ieee80211_var.h

madwifi上的atheros无线网卡驱动源码

	int (*ic_reset)(struct net_device *);
	/* update device state for 802.11 slot time change */
	void (*ic_updateslot)(struct net_device *);
	/* new station association callback/notification */
	void (*ic_newassoc)(struct ieee80211_node *, int);
	/* node state management */
	struct ieee80211_node *(*ic_node_alloc)(struct ieee80211_node_table *,
		struct ieee80211vap *);
	void (*ic_node_free)(struct ieee80211_node *);
	void (*ic_node_cleanup)(struct ieee80211_node *);
	u_int8_t (*ic_node_getrssi)(const struct ieee80211_node *);
	u_int8_t (*ic_node_move_data)(const struct ieee80211_node *);

	/* scanning support */
	void (*ic_scan_start)(struct ieee80211com *);
	void (*ic_scan_end)(struct ieee80211com *);
	void (*ic_set_channel)(struct ieee80211com *);

	/* u-apsd support */
	void (*ic_uapsd_flush)(struct ieee80211_node *);

	/* set coverage class */
	void (*ic_set_coverageclass)(struct ieee80211com *);

	/* mhz to ieee conversion */
	u_int (*ic_mhz2ieee)(struct ieee80211com *, u_int, u_int);
};

struct vlan_group;
struct eapolcom;
struct ieee80211_aclator;

struct ieee80211_nsparams {
	enum ieee80211_state newstate;
	int arg;
	int result;
};

#define IW_MAX_SPY 8
struct ieee80211_spy {
        u_int8_t mac[IW_MAX_SPY * IEEE80211_ADDR_LEN];
        u_int32_t ts_rssi[IW_MAX_SPY];   /* ts of rssi value from last read */
        u_int8_t thr_low;	/* 1 byte rssi value, 0 = threshold is off */
        u_int8_t thr_high;	/* 1 byte rssi value */   
        u_int8_t num;
};

#define MAX_PROC_IEEE80211_SIZE 16383
#define PROC_IEEE80211_PERM 0644

struct proc_ieee80211_priv {
     int rlen;
     int max_rlen;
     char *rbuf;

     int wlen;
     int max_wlen;
     char *wbuf;
};

struct ieee80211_proc_entry {
	char *name;
	struct file_operations *fileops;
	struct proc_dir_entry *entry;
	struct ieee80211_proc_entry *next;
};

struct ieee80211_app_ie_t {
	u_int32_t		length;		/* buffer length */
	struct ieee80211_ie    *ie;		/* buffer containing one or more IEs */
};

struct ieee80211vap {
	struct net_device *iv_dev;		/* associated device */
	struct net_device_stats	iv_devstats;	/* interface statistics */
	struct ifmedia iv_media;			/* interface media config */
	struct iw_statistics iv_iwstats;		/* wireless statistics block */
	struct ctl_table_header	*iv_sysctl_header;
	struct ctl_table *iv_sysctls;
	struct proc_dir_entry *iv_proc;
	struct ieee80211_proc_entry *iv_proc_entries;
	struct vlan_group *iv_vlgrp;		/* vlan group state */

	TAILQ_ENTRY(ieee80211vap) iv_next;	/* list of vap instances */
	u_int iv_unit;				/* virtual AP unit */
	struct ieee80211com *iv_ic;		/* back ptr to common state */
	u_int32_t iv_debug;			/* debug msg flags */
	struct ieee80211_stats iv_stats;		/* statistics */

	int iv_monitor_nods_only;		/* in monitor mode only nods traffic */
	int iv_monitor_txf_len;			/* in monitor mode, truncate tx packets */
	int iv_monitor_phy_errors;		/* in monitor mode, accept phy errors */
	int iv_monitor_crc_errors;		/* in monitor mode, accept crc errors */

	int (*iv_newstate)(struct ieee80211vap *, enum ieee80211_state, int);
	u_int8_t iv_myaddr[IEEE80211_ADDR_LEN];
	u_int32_t iv_flags;			/* state flags */
	u_int32_t iv_flags_ext;			/* extension of state flags */
	u_int32_t iv_caps;			/* capabilities */
	u_int8_t iv_ath_cap;			/* Atheros adv. capabilities */
	enum ieee80211_opmode iv_opmode;	/* operation mode */
	enum ieee80211_state iv_state;		/* state machine state */
	struct timer_list iv_mgtsend;		/* mgmt frame response timer */
						/* inactivity timer settings */
	int iv_inact_init;			/* setting for new station */
	int iv_inact_auth;			/* auth but not assoc setting */
	int iv_inact_run;			/* authorized setting */
	int iv_inact_probe;			/* inactive probe time */

	int iv_des_nssid;			/* # desired ssids */
	struct ieee80211_scan_ssid iv_des_ssid[1];/* desired ssid table */
	u_int8_t iv_des_bssid[IEEE80211_ADDR_LEN];
	struct ieee80211_channel *iv_des_chan;	/* desired channel */
	u_int16_t iv_des_mode;			/* desired mode */
	int iv_nicknamelen;			/* XXX junk */
	u_int8_t	 iv_nickname[IEEE80211_NWID_LEN];
	u_int iv_bgscanidle;			/* bg scan idle threshold */
	u_int iv_bgscanintvl;			/* bg scan min interval */
	u_int iv_scanvalid;			/* scan cache valid threshold */
	struct ieee80211_roam iv_roam;		/* sta-mode roaming state */

	u_int32_t iv_csa_jiffies;		/* last csa recv jiffies */
	u_int8_t iv_csa_count;			/* last csa count */
	struct ieee80211_channel *iv_csa_chan;	/* last csa channel */
	u_int8_t iv_csa_mode;			/* last csa mode */
	struct timer_list iv_csa_timer;		/* csa timer */
	u_int32_t *iv_aid_bitmap;		/* association id map */
	u_int16_t iv_max_aid;
	u_int16_t iv_sta_assoc;			/* stations associated */
	u_int16_t iv_ps_sta;			/* stations in power save */
	u_int16_t iv_ps_pending;			/* ps sta's w/ pending frames */
	u_int8_t *iv_tim_bitmap;			/* power-save stations w/ data*/
	u_int16_t iv_tim_len;			/* ic_tim_bitmap size (bytes) */
	u_int8_t iv_dtim_period;			/* DTIM period */
	u_int8_t iv_dtim_count;			/* DTIM count from last bcn */
						/* set/unset aid pwrsav state */
	void (*iv_set_tim)(struct ieee80211_node *, int);
	u_int8_t iv_uapsdinfo;			/* sta mode QoS Info flags */
	struct ieee80211_node *iv_bss;		/* information for this node */
	int iv_fixed_rate;			/* 802.11 rate or -1 */
	u_int16_t iv_rtsthreshold;
	u_int16_t iv_fragthreshold;
	u_int16_t iv_txmin;			/* min tx retry count */
	u_int16_t iv_txmax;			/* max tx retry count */
	u_int16_t iv_txlifetime;			/* tx lifetime */
	int iv_inact_timer;			/* inactivity timer wait */
	void *iv_opt_ie;			/* user-specified IE's */
	u_int16_t iv_opt_ie_len;			/* length of ni_opt_ie */
	u_int16_t iv_def_txkey;			/* default/group tx key index */
	struct ieee80211_key iv_nw_keys[IEEE80211_WEP_NKID];
	int (*iv_key_alloc)(struct ieee80211vap *, const struct ieee80211_key *);
	int (*iv_key_delete)(struct ieee80211vap *, const struct ieee80211_key *,
		struct ieee80211_node *);
	int (*iv_key_set)(struct ieee80211vap *, const struct ieee80211_key *,
		const u_int8_t mac[IEEE80211_ADDR_LEN]);
	void (*iv_key_update_begin)(struct ieee80211vap *);
	void (*iv_key_update_end)(struct ieee80211vap *);
#ifdef ATH_SUPERG_COMP
	void (*iv_comp_set)(struct ieee80211vap *, struct ieee80211_node *, int);
#endif
	const struct ieee80211_authenticator *iv_auth;/* authenticator glue */
	void *iv_ec;				/* private auth state */
	struct ieee80211vap *iv_xrvap;		/* pointer to XR VAP , if XR is enabled */
	u_int16_t iv_xrbcnwait;			/* SWBA count incremented until it reaches XR_BECON_FACTOR */
	struct timer_list iv_xrvapstart;	/* timer to start xr */
	u_int8_t iv_chanchange_count; 		/* 11h counter for channel change */
	int iv_mcast_rate; 			/* Multicast rate (Kbps) */

	const struct ieee80211_aclator *iv_acl;	/* aclator glue */
	void *iv_as;				/* private aclator state */

	struct timer_list iv_swbmiss;		/* software beacon miss timer */
	u_int16_t iv_swbmiss_period; 		/* software beacon miss timer period */
	struct ieee80211_nsparams iv_nsparams;	/* new state parameters for tasklet for stajoin1 */
	struct IEEE80211_TQ_STRUCT iv_stajoin1tq; /* tasklet for newstate action called from stajoin1tq */
	unsigned int iv_nsdone;			/* Done with scheduled newstate tasklet */
	uint8_t	wds_mac[IEEE80211_ADDR_LEN];
	struct ieee80211_spy iv_spy;         	/* IWSPY support */
	struct ieee80211_app_ie_t app_ie[IEEE80211_APPIE_NUM_OF_FRAME]; /* app-specified IEs by frame type */
	u_int32_t app_filter;			/* filters which management frames are forwarded to app */

};
MALLOC_DECLARE(M_80211_VAP);

#define	IEEE80211_ADDR_NULL(a1)		(memcmp(a1, "\x00\x00\x00\x00\x00\x00", \
					 IEEE80211_ADDR_LEN) == 0)
#define	IEEE80211_ADDR_EQ(a1, a2)	(memcmp(a1, a2, IEEE80211_ADDR_LEN) == 0)
#define	IEEE80211_ADDR_COPY(dst, src)	memcpy(dst, src, IEEE80211_ADDR_LEN)
#define	IEEE80211_ADDR_SET_NULL(dst)	memset(dst, 0, IEEE80211_ADDR_LEN)

/* ic_flags */
#define	IEEE80211_F_FF		0x00000001	/* CONF: ATH FF enabled */
#define	IEEE80211_F_TURBOP	0x00000002	/* CONF: ATH Turbo enabled*/
#define	IEEE80211_F_PROMISC	0x00000004	/* STATUS: promiscuous mode */
#define	IEEE80211_F_ALLMULTI	0x00000008	/* STATUS: all multicast mode */
/* NB: this is intentionally setup to be IEEE80211_CAPINFO_PRIVACY */
#define	IEEE80211_F_PRIVACY	0x00000010	/* CONF: privacy enabled */
#define	IEEE80211_F_PUREG	0x00000020	/* CONF: 11g w/o 11b sta's */
#define	IEEE80211_F_XRUPDATE	0x00000040	/* CONF: update beacon XR element*/
#define	IEEE80211_F_SCAN	0x00000080	/* STATUS: scanning */
#define	IEEE80211_F_XR		0x00000100	/* CONF: operate in XR mode */
#define	IEEE80211_F_SIBSS	0x00000200	/* STATUS: start IBSS */
/* NB: this is intentionally setup to be IEEE80211_CAPINFO_SHORT_SLOTTIME */
#define	IEEE80211_F_SHSLOT	0x00000400	/* STATUS: use short slot time*/
#define	IEEE80211_F_PMGTON	0x00000800	/* CONF: Power mgmt enable */
#define	IEEE80211_F_DESBSSID	0x00001000	/* CONF: des_bssid is set */
#define	IEEE80211_F_WME		0x00002000	/* CONF: enable WME use */
#define	IEEE80211_F_BGSCAN	0x00004000	/* CONF: bg scan enabled */
#define	IEEE80211_F_SWRETRY	0x00008000	/* CONF: sw tx retry enabled */
#define IEEE80211_F_TXPOW_FIXED	0x00010000	/* TX Power: fixed rate */
#define	IEEE80211_F_IBSSON	0x00020000	/* CONF: IBSS creation enable */
#define	IEEE80211_F_SHPREAMBLE	0x00040000	/* STATUS: use short preamble */
#define	IEEE80211_F_DATAPAD	0x00080000	/* CONF: do alignment pad */
#define	IEEE80211_F_USEPROT	0x00100000	/* STATUS: protection enabled */
#define	IEEE80211_F_USEBARKER	0x00200000	/* STATUS: use barker preamble*/
#define	IEEE80211_F_TIMUPDATE	0x00400000	/* STATUS: update beacon tim */
#define	IEEE80211_F_WPA1	0x00800000	/* CONF: WPA enabled */
#define	IEEE80211_F_WPA2	0x01000000	/* CONF: WPA2 enabled */
#define	IEEE80211_F_WPA		0x01800000	/* CONF: WPA/WPA2 enabled */
#define	IEEE80211_F_DROPUNENC	0x02000000	/* CONF: drop unencrypted */
#define	IEEE80211_F_COUNTERM	0x04000000	/* CONF: TKIP countermeasures */
#define	IEEE80211_F_HIDESSID	0x08000000	/* CONF: hide SSID in beacon */
#define IEEE80211_F_NOBRIDGE    0x10000000	/* CONF: disable internal bridge */

#define	IEEE80211_F_WMEUPDATE	0x20000000	/* STATUS: update beacon wme */
#define IEEE80211_F_DOTH	0x40000000	/* enable 11.h */
#define IEEE80211_F_CHANSWITCH	0x80000000	/* force chanswitch */

/* ic_flags_ext */
#define	IEEE80211_FEXT_WDS	0x00000001	/* CONF: 4 addr allowed */
#define IEEE80211_FEXT_COUNTRYIE 0x00000002	/* CONF: enable country IE */
#define IEEE80211_FEXT_SCAN_PENDING 0x00000004	/* STATE: scan pending */
#define	IEEE80211_FEXT_BGSCAN	0x00000008	/* STATE: enable full bgscan completion */