From patchwork Wed Jan 25 14:31:51 2017 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Johannes Berg X-Patchwork-Id: 9537181 X-Patchwork-Delegate: johannes@sipsolutions.net Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id B498E601D3 for ; Wed, 25 Jan 2017 14:42:18 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id A6B4C26220 for ; Wed, 25 Jan 2017 14:42:18 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 9B48027E33; Wed, 25 Jan 2017 14:42:18 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-6.9 required=2.0 tests=BAYES_00,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9688C26220 for ; Wed, 25 Jan 2017 14:42:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751917AbdAYOmP (ORCPT ); Wed, 25 Jan 2017 09:42:15 -0500 Received: from s3.sipsolutions.net ([5.9.151.49]:37262 "EHLO sipsolutions.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751865AbdAYOmO (ORCPT ); Wed, 25 Jan 2017 09:42:14 -0500 Received: by sipsolutions.net with esmtpsa (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.88) (envelope-from ) id 1cWOc5-0005Cq-4j; Wed, 25 Jan 2017 15:31:53 +0100 From: Johannes Berg To: linux-wireless@vger.kernel.org Cc: Johannes Berg Subject: [PATCH] wireless: radiotap: rewrite the radiotap header file Date: Wed, 25 Jan 2017 15:31:51 +0100 Message-Id: <20170125143151.11187-1-johannes@sipsolutions.net> X-Mailer: git-send-email 2.9.3 Sender: linux-wireless-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-wireless@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: Johannes Berg 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 --- 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@kismetwireless.net) - */ - -#ifndef IEEE80211RADIOTAP_H -#define IEEE80211RADIOTAP_H +#ifndef __RADIOTAP_H +#define __RADIOTAP_H -#include #include #include -/* 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 */