-/* @(#) $Header: /tcpdump/master/tcpdump/ieee802_11.h,v 1.6 2002-12-11 07:13:52 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
* 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;
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 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 */
/* reserved 15 */
/* reserved 16 */
-#define E_CHALLENGE 16
+#define E_CHALLENGE 16
/* reserved 17 */
/* reserved 18 */
/* reserved 19 */
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;
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;
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;
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;
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;
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)
projects / tcpdump / blobdiff