Subversion Repositories test_project

/*

 * IEEE 802.11 defines

 *

 * Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen

 * <jkmaline@cc.hut.fi>

 * Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>

 * Copyright (c) 2005, Devicescape Software, Inc.

 * Copyright (c) 2006, Michael Wu <flamingice@sourmilk.net>

 *

 * This program is free software; you can redistribute it and/or modify

 * it under the terms of the GNU General Public License version 2 as

 * published by the Free Software Foundation.

 */

#ifndef IEEE80211_H

#define IEEE80211_H

#include <linux/types.h>

#include <asm/byteorder.h>

#define FCS_LEN 4

#define IEEE80211_FCTL_VERS             0x0003

#define IEEE80211_FCTL_FTYPE            0x000c

#define IEEE80211_FCTL_STYPE            0x00f0

#define IEEE80211_FCTL_TODS             0x0100

#define IEEE80211_FCTL_FROMDS           0x0200

#define IEEE80211_FCTL_MOREFRAGS        0x0400

#define IEEE80211_FCTL_RETRY            0x0800

#define IEEE80211_FCTL_PM               0x1000

#define IEEE80211_FCTL_MOREDATA         0x2000

#define IEEE80211_FCTL_PROTECTED        0x4000

#define IEEE80211_FCTL_ORDER            0x8000

#define IEEE80211_SCTL_FRAG             0x000F

#define IEEE80211_SCTL_SEQ              0xFFF0

#define IEEE80211_FTYPE_MGMT            0x0000

#define IEEE80211_FTYPE_CTL             0x0004

#define IEEE80211_FTYPE_DATA            0x0008

/* management */

#define IEEE80211_STYPE_ASSOC_REQ       0x0000

#define IEEE80211_STYPE_ASSOC_RESP      0x0010

#define IEEE80211_STYPE_REASSOC_REQ     0x0020

#define IEEE80211_STYPE_REASSOC_RESP    0x0030

#define IEEE80211_STYPE_PROBE_REQ       0x0040

#define IEEE80211_STYPE_PROBE_RESP      0x0050

#define IEEE80211_STYPE_BEACON          0x0080

#define IEEE80211_STYPE_ATIM            0x0090

#define IEEE80211_STYPE_DISASSOC        0x00A0

#define IEEE80211_STYPE_AUTH            0x00B0

#define IEEE80211_STYPE_DEAUTH          0x00C0

#define IEEE80211_STYPE_ACTION          0x00D0

/* control */

#define IEEE80211_STYPE_PSPOLL          0x00A0

#define IEEE80211_STYPE_RTS             0x00B0

#define IEEE80211_STYPE_CTS             0x00C0

#define IEEE80211_STYPE_ACK             0x00D0

#define IEEE80211_STYPE_CFEND           0x00E0

#define IEEE80211_STYPE_CFENDACK        0x00F0

/* data */

#define IEEE80211_STYPE_DATA                    0x0000

#define IEEE80211_STYPE_DATA_CFACK              0x0010

#define IEEE80211_STYPE_DATA_CFPOLL             0x0020

#define IEEE80211_STYPE_DATA_CFACKPOLL          0x0030

#define IEEE80211_STYPE_NULLFUNC                0x0040

#define IEEE80211_STYPE_CFACK                   0x0050

#define IEEE80211_STYPE_CFPOLL                  0x0060

#define IEEE80211_STYPE_CFACKPOLL               0x0070

#define IEEE80211_STYPE_QOS_DATA                0x0080

#define IEEE80211_STYPE_QOS_DATA_CFACK          0x0090

#define IEEE80211_STYPE_QOS_DATA_CFPOLL         0x00A0

#define IEEE80211_STYPE_QOS_DATA_CFACKPOLL      0x00B0

#define IEEE80211_STYPE_QOS_NULLFUNC            0x00C0

#define IEEE80211_STYPE_QOS_CFACK               0x00D0

#define IEEE80211_STYPE_QOS_CFPOLL              0x00E0

#define IEEE80211_STYPE_QOS_CFACKPOLL           0x00F0

/* miscellaneous IEEE 802.11 constants */

#define IEEE80211_MAX_FRAG_THRESHOLD    2346

#define IEEE80211_MAX_RTS_THRESHOLD     2347

#define IEEE80211_MAX_AID               2007

#define IEEE80211_MAX_TIM_LEN           251

#define IEEE80211_MAX_DATA_LEN          2304

/* Maximum size for the MA-UNITDATA primitive, 802.11 standard section

   6.2.1.1.2.

   The figure in section 7.1.2 suggests a body size of up to 2312

   bytes is allowed, which is a bit confusing, I suspect this

   represents the 2304 bytes of real data, plus a possible 8 bytes of

   WEP IV and ICV. (this interpretation suggested by Ramiro Barreiro) */

#define IEEE80211_MAX_SSID_LEN          32

struct ieee80211_hdr {

        __le16 frame_control;

        __le16 duration_id;

        u8 addr1[6];

        u8 addr2[6];

        u8 addr3[6];

        __le16 seq_ctrl;

        u8 addr4[6];

} __attribute__ ((packed));

struct ieee80211_mgmt {

        __le16 frame_control;

        __le16 duration;

        u8 da[6];

        u8 sa[6];

        u8 bssid[6];

        __le16 seq_ctrl;

        union {

                struct {

                        __le16 auth_alg;

                        __le16 auth_transaction;

                        __le16 status_code;

                        /* possibly followed by Challenge text */

                        u8 variable[0];

                } __attribute__ ((packed)) auth;

                struct {

                        __le16 reason_code;

                } __attribute__ ((packed)) deauth;

                struct {

                        __le16 capab_info;

                        __le16 listen_interval;

                        /* followed by SSID and Supported rates */

                        u8 variable[0];

                } __attribute__ ((packed)) assoc_req;

                struct {

                        __le16 capab_info;

                        __le16 status_code;

                        __le16 aid;

                        /* followed by Supported rates */

                        u8 variable[0];

                } __attribute__ ((packed)) assoc_resp, reassoc_resp;

                struct {

                        __le16 capab_info;

                        __le16 listen_interval;

                        u8 current_ap[6];

                        /* followed by SSID and Supported rates */

                        u8 variable[0];

                } __attribute__ ((packed)) reassoc_req;

                struct {

                        __le16 reason_code;

                } __attribute__ ((packed)) disassoc;

                struct {

                        __le64 timestamp;

                        __le16 beacon_int;

                        __le16 capab_info;

                        /* followed by some of SSID, Supported rates,

                         * FH Params, DS Params, CF Params, IBSS Params, TIM */

                        u8 variable[0];

                } __attribute__ ((packed)) beacon;

                struct {

                        /* only variable items: SSID, Supported rates */

                        u8 variable[0];

                } __attribute__ ((packed)) probe_req;

                struct {

                        __le64 timestamp;

                        __le16 beacon_int;

                        __le16 capab_info;

                        /* followed by some of SSID, Supported rates,

                         * FH Params, DS Params, CF Params, IBSS Params */

                        u8 variable[0];

                } __attribute__ ((packed)) probe_resp;

                struct {

                        u8 category;

                        union {

                                struct {

                                        u8 action_code;

                                        u8 dialog_token;

                                        u8 status_code;

                                        u8 variable[0];

                                } __attribute__ ((packed)) wme_action;

                                struct{

                                        u8 action_code;

                                        u8 element_id;

                                        u8 length;

                                        u8 switch_mode;

                                        u8 new_chan;

                                        u8 switch_count;

                                } __attribute__((packed)) chan_switch;

                        } u;

                } __attribute__ ((packed)) action;

        } u;

} __attribute__ ((packed));

/* Control frames */

struct ieee80211_rts {

        __le16 frame_control;

        __le16 duration;

        u8 ra[6];

        u8 ta[6];

} __attribute__ ((packed));

struct ieee80211_cts {

        __le16 frame_control;

        __le16 duration;

        u8 ra[6];

} __attribute__ ((packed));

/* Authentication algorithms */

#define WLAN_AUTH_OPEN 0

#define WLAN_AUTH_SHARED_KEY 1

#define WLAN_AUTH_FAST_BSS_TRANSITION 2

#define WLAN_AUTH_LEAP 128

#define WLAN_AUTH_CHALLENGE_LEN 128

#define WLAN_CAPABILITY_ESS             (1<<0)

#define WLAN_CAPABILITY_IBSS            (1<<1)

#define WLAN_CAPABILITY_CF_POLLABLE     (1<<2)

#define WLAN_CAPABILITY_CF_POLL_REQUEST (1<<3)

#define WLAN_CAPABILITY_PRIVACY         (1<<4)

#define WLAN_CAPABILITY_SHORT_PREAMBLE  (1<<5)

#define WLAN_CAPABILITY_PBCC            (1<<6)

#define WLAN_CAPABILITY_CHANNEL_AGILITY (1<<7)

/* 802.11h */

#define WLAN_CAPABILITY_SPECTRUM_MGMT   (1<<8)

#define WLAN_CAPABILITY_QOS             (1<<9)

#define WLAN_CAPABILITY_SHORT_SLOT_TIME (1<<10)

#define WLAN_CAPABILITY_DSSS_OFDM       (1<<13)

/* 802.11g ERP information element */

#define WLAN_ERP_NON_ERP_PRESENT (1<<0)

#define WLAN_ERP_USE_PROTECTION (1<<1)

#define WLAN_ERP_BARKER_PREAMBLE (1<<2)

/* WLAN_ERP_BARKER_PREAMBLE values */

enum {

        WLAN_ERP_PREAMBLE_SHORT = 0,

        WLAN_ERP_PREAMBLE_LONG = 1,

};

/* Status codes */

enum ieee80211_statuscode {

        WLAN_STATUS_SUCCESS = 0,

        WLAN_STATUS_UNSPECIFIED_FAILURE = 1,

        WLAN_STATUS_CAPS_UNSUPPORTED = 10,

        WLAN_STATUS_REASSOC_NO_ASSOC = 11,

        WLAN_STATUS_ASSOC_DENIED_UNSPEC = 12,

        WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG = 13,

        WLAN_STATUS_UNKNOWN_AUTH_TRANSACTION = 14,

        WLAN_STATUS_CHALLENGE_FAIL = 15,

        WLAN_STATUS_AUTH_TIMEOUT = 16,

        WLAN_STATUS_AP_UNABLE_TO_HANDLE_NEW_STA = 17,

        WLAN_STATUS_ASSOC_DENIED_RATES = 18,

        /* 802.11b */

        WLAN_STATUS_ASSOC_DENIED_NOSHORTPREAMBLE = 19,

        WLAN_STATUS_ASSOC_DENIED_NOPBCC = 20,

        WLAN_STATUS_ASSOC_DENIED_NOAGILITY = 21,

        /* 802.11h */

        WLAN_STATUS_ASSOC_DENIED_NOSPECTRUM = 22,

        WLAN_STATUS_ASSOC_REJECTED_BAD_POWER = 23,

        WLAN_STATUS_ASSOC_REJECTED_BAD_SUPP_CHAN = 24,

        /* 802.11g */

        WLAN_STATUS_ASSOC_DENIED_NOSHORTTIME = 25,

        WLAN_STATUS_ASSOC_DENIED_NODSSSOFDM = 26,

        /* 802.11i */

        WLAN_STATUS_INVALID_IE = 40,

        WLAN_STATUS_INVALID_GROUP_CIPHER = 41,

        WLAN_STATUS_INVALID_PAIRWISE_CIPHER = 42,

        WLAN_STATUS_INVALID_AKMP = 43,

        WLAN_STATUS_UNSUPP_RSN_VERSION = 44,

        WLAN_STATUS_INVALID_RSN_IE_CAP = 45,

        WLAN_STATUS_CIPHER_SUITE_REJECTED = 46,

};

/* Reason codes */

enum ieee80211_reasoncode {

        WLAN_REASON_UNSPECIFIED = 1,

        WLAN_REASON_PREV_AUTH_NOT_VALID = 2,

        WLAN_REASON_DEAUTH_LEAVING = 3,

        WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY = 4,

        WLAN_REASON_DISASSOC_AP_BUSY = 5,

        WLAN_REASON_CLASS2_FRAME_FROM_NONAUTH_STA = 6,

        WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA = 7,

        WLAN_REASON_DISASSOC_STA_HAS_LEFT = 8,

        WLAN_REASON_STA_REQ_ASSOC_WITHOUT_AUTH = 9,

        /* 802.11h */

        WLAN_REASON_DISASSOC_BAD_POWER = 10,

        WLAN_REASON_DISASSOC_BAD_SUPP_CHAN = 11,

        /* 802.11i */

        WLAN_REASON_INVALID_IE = 13,

        WLAN_REASON_MIC_FAILURE = 14,

        WLAN_REASON_4WAY_HANDSHAKE_TIMEOUT = 15,

        WLAN_REASON_GROUP_KEY_HANDSHAKE_TIMEOUT = 16,

        WLAN_REASON_IE_DIFFERENT = 17,

        WLAN_REASON_INVALID_GROUP_CIPHER = 18,

        WLAN_REASON_INVALID_PAIRWISE_CIPHER = 19,

        WLAN_REASON_INVALID_AKMP = 20,

        WLAN_REASON_UNSUPP_RSN_VERSION = 21,

        WLAN_REASON_INVALID_RSN_IE_CAP = 22,

        WLAN_REASON_IEEE8021X_FAILED = 23,

        WLAN_REASON_CIPHER_SUITE_REJECTED = 24,

};

/* Information Element IDs */

enum ieee80211_eid {

        WLAN_EID_SSID = 0,

        WLAN_EID_SUPP_RATES = 1,

        WLAN_EID_FH_PARAMS = 2,

        WLAN_EID_DS_PARAMS = 3,

        WLAN_EID_CF_PARAMS = 4,

        WLAN_EID_TIM = 5,

        WLAN_EID_IBSS_PARAMS = 6,

        WLAN_EID_CHALLENGE = 16,

        /* 802.11d */

        WLAN_EID_COUNTRY = 7,

        WLAN_EID_HP_PARAMS = 8,

        WLAN_EID_HP_TABLE = 9,

        WLAN_EID_REQUEST = 10,

        /* 802.11h */

        WLAN_EID_PWR_CONSTRAINT = 32,

        WLAN_EID_PWR_CAPABILITY = 33,

        WLAN_EID_TPC_REQUEST = 34,

        WLAN_EID_TPC_REPORT = 35,

        WLAN_EID_SUPPORTED_CHANNELS = 36,

        WLAN_EID_CHANNEL_SWITCH = 37,

        WLAN_EID_MEASURE_REQUEST = 38,

        WLAN_EID_MEASURE_REPORT = 39,

        WLAN_EID_QUIET = 40,

        WLAN_EID_IBSS_DFS = 41,

        /* 802.11g */

        WLAN_EID_ERP_INFO = 42,

        WLAN_EID_EXT_SUPP_RATES = 50,

        /* 802.11i */

        WLAN_EID_RSN = 48,

        WLAN_EID_WPA = 221,

        WLAN_EID_GENERIC = 221,

        WLAN_EID_VENDOR_SPECIFIC = 221,

        WLAN_EID_QOS_PARAMETER = 222

};

/* cipher suite selectors */

#define WLAN_CIPHER_SUITE_USE_GROUP     0x000FAC00

#define WLAN_CIPHER_SUITE_WEP40         0x000FAC01

#define WLAN_CIPHER_SUITE_TKIP          0x000FAC02

/* reserved:                            0x000FAC03 */

#define WLAN_CIPHER_SUITE_CCMP          0x000FAC04

#define WLAN_CIPHER_SUITE_WEP104        0x000FAC05

#define WLAN_MAX_KEY_LEN                32

/**

 * ieee80211_get_SA - get pointer to SA

 *

 * Given an 802.11 frame, this function returns the offset

 * to the source address (SA). It does not verify that the

 * header is long enough to contain the address, and the

 * header must be long enough to contain the frame control

 * field.

 *

 * @hdr: the frame

 */

static inline u8 *ieee80211_get_SA(struct ieee80211_hdr *hdr)

{

        u8 *raw = (u8 *) hdr;

        u8 tofrom = (*(raw+1)) & 3; /* get the TODS and FROMDS bits */

        switch (tofrom) {

                case 2:

                        return hdr->addr3;

                case 3:

                        return hdr->addr4;

        }

        return hdr->addr2;

}

/**

 * ieee80211_get_DA - get pointer to DA

 *

 * Given an 802.11 frame, this function returns the offset

 * to the destination address (DA). It does not verify that

 * the header is long enough to contain the address, and the

 * header must be long enough to contain the frame control

 * field.

 *

 * @hdr: the frame

 */

static inline u8 *ieee80211_get_DA(struct ieee80211_hdr *hdr)

{

        u8 *raw = (u8 *) hdr;

        u8 to_ds = (*(raw+1)) & 1; /* get the TODS bit */

        if (to_ds)

                return hdr->addr3;

        return hdr->addr1;

}

/**

 * ieee80211_get_morefrag - determine whether the MOREFRAGS bit is set

 *

 * This function determines whether the "more fragments" bit is set

 * in the frame.

 *

 * @hdr: the frame

 */

static inline int ieee80211_get_morefrag(struct ieee80211_hdr *hdr)

{

        return (le16_to_cpu(hdr->frame_control) &

                IEEE80211_FCTL_MOREFRAGS) != 0;

}

#endif /* IEEE80211_H */