/* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.9.4.2 2005/11/13 12:07:44 guy Exp $ (LBL) */

/*

* Copyright (c) 2001

* Fortress Technologies

* Charlie Lenahan ( [email protected] )

*

* Redistribution and use in source and binary forms, with or without

* modification, are permitted provided that: (1) source code distributions

* retain the above copyright notice and this paragraph in its entirety, (2)

* distributions including binary code include the above copyright notice and

* this paragraph in its entirety in the documentation or other materials

* provided with the distribution, and (3) all advertising materials mentioning

* features or use of this software display the following acknowledgement:

* ``This product includes software developed by the University of California,

* Lawrence Berkeley Laboratory and its contributors.'' Neither the name of

* the University nor the names of its contributors may be used to endorse

* or promote products derived from this software without specific prior

* written permission.

* THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED

* WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF

* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.

*/

/* Lengths of 802.11 header components. */

#define IEEE802_11_FC_LEN 2

#define IEEE802_11_DUR_LEN 2

#define IEEE802_11_DA_LEN 6

#define IEEE802_11_SA_LEN 6

#define IEEE802_11_BSSID_LEN 6

#define IEEE802_11_RA_LEN 6

#define IEEE802_11_TA_LEN 6

#define IEEE802_11_SEQ_LEN 2

#define IEEE802_11_IV_LEN 3

#define IEEE802_11_KID_LEN 1

/* Frame check sequence length. */

#define IEEE802_11_FCS_LEN 4

/* Lengths of beacon components. */

#define IEEE802_11_TSTAMP_LEN 8

#define IEEE802_11_BCNINT_LEN 2

#define IEEE802_11_CAPINFO_LEN 2

#define IEEE802_11_LISTENINT_LEN 2

#define IEEE802_11_AID_LEN 2

#define IEEE802_11_STATUS_LEN 2

#define IEEE802_11_REASON_LEN 2

/* Length of previous AP in reassocation frame */

#define IEEE802_11_AP_LEN 6

#define T_MGMT 0x0 /* management */

#define T_CTRL 0x1 /* control */

#define T_DATA 0x2 /* data */

#define T_RESV 0x3 /* reserved */

#define ST_ASSOC_REQUEST 0x0

#define ST_ASSOC_RESPONSE 0x1

#define ST_REASSOC_REQUEST 0x2

#define ST_REASSOC_RESPONSE 0x3

#define ST_PROBE_REQUEST 0x4

#define ST_PROBE_RESPONSE 0x5

/* RESERVED 0x6 */

/* RESERVED 0x7 */

#define ST_BEACON 0x8

#define ST_ATIM 0x9

#define ST_DISASSOC 0xA

#define ST_AUTH 0xB

#define ST_DEAUTH 0xC

/* RESERVED 0xD */

/* RESERVED 0xE */

/* RESERVED 0xF */

#define CTRL_PS_POLL 0xA

#define CTRL_RTS 0xB

#define CTRL_CTS 0xC

#define CTRL_ACK 0xD

#define CTRL_CF_END 0xE

#define CTRL_END_ACK 0xF

#define DATA_DATA 0x0

#define DATA_DATA_CF_ACK 0x1

#define DATA_DATA_CF_POLL 0x2

#define DATA_DATA_CF_ACK_POLL 0x3

#define DATA_NODATA 0x4

#define DATA_NODATA_CF_ACK 0x5

#define DATA_NODATA_CF_POLL 0x6

#define DATA_NODATA_CF_ACK_POLL 0x7

/*

* Bits in the frame control field.

*/

#define FC_VERSION(fc) ((fc) & 0x3)

#define FC_TYPE(fc) (((fc) >> 2) & 0x3)

#define FC_SUBTYPE(fc) (((fc) >> 4) & 0xF)

#define FC_TO_DS(fc) ((fc) & 0x0100)

#define FC_FROM_DS(fc) ((fc) & 0x0200)

#define FC_MORE_FLAG(fc) ((fc) & 0x0400)

#define FC_RETRY(fc) ((fc) & 0x0800)

#define FC_POWER_MGMT(fc) ((fc) & 0x1000)

#define FC_MORE_DATA(fc) ((fc) & 0x2000)

#define FC_WEP(fc) ((fc) & 0x4000)

#define FC_ORDER(fc) ((fc) & 0x8000)

struct mgmt_header_t {

};

#define MGMT_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN \

#define CAPABILITY_ESS(cap) ((cap) & 0x0001)

#define CAPABILITY_IBSS(cap) ((cap) & 0x0002)

#define CAPABILITY_CFP(cap) ((cap) & 0x0004)

#define CAPABILITY_CFP_REQ(cap) ((cap) & 0x0008)

#define CAPABILITY_PRIVACY(cap) ((cap) & 0x0010)

typedef enum {

NOT_PRESENT,

PRESENT,

TRUNCATED

} elem_status_t;

struct ssid_t {

};

struct rates_t {

};

struct challenge_t {

};

struct fh_t {

};

struct ds_t {

};

struct cf_t {

};

struct tim_t {

};

#define E_SSID 0

#define E_RATES 1

#define E_FH 2

#define E_DS 3

#define E_CF 4

#define E_TIM 5

#define E_IBSS 6

/* reserved 7 */

/* reserved 8 */

/* reserved 9 */

/* reserved 10 */

/* reserved 11 */

/* reserved 12 */

/* reserved 13 */

/* reserved 14 */

/* reserved 15 */

/* reserved 16 */

#define E_CHALLENGE 16

/* reserved 17 */

/* reserved 18 */

/* reserved 19 */

/* reserved 16 */

/* reserved 16 */

struct mgmt_body_t {

};

struct ctrl_rts_t {

};

#define CTRL_RTS_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN \

IEEE802_11_RA_LEN IEEE802_11_TA_LEN)

struct ctrl_cts_t {

};

#define CTRL_CTS_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN IEEE802_11_RA_LEN)

struct ctrl_ack_t {

};

#define CTRL_ACK_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN IEEE802_11_RA_LEN)

struct ctrl_ps_poll_t {

};

#define CTRL_PS_POLL_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_AID_LEN \

IEEE802_11_BSSID_LEN IEEE802_11_TA_LEN)

struct ctrl_end_t {

};

#define CTRL_END_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN \

IEEE802_11_RA_LEN IEEE802_11_BSSID_LEN)

struct ctrl_end_ack_t {

};

#define CTRL_END_ACK_HDRLEN (IEEE802_11_FC_LEN IEEE802_11_DUR_LEN \

IEEE802_11_RA_LEN IEEE802_11_BSSID_LEN)

#define IV_IV(iv) ((iv) & 0xFFFFFF)

#define IV_PAD(iv) (((iv) >> 24) & 0x3F)

#define IV_KEYID(iv) (((iv) >> 30) & 0x03)