214 lines
6.6 KiB
C
214 lines
6.6 KiB
C
/*
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* Copyright (c) 2017 Intel Deutschland GmbH
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef __RADIOTAP_H
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#define __RADIOTAP_H
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#include <linux/kernel.h>
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#include <asm/unaligned.h>
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/**
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* struct ieee82011_radiotap_header - base radiotap header
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*/
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struct ieee80211_radiotap_header {
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/**
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* @it_version: radiotap version, always 0
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*/
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uint8_t it_version;
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/**
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* @it_pad: padding (or alignment)
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*/
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uint8_t it_pad;
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/**
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* @it_len: overall radiotap header length
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*/
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__le16 it_len;
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/**
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* @it_present: (first) present word
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*/
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__le32 it_present;
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} __packed;
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/* version is always 0 */
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#define PKTHDR_RADIOTAP_VERSION 0
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/* see the radiotap website for the descriptions */
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enum ieee80211_radiotap_presence {
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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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/* 18 is XChannel, but it's not defined yet */
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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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IEEE80211_RADIOTAP_TIMESTAMP = 22,
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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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/* for IEEE80211_RADIOTAP_FLAGS */
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enum ieee80211_radiotap_flags {
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IEEE80211_RADIOTAP_F_CFP = 0x01,
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IEEE80211_RADIOTAP_F_SHORTPRE = 0x02,
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IEEE80211_RADIOTAP_F_WEP = 0x04,
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IEEE80211_RADIOTAP_F_FRAG = 0x08,
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IEEE80211_RADIOTAP_F_FCS = 0x10,
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IEEE80211_RADIOTAP_F_DATAPAD = 0x20,
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IEEE80211_RADIOTAP_F_BADFCS = 0x40,
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};
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/* for IEEE80211_RADIOTAP_CHANNEL */
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enum ieee80211_radiotap_channel_flags {
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IEEE80211_CHAN_CCK = 0x0020,
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IEEE80211_CHAN_OFDM = 0x0040,
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IEEE80211_CHAN_2GHZ = 0x0080,
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IEEE80211_CHAN_5GHZ = 0x0100,
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IEEE80211_CHAN_DYN = 0x0400,
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IEEE80211_CHAN_HALF = 0x4000,
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IEEE80211_CHAN_QUARTER = 0x8000,
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};
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/* for IEEE80211_RADIOTAP_RX_FLAGS */
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enum ieee80211_radiotap_rx_flags {
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IEEE80211_RADIOTAP_F_RX_BADPLCP = 0x0002,
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};
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/* for IEEE80211_RADIOTAP_TX_FLAGS */
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enum ieee80211_radiotap_tx_flags {
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IEEE80211_RADIOTAP_F_TX_FAIL = 0x0001,
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IEEE80211_RADIOTAP_F_TX_CTS = 0x0002,
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IEEE80211_RADIOTAP_F_TX_RTS = 0x0004,
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IEEE80211_RADIOTAP_F_TX_NOACK = 0x0008,
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};
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/* for IEEE80211_RADIOTAP_MCS "have" flags */
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enum ieee80211_radiotap_mcs_have {
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IEEE80211_RADIOTAP_MCS_HAVE_BW = 0x01,
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IEEE80211_RADIOTAP_MCS_HAVE_MCS = 0x02,
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IEEE80211_RADIOTAP_MCS_HAVE_GI = 0x04,
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IEEE80211_RADIOTAP_MCS_HAVE_FMT = 0x08,
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IEEE80211_RADIOTAP_MCS_HAVE_FEC = 0x10,
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IEEE80211_RADIOTAP_MCS_HAVE_STBC = 0x20,
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};
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enum ieee80211_radiotap_mcs_flags {
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IEEE80211_RADIOTAP_MCS_BW_MASK = 0x03,
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IEEE80211_RADIOTAP_MCS_BW_20 = 0,
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IEEE80211_RADIOTAP_MCS_BW_40 = 1,
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IEEE80211_RADIOTAP_MCS_BW_20L = 2,
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IEEE80211_RADIOTAP_MCS_BW_20U = 3,
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IEEE80211_RADIOTAP_MCS_SGI = 0x04,
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IEEE80211_RADIOTAP_MCS_FMT_GF = 0x08,
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IEEE80211_RADIOTAP_MCS_FEC_LDPC = 0x10,
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IEEE80211_RADIOTAP_MCS_STBC_MASK = 0x60,
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IEEE80211_RADIOTAP_MCS_STBC_1 = 1,
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IEEE80211_RADIOTAP_MCS_STBC_2 = 2,
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IEEE80211_RADIOTAP_MCS_STBC_3 = 3,
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IEEE80211_RADIOTAP_MCS_STBC_SHIFT = 5,
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};
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/* for IEEE80211_RADIOTAP_AMPDU_STATUS */
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enum ieee80211_radiotap_ampdu_flags {
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IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN = 0x0001,
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IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN = 0x0002,
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IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN = 0x0004,
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IEEE80211_RADIOTAP_AMPDU_IS_LAST = 0x0008,
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IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR = 0x0010,
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IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN = 0x0020,
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};
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/* for IEEE80211_RADIOTAP_VHT */
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enum ieee80211_radiotap_vht_known {
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IEEE80211_RADIOTAP_VHT_KNOWN_STBC = 0x0001,
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IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA = 0x0002,
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IEEE80211_RADIOTAP_VHT_KNOWN_GI = 0x0004,
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IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS = 0x0008,
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IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM = 0x0010,
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IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED = 0x0020,
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IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH = 0x0040,
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IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID = 0x0080,
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IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID = 0x0100,
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};
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enum ieee80211_radiotap_vht_flags {
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IEEE80211_RADIOTAP_VHT_FLAG_STBC = 0x01,
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IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA = 0x02,
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IEEE80211_RADIOTAP_VHT_FLAG_SGI = 0x04,
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IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 = 0x08,
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IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM = 0x10,
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IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED = 0x20,
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};
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enum ieee80211_radiotap_vht_coding {
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IEEE80211_RADIOTAP_CODING_LDPC_USER0 = 0x01,
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IEEE80211_RADIOTAP_CODING_LDPC_USER1 = 0x02,
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IEEE80211_RADIOTAP_CODING_LDPC_USER2 = 0x04,
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IEEE80211_RADIOTAP_CODING_LDPC_USER3 = 0x08,
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};
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/* for IEEE80211_RADIOTAP_TIMESTAMP */
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enum ieee80211_radiotap_timestamp_unit_spos {
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IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MASK = 0x000F,
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IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MS = 0x0000,
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IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US = 0x0001,
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IEEE80211_RADIOTAP_TIMESTAMP_UNIT_NS = 0x0003,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_MASK = 0x00F0,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_BEGIN_MDPU = 0x0000,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ = 0x0010,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_PPDU = 0x0020,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_MPDU = 0x0030,
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IEEE80211_RADIOTAP_TIMESTAMP_SPOS_UNKNOWN = 0x00F0,
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};
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enum ieee80211_radiotap_timestamp_flags {
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IEEE80211_RADIOTAP_TIMESTAMP_FLAG_64BIT = 0x00,
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IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT = 0x01,
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IEEE80211_RADIOTAP_TIMESTAMP_FLAG_ACCURACY = 0x02,
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};
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/**
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* ieee80211_get_radiotap_len - get radiotap header length
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*/
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static inline u16 ieee80211_get_radiotap_len(const char *data)
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{
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struct ieee80211_radiotap_header *hdr = (void *)data;
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return get_unaligned_le16(&hdr->it_len);
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}
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#endif /* __RADIOTAP_H */
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