ieee80211.h

madwifi上的atheros无线网卡驱动源码

	((beacon)[8] | ((beacon)[9] << 8))
#define	IEEE80211_BEACON_CAPABILITY(beacon) \
	((beacon)[10] | ((beacon)[11] << 8))

#define	IEEE80211_CAPINFO_ESS			0x0001
#define	IEEE80211_CAPINFO_IBSS			0x0002
#define	IEEE80211_CAPINFO_CF_POLLABLE		0x0004
#define	IEEE80211_CAPINFO_CF_POLLREQ		0x0008
#define	IEEE80211_CAPINFO_PRIVACY		0x0010
#define	IEEE80211_CAPINFO_SHORT_PREAMBLE	0x0020
#define	IEEE80211_CAPINFO_PBCC			0x0040
#define	IEEE80211_CAPINFO_CHNL_AGILITY		0x0080
/* bits 8-9 are reserved (8 now for spectrum management) */
#define IEEE80211_CAPINFO_SPECTRUM_MGMT		0x0100
#define	IEEE80211_CAPINFO_SHORT_SLOTTIME	0x0400
#define	IEEE80211_CAPINFO_RSN			0x0800
/* bit 12 is reserved */
#define	IEEE80211_CAPINFO_DSSSOFDM		0x2000
/* bits 14-15 are reserved */

/*
 * 802.11i/WPA information element (maximally sized).
 */
struct ieee80211_ie_wpa {
	u_int8_t wpa_id;			/* IEEE80211_ELEMID_VENDOR */
	u_int8_t wpa_len;		/* length in bytes */
	u_int8_t wpa_oui[3];		/* 0x00, 0x50, 0xf2 */
	u_int8_t wpa_type;		/* OUI type */
	u_int16_t wpa_version;		/* spec revision */
	u_int32_t wpa_mcipher[1];	/* multicast/group key cipher */
	u_int16_t wpa_uciphercnt;	/* # pairwise key ciphers */
	u_int32_t wpa_uciphers[8];	/* ciphers */
	u_int16_t wpa_authselcnt;	/* authentication selector cnt*/
	u_int32_t wpa_authsels[8];	/* selectors */
	u_int16_t wpa_caps;		/* 802.11i capabilities */
	u_int16_t wpa_pmkidcnt;		/* 802.11i pmkid count */
	u_int16_t wpa_pmkids[8];		/* 802.11i pmkids */
} __packed;

/*
 * Management information element payloads.
 */

enum {
	IEEE80211_ELEMID_SSID		= 0,
	IEEE80211_ELEMID_RATES		= 1,
	IEEE80211_ELEMID_FHPARMS	= 2,
	IEEE80211_ELEMID_DSPARMS	= 3,
	IEEE80211_ELEMID_CFPARMS	= 4,
	IEEE80211_ELEMID_TIM		= 5,
	IEEE80211_ELEMID_IBSSPARMS	= 6,
	IEEE80211_ELEMID_COUNTRY	= 7,
	IEEE80211_ELEMID_REQINFO	= 10,
	IEEE80211_ELEMID_CHALLENGE	= 16,
	/* 17-31 reserved for challenge text extension */
	IEEE80211_ELEMID_PWRCNSTR	= 32,
	IEEE80211_ELEMID_PWRCAP		= 33,
	IEEE80211_ELEMID_TPCREQ		= 34,
	IEEE80211_ELEMID_TPCREP		= 35,
	IEEE80211_ELEMID_SUPPCHAN	= 36,
	IEEE80211_ELEMID_CHANSWITCHANN	= 37,
	IEEE80211_ELEMID_MEASREQ	= 38,
	IEEE80211_ELEMID_MEASREP	= 39,
	IEEE80211_ELEMID_QUIET		= 40,
	IEEE80211_ELEMID_IBSSDFS	= 41,
	IEEE80211_ELEMID_ERP		= 42,
	IEEE80211_ELEMID_RSN		= 48,
	IEEE80211_ELEMID_XRATES		= 50,
	/* 128-129 proprietary elements used by Agere chipsets */
	IEEE80211_ELEMID_AGERE1		= 128,
	IEEE80211_ELEMID_AGERE2		= 129,
	IEEE80211_ELEMID_TPC		= 150,
	IEEE80211_ELEMID_CCKM		= 156,
	IEEE80211_ELEMID_VENDOR		= 221,	/* vendor private */
};

#define IEEE80211_CHANSWITCHANN_BYTES 5

struct ieee80211_tim_ie {
	u_int8_t	tim_ie;			/* IEEE80211_ELEMID_TIM */
	u_int8_t	tim_len;
	u_int8_t	tim_count;		/* DTIM count */
	u_int8_t	tim_period;		/* DTIM period */
	u_int8_t	tim_bitctl;		/* bitmap control */
	u_int8_t	tim_bitmap[1];		/* variable-length bitmap */
} __packed;

struct ieee80211_country_ie {
	u_int8_t	ie;			/* IEEE80211_ELEMID_COUNTRY */
	u_int8_t	len;
	u_int8_t	cc[3];			/* ISO CC+(I)ndoor/(O)utdoor */
	struct {
		u_int8_t schan;			/* starting channel */
		u_int8_t nchan;			/* number channels */
		u_int8_t maxtxpwr;		/* tx power cap */
	} __packed band[4];			/* up to 4 sub bands */
} __packed;

#define IEEE80211_CHALLENGE_LEN		128

#define IEEE80211_SUPPCHAN_LEN		26

#define	IEEE80211_RATE_BASIC		0x80
#define	IEEE80211_RATE_VAL		0x7f

/* EPR information element flags */
#define	IEEE80211_ERP_NON_ERP_PRESENT	0x01
#define	IEEE80211_ERP_USE_PROTECTION	0x02
#define	IEEE80211_ERP_LONG_PREAMBLE	0x04

/* Atheros private advanced capabilities info */
#define	ATHEROS_CAP_TURBO_PRIME		0x01
#define	ATHEROS_CAP_COMPRESSION		0x02
#define	ATHEROS_CAP_FAST_FRAME		0x04
/* bits 3-6 reserved */
#define	ATHEROS_CAP_BOOST		0x80

#define	ATH_OUI			0x7f0300		/* Atheros OUI */
#define	ATH_OUI_TYPE		0x01
#define	ATH_OUI_SUBTYPE		0x01
#define ATH_OUI_VERSION		0x00
#define	ATH_OUI_TYPE_XR		0x03
#define	ATH_OUI_VER_XR		0x01

#define	WPA_OUI			0xf25000
#define	WPA_OUI_TYPE		0x01
#define	WPA_VERSION		1		/* current supported version */

#define	WPA_CSE_NULL		0x00
#define	WPA_CSE_WEP40		0x01
#define	WPA_CSE_TKIP		0x02
#define	WPA_CSE_CCMP		0x04
#define	WPA_CSE_WEP104		0x05

#define	WPA_ASE_NONE		0x00
#define	WPA_ASE_8021X_UNSPEC	0x01
#define	WPA_ASE_8021X_PSK	0x02

#define	RSN_OUI			0xac0f00
#define	RSN_VERSION		1		/* current supported version */

#define	RSN_CSE_NULL		0x00
#define	RSN_CSE_WEP40		0x01
#define	RSN_CSE_TKIP		0x02
#define	RSN_CSE_WRAP		0x03
#define	RSN_CSE_CCMP		0x04
#define	RSN_CSE_WEP104		0x05

#define	RSN_ASE_NONE		0x00
#define	RSN_ASE_8021X_UNSPEC	0x01
#define	RSN_ASE_8021X_PSK	0x02

#define	RSN_CAP_PREAUTH		0x01

#define	WME_OUI			0xf25000
#define	WME_OUI_TYPE		0x02
#define	WME_INFO_OUI_SUBTYPE	0x00
#define	WME_PARAM_OUI_SUBTYPE	0x01
#define	WME_VERSION		1

/* WME stream classes */
#define	WME_AC_BE	0		/* best effort */
#define	WME_AC_BK	1		/* background */
#define	WME_AC_VI	2		/* video */
#define	WME_AC_VO	3		/* voice */

/*
 * AUTH management packets
 *
 *	octet algo[2]
 *	octet seq[2]
 *	octet status[2]
 *	octet chal.id
 *	octet chal.length
 *	octet chal.text[253]
 */

typedef u_int8_t *ieee80211_mgt_auth_t;

#define	IEEE80211_AUTH_ALGORITHM(auth) \
	((auth)[0] | ((auth)[1] << 8))
#define	IEEE80211_AUTH_TRANSACTION(auth) \
	((auth)[2] | ((auth)[3] << 8))
#define	IEEE80211_AUTH_STATUS(auth) \
	((auth)[4] | ((auth)[5] << 8))

#define	IEEE80211_AUTH_ALG_OPEN		0x0000
#define	IEEE80211_AUTH_ALG_SHARED	0x0001
#define	IEEE80211_AUTH_ALG_LEAP		0x0080

enum {
	IEEE80211_AUTH_OPEN_REQUEST		= 1,
	IEEE80211_AUTH_OPEN_RESPONSE		= 2,
};

enum {
	IEEE80211_AUTH_SHARED_REQUEST		= 1,
	IEEE80211_AUTH_SHARED_CHALLENGE		= 2,
	IEEE80211_AUTH_SHARED_RESPONSE		= 3,
	IEEE80211_AUTH_SHARED_PASS		= 4,
};

/*
 * Reason codes
 *
 * Unlisted codes are reserved
 */

enum {
	IEEE80211_REASON_UNSPECIFIED		= 1,
	IEEE80211_REASON_AUTH_EXPIRE		= 2,
	IEEE80211_REASON_AUTH_LEAVE		= 3,
	IEEE80211_REASON_ASSOC_EXPIRE		= 4,
	IEEE80211_REASON_ASSOC_TOOMANY		= 5,
	IEEE80211_REASON_NOT_AUTHED		= 6,
	IEEE80211_REASON_NOT_ASSOCED		= 7,
	IEEE80211_REASON_ASSOC_LEAVE		= 8,
	IEEE80211_REASON_ASSOC_NOT_AUTHED	= 9,

	IEEE80211_REASON_RSN_REQUIRED		= 11,
	IEEE80211_REASON_RSN_INCONSISTENT	= 12,
	IEEE80211_REASON_IE_INVALID		= 13,
	IEEE80211_REASON_MIC_FAILURE		= 14,

	IEEE80211_STATUS_SUCCESS		= 0,
	IEEE80211_STATUS_UNSPECIFIED		= 1,
	IEEE80211_STATUS_CAPINFO		= 10,
	IEEE80211_STATUS_NOT_ASSOCED		= 11,
	IEEE80211_STATUS_OTHER			= 12,
	IEEE80211_STATUS_ALG			= 13,
	IEEE80211_STATUS_SEQUENCE		= 14,
	IEEE80211_STATUS_CHALLENGE		= 15,
	IEEE80211_STATUS_TIMEOUT		= 16,
	IEEE80211_STATUS_TOOMANY		= 17,
	IEEE80211_STATUS_BASIC_RATE		= 18,
	IEEE80211_STATUS_SP_REQUIRED		= 19,
	IEEE80211_STATUS_PBCC_REQUIRED		= 20,
	IEEE80211_STATUS_CA_REQUIRED		= 21,
	IEEE80211_STATUS_TOO_MANY_STATIONS	= 22,
	IEEE80211_STATUS_RATES			= 23,
	IEEE80211_STATUS_SHORTSLOT_REQUIRED	= 25,
	IEEE80211_STATUS_DSSSOFDM_REQUIRED	= 26,
};

#define	IEEE80211_WEP_KEYLEN		5	/* 40bit */
#define	IEEE80211_WEP_IVLEN		3	/* 24bit */
#define	IEEE80211_WEP_KIDLEN		1	/* 1 octet */
#define	IEEE80211_WEP_CRCLEN		4	/* CRC-32 */
#define	IEEE80211_WEP_NKID		4	/* number of key ids */

/*
 * 802.11i defines an extended IV for use with non-WEP ciphers.
 * When the EXTIV bit is set in the key id byte an additional
 * 4 bytes immediately follow the IV for TKIP.  For CCMP the
 * EXTIV bit is likewise set but the 8 bytes represent the
 * CCMP header rather than IV+extended-IV.
 */
#define	IEEE80211_WEP_EXTIV		0x20
#define	IEEE80211_WEP_EXTIVLEN		4	/* extended IV length */
#define	IEEE80211_WEP_MICLEN		8	/* trailing MIC */

#define	IEEE80211_CRC_LEN		4

/*
 * Maximum acceptable MTU is:
 *	IEEE80211_MAX_LEN - WEP overhead - CRC -
 *		QoS overhead - RSN/WPA overhead
 * Min is arbitrarily chosen > IEEE80211_MIN_LEN.  The default
 * mtu is Ethernet-compatible; it's set by ether_ifattach.
 */
#define	IEEE80211_MTU_MAX		2290
#define	IEEE80211_MTU_MIN		32

#define	IEEE80211_MAX_LEN		(2300 + IEEE80211_CRC_LEN + \
    (IEEE80211_WEP_IVLEN + IEEE80211_WEP_KIDLEN + IEEE80211_WEP_CRCLEN))
#define	IEEE80211_ACK_LEN \
	(sizeof(struct ieee80211_frame_ack) + IEEE80211_CRC_LEN)
#define	IEEE80211_MIN_LEN \
	(sizeof(struct ieee80211_frame_min) + IEEE80211_CRC_LEN)

/*
 * The 802.11 spec says at most 2007 stations may be
 * associated at once.  For most AP's this is way more
 * than is feasible so we use a default of 128.  This
 * number may be overridden by the driver and/or by
 * user configuration.
 */
#define	IEEE80211_AID_MAX		2007
#define	IEEE80211_AID_DEF		128

#define	IEEE80211_AID(b)	((b) &~ 0xc000)

/* 
 * RTS frame length parameters.  The default is specified in
 * the 802.11 spec.  The max may be wrong for jumbo frames.
 */
#define	IEEE80211_RTS_DEFAULT		512
#define	IEEE80211_RTS_MIN		1
#define	IEEE80211_RTS_MAX		2346

/* 
 * Regulatory extension identifier for country IE.
 */
#define IEEE80211_REG_EXT_ID		201

/*
 * IEEE 802.11 timer synchronization function (TSF) timestamp length
 */
#define IEEE80211_TSF_LEN		8

#endif /* _NET80211_IEEE80211_H_ */