+
+/* 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_ADDR1_LEN 6
+#define IEEE802_11_SEQ_LEN 2
+#define IEEE802_11_CTL_LEN 2
+#define IEEE802_11_CARRIED_FC_LEN 2
+#define IEEE802_11_HT_CONTROL_LEN 4
+#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_ACTION 0xD
+/* RESERVED 0xE */
+/* RESERVED 0xF */
+
+static const struct tok st_str[] = {
+ { ST_ASSOC_REQUEST, "Assoc Request" },
+ { ST_ASSOC_RESPONSE, "Assoc Response" },
+ { ST_REASSOC_REQUEST, "ReAssoc Request" },
+ { ST_REASSOC_RESPONSE, "ReAssoc Response" },
+ { ST_PROBE_REQUEST, "Probe Request" },
+ { ST_PROBE_RESPONSE, "Probe Response" },
+ { ST_BEACON, "Beacon" },
+ { ST_ATIM, "ATIM" },
+ { ST_DISASSOC, "Disassociation" },
+ { ST_AUTH, "Authentication" },
+ { ST_DEAUTH, "DeAuthentication" },
+ { ST_ACTION, "Action" },
+ { 0, NULL }
+};
+
+#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
+
+static const struct tok ctrl_str[] = {
+ { CTRL_CONTROL_WRAPPER, "Control Wrapper" },
+ { CTRL_BAR, "BAR" },
+ { CTRL_BA, "BA" },
+ { CTRL_PS_POLL, "Power Save-Poll" },
+ { CTRL_RTS, "Request-To-Send" },
+ { CTRL_CTS, "Clear-To-Send" },
+ { CTRL_ACK, "Acknowledgment" },
+ { CTRL_CF_END, "CF-End" },
+ { CTRL_END_ACK, "CF-End+CF-Ack" },
+ { 0, NULL }
+};
+
+#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_PROTECTED(fc) ((fc) & 0x4000)
+#define FC_ORDER(fc) ((fc) & 0x8000)
+
+struct mgmt_header_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t da[IEEE802_11_DA_LEN];
+ uint8_t sa[IEEE802_11_SA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+ uint16_t seq_ctrl;
+};
+
+#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)
+
+struct ssid_t {
+ uint8_t element_id;
+ uint8_t length;
+ u_char ssid[33]; /* 32 + 1 for null */
+};
+
+struct rates_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t rate[16];
+};
+
+struct challenge_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t text[254]; /* 1-253 + 1 for null */
+};
+
+struct fh_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint16_t dwell_time;
+ uint8_t hop_set;
+ uint8_t hop_pattern;
+ uint8_t hop_index;
+};
+
+struct ds_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t channel;
+};
+
+struct cf_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t count;
+ uint8_t period;
+ uint16_t max_duration;
+ uint16_t dur_remaing;
+};
+
+struct tim_t {
+ uint8_t element_id;
+ uint8_t length;
+ uint8_t count;
+ uint8_t period;
+ uint8_t bitmap_control;
+ uint8_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
+/* 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 {
+ uint8_t timestamp[IEEE802_11_TSTAMP_LEN];
+ uint16_t beacon_interval;
+ uint16_t listen_interval;
+ uint16_t status_code;
+ uint16_t aid;
+ u_char ap[IEEE802_11_AP_LEN];
+ uint16_t reason_code;
+ uint16_t auth_alg;
+ uint16_t auth_trans_seq_num;
+ int challenge_present;
+ struct challenge_t challenge;
+ uint16_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;
+};
+
+struct ctrl_control_wrapper_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t addr1[IEEE802_11_ADDR1_LEN];
+ uint16_t carried_fc[IEEE802_11_CARRIED_FC_LEN];
+ uint16_t ht_control[IEEE802_11_HT_CONTROL_LEN];
+};
+
+#define CTRL_CONTROL_WRAPPER_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_ADDR1_LEN+\
+ IEEE802_11_CARRIED_FC_LEN+\
+ IEEE802_11_HT_CONTROL_LEN)
+
+struct ctrl_rts_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
+};
+
+#define CTRL_RTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_RA_LEN+IEEE802_11_TA_LEN)
+
+struct ctrl_cts_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+};
+
+#define CTRL_CTS_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_ack_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+};
+
+#define CTRL_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_ps_poll_hdr_t {
+ uint16_t fc;
+ uint16_t aid;
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
+};
+
+#define CTRL_PS_POLL_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_AID_LEN+\
+ IEEE802_11_BSSID_LEN+IEEE802_11_TA_LEN)
+
+struct ctrl_end_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+};
+
+#define CTRL_END_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
+
+struct ctrl_end_ack_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t bssid[IEEE802_11_BSSID_LEN];
+};
+
+#define CTRL_END_ACK_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+\
+ IEEE802_11_RA_LEN+IEEE802_11_BSSID_LEN)
+
+struct ctrl_ba_hdr_t {
+ uint16_t fc;
+ uint16_t duration;
+ uint8_t ra[IEEE802_11_RA_LEN];
+};
+
+#define CTRL_BA_HDRLEN (IEEE802_11_FC_LEN+IEEE802_11_DUR_LEN+IEEE802_11_RA_LEN)
+
+struct ctrl_bar_hdr_t {
+ uint16_t fc;
+ uint16_t dur;
+ uint8_t ra[IEEE802_11_RA_LEN];
+ uint8_t ta[IEEE802_11_TA_LEN];
+ uint16_t ctl;
+ uint16_t seq;
+};
+
+#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 {
+ uint8_t flags;
+ uint8_t ttl;
+ uint8_t seq[4];
+ uint8_t addr4[6];
+ uint8_t addr5[6];
+ uint8_t addr6[6];
+};
+
+#define IV_IV(iv) ((iv) & 0xFFFFFF)
+#define IV_PAD(iv) (((iv) >> 24) & 0x3F)
+#define IV_KEYID(iv) (((iv) >> 30) & 0x03)
+
+/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
+/* NetBSD: ieee802_11_radio.h,v 1.2 2006/02/26 03:04:03 dyoung Exp */
+
+/*-
+ * Copyright (c) 2003, 2004 David Young. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ * 3. The name of David Young may not be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
+ * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID
+ * YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+ * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
+ * OF SUCH DAMAGE.
+ */
+
+/* A generic radio capture format is desirable. It must be
+ * rigidly defined (e.g., units for fields should be given),
+ * and easily extensible.
+ *
+ * The following is an extensible radio capture format. It is
+ * based on a bitmap indicating which fields are present.
+ *
+ * I am trying to describe precisely what the application programmer
+ * should expect in the following, and for that reason I tell the
+ * units and origin of each measurement (where it applies), or else I
+ * use sufficiently weaselly language ("is a monotonically nondecreasing
+ * function of...") that I cannot set false expectations for lawyerly
+ * readers.
+ */
+
+/*
+ * The radio capture header precedes the 802.11 header.
+ *
+ * Note well: all radiotap fields are little-endian.
+ */
+struct ieee80211_radiotap_header {
+ uint8_t it_version; /* Version 0. Only increases
+ * for drastic changes,
+ * introduction of compatible
+ * new fields does not count.
+ */
+ uint8_t it_pad;
+ uint16_t it_len; /* length of the whole
+ * header in bytes, including
+ * it_version, it_pad,
+ * it_len, and data fields.
+ */
+ uint32_t it_present; /* A bitmap telling which
+ * fields are present. Set bit 31
+ * (0x80000000) to extend the
+ * bitmap by another 32 bits.
+ * Additional extensions are made
+ * by setting bit 31.
+ */
+};
+
+/* Name Data type Units
+ * ---- --------- -----
+ *
+ * IEEE80211_RADIOTAP_TSFT uint64_t microseconds
+ *
+ * Value in microseconds of the MAC's 64-bit 802.11 Time
+ * Synchronization Function timer when the first bit of the
+ * MPDU arrived at the MAC. For received frames, only.
+ *
+ * IEEE80211_RADIOTAP_CHANNEL 2 x uint16_t MHz, bitmap
+ *
+ * Tx/Rx frequency in MHz, followed by flags (see below).
+ * Note that IEEE80211_RADIOTAP_XCHANNEL must be used to
+ * represent an HT channel as there is not enough room in
+ * the flags word.
+ *
+ * IEEE80211_RADIOTAP_FHSS uint16_t see below
+ *
+ * For frequency-hopping radios, the hop set (first byte)
+ * and pattern (second byte).
+ *
+ * IEEE80211_RADIOTAP_RATE uint8_t 500kb/s or index
+ *
+ * Tx/Rx data rate. If bit 0x80 is set then it represents an
+ * an MCS index and not an IEEE rate.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTSIGNAL int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * RF signal power at the antenna, decibel difference from
+ * one milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DBM_ANTNOISE int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * RF noise power at the antenna, decibel difference from one
+ * milliwatt.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTSIGNAL uint8_t decibel (dB)
+ *
+ * RF signal power at the antenna, decibel difference from an
+ * arbitrary, fixed reference.
+ *
+ * IEEE80211_RADIOTAP_DB_ANTNOISE uint8_t decibel (dB)
+ *
+ * RF noise power at the antenna, decibel difference from an
+ * arbitrary, fixed reference point.
+ *
+ * IEEE80211_RADIOTAP_LOCK_QUALITY uint16_t unitless
+ *
+ * Quality of Barker code lock. Unitless. Monotonically
+ * nondecreasing with "better" lock strength. Called "Signal
+ * Quality" in datasheets. (Is there a standard way to measure
+ * this?)
+ *
+ * IEEE80211_RADIOTAP_TX_ATTENUATION uint16_t unitless
+ *
+ * Transmit power expressed as unitless distance from max
+ * power set at factory calibration. 0 is max power.
+ * Monotonically nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DB_TX_ATTENUATION uint16_t decibels (dB)
+ *
+ * Transmit power expressed as decibel distance from max power
+ * set at factory calibration. 0 is max power. Monotonically
+ * nondecreasing with lower power levels.
+ *
+ * IEEE80211_RADIOTAP_DBM_TX_POWER int8_t decibels from
+ * one milliwatt (dBm)
+ *
+ * Transmit power expressed as dBm (decibels from a 1 milliwatt
+ * reference). This is the absolute power level measured at
+ * the antenna port.
+ *
+ * IEEE80211_RADIOTAP_FLAGS uint8_t bitmap
+ *
+ * Properties of transmitted and received frames. See flags
+ * defined below.
+ *
+ * IEEE80211_RADIOTAP_ANTENNA uint8_t antenna index
+ *
+ * Unitless indication of the Rx/Tx antenna for this packet.
+ * The first antenna is antenna 0.
+ *
+ * IEEE80211_RADIOTAP_RX_FLAGS uint16_t bitmap
+ *
+ * Properties of received frames. See flags defined below.
+ *
+ * IEEE80211_RADIOTAP_XCHANNEL uint32_t bitmap
+ * uint16_t MHz
+ * uint8_t channel number
+ * uint8_t .5 dBm
+ *
+ * Extended channel specification: flags (see below) followed by
+ * frequency in MHz, the corresponding IEEE channel number, and
+ * finally the maximum regulatory transmit power cap in .5 dBm
+ * units. This property supersedes IEEE80211_RADIOTAP_CHANNEL
+ * and only one of the two should be present.
+ *
+ * IEEE80211_RADIOTAP_MCS uint8_t known
+ * uint8_t flags
+ * uint8_t mcs
+ *
+ * Bitset indicating which fields have known values, followed
+ * by bitset of flag values, followed by the MCS rate index as
+ * in IEEE 802.11n.
+ *
+ * IEEE80211_RADIOTAP_VENDOR_NAMESPACE
+ * uint8_t OUI[3]
+ * uint8_t subspace
+ * uint16_t length
+ *
+ * The Vendor Namespace Field contains three sub-fields. The first
+ * sub-field is 3 bytes long. It contains the vendor's IEEE 802
+ * Organizationally Unique Identifier (OUI). The fourth byte is a
+ * vendor-specific "namespace selector."
+ *
+ */
+enum ieee80211_radiotap_type {
+ IEEE80211_RADIOTAP_TSFT = 0,
+ IEEE80211_RADIOTAP_FLAGS = 1,
+ IEEE80211_RADIOTAP_RATE = 2,
+ IEEE80211_RADIOTAP_CHANNEL = 3,
+ IEEE80211_RADIOTAP_FHSS = 4,
+ IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
+ IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
+ IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
+ IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
+ IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
+ IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
+ IEEE80211_RADIOTAP_ANTENNA = 11,
+ IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
+ IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
+ IEEE80211_RADIOTAP_RX_FLAGS = 14,
+ /* NB: gap for netbsd definitions */
+ IEEE80211_RADIOTAP_XCHANNEL = 18,
+ IEEE80211_RADIOTAP_MCS = 19,
+ IEEE80211_RADIOTAP_NAMESPACE = 29,
+ IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
+ IEEE80211_RADIOTAP_EXT = 31
+};
+
+/* channel attributes */
+#define IEEE80211_CHAN_TURBO 0x00010 /* Turbo channel */
+#define IEEE80211_CHAN_CCK 0x00020 /* CCK channel */
+#define IEEE80211_CHAN_OFDM 0x00040 /* OFDM channel */
+#define IEEE80211_CHAN_2GHZ 0x00080 /* 2 GHz spectrum channel. */
+#define IEEE80211_CHAN_5GHZ 0x00100 /* 5 GHz spectrum channel */
+#define IEEE80211_CHAN_PASSIVE 0x00200 /* Only passive scan allowed */
+#define IEEE80211_CHAN_DYN 0x00400 /* Dynamic CCK-OFDM channel */
+#define IEEE80211_CHAN_GFSK 0x00800 /* GFSK channel (FHSS PHY) */
+#define IEEE80211_CHAN_GSM 0x01000 /* 900 MHz spectrum channel */
+#define IEEE80211_CHAN_STURBO 0x02000 /* 11a static turbo channel only */
+#define IEEE80211_CHAN_HALF 0x04000 /* Half rate channel */
+#define IEEE80211_CHAN_QUARTER 0x08000 /* Quarter rate channel */
+#define IEEE80211_CHAN_HT20 0x10000 /* HT 20 channel */
+#define IEEE80211_CHAN_HT40U 0x20000 /* HT 40 channel w/ ext above */
+#define IEEE80211_CHAN_HT40D 0x40000 /* HT 40 channel w/ ext below */
+
+/* Useful combinations of channel characteristics, borrowed from Ethereal */
+#define IEEE80211_CHAN_A \
+ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM)
+#define IEEE80211_CHAN_B \
+ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_CCK)
+#define IEEE80211_CHAN_G \
+ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN)
+#define IEEE80211_CHAN_TA \
+ (IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_TURBO)
+#define IEEE80211_CHAN_TG \
+ (IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_DYN | IEEE80211_CHAN_TURBO)
+
+
+/* For IEEE80211_RADIOTAP_FLAGS */
+#define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received
+ * during CFP
+ */
+#define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received
+ * with short
+ * preamble
+ */
+#define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received
+ * with WEP encryption
+ */
+#define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received
+ * with fragmentation
+ */
+#define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */
+#define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between
+ * 802.11 header and payload
+ * (to 32-bit boundary)
+ */
+#define IEEE80211_RADIOTAP_F_BADFCS 0x40 /* does not pass FCS check */
+
+/* For IEEE80211_RADIOTAP_RX_FLAGS */
+#define IEEE80211_RADIOTAP_F_RX_BADFCS 0x0001 /* frame failed crc check */
+#define IEEE80211_RADIOTAP_F_RX_PLCP_CRC 0x0002 /* frame failed PLCP CRC check */
+
+/* For IEEE80211_RADIOTAP_MCS known */
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_KNOWN 0x01
+#define IEEE80211_RADIOTAP_MCS_MCS_INDEX_KNOWN 0x02 /* MCS index field */
+#define IEEE80211_RADIOTAP_MCS_GUARD_INTERVAL_KNOWN 0x04
+#define IEEE80211_RADIOTAP_MCS_HT_FORMAT_KNOWN 0x08
+#define IEEE80211_RADIOTAP_MCS_FEC_TYPE_KNOWN 0x10
+#define IEEE80211_RADIOTAP_MCS_STBC_KNOWN 0x20
+
+/* For IEEE80211_RADIOTAP_MCS flags */
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_MASK 0x03
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20 0
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_40 1
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20L 2
+#define IEEE80211_RADIOTAP_MCS_BANDWIDTH_20U 3
+#define IEEE80211_RADIOTAP_MCS_SHORT_GI 0x04 /* short guard interval */
+#define IEEE80211_RADIOTAP_MCS_HT_GREENFIELD 0x08
+#define IEEE80211_RADIOTAP_MCS_FEC_LDPC 0x10
+#define IEEE80211_RADIOTAP_MCS_STBC_MASK 0x60
+#define IEEE80211_RADIOTAP_MCS_STBC_1 1
+#define IEEE80211_RADIOTAP_MCS_STBC_2 2
+#define IEEE80211_RADIOTAP_MCS_STBC_3 3
+#define IEEE80211_RADIOTAP_MCS_STBC_SHIFT 5
+
+static const char tstr[] = "[|802.11]";
+
+/* Radiotap state */
+/* This is used to save state when parsing/processing parameters */
+struct radiotap_state
+{
+ uint32_t present;
+
+ uint8_t rate;
+};
projects / tcpdump / blobdiff