From: Johannes Berg <johannes.berg@xxxxxxxxx>
The header file has grown a lot of #define's etc, but
they are nicer as enums, so rewrite the file from the
documentation as such.
Signed-off-by: Johannes Berg <johannes.berg@xxxxxxxxx>
---
include/net/ieee80211_radiotap.h | 444 +++++++++++++--------------------------
1 file changed, 144 insertions(+), 300 deletions(-)
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h
index d0e7e3f8e67a..f4ab5c6b5ed3 100644
--- a/include/net/ieee80211_radiotap.h
+++ b/include/net/ieee80211_radiotap.h
@@ -1,201 +1,39 @@
-/*
- * 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.
- */
-
-/*
- * Modifications to fit into the linux IEEE 802.11 stack,
- * Mike Kershaw (dragorn@xxxxxxxxxxxxxxxxxx)
- */
-
-#ifndef IEEE80211RADIOTAP_H
-#define IEEE80211RADIOTAP_H
+#ifndef __RADIOTAP_H
+#define __RADIOTAP_H
-#include <linux/if_ether.h>
#include <linux/kernel.h>
#include <asm/unaligned.h>
-/* Base version of the radiotap packet header data */
-#define PKTHDR_RADIOTAP_VERSION 0
-
-/* A generic radio capture format is desirable. There is one for
- * Linux, but it is neither rigidly defined (there were not even
- * units given for some fields) nor easily extensible.
- *
- * I suggest the following 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.
- * All data in the header is little endian on all platforms.
+/**
+ * struct ieee82011_radiotap_header - base radiotap header
*/
struct ieee80211_radiotap_header {
- u8 it_version; /* Version 0. Only increases
- * for drastic changes,
- * introduction of compatible
- * new fields does not count.
- */
- u8 it_pad;
- __le16 it_len; /* length of the whole
- * header in bytes, including
- * it_version, it_pad,
- * it_len, and data fields.
- */
- __le32 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.
- */
+ /**
+ * @it_version: radiotap version, always 0
+ */
+ uint8_t it_version;
+
+ /**
+ * @it_pad: padding (or alignment)
+ */
+ uint8_t it_pad;
+
+ /**
+ * @it_len: overall radiotap header length
+ */
+ __le16 it_len;
+
+ /**
+ * @it_present: (first) present word
+ */
+ __le32 it_present;
} __packed;
-/* Name Data type Units
- * ---- --------- -----
- *
- * IEEE80211_RADIOTAP_TSFT __le64 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 __le16 MHz, bitmap
- *
- * Tx/Rx frequency in MHz, followed by flags (see below).
- *
- * IEEE80211_RADIOTAP_FHSS __le16 see below
- *
- * For frequency-hopping radios, the hop set (first byte)
- * and pattern (second byte).
- *
- * IEEE80211_RADIOTAP_RATE u8 500kb/s
- *
- * Tx/Rx data rate
- *
- * IEEE80211_RADIOTAP_DBM_ANTSIGNAL s8 decibels from
- * one milliwatt (dBm)
- *
- * RF signal power at the antenna, decibel difference from
- * one milliwatt.
- *
- * IEEE80211_RADIOTAP_DBM_ANTNOISE s8 decibels from
- * one milliwatt (dBm)
- *
- * RF noise power at the antenna, decibel difference from one
- * milliwatt.
- *
- * IEEE80211_RADIOTAP_DB_ANTSIGNAL u8 decibel (dB)
- *
- * RF signal power at the antenna, decibel difference from an
- * arbitrary, fixed reference.
- *
- * IEEE80211_RADIOTAP_DB_ANTNOISE u8 decibel (dB)
- *
- * RF noise power at the antenna, decibel difference from an
- * arbitrary, fixed reference point.
- *
- * IEEE80211_RADIOTAP_LOCK_QUALITY __le16 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 __le16 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 __le16 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 s8 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 u8 bitmap
- *
- * Properties of transmitted and received frames. See flags
- * defined below.
- *
- * IEEE80211_RADIOTAP_ANTENNA u8 antenna index
- *
- * Unitless indication of the Rx/Tx antenna for this packet.
- * The first antenna is antenna 0.
- *
- * IEEE80211_RADIOTAP_RX_FLAGS __le16 bitmap
- *
- * Properties of received frames. See flags defined below.
- *
- * IEEE80211_RADIOTAP_TX_FLAGS __le16 bitmap
- *
- * Properties of transmitted frames. See flags defined below.
- *
- * IEEE80211_RADIOTAP_RTS_RETRIES u8 data
- *
- * Number of rts retries a transmitted frame used.
- *
- * IEEE80211_RADIOTAP_DATA_RETRIES u8 data
- *
- * Number of unicast retries a transmitted frame used.
- *
- * IEEE80211_RADIOTAP_MCS u8, u8, u8 unitless
- *
- * Contains a bitmap of known fields/flags, the flags, and
- * the MCS index.
- *
- * IEEE80211_RADIOTAP_AMPDU_STATUS u32, u16, u8, u8 unitless
- *
- * Contains the AMPDU information for the subframe.
- *
- * IEEE80211_RADIOTAP_VHT u16, u8, u8, u8[4], u8, u8, u16
- *
- * Contains VHT information about this frame.
- *
- * IEEE80211_RADIOTAP_TIMESTAMP u64, u16, u8, u8 variable
- *
- * Contains timestamp information for this frame.
- */
-enum ieee80211_radiotap_type {
+/* version is always 0 */
+#define PKTHDR_RADIOTAP_VERSION 0
+
+/* see the radiotap website for the descriptions */
+enum ieee80211_radiotap_presence {
IEEE80211_RADIOTAP_TSFT = 0,
IEEE80211_RADIOTAP_FLAGS = 1,
IEEE80211_RADIOTAP_RATE = 2,
@@ -214,7 +52,7 @@ enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_TX_FLAGS = 15,
IEEE80211_RADIOTAP_RTS_RETRIES = 16,
IEEE80211_RADIOTAP_DATA_RETRIES = 17,
-
+ /* 18 is XChannel, but it's not defined yet */
IEEE80211_RADIOTAP_MCS = 19,
IEEE80211_RADIOTAP_AMPDU_STATUS = 20,
IEEE80211_RADIOTAP_VHT = 21,
@@ -226,129 +64,135 @@ enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_EXT = 31
};
-/* Channel flags. */
-#define IEEE80211_CHAN_TURBO 0x0010 /* Turbo channel */
-#define IEEE80211_CHAN_CCK 0x0020 /* CCK channel */
-#define IEEE80211_CHAN_OFDM 0x0040 /* OFDM channel */
-#define IEEE80211_CHAN_2GHZ 0x0080 /* 2 GHz spectrum channel. */
-#define IEEE80211_CHAN_5GHZ 0x0100 /* 5 GHz spectrum channel */
-#define IEEE80211_CHAN_PASSIVE 0x0200 /* Only passive scan allowed */
-#define IEEE80211_CHAN_DYN 0x0400 /* Dynamic CCK-OFDM channel */
-#define IEEE80211_CHAN_GFSK 0x0800 /* GFSK channel (FHSS PHY) */
-#define IEEE80211_CHAN_GSM 0x1000 /* GSM (900 MHz) */
-#define IEEE80211_CHAN_STURBO 0x2000 /* Static Turbo */
-#define IEEE80211_CHAN_HALF 0x4000 /* Half channel (10 MHz wide) */
-#define IEEE80211_CHAN_QUARTER 0x8000 /* Quarter channel (5 MHz wide) */
-
-/* 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 /* bad FCS */
-
-/* For IEEE80211_RADIOTAP_RX_FLAGS */
-#define IEEE80211_RADIOTAP_F_RX_BADPLCP 0x0002 /* frame has bad PLCP */
+/* for IEEE80211_RADIOTAP_FLAGS */
+enum ieee80211_radiotap_flags {
+ IEEE80211_RADIOTAP_F_CFP = 0x01,
+ IEEE80211_RADIOTAP_F_SHORTPRE = 0x02,
+ IEEE80211_RADIOTAP_F_WEP = 0x04,
+ IEEE80211_RADIOTAP_F_FRAG = 0x08,
+ IEEE80211_RADIOTAP_F_FCS = 0x10,
+ IEEE80211_RADIOTAP_F_DATAPAD = 0x20,
+ IEEE80211_RADIOTAP_F_BADFCS = 0x40,
+};
-/* For IEEE80211_RADIOTAP_TX_FLAGS */
-#define IEEE80211_RADIOTAP_F_TX_FAIL 0x0001 /* failed due to excessive
- * retries */
-#define IEEE80211_RADIOTAP_F_TX_CTS 0x0002 /* used cts 'protection' */
-#define IEEE80211_RADIOTAP_F_TX_RTS 0x0004 /* used rts/cts handshake */
-#define IEEE80211_RADIOTAP_F_TX_NOACK 0x0008 /* don't expect an ack */
+/* for IEEE80211_RADIOTAP_CHANNEL */
+enum ieee80211_radiotap_channel_flags {
+ IEEE80211_CHAN_CCK = 0x0020,
+ IEEE80211_CHAN_OFDM = 0x0040,
+ IEEE80211_CHAN_2GHZ = 0x0080,
+ IEEE80211_CHAN_5GHZ = 0x0100,
+ IEEE80211_CHAN_DYN = 0x0400,
+ IEEE80211_CHAN_HALF = 0x4000,
+ IEEE80211_CHAN_QUARTER = 0x8000,
+};
+/* for IEEE80211_RADIOTAP_RX_FLAGS */
+enum ieee80211_radiotap_rx_flags {
+ IEEE80211_RADIOTAP_F_RX_BADPLCP = 0x0002,
+};
-/* For IEEE80211_RADIOTAP_MCS */
-#define IEEE80211_RADIOTAP_MCS_HAVE_BW 0x01
-#define IEEE80211_RADIOTAP_MCS_HAVE_MCS 0x02
-#define IEEE80211_RADIOTAP_MCS_HAVE_GI 0x04
-#define IEEE80211_RADIOTAP_MCS_HAVE_FMT 0x08
-#define IEEE80211_RADIOTAP_MCS_HAVE_FEC 0x10
-#define IEEE80211_RADIOTAP_MCS_HAVE_STBC 0x20
+/* for IEEE80211_RADIOTAP_TX_FLAGS */
+enum ieee80211_radiotap_tx_flags {
+ IEEE80211_RADIOTAP_F_TX_FAIL = 0x0001,
+ IEEE80211_RADIOTAP_F_TX_CTS = 0x0002,
+ IEEE80211_RADIOTAP_F_TX_RTS = 0x0004,
+ IEEE80211_RADIOTAP_F_TX_NOACK = 0x0008,
+};
-#define IEEE80211_RADIOTAP_MCS_BW_MASK 0x03
-#define IEEE80211_RADIOTAP_MCS_BW_20 0
-#define IEEE80211_RADIOTAP_MCS_BW_40 1
-#define IEEE80211_RADIOTAP_MCS_BW_20L 2
-#define IEEE80211_RADIOTAP_MCS_BW_20U 3
-#define IEEE80211_RADIOTAP_MCS_SGI 0x04
-#define IEEE80211_RADIOTAP_MCS_FMT_GF 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
+/* for IEEE80211_RADIOTAP_MCS "have" flags */
+enum ieee80211_radiotap_mcs_have {
+ IEEE80211_RADIOTAP_MCS_HAVE_BW = 0x01,
+ IEEE80211_RADIOTAP_MCS_HAVE_MCS = 0x02,
+ IEEE80211_RADIOTAP_MCS_HAVE_GI = 0x04,
+ IEEE80211_RADIOTAP_MCS_HAVE_FMT = 0x08,
+ IEEE80211_RADIOTAP_MCS_HAVE_FEC = 0x10,
+ IEEE80211_RADIOTAP_MCS_HAVE_STBC = 0x20,
+};
-#define IEEE80211_RADIOTAP_MCS_STBC_SHIFT 5
+enum ieee80211_radiotap_mcs_flags {
+ IEEE80211_RADIOTAP_MCS_BW_MASK = 0x03,
+ IEEE80211_RADIOTAP_MCS_BW_20 = 0,
+ IEEE80211_RADIOTAP_MCS_BW_40 = 1,
+ IEEE80211_RADIOTAP_MCS_BW_20L = 2,
+ IEEE80211_RADIOTAP_MCS_BW_20U = 3,
+
+ IEEE80211_RADIOTAP_MCS_SGI = 0x04,
+ IEEE80211_RADIOTAP_MCS_FMT_GF = 0x08,
+ IEEE80211_RADIOTAP_MCS_FEC_LDPC = 0x10,
+ IEEE80211_RADIOTAP_MCS_STBC_MASK = 0x60,
+ IEEE80211_RADIOTAP_MCS_STBC_1 = 1,
+ IEEE80211_RADIOTAP_MCS_STBC_2 = 2,
+ IEEE80211_RADIOTAP_MCS_STBC_3 = 3,
+ IEEE80211_RADIOTAP_MCS_STBC_SHIFT = 5,
+};
-/* For IEEE80211_RADIOTAP_AMPDU_STATUS */
-#define IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN 0x0001
-#define IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN 0x0002
-#define IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN 0x0004
-#define IEEE80211_RADIOTAP_AMPDU_IS_LAST 0x0008
-#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR 0x0010
-#define IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN 0x0020
+/* for IEEE80211_RADIOTAP_AMPDU_STATUS */
+enum ieee80211_radiotap_ampdu_flags {
+ IEEE80211_RADIOTAP_AMPDU_REPORT_ZEROLEN = 0x0001,
+ IEEE80211_RADIOTAP_AMPDU_IS_ZEROLEN = 0x0002,
+ IEEE80211_RADIOTAP_AMPDU_LAST_KNOWN = 0x0004,
+ IEEE80211_RADIOTAP_AMPDU_IS_LAST = 0x0008,
+ IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_ERR = 0x0010,
+ IEEE80211_RADIOTAP_AMPDU_DELIM_CRC_KNOWN = 0x0020,
+};
-/* For IEEE80211_RADIOTAP_VHT */
-#define IEEE80211_RADIOTAP_VHT_KNOWN_STBC 0x0001
-#define IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA 0x0002
-#define IEEE80211_RADIOTAP_VHT_KNOWN_GI 0x0004
-#define IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS 0x0008
-#define IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM 0x0010
-#define IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED 0x0020
-#define IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH 0x0040
-#define IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID 0x0080
-#define IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID 0x0100
+/* for IEEE80211_RADIOTAP_VHT */
+enum ieee80211_radiotap_vht_known {
+ IEEE80211_RADIOTAP_VHT_KNOWN_STBC = 0x0001,
+ IEEE80211_RADIOTAP_VHT_KNOWN_TXOP_PS_NA = 0x0002,
+ IEEE80211_RADIOTAP_VHT_KNOWN_GI = 0x0004,
+ IEEE80211_RADIOTAP_VHT_KNOWN_SGI_NSYM_DIS = 0x0008,
+ IEEE80211_RADIOTAP_VHT_KNOWN_LDPC_EXTRA_OFDM_SYM = 0x0010,
+ IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED = 0x0020,
+ IEEE80211_RADIOTAP_VHT_KNOWN_BANDWIDTH = 0x0040,
+ IEEE80211_RADIOTAP_VHT_KNOWN_GROUP_ID = 0x0080,
+ IEEE80211_RADIOTAP_VHT_KNOWN_PARTIAL_AID = 0x0100,
+};
-#define IEEE80211_RADIOTAP_VHT_FLAG_STBC 0x01
-#define IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA 0x02
-#define IEEE80211_RADIOTAP_VHT_FLAG_SGI 0x04
-#define IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 0x08
-#define IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM 0x10
-#define IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED 0x20
+enum ieee80211_radiotap_vht_flags {
+ IEEE80211_RADIOTAP_VHT_FLAG_STBC = 0x01,
+ IEEE80211_RADIOTAP_VHT_FLAG_TXOP_PS_NA = 0x02,
+ IEEE80211_RADIOTAP_VHT_FLAG_SGI = 0x04,
+ IEEE80211_RADIOTAP_VHT_FLAG_SGI_NSYM_M10_9 = 0x08,
+ IEEE80211_RADIOTAP_VHT_FLAG_LDPC_EXTRA_OFDM_SYM = 0x10,
+ IEEE80211_RADIOTAP_VHT_FLAG_BEAMFORMED = 0x20,
+};
-#define IEEE80211_RADIOTAP_CODING_LDPC_USER0 0x01
-#define IEEE80211_RADIOTAP_CODING_LDPC_USER1 0x02
-#define IEEE80211_RADIOTAP_CODING_LDPC_USER2 0x04
-#define IEEE80211_RADIOTAP_CODING_LDPC_USER3 0x08
+enum ieee80211_radiotap_vht_coding {
+ IEEE80211_RADIOTAP_CODING_LDPC_USER0 = 0x01,
+ IEEE80211_RADIOTAP_CODING_LDPC_USER1 = 0x02,
+ IEEE80211_RADIOTAP_CODING_LDPC_USER2 = 0x04,
+ IEEE80211_RADIOTAP_CODING_LDPC_USER3 = 0x08,
+};
-/* For IEEE80211_RADIOTAP_TIMESTAMP */
-#define IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MASK 0x000F
-#define IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MS 0x0000
-#define IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US 0x0001
-#define IEEE80211_RADIOTAP_TIMESTAMP_UNIT_NS 0x0003
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_MASK 0x00F0
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_BEGIN_MDPU 0x0000
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ 0x0010
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_PPDU 0x0020
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_MPDU 0x0030
-#define IEEE80211_RADIOTAP_TIMESTAMP_SPOS_UNKNOWN 0x00F0
+/* for IEEE80211_RADIOTAP_TIMESTAMP */
+enum ieee80211_radiotap_timestamp_unit_spos {
+ IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MASK = 0x000F,
+ IEEE80211_RADIOTAP_TIMESTAMP_UNIT_MS = 0x0000,
+ IEEE80211_RADIOTAP_TIMESTAMP_UNIT_US = 0x0001,
+ IEEE80211_RADIOTAP_TIMESTAMP_UNIT_NS = 0x0003,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_MASK = 0x00F0,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_BEGIN_MDPU = 0x0000,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_PLCP_SIG_ACQ = 0x0010,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_PPDU = 0x0020,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_EO_MPDU = 0x0030,
+ IEEE80211_RADIOTAP_TIMESTAMP_SPOS_UNKNOWN = 0x00F0,
+};
-#define IEEE80211_RADIOTAP_TIMESTAMP_FLAG_64BIT 0x00
-#define IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT 0x01
-#define IEEE80211_RADIOTAP_TIMESTAMP_FLAG_ACCURACY 0x02
+enum ieee80211_radiotap_timestamp_flags {
+ IEEE80211_RADIOTAP_TIMESTAMP_FLAG_64BIT = 0x00,
+ IEEE80211_RADIOTAP_TIMESTAMP_FLAG_32BIT = 0x01,
+ IEEE80211_RADIOTAP_TIMESTAMP_FLAG_ACCURACY = 0x02,
+};
-/* helpers */
-static inline int ieee80211_get_radiotap_len(unsigned char *data)
+/**
+ * ieee80211_get_radiotap_len - get radiotap header length
+ */
+static inline u16 ieee80211_get_radiotap_len(const char *data)
{
- struct ieee80211_radiotap_header *hdr =
- (struct ieee80211_radiotap_header *)data;
+ struct ieee80211_radiotap_header *hdr = (void *)data;
return get_unaligned_le16(&hdr->it_len);
}
-#endif /* IEEE80211_RADIOTAP_H */
+#endif /* __RADIOTAP_H */
--
2.9.3
