diff options
Diffstat (limited to 'contrib/tcpdump/ieee802_11.h')
| -rw-r--r-- | contrib/tcpdump/ieee802_11.h | 161 |
1 files changed, 101 insertions, 60 deletions
diff --git a/contrib/tcpdump/ieee802_11.h b/contrib/tcpdump/ieee802_11.h index cecd0d7..fa5a555 100644 --- a/contrib/tcpdump/ieee802_11.h +++ b/contrib/tcpdump/ieee802_11.h @@ -1,4 +1,4 @@ -/* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.3 2001/06/14 09:50:01 guy Exp $ (LBL) */ +/* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.9 2003/07/22 17:36:57 guy Exp $ (LBL) */ /* * Copyright (c) 2001 * Fortress Technologies @@ -21,52 +21,87 @@ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. */ -#define IEEE802_11_FC_LEN 2 - -#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 +/* 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 +#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 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) +#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 { u_int16_t fc; @@ -77,19 +112,21 @@ struct mgmt_header_t { u_int16_t seq_ctrl; }; -#define MGMT_HEADER_LEN (2+2+6+6+6+2) +#define MGMT_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ + IEEE802_11_DA_LEN+IEEE802_11_SA_LEN+\ + IEEE802_11_BSSID_LEN+IEEE802_11_SEQ_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) +#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) struct ssid_t { u_int8_t element_id; u_int8_t length; u_char ssid[33]; /* 32 + 1 for null */ -} ; +}; struct rates_t { u_int8_t element_id; @@ -135,13 +172,13 @@ struct tim_t { u_int8_t bitmap[251]; }; -#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 +#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 */ @@ -153,7 +190,7 @@ struct tim_t { /* reserved 15 */ /* reserved 16 */ -#define E_CHALLENGE 16 +#define E_CHALLENGE 16 /* reserved 17 */ /* reserved 18 */ /* reserved 19 */ @@ -189,7 +226,8 @@ struct ctrl_rts_t { u_int8_t fcs[4]; }; -#define CTRL_RTS_LEN (2+2+6+6+4) +#define CTRL_RTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\ + IEEE802_11_RA_LEN+IEEE802_11_TA_LEN) struct ctrl_cts_t { u_int16_t fc; @@ -198,7 +236,7 @@ struct ctrl_cts_t { u_int8_t fcs[4]; }; -#define CTRL_CTS_LEN (2+2+6+4) +#define CTRL_CTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN) struct ctrl_ack_t { u_int16_t fc; @@ -207,7 +245,7 @@ struct ctrl_ack_t { u_int8_t fcs[4]; }; -#define CTRL_ACK_LEN (2+2+6+4) +#define CTRL_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN) struct ctrl_ps_poll_t { u_int16_t fc; @@ -217,7 +255,8 @@ struct ctrl_ps_poll_t { u_int8_t fcs[4]; }; -#define CTRL_PS_POLL_LEN (2+2+6+6+4) +#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 { u_int16_t fc; @@ -227,7 +266,8 @@ struct ctrl_end_t { u_int8_t fcs[4]; }; -#define CTRL_END_LEN (2+2+6+6+4) +#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 { u_int16_t fc; @@ -237,8 +277,9 @@ struct ctrl_end_ack_t { u_int8_t fcs[4]; }; -#define CTRL_END_ACK_LEN (2+2+6+6+4) +#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) +#define IV_IV(iv) ((iv) & 0xFFFFFF) +#define IV_PAD(iv) (((iv) >> 24) & 0x3F) +#define IV_KEYID(iv) (((iv) >> 30) & 0x03) |
