diff options
Diffstat (limited to 'include/net/ieee80211_radiotap.h')
| -rw-r--r-- | include/net/ieee80211_radiotap.h | 117 |
1 files changed, 96 insertions, 21 deletions
diff --git a/include/net/ieee80211_radiotap.h b/include/net/ieee80211_radiotap.h index a0c2b41a24d..b0fd9476c53 100644 --- a/include/net/ieee80211_radiotap.h +++ b/include/net/ieee80211_radiotap.h @@ -1,7 +1,4 @@ -/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */ -/* $NetBSD: ieee80211_radiotap.h,v 1.11 2005/06/22 06:16:02 dyoung Exp $ */ - -/*- +/* * Copyright (c) 2003, 2004 David Young. All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -40,9 +37,8 @@ #include <linux/if_ether.h> #include <linux/kernel.h> +#include <asm/unaligned.h> -/* Radiotap header version (from official NetBSD feed) */ -#define IEEE80211RADIOTAP_VERSION "1.5" /* Base version of the radiotap packet header data */ #define PKTHDR_RADIOTAP_VERSION 0 @@ -61,12 +57,8 @@ * readers. */ -/* XXX tcpdump/libpcap do not tolerate variable-length headers, - * yet, so we pad every radiotap header to 64 bytes. Ugh. - */ -#define IEEE80211_RADIOTAP_HDRLEN 64 - -/* The radio capture header precedes the 802.11 header. +/* + * The radio capture header precedes the 802.11 header. * All data in the header is little endian on all platforms. */ struct ieee80211_radiotap_header { @@ -88,7 +80,7 @@ struct ieee80211_radiotap_header { * Additional extensions are made * by setting bit 31. */ -}; +} __packed; /* Name Data type Units * ---- --------- ----- @@ -186,6 +178,18 @@ struct ieee80211_radiotap_header { * * 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. */ enum ieee80211_radiotap_type { IEEE80211_RADIOTAP_TSFT = 0, @@ -206,6 +210,14 @@ enum ieee80211_radiotap_type { IEEE80211_RADIOTAP_TX_FLAGS = 15, IEEE80211_RADIOTAP_RTS_RETRIES = 16, IEEE80211_RADIOTAP_DATA_RETRIES = 17, + + IEEE80211_RADIOTAP_MCS = 19, + IEEE80211_RADIOTAP_AMPDU_STATUS = 20, + IEEE80211_RADIOTAP_VHT = 21, + + /* valid in every it_present bitmap, even vendor namespaces */ + IEEE80211_RADIOTAP_RADIOTAP_NAMESPACE = 29, + IEEE80211_RADIOTAP_VENDOR_NAMESPACE = 30, IEEE80211_RADIOTAP_EXT = 31 }; @@ -218,6 +230,10 @@ enum ieee80211_radiotap_type { #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 @@ -238,21 +254,80 @@ enum ieee80211_radiotap_type { * 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_BADFCS 0x0001 /* frame failed crc check */ +#define IEEE80211_RADIOTAP_F_RX_BADPLCP 0x0002 /* frame has bad PLCP */ /* 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_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 + +#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 + +#define 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_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 + +#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 + +#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 + +/* helpers */ +static inline int ieee80211_get_radiotap_len(unsigned char *data) +{ + struct ieee80211_radiotap_header *hdr = + (struct ieee80211_radiotap_header *)data; -/* Ugly macro to convert literal channel numbers into their mhz equivalents - * There are certianly some conditions that will break this (like feeding it '30') - * but they shouldn't arise since nothing talks on channel 30. */ -#define ieee80211chan2mhz(x) \ - (((x) <= 14) ? \ - (((x) == 14) ? 2484 : ((x) * 5) + 2407) : \ - ((x) + 1000) * 5) + return get_unaligned_le16(&hdr->it_len); +} #endif /* IEEE80211_RADIOTAP_H */ |