Sync with netbsd:
o #ifdef _KERNEL the fallback definition for DLT_IEEE802_11_RADIO o fix many comments o rename antenna stuff and fix units/reference signal o change IEEE80211_RADIOTAP_DBM_TX_POWER from unsigned 16-bit value to a signed 8-bit value o change IEEE80211_RADIOTAP_FLAGS from 16 bits to 8 bits to simplify padding requirements o drop IEEE80211_RADIOTAP_TIME o change IEEE80211_RADIOTAP_ANTENNA from 16 bits to 8 bits o drop IEEE80211_RADIOTAP_PAD o add channel flag definitions for outside the kernel so radiotap doesn't depend on stuff in ieee80211*.h Obtained from: NetBSD
This commit is contained in:
Sam Leffler
parent
8eaddab161
commit
c6b688c403
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@ -1,5 +1,5 @@
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/* $FreeBSD$ */
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/* $NetBSD: $ */
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/* $NetBSD: ieee80211_radiotap.h,v 1.3 2003/11/16 09:02:42 dyoung Exp $ */
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/*-
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* Copyright (c) 2003, 2004 David Young. All rights reserved.
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@ -46,22 +46,24 @@
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* function of...") that I cannot set false expectations for lawyerly
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* readers.
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*/
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#ifdef _KERNEL
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#ifndef DLT_IEEE802_11_RADIO
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#define DLT_IEEE802_11_RADIO 127 /* 802.11 plus WLAN header */
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#endif
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#endif /* _KERNEL */
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/* The radio capture header precedes the 802.11 header. */
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struct ieee80211_radiotap_header {
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u_int8_t it_version; /* Version 0. Only increases
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* for drastic changes,
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* introduction of compatible
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* new LTVs does not count.
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* new fields does not count.
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*/
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u_int8_t it_pad;
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u_int16_t it_len; /* length of the whole
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* header in bytes, including
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* it_version, it_pad,
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* it_len, and LTVs.
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* it_len, and data fields.
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*/
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u_int32_t it_present; /* A bitmap telling which
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* fields are present. Set bit 31
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@ -70,33 +72,51 @@ struct ieee80211_radiotap_header {
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* Additional extensions are made
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* by setting bit 31.
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*/
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};
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} __attribute__((__packed__));
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/* Name Data type Units
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* ---- --------- -----
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*
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* IEEE80211_RADIOTAP_CHANNEL u_int8_t MHz
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* IEEE80211_RADIOTAP_TSFT u_int64_t microseconds
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*
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* Tx/Rx channel number (for DSSS/OFDM/PBCC PHY)
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* Value in microseconds of the MAC's 64-bit 802.11 Time
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* Synchronization Function timer when the first bit of the
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* MPDU arrived at the MAC. For received frames, only.
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*
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* IEEE80211_RADIOTAP_CHANNEL 2 x u_int16_t MHz, bitmap
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*
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* Tx/Rx frequency in MHz, followed by flags (see below).
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*
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* IEEE80211_RADIOTAP_FHSS u_int16_t see below
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*
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* For frequency-hopping radios, the hop set (first byte)
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* and pattern (second byte).
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*
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* IEEE80211_RADIOTAP_RATE u_int8_t .5Mb/s
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* IEEE80211_RADIOTAP_RATE u_int8_t 500kb/s
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*
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* IEEE Tx/Rx data rate cookie (including basic rate flag)
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* Tx/Rx data rate
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*
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* IEEE80211_RADIOTAP_DB_ANTSIGNAL int16_t decibel (dB)
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*
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* RF signal power at the antenna, measured from a fixed,
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* arbitrary reference point.
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* IEEE80211_RADIOTAP_DBM_ANTSIGNAL int8_t decibels from
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* one milliwatt (dBm)
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*
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* IEEE80211_RADIOTAP_DB_ANTNOISE int16_t decibel (dB)
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* RF signal power at the antenna, decibel difference from
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* one milliwatt.
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*
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* RF noise power at the antenna in decibels from an arbitrary,
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* fixed reference point.
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* IEEE80211_RADIOTAP_DBM_ANTNOISE int8_t decibels from
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* one milliwatt (dBm)
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*
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* RF noise power at the antenna, decibel difference from one
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* milliwatt.
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*
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* IEEE80211_RADIOTAP_DB_ANTSIGNAL u_int8_t decibel (dB)
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*
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* RF signal power at the antenna, decibel difference from an
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* arbitrary, fixed reference.
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*
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* IEEE80211_RADIOTAP_DB_ANTNOISE u_int8_t decibel (dB)
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*
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* RF noise power at the antenna, decibel difference from an
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* arbitrary, fixed reference point.
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*
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* IEEE80211_RADIOTAP_BARKER_CODE_LOCK u_int16_t unitless
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*
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@ -117,68 +137,65 @@ struct ieee80211_radiotap_header {
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* set at factory calibration. 0 is max power. Monotonically
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* nondecreasing with lower power levels.
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*
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* IEEE80211_RADIOTAP_DBM_TX_POWER u_int16_t decibels from
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* milliwatt (dBm)
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* IEEE80211_RADIOTAP_DBM_TX_POWER int8_t decibels from
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* one milliwatt (dBm)
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*
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* Transmit power expressed as dBm (decibels from a 1 milliwatt
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* reference). This is the absolute power level measured at
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* the antenna port.
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*
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* IEEE80211_RADIOTAP_TSFT u_int64_t microseconds
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*
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* Value in microseconds of the MAC's 64-bit 802.11 Time
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* Synchronization Function timer when the first bit of the
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* MPDU arrived at the MAC. For received frames, only.
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* Little-endian byte order.
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*
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* IEEE80211_RADIOTAP_FLAGS u_int16_t bitmap
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* IEEE80211_RADIOTAP_FLAGS u_int8_t bitmap
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*
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* Properties of transmitted and received frames. See flags
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* defined below.
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*
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* IEEE80211_RADIOTAP_TIME u_int32_t microseconds
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*
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* For radios that provide it: packet arrival time in
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* microseconds. Prism hardware will provide this, but it is
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* not known whether it marks the first or the last bit of
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* the frame. Nor is it known where that bit has arrived
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* (antenna, modem, MAC?) when the time is measured.
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*
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* IEEE80211_RADIOTAP_ANTENNA u_int16_t antenna index
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* IEEE80211_RADIOTAP_ANTENNA u_int8_t antenna index
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*
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* Unitless indication of the Rx/Tx antenna for this packet.
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* The first antenna is antenna 0.
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*/
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enum ieee80211_radiotap_type {
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IEEE80211_RADIOTAP_PAD = 0,
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IEEE80211_RADIOTAP_TSFT = 0,
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IEEE80211_RADIOTAP_FLAGS = 1,
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IEEE80211_RADIOTAP_RATE = 2,
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IEEE80211_RADIOTAP_CHANNEL = 3,
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IEEE80211_RADIOTAP_FHSS = 4,
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IEEE80211_RADIOTAP_DB_ANTSIGNAL = 5,
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IEEE80211_RADIOTAP_DB_ANTNOISE = 6,
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IEEE80211_RADIOTAP_DBM_ANTSIGNAL = 5,
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IEEE80211_RADIOTAP_DBM_ANTNOISE = 6,
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IEEE80211_RADIOTAP_LOCK_QUALITY = 7,
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IEEE80211_RADIOTAP_TX_ATTENUATION = 8,
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IEEE80211_RADIOTAP_DB_TX_ATTENUATION = 9,
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IEEE80211_RADIOTAP_DBM_TX_POWER = 10,
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IEEE80211_RADIOTAP_ANTENNA = 11,
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IEEE80211_RADIOTAP_TSFT = 12,
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IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
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IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
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IEEE80211_RADIOTAP_EXT = 31,
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IEEE80211_RADIOTAP_TIME = 32
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};
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#ifndef _KERNEL
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/* Channel flags. */
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#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
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#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
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#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
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#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
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#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
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#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
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#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
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#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
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#endif /* !_KERNEL */
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/* For IEEE80211_RADIOTAP_FLAGS */
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#define IEEE80211_RADIOTAP_F_CFP 0x0001 /* sent/received
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#define IEEE80211_RADIOTAP_F_CFP 0x01 /* sent/received
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* during CFP
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*/
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#define IEEE80211_RADIOTAP_F_SHORTPRE 0x0002 /* sent/received
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#define IEEE80211_RADIOTAP_F_SHORTPRE 0x02 /* sent/received
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* with short
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* preamble
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*/
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#define IEEE80211_RADIOTAP_F_WEP 0x0004 /* sent/received
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#define IEEE80211_RADIOTAP_F_WEP 0x04 /* sent/received
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* with WEP encryption
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*/
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#define IEEE80211_RADIOTAP_F_FRAG 0x0008 /* sent/received
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#define IEEE80211_RADIOTAP_F_FRAG 0x08 /* sent/received
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* with fragmentation
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*/
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