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/*      $NetBSD: if_ieee80211.h,v 1.5 2000/07/21 04:47:40 onoe Exp $    */

/* $FreeBSD: src/sys/net/if_ieee80211.h,v 1.6 2002/04/11 05:43:10 imp Exp $ */

#ifndef _NET_IF_IEEE80211_H_

#define _NET_IF_IEEE80211_H_

/*

 * generic definitions for IEEE 802.11 frames

 */

struct ieee80211_frame {

        u_int8_t        i_fc[2];

        u_int8_t        i_dur[2];

        u_int8_t        i_addr1[ETHER_ADDR_LEN];

        u_int8_t        i_addr2[ETHER_ADDR_LEN];

        u_int8_t        i_addr3[ETHER_ADDR_LEN];

        u_int8_t        i_seq[2];

        /* possibly followed by addr4[ETHER_ADDR_LEN]; */

};

#define IEEE80211_FC0_VERSION_MASK              0x03

#define IEEE80211_FC0_VERSION_0                 0x00

#define IEEE80211_FC0_TYPE_MASK                 0x0c

#define IEEE80211_FC0_TYPE_MGT                  0x00

#define IEEE80211_FC0_TYPE_CTL                  0x04

#define IEEE80211_FC0_TYPE_DATA                 0x08

#define IEEE80211_FC0_SUBTYPE_MASK              0xf0

/* for TYPE_MGT */

#define IEEE80211_FC0_SUBTYPE_ASSOC_REQ         0x00

#define IEEE80211_FC0_SUBTYPE_ASSOC_RESP        0x10

#define IEEE80211_FC0_SUBTYPE_REASSOC_REQ       0x20

#define IEEE80211_FC0_SUBTYPE_REASSOC_RESP      0x30

#define IEEE80211_FC0_SUBTYPE_PROBE_REQ         0x40

#define IEEE80211_FC0_SUBTYPE_PROBE_RESP        0x50

#define IEEE80211_FC0_SUBTYPE_BEACON            0x80

#define IEEE80211_FC0_SUBTYPE_ATIM              0x90

#define IEEE80211_FC0_SUBTYPE_DISASSOC          0xa0

#define IEEE80211_FC0_SUBTYPE_AUTH              0xb0

#define IEEE80211_FC0_SUBTYPE_DEAUTH            0xc0

/* for TYPE_CTL */

#define IEEE80211_FC0_SUBTYPE_PS_POLL           0xa0

#define IEEE80211_FC0_SUBTYPE_RTS               0xb0

#define IEEE80211_FC0_SUBTYPE_CTS               0xc0

#define IEEE80211_FC0_SUBTYPE_ACK               0xd0

#define IEEE80211_FC0_SUBTYPE_CF_END            0xe0

#define IEEE80211_FC0_SUBTYPE_CF_END_ACK        0xf0

/* for TYPE_DATA (bit combination) */

#define IEEE80211_FC0_SUBTYPE_DATA              0x00

#define IEEE80211_FC0_SUBTYPE_CF_ACK            0x10

#define IEEE80211_FC0_SUBTYPE_CF_POLL           0x20

#define IEEE80211_FC0_SUBTYPE_CF_ACPL           0x30

#define IEEE80211_FC0_SUBTYPE_NODATA            0x40

#define IEEE80211_FC0_SUBTYPE_CFACK             0x50

#define IEEE80211_FC0_SUBTYPE_CFPOLL            0x60

#define IEEE80211_FC0_SUBTYPE_CF_ACK_CF_ACK     0x70

#define IEEE80211_FC1_DIR_MASK                  0x03

#define IEEE80211_FC1_DIR_NODS                  0x00    /* STA->STA */

#define IEEE80211_FC1_DIR_TODS                  0x01    /* STA->AP  */

#define IEEE80211_FC1_DIR_FROMDS                0x02    /* AP ->STA */

#define IEEE80211_FC1_DIR_DSTODS                0x03    /* AP ->AP  */

#define IEEE80211_FC1_MORE_FRAG                 0x04

#define IEEE80211_FC1_RETRY                     0x08

#define IEEE80211_FC1_PWR_MGT                   0x10

#define IEEE80211_FC1_MORE_DATA                 0x20

#define IEEE80211_FC1_WEP                       0x40

#define IEEE80211_FC1_ORDER                     0x80

#define IEEE80211_NWID_LEN                      32

/*

 * BEACON management packets

 *

 *      octect timestamp[8]

 *      octect beacon interval[2]

 *      octect capability information[2]

 *      information element

 *              octect elemid

 *              octect length

 *              octect information[length[

 */

typedef u_int8_t *      ieee80211_mgt_beacon_t;

#define IEEE80211_BEACON_INTERVAL(beacon) \

        (beacon[8] + (beacon[9] << 8))

#define IEEE80211_BEACON_CAPABILITY(beacon) \

        (beacon[10] + (beacon[11] << 8))

#define IEEE80211_CAPINFO_ESS                   0x01

#define IEEE80211_CAPINFO_IBSS                  0x02

#define IEEE80211_CAPINFO_CF_POLLABLE           0x04

#define IEEE80211_CAPINFO_CF_POLLREQ            0x08

#define IEEE80211_CAPINFO_PRIVACY               0x10

/*

 * Management information elements

 */

struct ieee80211_information {

        char    ssid[IEEE80211_NWID_LEN+1];

        struct rates {

                u_int8_t        *p;

        } rates;

        struct fh {

                u_int16_t       dwell;

                u_int8_t        set;

                u_int8_t        pattern;

                u_int8_t        index;

        } fh;

        struct ds {

                u_int8_t        channel;

        } ds;

        struct cf {

                u_int8_t        count;

                u_int8_t        period;

                u_int8_t        maxdur[2];

                u_int8_t        dur[2];

        } cf;

        struct tim {

                u_int8_t        count;

                u_int8_t        period;

                u_int8_t        bitctl;

                /* u_int8_t     pvt[251]; The driver never needs to use this */

        } tim;

        struct ibss {

                u_int16_t       atim;

        } ibss;

        struct challenge {

                u_int8_t        *p;

                u_int8_t        len;

        } challenge;

};

#define IEEE80211_ELEMID_SSID                   0

#define IEEE80211_ELEMID_RATES                  1

#define IEEE80211_ELEMID_FHPARMS                2

#define IEEE80211_ELEMID_DSPARMS                3

#define IEEE80211_ELEMID_CFPARMS                4

#define IEEE80211_ELEMID_TIM                    5

#define IEEE80211_ELEMID_IBSSPARMS              6

#define IEEE80211_ELEMID_CHALLENGE              16

/*

 * AUTH management packets

 *

 *      octect algo[2]

 *      octect seq[2]

 *      octect status[2]

 *      octect chal.id

 *      octect chal.length

 *      octect 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_OPEN_REQUEST             1

#define IEEE80211_AUTH_OPEN_RESPONSE            2

#define IEEE80211_AUTH_SHARED_REQUEST           1

#define IEEE80211_AUTH_SHARED_CHALLENGE         2

#define IEEE80211_AUTH_SHARED_RESPONSE          3

#define IEEE80211_AUTH_SHARED_PASS              4

/*

 * Reason codes

 *

 * Unlisted codes are reserved

 */

#define IEEE80211_REASON_UNSPECIFIED            1

#define IEEE80211_REASON_AUTH_EXPIRE            2

#define IEEE80211_REASON_AUTH_LEAVE             3

#define IEEE80211_REASON_ASSOC_EXPIRE           4

#define IEEE80211_REASON_ASSOC_TOOMANY          5

#define IEEE80211_REASON_NOT_AUTHED             6  

#define IEEE80211_REASON_NOT_ASSOCED            7

#define IEEE80211_REASON_ASSOC_LEAVE            8

#define IEEE80211_REASON_ASSOC_NOT_AUTHED       9

/*

 * Status code

 *

 * Unlisted codes are reserved

 */

#define IEEE80211_STATUS_SUCCESS                0x0000

#define IEEE80211_STATUS_UNSPECIFIED            1

#define IEEE80211_STATUS_CAPINFO                10

#define IEEE80211_STATUS_NOT_ASSOCED            11

#define IEEE80211_STATUS_OTHER                  12

#define IEEE80211_STATUS_ALG                    13

#define IEEE80211_STATUS_SEQUENCE               14

#define IEEE80211_STATUS_CHALLENGE              15

#define IEEE80211_STATUS_TIMEOUT                16

#define IEEE80211_STATUS_TOO_MANY_STATIONS      17

#define IEEE80211_STATUS_RATES                  18

#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 */

/* nwid is pointed at by ifr.ifr_data */

struct ieee80211_nwid {

        u_int8_t        i_len;

        u_int8_t        i_nwid[IEEE80211_NWID_LEN];

};

#define SIOCS80211NWID          _IOWR('i', 230, struct ifreq)

#define SIOCG80211NWID          _IOWR('i', 231, struct ifreq)

/* the first member must be matched with struct ifreq */

struct ieee80211_nwkey {

        char            i_name[IFNAMSIZ];       /* if_name, e.g. "wi0" */

        int             i_wepon;                /* wep enabled flag */

        int             i_defkid;               /* default encrypt key id */

        struct {

                int             i_keylen;

                u_int8_t        *i_keydat;

        }               i_key[IEEE80211_WEP_NKID];

};

#define SIOCS80211NWKEY          _IOW('i', 232, struct ieee80211_nwkey)

#define SIOCG80211NWKEY         _IOWR('i', 233, struct ieee80211_nwkey)

#define IEEE80211_WEP_NOSUP     -1

#define IEEE80211_WEP_OFF       0

#define IEEE80211_WEP_ON        1

#define IEEE80211_WEP_MIXED     2

#define IEEE80211_AUTH_NONE     0

#define IEEE80211_AUTH_OPEN     1

#define IEEE80211_AUTH_SHARED   2

#define IEEE80211_POWERSAVE_NOSUP       -1

#define IEEE80211_POWERSAVE_OFF         0

#define IEEE80211_POWERSAVE_CAM         1

#define IEEE80211_POWERSAVE_PSP         2

#define IEEE80211_POWERSAVE_PSP_CAM     3

#define IEEE80211_POWERSAVE_ON          IEEE80211_POWERSAVE_CAM

/* the first member must be matched with struct ifreq */

struct ieee80211req {

        char            i_name[IFNAMSIZ];       /* if_name, e.g. "wi0" */

        u_int16_t       i_type;                 /* req type */

        int16_t         i_val;                  /* Index or simple value */

        int16_t         i_len;                  /* Index or simple value */

        void            *i_data;                /* Extra data */

};

#define SIOCS80211               _IOW('i', 234, struct ieee80211req)

#define SIOCG80211              _IOWR('i', 235, struct ieee80211req)

#define IEEE80211_IOC_SSID              1

#define IEEE80211_IOC_NUMSSIDS          2

#define IEEE80211_IOC_WEP               3

#define IEEE80211_IOC_WEPKEY            4

#define IEEE80211_IOC_NUMWEPKEYS        5

#define IEEE80211_IOC_WEPTXKEY          6

#define IEEE80211_IOC_AUTHMODE          7

#define IEEE80211_IOC_STATIONNAME       8

#define IEEE80211_IOC_CHANNEL           9

#define IEEE80211_IOC_POWERSAVE         10

#define IEEE80211_IOC_POWERSAVESLEEP    11

#endif /* !_NET_IF_IEEE80211_H_ */