-/* @(#) $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 1.12 2007-07-22 19:59:06 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_CTL_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 */
+#define ST_BEACON 0x8
+#define ST_ATIM 0x9
+#define ST_DISASSOC 0xA
+#define ST_AUTH 0xB
+#define ST_DEAUTH 0xC
+#define ST_ACTION 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_CONTROL_WRAPPER 0x7
+#define CTRL_BAR 0x8
+#define CTRL_BA 0x9
+#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
+
+#define DATA_QOS_DATA 0x8
+#define DATA_QOS_DATA_CF_ACK 0x9
+#define DATA_QOS_DATA_CF_POLL 0xA
+#define DATA_QOS_DATA_CF_ACK_POLL 0xB
+#define DATA_QOS_NODATA 0xC
+#define DATA_QOS_CF_POLL_NODATA 0xE
+#define DATA_QOS_CF_ACK_POLL_NODATA 0xF
+
+/*
+ * The subtype field of a data frame is, in effect, composed of 4 flag
+ * bits - CF-Ack, CF-Poll, Null (means the frame doesn't actually have
+ * any data), and QoS.
+ */
+#define DATA_FRAME_IS_CF_ACK(x) ((x) & 0x01)
+#define DATA_FRAME_IS_CF_POLL(x) ((x) & 0x02)
+#define DATA_FRAME_IS_NULL(x) ((x) & 0x04)
+#define DATA_FRAME_IS_QOS(x) ((x) & 0x08)
/*
* 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 length;
u_char ssid[33]; /* 32 + 1 for null */
-} ;
+};
struct rates_t {
u_int8_t element_id;
u_int8_t length;
- u_int8_t rate[8];
+ u_int8_t rate[16];
};
struct challenge_t {
u_int8_t length;
u_int8_t text[254]; /* 1-253 + 1 for null */
};
+
struct fh_t {
u_int8_t element_id;
u_int8_t length;
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 */
struct mgmt_body_t {
- u_int8_t timestamp[8];
+ u_int8_t timestamp[IEEE802_11_TSTAMP_LEN];
u_int16_t beacon_interval;
u_int16_t listen_interval;
u_int16_t status_code;
u_int16_t aid;
- u_char ap[6];
+ u_char ap[IEEE802_11_AP_LEN];
u_int16_t reason_code;
u_int16_t auth_alg;
u_int16_t auth_trans_seq_num;
+ int challenge_present;
struct challenge_t challenge;
u_int16_t capability_info;
+ int ssid_present;
struct ssid_t ssid;
+ int rates_present;
struct rates_t rates;
+ int ds_present;
struct ds_t ds;
+ int cf_present;
struct cf_t cf;
+ int fh_present;
struct fh_t fh;
+ int tim_present;
struct tim_t tim;
};
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)
+
+struct ctrl_ba_t {
+ u_int16_t fc;
+ u_int16_t duration;
+ u_int8_t ra[6];
+ u_int8_t fcs[4];
+};
+
+#define CTRL_BA_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_bar_t {
+ u_int16_t fc;
+ u_int16_t dur;
+ u_int8_t ra[6];
+ u_int8_t ta[6];
+ u_int16_t ctl;
+ u_int16_t seq;
+ u_int8_t fcs[4];
+};
+
+#define CTRL_BAR_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_RA_LEN+IEEE802_11_TA_LEN+\
+ IEEE802_11_CTL_LEN+IEEE802_11_SEQ_LEN)
+
+struct meshcntl_t {
+ u_int8_t flags;
+ u_int8_t ttl;
+ u_int8_t seq[4];
+ u_int8_t addr4[6];
+ u_int8_t addr5[6];
+ u_int8_t addr6[6];
+};
-#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)
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