drivers/staging/wlan-ng/p80211mgmt.h - linux - Git at Google

 /* p80211mgmt.h
 *
 * Macros, types, and functions to handle 802.11 mgmt frames
 *
 * Copyright (C) 1999 AbsoluteValue Systems, Inc.  All Rights Reserved.
 * --------------------------------------------------------------------
 *
 * linux-wlan
 *
 *   The contents of this file are subject to the Mozilla Public
 *   License Version 1.1 (the "License"); you may not use this file
 *   except in compliance with the License. You may obtain a copy of
 *   the License at http://www.mozilla.org/MPL/
 *
 *   Software distributed under the License is distributed on an "AS
 *   IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
 *   implied. See the License for the specific language governing
 *   rights and limitations under the License.
 *
 *   Alternatively, the contents of this file may be used under the
 *   terms of the GNU Public License version 2 (the "GPL"), in which
 *   case the provisions of the GPL are applicable instead of the
 *   above.  If you wish to allow the use of your version of this file
 *   only under the terms of the GPL and not to allow others to use
 *   your version of this file under the MPL, indicate your decision
 *   by deleting the provisions above and replace them with the notice
 *   and other provisions required by the GPL.  If you do not delete
 *   the provisions above, a recipient may use your version of this
 *   file under either the MPL or the GPL.
 *
 * --------------------------------------------------------------------
 *
 * Inquiries regarding the linux-wlan Open Source project can be
 * made directly to:
 *
 * AbsoluteValue Systems Inc.
 * info@linux-wlan.com
 * http://www.linux-wlan.com
 *
 * --------------------------------------------------------------------
 *
 * Portions of the development of this software were funded by
 * Intersil Corporation as part of PRISM(R) chipset product development.
 *
 * --------------------------------------------------------------------
 *
 * This file declares the constants and types used in the interface
 * between a wlan driver and the user mode utilities.
 *
 * Notes:
 *  - Constant values are always in HOST byte order.  To assign
 *    values to multi-byte fields they _must_ be converted to
 *    ieee byte order.  To retrieve multi-byte values from incoming
 *    frames, they must be converted to host order.
 *
 *  - The len member of the frame structure does NOT!!! include
 *    the MAC CRC.  Therefore, the len field on rx'd frames should
 *    have 4 subtracted from it.
 *
 * All functions declared here are implemented in p80211.c
 *
 * The types, macros, and functions defined here are primarily
 * used for encoding and decoding management frames.  They are
 * designed to follow these patterns of use:
 *
 * DECODE:
 * 1) a frame of length len is received into buffer b
 * 2) using the hdr structure and macros, we determine the type
 * 3) an appropriate mgmt frame structure, mf, is allocated and zeroed
 * 4) mf.hdr = b
 *    mf.buf = b
 *    mf.len = len
 * 5) call mgmt_decode( mf )
 * 6) the frame field pointers in mf are now set.  Note that any
 *    multi-byte frame field values accessed using the frame field
 *    pointers are in ieee byte order and will have to be converted
 *    to host order.
 *
 * ENCODE:
 * 1) Library client allocates buffer space for maximum length
 *    frame of the desired type
 * 2) Library client allocates a mgmt frame structure, called mf,
 *    of the desired type
 * 3) Set the following:
 *    mf.type = <desired type>
 *    mf.buf = <allocated buffer address>
 * 4) call mgmt_encode( mf )
 * 5) all of the fixed field pointers and fixed length information element
 *    pointers in mf are now set to their respective locations in the
 *    allocated space (fortunately, all variable length information elements
 *    fall at the end of their respective frames).
 * 5a) The length field is set to include the last of the fixed and fixed
 *     length fields.  It may have to be updated for optional or variable
 * 	length information elements.
 * 6) Optional and variable length information elements are special cases
 *    and must be handled individually by the client code.
 * --------------------------------------------------------------------
 */

 #ifndef _P80211MGMT_H
 #define _P80211MGMT_H

 #ifndef  _P80211HDR_H
 #include "p80211hdr.h"
 #endif

 /*-- Information Element IDs --------------------*/
 #define WLAN_EID_SSID		0
 #define WLAN_EID_SUPP_RATES	1
 #define WLAN_EID_FH_PARMS	2
 #define WLAN_EID_DS_PARMS	3
 #define WLAN_EID_CF_PARMS	4
 #define WLAN_EID_TIM		5
 #define WLAN_EID_IBSS_PARMS	6
 /*-- values 7-15 reserved --*/
 #define WLAN_EID_CHALLENGE	16
 /*-- values 17-31 reserved for challenge text extension --*/
 /*-- values 32-255 reserved --*/

 /*-- Reason Codes -------------------------------*/
 #define WLAN_MGMT_REASON_RSVD			0
 #define WLAN_MGMT_REASON_UNSPEC			1
 #define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID	2
 #define WLAN_MGMT_REASON_DEAUTH_LEAVING		3
 #define WLAN_MGMT_REASON_DISASSOC_INACTIVE	4
 #define WLAN_MGMT_REASON_DISASSOC_AP_BUSY	5
 #define WLAN_MGMT_REASON_CLASS2_NONAUTH		6
 #define WLAN_MGMT_REASON_CLASS3_NONASSOC	7
 #define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT	8
 #define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH	9

 /*-- Status Codes -------------------------------*/
 #define WLAN_MGMT_STATUS_SUCCESS		0
 #define WLAN_MGMT_STATUS_UNSPEC_FAILURE		1
 #define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED	10
 #define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC	11
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC	12
 #define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG	13
 #define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ		14
 #define WLAN_MGMT_STATUS_CHALLENGE_FAIL		15
 #define WLAN_MGMT_STATUS_AUTH_TIMEOUT		16
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY	17
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES	18
   /* p80211b additions */
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT	19
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC	20
 #define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY	21

 /*-- Auth Algorithm Field ---------------------------*/
 #define WLAN_AUTH_ALG_OPENSYSTEM		0
 #define WLAN_AUTH_ALG_SHAREDKEY			1

 /*-- Management Frame Field Offsets -------------*/
 /* Note: Not all fields are listed because of variable lengths,   */
 /*       see the code in p80211.c to see how we search for fields */
 /* Note: These offsets are from the start of the frame data       */

 #define WLAN_BEACON_OFF_TS			0
 #define WLAN_BEACON_OFF_BCN_int			8
 #define WLAN_BEACON_OFF_CAPINFO			10
 #define WLAN_BEACON_OFF_SSID			12

 #define WLAN_DISASSOC_OFF_REASON		0

 #define WLAN_ASSOCREQ_OFF_CAP_INFO		0
 #define WLAN_ASSOCREQ_OFF_LISTEN_int		2
 #define WLAN_ASSOCREQ_OFF_SSID			4

 #define WLAN_ASSOCRESP_OFF_CAP_INFO		0
 #define WLAN_ASSOCRESP_OFF_STATUS		2
 #define WLAN_ASSOCRESP_OFF_AID			4
 #define WLAN_ASSOCRESP_OFF_SUPP_RATES		6

 #define WLAN_REASSOCREQ_OFF_CAP_INFO		0
 #define WLAN_REASSOCREQ_OFF_LISTEN_int		2
 #define WLAN_REASSOCREQ_OFF_CURR_AP		4
 #define WLAN_REASSOCREQ_OFF_SSID		10

 #define WLAN_REASSOCRESP_OFF_CAP_INFO		0
 #define WLAN_REASSOCRESP_OFF_STATUS		2
 #define WLAN_REASSOCRESP_OFF_AID		4
 #define WLAN_REASSOCRESP_OFF_SUPP_RATES		6

 #define WLAN_PROBEREQ_OFF_SSID			0

 #define WLAN_PROBERESP_OFF_TS			0
 #define WLAN_PROBERESP_OFF_BCN_int		8
 #define WLAN_PROBERESP_OFF_CAP_INFO		10
 #define WLAN_PROBERESP_OFF_SSID			12

 #define WLAN_AUTHEN_OFF_AUTH_ALG		0
 #define WLAN_AUTHEN_OFF_AUTH_SEQ		2
 #define WLAN_AUTHEN_OFF_STATUS			4
 #define WLAN_AUTHEN_OFF_CHALLENGE		6

 #define WLAN_DEAUTHEN_OFF_REASON		0

 /*-- Capability Field ---------------------------*/
 #define WLAN_GET_MGMT_CAP_INFO_ESS(n)		((n) & BIT(0))
 #define WLAN_GET_MGMT_CAP_INFO_IBSS(n)		(((n) & BIT(1)) >> 1)
 #define WLAN_GET_MGMT_CAP_INFO_CFPOLLABLE(n)	(((n) & BIT(2)) >> 2)
 #define WLAN_GET_MGMT_CAP_INFO_CFPOLLREQ(n)	(((n) & BIT(3)) >> 3)
 #define WLAN_GET_MGMT_CAP_INFO_PRIVACY(n)	(((n) & BIT(4)) >> 4)
   /* p80211b additions */
 #define WLAN_GET_MGMT_CAP_INFO_SHORT(n)		(((n) & BIT(5)) >> 5)
 #define WLAN_GET_MGMT_CAP_INFO_PBCC(n)		(((n) & BIT(6)) >> 6)
 #define WLAN_GET_MGMT_CAP_INFO_AGILITY(n)	(((n) & BIT(7)) >> 7)

 #define WLAN_SET_MGMT_CAP_INFO_ESS(n)		(n)
 #define WLAN_SET_MGMT_CAP_INFO_IBSS(n)		((n) << 1)
 #define WLAN_SET_MGMT_CAP_INFO_CFPOLLABLE(n)	((n) << 2)
 #define WLAN_SET_MGMT_CAP_INFO_CFPOLLREQ(n)	((n) << 3)
 #define WLAN_SET_MGMT_CAP_INFO_PRIVACY(n)	((n) << 4)
   /* p80211b additions */
 #define WLAN_SET_MGMT_CAP_INFO_SHORT(n)		((n) << 5)
 #define WLAN_SET_MGMT_CAP_INFO_PBCC(n)		((n) << 6)
 #define WLAN_SET_MGMT_CAP_INFO_AGILITY(n)	((n) << 7)

 /*-- Information Element Types --------------------*/
 /* prototype structure, all IEs start with these members */

 typedef struct wlan_ie {
 	u8 eid;
 	u8 len;
 } __attribute__ ((packed)) wlan_ie_t;

 /*-- Service Set Identity (SSID)  -----------------*/
 typedef struct wlan_ie_ssid {
 	u8 eid;
 	u8 len;
 	u8 ssid[1];		/* may be zero, ptrs may overlap */
 } __attribute__ ((packed)) wlan_ie_ssid_t;

 /*-- Supported Rates  -----------------------------*/
 typedef struct wlan_ie_supp_rates {
 	u8 eid;
 	u8 len;
 	u8 rates[1];		/* had better be at LEAST one! */
 } __attribute__ ((packed)) wlan_ie_supp_rates_t;

 /*-- FH Parameter Set  ----------------------------*/
 typedef struct wlan_ie_fh_parms {
 	u8 eid;
 	u8 len;
 	u16 dwell;
 	u8 hopset;
 	u8 hoppattern;
 	u8 hopindex;
 } __attribute__ ((packed)) wlan_ie_fh_parms_t;

 /*-- DS Parameter Set  ----------------------------*/
 typedef struct wlan_ie_ds_parms {
 	u8 eid;
 	u8 len;
 	u8 curr_ch;
 } __attribute__ ((packed)) wlan_ie_ds_parms_t;

 /*-- CF Parameter Set  ----------------------------*/

 typedef struct wlan_ie_cf_parms {
 	u8 eid;
 	u8 len;
 	u8 cfp_cnt;
 	u8 cfp_period;
 	u16 cfp_maxdur;
 	u16 cfp_durremaining;
 } __attribute__ ((packed)) wlan_ie_cf_parms_t;

 /*-- TIM ------------------------------------------*/
 typedef struct wlan_ie_tim {
 	u8 eid;
 	u8 len;
 	u8 dtim_cnt;
 	u8 dtim_period;
 	u8 bitmap_ctl;
 	u8 virt_bm[1];
 } __attribute__ ((packed)) wlan_ie_tim_t;

 /*-- IBSS Parameter Set ---------------------------*/
 typedef struct wlan_ie_ibss_parms {
 	u8 eid;
 	u8 len;
 	u16 atim_win;
 } __attribute__ ((packed)) wlan_ie_ibss_parms_t;

 /*-- Challenge Text  ------------------------------*/
 typedef struct wlan_ie_challenge {
 	u8 eid;
 	u8 len;
 	u8 challenge[1];
 } __attribute__ ((packed)) wlan_ie_challenge_t;

 /*-------------------------------------------------*/
 /*  Frame Types  */

 /* prototype structure, all mgmt frame types will start with these members */
 typedef struct wlan_fr_mgmt {
 	u16 type;
 	u16 len;		/* DOES NOT include CRC !!!! */
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	/*-- info elements ----------*/
 } wlan_fr_mgmt_t;

 /*-- Beacon ---------------------------------------*/
 typedef struct wlan_fr_beacon {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u64 *ts;
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
 	wlan_ie_ssid_t *ssid;
 	wlan_ie_supp_rates_t *supp_rates;
 	wlan_ie_fh_parms_t *fh_parms;
 	wlan_ie_ds_parms_t *ds_parms;
 	wlan_ie_cf_parms_t *cf_parms;
 	wlan_ie_ibss_parms_t *ibss_parms;
 	wlan_ie_tim_t *tim;

 } wlan_fr_beacon_t;

 /*-- IBSS ATIM ------------------------------------*/
 typedef struct wlan_fr_ibssatim {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;

 	/*-- fixed fields -----------*/
 	/*-- info elements ----------*/

 	/* this frame type has a null body */

 } wlan_fr_ibssatim_t;

 /*-- Disassociation -------------------------------*/
 typedef struct wlan_fr_disassoc {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *reason;

 	/*-- info elements ----------*/

 } wlan_fr_disassoc_t;

 /*-- Association Request --------------------------*/
 typedef struct wlan_fr_assocreq {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *cap_info;
 	u16 *listen_int;
 	/*-- info elements ----------*/
 	wlan_ie_ssid_t *ssid;
 	wlan_ie_supp_rates_t *supp_rates;

 } wlan_fr_assocreq_t;

 /*-- Association Response -------------------------*/
 typedef struct wlan_fr_assocresp {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *cap_info;
 	u16 *status;
 	u16 *aid;
 	/*-- info elements ----------*/
 	wlan_ie_supp_rates_t *supp_rates;

 } wlan_fr_assocresp_t;

 /*-- Reassociation Request ------------------------*/
 typedef struct wlan_fr_reassocreq {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *cap_info;
 	u16 *listen_int;
 	u8 *curr_ap;
 	/*-- info elements ----------*/
 	wlan_ie_ssid_t *ssid;
 	wlan_ie_supp_rates_t *supp_rates;

 } wlan_fr_reassocreq_t;

 /*-- Reassociation Response -----------------------*/
 typedef struct wlan_fr_reassocresp {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *cap_info;
 	u16 *status;
 	u16 *aid;
 	/*-- info elements ----------*/
 	wlan_ie_supp_rates_t *supp_rates;

 } wlan_fr_reassocresp_t;

 /*-- Probe Request --------------------------------*/
 typedef struct wlan_fr_probereq {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	/*-- info elements ----------*/
 	wlan_ie_ssid_t *ssid;
 	wlan_ie_supp_rates_t *supp_rates;

 } wlan_fr_probereq_t;

 /*-- Probe Response -------------------------------*/
 typedef struct wlan_fr_proberesp {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u64 *ts;
 	u16 *bcn_int;
 	u16 *cap_info;
 	/*-- info elements ----------*/
 	wlan_ie_ssid_t *ssid;
 	wlan_ie_supp_rates_t *supp_rates;
 	wlan_ie_fh_parms_t *fh_parms;
 	wlan_ie_ds_parms_t *ds_parms;
 	wlan_ie_cf_parms_t *cf_parms;
 	wlan_ie_ibss_parms_t *ibss_parms;
 } wlan_fr_proberesp_t;

 /*-- Authentication -------------------------------*/
 typedef struct wlan_fr_authen {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *auth_alg;
 	u16 *auth_seq;
 	u16 *status;
 	/*-- info elements ----------*/
 	wlan_ie_challenge_t *challenge;

 } wlan_fr_authen_t;

 /*-- Deauthenication -----------------------------*/
 typedef struct wlan_fr_deauthen {
 	u16 type;
 	u16 len;
 	u8 *buf;
 	p80211_hdr_t *hdr;
 	/* used for target specific data, skb in Linux */
 	void *priv;
 	/*-- fixed fields -----------*/
 	u16 *reason;

 	/*-- info elements ----------*/

 } wlan_fr_deauthen_t;

 void wlan_mgmt_encode_beacon(wlan_fr_beacon_t * f);
 void wlan_mgmt_decode_beacon(wlan_fr_beacon_t * f);
 void wlan_mgmt_encode_disassoc(wlan_fr_disassoc_t * f);
 void wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t * f);
 void wlan_mgmt_encode_assocreq(wlan_fr_assocreq_t * f);
 void wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t * f);
 void wlan_mgmt_encode_assocresp(wlan_fr_assocresp_t * f);
 void wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t * f);
 void wlan_mgmt_encode_reassocreq(wlan_fr_reassocreq_t * f);
 void wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t * f);
 void wlan_mgmt_encode_reassocresp(wlan_fr_reassocresp_t * f);
 void wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t * f);
 void wlan_mgmt_encode_probereq(wlan_fr_probereq_t * f);
 void wlan_mgmt_decode_probereq(wlan_fr_probereq_t * f);
 void wlan_mgmt_encode_proberesp(wlan_fr_proberesp_t * f);
 void wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t * f);
 void wlan_mgmt_encode_authen(wlan_fr_authen_t * f);
 void wlan_mgmt_decode_authen(wlan_fr_authen_t * f);
 void wlan_mgmt_encode_deauthen(wlan_fr_deauthen_t * f);
 void wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t * f);

 #endif /* _P80211MGMT_H */
	/* p80211mgmt.h
	*
	* Macros, types, and functions to handle 802.11 mgmt frames
	*
	* Copyright (C) 1999 AbsoluteValue Systems, Inc. All Rights Reserved.
	* --------------------------------------------------------------------
	*
	* linux-wlan
	*
	* The contents of this file are subject to the Mozilla Public
	* License Version 1.1 (the "License"); you may not use this file
	* except in compliance with the License. You may obtain a copy of
	* the License at http://www.mozilla.org/MPL/
	*
	* Software distributed under the License is distributed on an "AS
	* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
	* implied. See the License for the specific language governing
	* rights and limitations under the License.
	*
	* Alternatively, the contents of this file may be used under the
	* terms of the GNU Public License version 2 (the "GPL"), in which
	* case the provisions of the GPL are applicable instead of the
	* above. If you wish to allow the use of your version of this file
	* only under the terms of the GPL and not to allow others to use
	* your version of this file under the MPL, indicate your decision
	* by deleting the provisions above and replace them with the notice
	* and other provisions required by the GPL. If you do not delete
	* the provisions above, a recipient may use your version of this
	* file under either the MPL or the GPL.
	*
	* --------------------------------------------------------------------
	*
	* Inquiries regarding the linux-wlan Open Source project can be
	* made directly to:
	*
	* AbsoluteValue Systems Inc.
	* info@linux-wlan.com
	* http://www.linux-wlan.com
	*
	* --------------------------------------------------------------------
	*
	* Portions of the development of this software were funded by
	* Intersil Corporation as part of PRISM(R) chipset product development.
	*
	* --------------------------------------------------------------------
	*
	* This file declares the constants and types used in the interface
	* between a wlan driver and the user mode utilities.
	*
	* Notes:
	* - Constant values are always in HOST byte order. To assign
	* values to multi-byte fields they _must_ be converted to
	* ieee byte order. To retrieve multi-byte values from incoming
	* frames, they must be converted to host order.
	*
	* - The len member of the frame structure does NOT!!! include
	* the MAC CRC. Therefore, the len field on rx'd frames should
	* have 4 subtracted from it.
	*
	* All functions declared here are implemented in p80211.c
	*
	* The types, macros, and functions defined here are primarily
	* used for encoding and decoding management frames. They are
	* designed to follow these patterns of use:
	*
	* DECODE:
	* 1) a frame of length len is received into buffer b
	* 2) using the hdr structure and macros, we determine the type
	* 3) an appropriate mgmt frame structure, mf, is allocated and zeroed
	* 4) mf.hdr = b
	* mf.buf = b
	* mf.len = len
	* 5) call mgmt_decode( mf )
	* 6) the frame field pointers in mf are now set. Note that any
	* multi-byte frame field values accessed using the frame field
	* pointers are in ieee byte order and will have to be converted
	* to host order.
	*
	* ENCODE:
	* 1) Library client allocates buffer space for maximum length
	* frame of the desired type
	* 2) Library client allocates a mgmt frame structure, called mf,
	* of the desired type
	* 3) Set the following:
	* mf.type = <desired type>
	* mf.buf = <allocated buffer address>
	* 4) call mgmt_encode( mf )
	* 5) all of the fixed field pointers and fixed length information element
	* pointers in mf are now set to their respective locations in the
	* allocated space (fortunately, all variable length information elements
	* fall at the end of their respective frames).
	* 5a) The length field is set to include the last of the fixed and fixed
	* length fields. It may have to be updated for optional or variable
	* length information elements.
	* 6) Optional and variable length information elements are special cases
	* and must be handled individually by the client code.
	* --------------------------------------------------------------------
	*/

	#ifndef _P80211MGMT_H
	#define _P80211MGMT_H

	#ifndef _P80211HDR_H
	#include "p80211hdr.h"
	#endif

	/-- Information Element IDs --------------------/
	#define WLAN_EID_SSID 0
	#define WLAN_EID_SUPP_RATES 1
	#define WLAN_EID_FH_PARMS 2
	#define WLAN_EID_DS_PARMS 3
	#define WLAN_EID_CF_PARMS 4
	#define WLAN_EID_TIM 5
	#define WLAN_EID_IBSS_PARMS 6
	/-- values 7-15 reserved --/
	#define WLAN_EID_CHALLENGE 16
	/-- values 17-31 reserved for challenge text extension --/
	/-- values 32-255 reserved --/

	/-- Reason Codes -------------------------------/
	#define WLAN_MGMT_REASON_RSVD 0
	#define WLAN_MGMT_REASON_UNSPEC 1
	#define WLAN_MGMT_REASON_PRIOR_AUTH_INVALID 2
	#define WLAN_MGMT_REASON_DEAUTH_LEAVING 3
	#define WLAN_MGMT_REASON_DISASSOC_INACTIVE 4
	#define WLAN_MGMT_REASON_DISASSOC_AP_BUSY 5
	#define WLAN_MGMT_REASON_CLASS2_NONAUTH 6
	#define WLAN_MGMT_REASON_CLASS3_NONASSOC 7
	#define WLAN_MGMT_REASON_DISASSOC_STA_HASLEFT 8
	#define WLAN_MGMT_REASON_CANT_ASSOC_NONAUTH 9

	/-- Status Codes -------------------------------/
	#define WLAN_MGMT_STATUS_SUCCESS 0
	#define WLAN_MGMT_STATUS_UNSPEC_FAILURE 1
	#define WLAN_MGMT_STATUS_CAPS_UNSUPPORTED 10
	#define WLAN_MGMT_STATUS_REASSOC_NO_ASSOC 11
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_UNSPEC 12
	#define WLAN_MGMT_STATUS_UNSUPPORTED_AUTHALG 13
	#define WLAN_MGMT_STATUS_RX_AUTH_NOSEQ 14
	#define WLAN_MGMT_STATUS_CHALLENGE_FAIL 15
	#define WLAN_MGMT_STATUS_AUTH_TIMEOUT 16
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_BUSY 17
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_RATES 18
	/* p80211b additions */
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOSHORT 19
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOPBCC 20
	#define WLAN_MGMT_STATUS_ASSOC_DENIED_NOAGILITY 21

	/-- Auth Algorithm Field ---------------------------/
	#define WLAN_AUTH_ALG_OPENSYSTEM 0
	#define WLAN_AUTH_ALG_SHAREDKEY 1

	/-- Management Frame Field Offsets -------------/
	/* Note: Not all fields are listed because of variable lengths, */
	/* see the code in p80211.c to see how we search for fields */
	/* Note: These offsets are from the start of the frame data */

	#define WLAN_BEACON_OFF_TS 0
	#define WLAN_BEACON_OFF_BCN_int 8
	#define WLAN_BEACON_OFF_CAPINFO 10
	#define WLAN_BEACON_OFF_SSID 12

	#define WLAN_DISASSOC_OFF_REASON 0

	#define WLAN_ASSOCREQ_OFF_CAP_INFO 0
	#define WLAN_ASSOCREQ_OFF_LISTEN_int 2
	#define WLAN_ASSOCREQ_OFF_SSID 4

	#define WLAN_ASSOCRESP_OFF_CAP_INFO 0
	#define WLAN_ASSOCRESP_OFF_STATUS 2
	#define WLAN_ASSOCRESP_OFF_AID 4
	#define WLAN_ASSOCRESP_OFF_SUPP_RATES 6

	#define WLAN_REASSOCREQ_OFF_CAP_INFO 0
	#define WLAN_REASSOCREQ_OFF_LISTEN_int 2
	#define WLAN_REASSOCREQ_OFF_CURR_AP 4
	#define WLAN_REASSOCREQ_OFF_SSID 10

	#define WLAN_REASSOCRESP_OFF_CAP_INFO 0
	#define WLAN_REASSOCRESP_OFF_STATUS 2
	#define WLAN_REASSOCRESP_OFF_AID 4
	#define WLAN_REASSOCRESP_OFF_SUPP_RATES 6

	#define WLAN_PROBEREQ_OFF_SSID 0

	#define WLAN_PROBERESP_OFF_TS 0
	#define WLAN_PROBERESP_OFF_BCN_int 8
	#define WLAN_PROBERESP_OFF_CAP_INFO 10
	#define WLAN_PROBERESP_OFF_SSID 12

	#define WLAN_AUTHEN_OFF_AUTH_ALG 0
	#define WLAN_AUTHEN_OFF_AUTH_SEQ 2
	#define WLAN_AUTHEN_OFF_STATUS 4
	#define WLAN_AUTHEN_OFF_CHALLENGE 6

	#define WLAN_DEAUTHEN_OFF_REASON 0

	/-- Capability Field ---------------------------/
	#define WLAN_GET_MGMT_CAP_INFO_ESS(n) ((n) & BIT(0))
	#define WLAN_GET_MGMT_CAP_INFO_IBSS(n) (((n) & BIT(1)) >> 1)
	#define WLAN_GET_MGMT_CAP_INFO_CFPOLLABLE(n) (((n) & BIT(2)) >> 2)
	#define WLAN_GET_MGMT_CAP_INFO_CFPOLLREQ(n) (((n) & BIT(3)) >> 3)
	#define WLAN_GET_MGMT_CAP_INFO_PRIVACY(n) (((n) & BIT(4)) >> 4)
	/* p80211b additions */
	#define WLAN_GET_MGMT_CAP_INFO_SHORT(n) (((n) & BIT(5)) >> 5)
	#define WLAN_GET_MGMT_CAP_INFO_PBCC(n) (((n) & BIT(6)) >> 6)
	#define WLAN_GET_MGMT_CAP_INFO_AGILITY(n) (((n) & BIT(7)) >> 7)

	#define WLAN_SET_MGMT_CAP_INFO_ESS(n) (n)
	#define WLAN_SET_MGMT_CAP_INFO_IBSS(n) ((n) << 1)
	#define WLAN_SET_MGMT_CAP_INFO_CFPOLLABLE(n) ((n) << 2)
	#define WLAN_SET_MGMT_CAP_INFO_CFPOLLREQ(n) ((n) << 3)
	#define WLAN_SET_MGMT_CAP_INFO_PRIVACY(n) ((n) << 4)
	/* p80211b additions */
	#define WLAN_SET_MGMT_CAP_INFO_SHORT(n) ((n) << 5)
	#define WLAN_SET_MGMT_CAP_INFO_PBCC(n) ((n) << 6)
	#define WLAN_SET_MGMT_CAP_INFO_AGILITY(n) ((n) << 7)

	/-- Information Element Types --------------------/
	/* prototype structure, all IEs start with these members */

	typedef struct wlan_ie {
	u8 eid;
	u8 len;
	} __attribute__ ((packed)) wlan_ie_t;

	/-- Service Set Identity (SSID) -----------------/
	typedef struct wlan_ie_ssid {
	u8 eid;
	u8 len;
	u8 ssid[1]; /* may be zero, ptrs may overlap */
	} __attribute__ ((packed)) wlan_ie_ssid_t;

	/-- Supported Rates -----------------------------/
	typedef struct wlan_ie_supp_rates {
	u8 eid;
	u8 len;
	u8 rates[1]; /* had better be at LEAST one! */
	} __attribute__ ((packed)) wlan_ie_supp_rates_t;

	/-- FH Parameter Set ----------------------------/
	typedef struct wlan_ie_fh_parms {
	u8 eid;
	u8 len;
	u16 dwell;
	u8 hopset;
	u8 hoppattern;
	u8 hopindex;
	} __attribute__ ((packed)) wlan_ie_fh_parms_t;

	/-- DS Parameter Set ----------------------------/
	typedef struct wlan_ie_ds_parms {
	u8 eid;
	u8 len;
	u8 curr_ch;
	} __attribute__ ((packed)) wlan_ie_ds_parms_t;

	/-- CF Parameter Set ----------------------------/

	typedef struct wlan_ie_cf_parms {
	u8 eid;
	u8 len;
	u8 cfp_cnt;
	u8 cfp_period;
	u16 cfp_maxdur;
	u16 cfp_durremaining;
	} __attribute__ ((packed)) wlan_ie_cf_parms_t;

	/-- TIM ------------------------------------------/
	typedef struct wlan_ie_tim {
	u8 eid;
	u8 len;
	u8 dtim_cnt;
	u8 dtim_period;
	u8 bitmap_ctl;
	u8 virt_bm[1];
	} __attribute__ ((packed)) wlan_ie_tim_t;

	/-- IBSS Parameter Set ---------------------------/
	typedef struct wlan_ie_ibss_parms {
	u8 eid;
	u8 len;
	u16 atim_win;
	} __attribute__ ((packed)) wlan_ie_ibss_parms_t;

	/-- Challenge Text ------------------------------/
	typedef struct wlan_ie_challenge {
	u8 eid;
	u8 len;
	u8 challenge[1];
	} __attribute__ ((packed)) wlan_ie_challenge_t;

	/-------------------------------------------------/
	/* Frame Types */

	/* prototype structure, all mgmt frame types will start with these members */
	typedef struct wlan_fr_mgmt {
	u16 type;
	u16 len; /* DOES NOT include CRC !!!! */
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	/-- info elements ----------/
	} wlan_fr_mgmt_t;

	/-- Beacon ---------------------------------------/
	typedef struct wlan_fr_beacon {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u64 *ts;
	u16 *bcn_int;
	u16 *cap_info;
	/-- info elements ----------/
	wlan_ie_ssid_t *ssid;
	wlan_ie_supp_rates_t *supp_rates;
	wlan_ie_fh_parms_t *fh_parms;
	wlan_ie_ds_parms_t *ds_parms;
	wlan_ie_cf_parms_t *cf_parms;
	wlan_ie_ibss_parms_t *ibss_parms;
	wlan_ie_tim_t *tim;

	} wlan_fr_beacon_t;

	/-- IBSS ATIM ------------------------------------/
	typedef struct wlan_fr_ibssatim {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;

	/-- fixed fields -----------/
	/-- info elements ----------/

	/* this frame type has a null body */

	} wlan_fr_ibssatim_t;

	/-- Disassociation -------------------------------/
	typedef struct wlan_fr_disassoc {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *reason;

	/-- info elements ----------/

	} wlan_fr_disassoc_t;

	/-- Association Request --------------------------/
	typedef struct wlan_fr_assocreq {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *cap_info;
	u16 *listen_int;
	/-- info elements ----------/
	wlan_ie_ssid_t *ssid;
	wlan_ie_supp_rates_t *supp_rates;

	} wlan_fr_assocreq_t;

	/-- Association Response -------------------------/
	typedef struct wlan_fr_assocresp {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *cap_info;
	u16 *status;
	u16 *aid;
	/-- info elements ----------/
	wlan_ie_supp_rates_t *supp_rates;

	} wlan_fr_assocresp_t;

	/-- Reassociation Request ------------------------/
	typedef struct wlan_fr_reassocreq {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *cap_info;
	u16 *listen_int;
	u8 *curr_ap;
	/-- info elements ----------/
	wlan_ie_ssid_t *ssid;
	wlan_ie_supp_rates_t *supp_rates;

	} wlan_fr_reassocreq_t;

	/-- Reassociation Response -----------------------/
	typedef struct wlan_fr_reassocresp {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *cap_info;
	u16 *status;
	u16 *aid;
	/-- info elements ----------/
	wlan_ie_supp_rates_t *supp_rates;

	} wlan_fr_reassocresp_t;

	/-- Probe Request --------------------------------/
	typedef struct wlan_fr_probereq {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	/-- info elements ----------/
	wlan_ie_ssid_t *ssid;
	wlan_ie_supp_rates_t *supp_rates;

	} wlan_fr_probereq_t;

	/-- Probe Response -------------------------------/
	typedef struct wlan_fr_proberesp {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u64 *ts;
	u16 *bcn_int;
	u16 *cap_info;
	/-- info elements ----------/
	wlan_ie_ssid_t *ssid;
	wlan_ie_supp_rates_t *supp_rates;
	wlan_ie_fh_parms_t *fh_parms;
	wlan_ie_ds_parms_t *ds_parms;
	wlan_ie_cf_parms_t *cf_parms;
	wlan_ie_ibss_parms_t *ibss_parms;
	} wlan_fr_proberesp_t;

	/-- Authentication -------------------------------/
	typedef struct wlan_fr_authen {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *auth_alg;
	u16 *auth_seq;
	u16 *status;
	/-- info elements ----------/
	wlan_ie_challenge_t *challenge;

	} wlan_fr_authen_t;

	/-- Deauthenication -----------------------------/
	typedef struct wlan_fr_deauthen {
	u16 type;
	u16 len;
	u8 *buf;
	p80211_hdr_t *hdr;
	/* used for target specific data, skb in Linux */
	void *priv;
	/-- fixed fields -----------/
	u16 *reason;

	/-- info elements ----------/

	} wlan_fr_deauthen_t;

	void wlan_mgmt_encode_beacon(wlan_fr_beacon_t * f);
	void wlan_mgmt_decode_beacon(wlan_fr_beacon_t * f);
	void wlan_mgmt_encode_disassoc(wlan_fr_disassoc_t * f);
	void wlan_mgmt_decode_disassoc(wlan_fr_disassoc_t * f);
	void wlan_mgmt_encode_assocreq(wlan_fr_assocreq_t * f);
	void wlan_mgmt_decode_assocreq(wlan_fr_assocreq_t * f);
	void wlan_mgmt_encode_assocresp(wlan_fr_assocresp_t * f);
	void wlan_mgmt_decode_assocresp(wlan_fr_assocresp_t * f);
	void wlan_mgmt_encode_reassocreq(wlan_fr_reassocreq_t * f);
	void wlan_mgmt_decode_reassocreq(wlan_fr_reassocreq_t * f);
	void wlan_mgmt_encode_reassocresp(wlan_fr_reassocresp_t * f);
	void wlan_mgmt_decode_reassocresp(wlan_fr_reassocresp_t * f);
	void wlan_mgmt_encode_probereq(wlan_fr_probereq_t * f);
	void wlan_mgmt_decode_probereq(wlan_fr_probereq_t * f);
	void wlan_mgmt_encode_proberesp(wlan_fr_proberesp_t * f);
	void wlan_mgmt_decode_proberesp(wlan_fr_proberesp_t * f);
	void wlan_mgmt_encode_authen(wlan_fr_authen_t * f);
	void wlan_mgmt_decode_authen(wlan_fr_authen_t * f);
	void wlan_mgmt_encode_deauthen(wlan_fr_deauthen_t * f);
	void wlan_mgmt_decode_deauthen(wlan_fr_deauthen_t * f);

	#endif /* _P80211MGMT_H */