORT_PREAMBLE = 1<<4,
WLAN_STA_ASSOC_AP = 1<<5,
WLAN_STA_WME = 1<<6,
WLAN_STA_WDS = 1<<7,
- WLAN_STA_PSPOLL = 1<<8,
WLAN_STA_CLEAR_PS_FILT = 1<<9,
+ WLAN_STA_MFP = 1<<10,
+ WLAN_STA_SUSPEND = 1<<11,
+ WLAN_STA_PS_DRIVER = 1<<12,
+ WLAN_STA_PSPOLL = 1<<13,
};
#define STA_TID_NUM 16
#define HT_AGG_STATE_OPERATIONAL (HT_ADDBA_REQUESTED_MSK | \
HT_ADDBA_DRV_READY_MSK | \
HT_ADDBA_RECEIVED_MSK)
-#define HT_AGG_STATE_DEBUGFS_CTL BIT(7)
/**
* struct tid_ampdu_tx - TID aggregation information (Tx).
*
* @addba_resp_timer: timer for peer's response to addba request
+ * @pending: pending frames queue -- use sta's spinlock to protect
* @ssn: Starting Sequence Number expected to be aggregated.
* @dialog_token: dialog token for aggregation session
*/
struct tid_ampdu_tx {
struct timer_list addba_resp_timer;
+ struct sk_buff_head pending;
u16 ssn;
u8 dialog_token;
};
* struct tid_ampdu_rx - TID aggregation information (Rx).
*
* @reorder_buf: buffer to reorder incoming aggregated MPDUs
+ * @reorder_time: jiffies when skb was added
* @session_timer: check if peer keeps Tx-ing on the TID (by timeout value)
* @head_seq_num: head sequence number in reordering buffer.
* @stored_mpdu_num: number of MPDUs in reordering buffer
* @ssn: Starting Sequence Number expected to be aggregated.
* @buf_size: buffer size for incoming A-MPDUs
- * @timeout: reset timer value.
+ * @timeout: reset timer value (in TUs).
* @dialog_token: dialog token for aggregation session
+ * @shutdown: this session is being shut down due to STA removal
*/
struct tid_ampdu_rx {
struct sk_buff **reorder_buf;
+ unsigned long *reorder_time;
struct timer_list session_timer;
u16 head_seq_num;
u16 stored_mpdu_num;
u16 buf_size;
u16 timeout;
u8 dialog_token;
+ bool shutdown;
};
/**
* @list: global linked list entry
* @hnext: hash table linked list pointer
* @local: pointer to the global information
- * @sdata: TBD
- * @key: TBD
- * @rate_ctrl: TBD
- * @rate_ctrl_priv: TBD
+ * @sdata: virtual interface this station belongs to
+ * @key: peer key negotiated with this station, if any
+ * @rate_ctrl: rate control algorithm reference
+ * @rate_ctrl_priv: rate control private per-STA pointer
+ * @last_tx_rate: rate used for last transmit, to report to userspace as
+ * "the" transmit rate
* @lock: used for locking all fields that require locking, see comments
* in the header file.
* @flaglock: spinlock for flags accesses
- * @ht_info: HT capabilities of this STA
- * @supp_rates: Bitmap of supported rates (per band)
- * @addr: MAC address of this STA
- * @aid: STA's unique AID (1..2007, 0 = not assigned yet),
- * only used in AP (and IBSS?) mode
- * @listen_interval: TBD
- * @pin_status: TBD
+ * @drv_unblock_wk: used for driver PS unblocking
+ * @listen_interval: listen interval of this station, when we're acting as AP
+ * @pin_status: used internally for pinning a STA struct into memory
* @flags: STA flags, see &enum ieee80211_sta_info_flags
* @ps_tx_buf: buffer of frames to transmit to this station
* when it leaves power saving state
* power saving state
* @rx_packets: Number of MSDUs received from this STA
* @rx_bytes: Number of bytes received from this STA
- * @wep_weak_iv_count: TBD
- * @last_rx: TBD
+ * @wep_weak_iv_count: number of weak WEP IVs received from this station
+ * @last_rx: time (in jiffies) when last frame was received from this STA
* @num_duplicates: number of duplicate frames received from this STA
* @rx_fragments: number of received MPDUs
* @rx_dropped: number of dropped MPDUs from this STA
* @last_signal: signal of last received frame from this STA
- * @last_qual: qual of last received frame from this STA
* @last_noise: noise of last received frame from this STA
* @last_seq_ctrl: last received seq/frag number from this STA (per RX queue)
- * @wme_rx_queue: TBD
- * @tx_filtered_count: TBD
- * @tx_retry_failed: TBD
- * @tx_retry_count: TBD
- * @tx_num_consecutive_failures: TBD
- * @tx_num_mpdu_ok: TBD
- * @tx_num_mpdu_fail: TBD
+ * @tx_filtered_count: number of frames the hardware filtered for this STA
+ * @tx_retry_failed: number of frames that failed retry
+ * @tx_retry_count: total number of retries for frames to this STA
* @fail_avg: moving percentage of failed MSDUs
* @tx_packets: number of RX/TX MSDUs
- * @tx_bytes: TBD
+ * @tx_bytes: number of bytes transmitted to this STA
* @tx_fragments: number of transmitted MPDUs
- * @txrate_idx: TBD
- * @last_txrate_idx: TBD
- * @tid_seq: TBD
- * @wme_tx_queue: TBD
- * @ampdu_mlme: TBD
+ * @tid_seq: per-TID sequence numbers for sending to this STA
+ * @ampdu_mlme: A-MPDU state machine state
* @timer_to_tid: identity mapping to ID timers
- * @tid_to_tx_q: map tid to tx queue
* @llid: Local link ID
* @plid: Peer link ID
* @reason: Cancel reason on PLINK_HOLDING state
* @plink_retries: Retries in establishment
- * @ignore_plink_timer: TBD
- * @plink_state plink_state: TBD
- * @plink_timeout: TBD
- * @plink_timer: TBD
+ * @ignore_plink_timer: ignore the peer-link timer (used internally)
+ * @plink_state: peer link state
+ * @plink_timeout: timeout of peer link
+ * @plink_timer: peer link watch timer
+ * @plink_timer_was_running: used by suspend/resume to restore timers
* @debugfs: debug filesystem info
+ * @sta: station information we share with the driver
+ * @dead: set to true when sta is unlinked
*/
struct sta_info {
/* General information, mostly static */
void *rate_ctrl_priv;
spinlock_t lock;
spinlock_t flaglock;
- struct ieee80211_ht_info ht_info;
- u64 supp_rates[IEEE80211_NUM_BANDS];
- u8 addr[ETH_ALEN];
- u16 aid;
+
+ struct work_struct drv_unblock_wk;
+
u16 listen_interval;
+ bool dead;
+
/*
* for use by the internal lifetime management,
* see __sta_info_unlink
unsigned long rx_fragments;
unsigned long rx_dropped;
int last_signal;
- int last_qual;
int last_noise;
__le16 last_seq_ctrl[NUM_RX_DATA_QUEUES];
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_rx_queue[NUM_RX_DATA_QUEUES];
-#endif
/* Updated from TX status path only, no locking requirements */
unsigned long tx_filtered_count;
unsigned long tx_retry_failed, tx_retry_count;
- /* TODO: update in generic code not rate control? */
- u32 tx_num_consecutive_failures;
- u32 tx_num_mpdu_ok;
- u32 tx_num_mpdu_fail;
/* moving percentage of failed MSDUs */
unsigned int fail_avg;
unsigned long tx_packets;
unsigned long tx_bytes;
unsigned long tx_fragments;
- int txrate_idx;
- int last_txrate_idx;
+ struct ieee80211_tx_rate last_tx_rate;
u16 tid_seq[IEEE80211_QOS_CTL_TID_MASK + 1];
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- unsigned int wme_tx_queue[NUM_RX_DATA_QUEUES];
-#endif
/*
* Aggregation information, locked with lock.
*/
struct sta_ampdu_mlme ampdu_mlme;
u8 timer_to_tid[STA_TID_NUM];
- u8 tid_to_tx_q[STA_TID_NUM];
#ifdef CONFIG_MAC80211_MESH
/*
__le16 reason;
u8 plink_retries;
bool ignore_plink_timer;
+ bool plink_timer_was_running;
enum plink_state plink_state;
u32 plink_timeout;
struct timer_list plink_timer;
#ifdef CONFIG_MAC80211_DEBUGFS
struct sta_info_debugfsdentries {
struct dentry *dir;
- struct dentry *flags;
- struct dentry *num_ps_buf_frames;
- struct dentry *inactive_ms;
- struct dentry *last_seq_ctrl;
-#ifdef CONFIG_MAC80211_DEBUG_COUNTERS
- struct dentry *wme_rx_queue;
- struct dentry *wme_tx_queue;
-#endif
- struct dentry *agg_status;
+ bool add_has_run;
} debugfs;
#endif
+
+ /* keep last! */
+ struct ieee80211_sta sta;
};
static inline enum plink_state sta_plink_state(struct sta_info *sta)
spin_unlock_irqrestore(&sta->flaglock, irqfl);
}
-static inline void set_and_clear_sta_flags(struct sta_info *sta,
- const u32 set, const u32 clear)
-{
- unsigned long irqfl;
-
- spin_lock_irqsave(&sta->flaglock, irqfl);
- sta->flags |= set;
- sta->flags &= ~clear;
- spin_unlock_irqrestore(&sta->flaglock, irqfl);
-}
-
static inline u32 test_sta_flags(struct sta_info *sta, const u32 flags)
{
u32 ret;
}
-/* Maximum number of concurrently registered stations */
-#define MAX_STA_COUNT 2007
#define STA_HASH_SIZE 256
#define STA_HASH(sta) (sta[5])
#define STA_INFO_CLEANUP_INTERVAL (10 * HZ)
/*
- * Get a STA info, must have be under RCU read lock.
+ * Get a STA info, must be under RCU read lock.
*/
-struct sta_info *sta_info_get(struct ieee80211_local *local, u8 *addr);
+struct sta_info *sta_info_get(struct ieee80211_sub_if_data *sdata,
+ const u8 *addr);
+
+struct sta_info *sta_info_get_bss(struct ieee80211_sub_if_data *sdata,
+ const u8 *addr);
+
+static inline
+void for_each_sta_info_type_check(struct ieee80211_local *local,
+ const u8 *addr,
+ struct sta_info *sta,
+ struct sta_info *nxt)
+{
+}
+
+#define for_each_sta_info(local, _addr, sta, nxt) \
+ for ( /* initialise loop */ \
+ sta = rcu_dereference(local->sta_hash[STA_HASH(_addr)]),\
+ nxt = sta ? rcu_dereference(sta->hnext) : NULL; \
+ /* typecheck */ \
+ for_each_sta_info_type_check(local, (_addr), sta, nxt), \
+ /* continue condition */ \
+ sta; \
+ /* advance loop */ \
+ sta = nxt, \
+ nxt = sta ? rcu_dereference(sta->hnext) : NULL \
+ ) \
+ /* compare address and run code only if it matches */ \
+ if (memcmp(sta->sta.addr, (_addr), ETH_ALEN) == 0)
+
/*
* Get STA info by index, BROKEN!
*/
-struct sta_info *sta_info_get_by_idx(struct ieee80211_local *local, int idx,
- struct net_device *dev);
+struct sta_info *sta_info_get_by_idx(struct ieee80211_sub_if_data *sdata,
+ int idx);
/*
* Create a new STA info, caller owns returned structure
* until sta_info_insert().
int sta_info_start(struct ieee80211_local *local);
void sta_info_stop(struct ieee80211_local *local);
int sta_info_flush(struct ieee80211_local *local,
- struct ieee80211_sub_if_data *sdata);
-void sta_info_flush_delayed(struct ieee80211_sub_if_data *sdata);
+ struct ieee80211_sub_if_data *sdata);
void ieee80211_sta_expire(struct ieee80211_sub_if_data *sdata,
unsigned long exp_time);
+void ieee80211_sta_ps_deliver_wakeup(struct sta_info *sta);
+void ieee80211_sta_ps_deliver_poll_response(struct sta_info *sta);
+
#endif /* STA_INFO_H */
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