forked from osmocom/wireshark
8aa91b31b9
Provide that information so that the "802.11 radio information" protocol can indicate whether a packet was 802.11 legacy/11b/11a/11g/11n/11ac, and possibly whether it's 2.4 GHz or 5 GHz 11n. (Sometimes the center frequency might not be supplied, so the band information can be useful.) Also, provide some 11ac information, now that we can distinguish between 11n and 11ac. Don't calculate the data rate from the MCS index unless it's 11n; we don't yet have code to calculate it for 11ac. For radiotap, only provide guard interval information for 11n and 11ac, not for earlier standards. Handle the 11ac flag in the Peek remote protocol. For Peek tagged files, the "extension flags" are 11n/11ac flags, so we don't have to check for the "MCS used" bit in order to decide that the packet is 11n or 11ac or to decide whether to provide the "bandwidth" or "short GI" information. Change-Id: Ia8a1a9b11a35243ed84eb4e72c384cc77512b098 Reviewed-on: https://code.wireshark.org/review/9032 Reviewed-by: Guy Harris <guy@alum.mit.edu>
367 lines
14 KiB
C
367 lines
14 KiB
C
/*-
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* Copyright (c) 2003, 2004 David Young. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of David Young may not be used to endorse or promote
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* products derived from this software without specific prior
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* written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY DAVID YOUNG ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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* PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL DAVID
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* YOUNG BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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* OF SUCH DAMAGE.
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*/
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/*
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* Modifications to fit into the linux IEEE 802.11 stack,
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* Mike Kershaw (dragorn@kismetwireless.net)
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*/
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#ifndef IEEE80211RADIOTAP_H
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#define IEEE80211RADIOTAP_H
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#include <glib.h>
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/* Base version of the radiotap packet header data */
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#define PKTHDR_RADIOTAP_VERSION 0
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/* A generic radio capture format is desirable. There is one for
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* Linux, but it is neither rigidly defined (there were not even
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* units given for some fields) nor easily extensible.
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*
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* I suggest the following extensible radio capture format. It is
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* based on a bitmap indicating which fields are present.
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*
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* I am trying to describe precisely what the application programmer
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* should expect in the following, and for that reason I tell the
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* units and origin of each measurement (where it applies), or else I
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* use sufficiently weaselly language ("is a monotonically nondecreasing
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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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/* The radio capture header precedes the 802.11 header.
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* All data in the header is little endian on all platforms.
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*/
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struct ieee80211_radiotap_header {
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guint8 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 fields does not count.
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*/
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guint8 it_pad;
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guint16 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 data fields.
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*/
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guint32 it_present; /* A bitmap telling which
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* fields are present. Set bit 31
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* (0x80000000) to extend the
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* bitmap by another 32 bits.
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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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/* Name Data type Units
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* ---- --------- -----
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*
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* IEEE80211_RADIOTAP_TSFT __le64 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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*
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* IEEE80211_RADIOTAP_CHANNEL 2 x guint16 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 guint16 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 u8 500kb/s
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*
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* Tx/Rx data rate
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*
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* IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from
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* one milliwatt (dBm)
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*
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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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* IEEE80211_RADIOTAP_DBM_ANTNOISE s8 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 u8 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 u8 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_LOCK_QUALITY guint16 unitless
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*
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* Quality of Barker code lock. Unitless. Monotonically
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* nondecreasing with "better" lock strength. Called "Signal
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* Quality" in datasheets. (Is there a standard way to measure
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* this?)
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*
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* IEEE80211_RADIOTAP_TX_ATTENUATION guint16 unitless
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*
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* Transmit power expressed as unitless distance from max
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* power set at factory calibration. 0 is max power.
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* Monotonically nondecreasing with lower power levels.
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*
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* IEEE80211_RADIOTAP_DB_TX_ATTENUATION guint16 decibels (dB)
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*
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* Transmit power expressed as decibel distance from max power
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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 s8 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_FLAGS u8 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_ANTENNA u8 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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* IEEE80211_RADIOTAP_RX_FLAGS guint16 bitmap
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*
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* Properties of received frames. See flags defined below.
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*
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* IEEE80211_RADIOTAP_TX_FLAGS guint16 bitmap
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*
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* Properties of transmitted frames. See flags defined below.
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*
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* IEEE80211_RADIOTAP_RTS_RETRIES u8 data
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*
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* Number of rts retries a transmitted frame used.
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*
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* IEEE80211_RADIOTAP_DATA_RETRIES u8 data
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*
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* Number of unicast retries a transmitted frame used.
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*
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* IEEE80211_RADIOTAP_MCS u8, u8, u8 unitless
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*
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* Contains a bitmap of known fields/flags, the flags, and
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* the MCS index.
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*
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* IEEE80211_RADIOTAP_AMPDU_STATUS u32, u16, u8, u8 unitlesss
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*
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* Contains the AMPDU information for the subframe.
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*/
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enum ieee80211_radiotap_type {
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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_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_DB_ANTSIGNAL = 12,
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IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
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IEEE80211_RADIOTAP_RX_FLAGS = 14,
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IEEE80211_RADIOTAP_TX_FLAGS = 15,
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IEEE80211_RADIOTAP_RTS_RETRIES = 16,
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IEEE80211_RADIOTAP_DATA_RETRIES = 17,
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IEEE80211_RADIOTAP_XCHANNEL = 18, /* Unofficial, used by FreeBSD */
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IEEE80211_RADIOTAP_MCS = 19,
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IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
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IEEE80211_RADIOTAP_VHT = 21,
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/* valid in every it_present bitmap, even vendor namespaces */
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IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29,
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IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30,
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IEEE80211_RADIOTAP_EXT = 31
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};
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/* not (yet) defined Radiotap present flag */
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/* Bit 22 to 28 are not defined (in binary : 0001 1111 1100 0000 0000 0000 0000 0000 */
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#define IEEE80211_RADIOTAP_NOTDEFINED 0x1FC00000
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/* Channel flags. */
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/* 0x00000001 through 0x00000008 undefined (reserved?) */
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#define IEEE80211_CHAN_TURBO 0x00000010 /* Turbo channel */
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#define IEEE80211_CHAN_CCK 0x00000020 /* CCK channel */
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#define IEEE80211_CHAN_OFDM 0x00000040 /* OFDM channel */
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#define IEEE80211_CHAN_2GHZ 0x00000080 /* 2 GHz spectrum channel. */
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#define IEEE80211_CHAN_5GHZ 0x00000100 /* 5 GHz spectrum channel */
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#define IEEE80211_CHAN_PASSIVE 0x00000200 /* Only passive scan allowed */
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#define IEEE80211_CHAN_DYN 0x00000400 /* Dynamic CCK-OFDM channel */
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#define IEEE80211_CHAN_GFSK 0x00000800 /* GFSK channel (FHSS PHY) */
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/* Additional XChannel flags. */
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#define IEEE80211_CHAN_GSM 0x00001000 /* 900 MHz spectrum channel */
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#define IEEE80211_CHAN_STURBO 0x00002000 /* 11a static turbo channel only */
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#define IEEE80211_CHAN_HALF 0x00004000 /* Half rate channel */
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#define IEEE80211_CHAN_QUARTER 0x00008000 /* Quarter rate channel */
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#define IEEE80211_CHAN_HT20 0x00010000 /* HT 20 channel */
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#define IEEE80211_CHAN_HT40U 0x00020000 /* HT 40 channel w/ ext above */
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#define IEEE80211_CHAN_HT40D 0x00040000 /* HT 40 channel w/ ext below */
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#define IEEE80211_CHAN_HT40 (IEEE80211_CHAN_HT40U | IEEE80211_CHAN_HT40D)
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#define IEEE80211_CHAN_HT (IEEE80211_CHAN_HT20 | IEEE80211_CHAN_HT40)
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#define IEEE80211_CHAN_ALL \
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(IEEE80211_CHAN_2GHZ | IEEE80211_CHAN_5GHZ | IEEE80211_CHAN_GFSK | \
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IEEE80211_CHAN_CCK | IEEE80211_CHAN_OFDM | IEEE80211_CHAN_DYN | \
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IEEE80211_CHAN_HALF | IEEE80211_CHAN_QUARTER | \
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IEEE80211_CHAN_HT)
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#define IEEE80211_CHAN_ALLTURBO \
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(IEEE80211_CHAN_ALL | IEEE80211_CHAN_TURBO | IEEE80211_CHAN_STURBO)
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/* For IEEE80211_RADIOTAP_FLAGS */
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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 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 0x04 /* sent/received
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* with WEP encryption
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*/
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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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#define IEEE80211_RADIOTAP_F_FCS 0x10 /* frame includes FCS */
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#define IEEE80211_RADIOTAP_F_DATAPAD 0x20 /* frame has padding between
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* 802.11 header and payload
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* (to 32-bit boundary)
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*/
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#define IEEE80211_RADIOTAP_F_BADFCS 0x40 /* frame failed FCS check */
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/* For IEEE80211_RADIOTAP_RX_FLAGS */
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#define IEEE80211_RADIOTAP_F_RX_BADPLCP 0x0002 /* bad PLCP */
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/* For IEEE80211_RADIOTAP_TX_FLAGS */
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#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive
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* retries */
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#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */
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#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
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/* For IEEE80211_RADIOTAP_MCS */
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#define IEEE80211_RADIOTAP_MCS_HAVE_BW 0x01
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#define IEEE80211_RADIOTAP_MCS_HAVE_MCS 0x02
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#define IEEE80211_RADIOTAP_MCS_HAVE_GI 0x04
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#define IEEE80211_RADIOTAP_MCS_HAVE_FMT 0x08
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#define IEEE80211_RADIOTAP_MCS_HAVE_FEC 0x10
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#define IEEE80211_RADIOTAP_MCS_HAVE_STBC 0x20
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#define IEEE80211_RADIOTAP_MCS_HAVE_NESS 0x40
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#define IEEE80211_RADIOTAP_MCS_NESS_BIT1 0x80
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#define IEEE80211_RADIOTAP_MCS_BW_MASK 0x03
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#define IEEE80211_RADIOTAP_MCS_BW_20 0
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#define IEEE80211_RADIOTAP_MCS_BW_40 1
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#define IEEE80211_RADIOTAP_MCS_BW_20L 2
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#define IEEE80211_RADIOTAP_MCS_BW_20U 3
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#define IEEE80211_RADIOTAP_MCS_SGI 0x04
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#define IEEE80211_RADIOTAP_MCS_FMT_GF 0x08
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#define IEEE80211_RADIOTAP_MCS_FEC_LDPC 0x10
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#define IEEE80211_RADIOTAP_MCS_STBC_MASK 0x60
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#define IEEE80211_RADIOTAP_MCS_STBC_SHIFT 5
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#define IEEE80211_RADIOTAP_MCS_STBC_1 1
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#define IEEE80211_RADIOTAP_MCS_STBC_2 2
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#define IEEE80211_RADIOTAP_MCS_STBC_3 3
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#define IEEE80211_RADIOTAP_MCS_NESS_BIT0 0x80
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/* For IEEE80211_RADIOTAP_AMPDU_STATUS */
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#define IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN 0x0001
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#define IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN 0x0002
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#define IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN 0x0004
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#define IEEE80211_RADIOTAP_AMPDU_IS_LAST 0x0008
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#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR 0x0010
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#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN 0x0020
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/* For IEEE80211_RADIOTAP_VHT */
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#define IEEE80211_RADIOTAP_VHT_HAVE_STBC 0x0001
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#define IEEE80211_RADIOTAP_VHT_HAVE_TXOP_PS 0x0002
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#define IEEE80211_RADIOTAP_VHT_HAVE_GI 0x0004
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#define IEEE80211_RADIOTAP_VHT_HAVE_SGI_NSYM_DA 0x0008
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#define IEEE80211_RADIOTAP_VHT_HAVE_LDPC_EXTRA 0x0010
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#define IEEE80211_RADIOTAP_VHT_HAVE_BF 0x0020
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#define IEEE80211_RADIOTAP_VHT_HAVE_BW 0x0040
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#define IEEE80211_RADIOTAP_VHT_HAVE_GID 0x0080
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#define IEEE80211_RADIOTAP_VHT_HAVE_PAID 0x0100
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#define IEEE80211_RADIOTAP_VHT_STBC 0x01
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#define IEEE80211_RADIOTAP_VHT_TXOP_PS 0x02
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#define IEEE80211_RADIOTAP_VHT_SGI 0x04
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#define IEEE80211_RADIOTAP_VHT_SGI_NSYM_DA 0x08
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#define IEEE80211_RADIOTAP_VHT_LDPC_EXTRA 0x10
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#define IEEE80211_RADIOTAP_VHT_BF 0x20
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#define IEEE80211_RADIOTAP_VHT_NSS 0x0f
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#define IEEE80211_RADIOTAP_VHT_MCS 0xf0
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#define IEEE80211_RADIOTAP_VHT_CODING_LDPC 0x01
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#define IEEE80211_RADIOTAP_VHT_BW_MASK 0x1f
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#define IEEE80211_RADIOTAP_VHT_BW_20 IEEE80211_RADIOTAP_MCS_BW_20
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#define IEEE80211_RADIOTAP_VHT_BW_40 IEEE80211_RADIOTAP_MCS_BW_40
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#define IEEE80211_RADIOTAP_VHT_BW_20L IEEE80211_RADIOTAP_MCS_BW_20L
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#define IEEE80211_RADIOTAP_VHT_BW_20U IEEE80211_RADIOTAP_MCS_BW_20U
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#define IEEE80211_RADIOTAP_VHT_BW_80 4
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#define IEEE80211_RADIOTAP_VHT_BW_40L 5
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#define IEEE80211_RADIOTAP_VHT_BW_40U 6
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#define IEEE80211_RADIOTAP_VHT_BW_20LL 7
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#define IEEE80211_RADIOTAP_VHT_BW_20LU 8
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#define IEEE80211_RADIOTAP_VHT_BW_20UL 9
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#define IEEE80211_RADIOTAP_VHT_BW_20UU 10
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#define IEEE80211_RADIOTAP_VHT_BW_160 11
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#define IEEE80211_RADIOTAP_VHT_BW_80L 12
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#define IEEE80211_RADIOTAP_VHT_BW_80U 13
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#define IEEE80211_RADIOTAP_VHT_BW_40LL 14
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#define IEEE80211_RADIOTAP_VHT_BW_40LU 15
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#define IEEE80211_RADIOTAP_VHT_BW_40UL 16
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#define IEEE80211_RADIOTAP_VHT_BW_40UU 17
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#define IEEE80211_RADIOTAP_VHT_BW_20LLL 18
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#define IEEE80211_RADIOTAP_VHT_BW_20LLU 19
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#define IEEE80211_RADIOTAP_VHT_BW_20LUL 20
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#define IEEE80211_RADIOTAP_VHT_BW_20LUU 21
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#define IEEE80211_RADIOTAP_VHT_BW_20ULL 22
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#define IEEE80211_RADIOTAP_VHT_BW_20ULU 23
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#define IEEE80211_RADIOTAP_VHT_BW_20UUL 24
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#define IEEE80211_RADIOTAP_VHT_BW_20UUU 25
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#endif /* IEEE80211_RADIOTAP_H */
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