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Define four new radiotap fields per discussions with John Bicket, Sam

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Leffler, and others:

        IEEE80211_RADIOTAP_RX_FLAGS = 14,
        IEEE80211_RADIOTAP_TX_FLAGS = 15,
        IEEE80211_RADIOTAP_RTS_RETRIES = 16,
        IEEE80211_RADIOTAP_DATA_RETRIES = 17,

I describe the fields in the manual page and in comments in the
header file (cross-referenced by the manual page).
This commit is contained in:
dyoung 2007-03-26 04:32:14 +00:00
parent 1af43bae06
commit 9ff230d3d6
2 changed files with 51 additions and 4 deletions
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17
share/man/man9/ieee80211_radiotap.9
View File

@ -1,8 +1,8 @@
.\" $NetBSD: ieee80211_radiotap.9,v 1.10 2006/03/12 10:40:13 wiz Exp $
.\" $NetBSD: ieee80211_radiotap.9,v 1.11 2007/03/26 04:32:14 dyoung Exp $
.\"
.\" Copyright (c) 2004 Bruce M. Simpson <bms@spc.org>,
.\" Darron Broad <darron@kewl.org>,
.\" David Young <dyoung@pobox.com>.
.\" Darron Broad <darron@kewl.org>.
.\" Copyright (c) 2004, 2007 David Young <dyoung@pobox.com>.
.\" All rights reserved.
.\"
.\" Redistribution and use in source and binary forms, with or without
@ -201,6 +201,17 @@ arbitrary, fixed reference.
This field contains a single unsigned 8-bit value, which indicates the
RF noise power at the antenna, in decibels difference from an
arbitrary, fixed reference.
.It Dv IEEE80211_RADIOTAP_RX_FLAGS
An unsigned 16-bit bitmap indicating properties of received frames.
.It Dv IEEE80211_RADIOTAP_TX_FLAGS
An unsigned 16-bit bitmap indicating properties of transmitted frames.
.It Dv IEEE80211_RADIOTAP_RTS_RETRIES u_int8_t data
Unsigned 8-bit value indicating how many times the NIC retransmitted
the Request to Send (RTS) in an RTS/CTS handshake before receiving
an 802.11 Clear to Send (CTS).
.It Dv IEEE80211_RADIOTAP_DATA_RETRIES
Unsigned 8-bit value indicating how many times the NIC retransmitted
a unicast data packet before receiving an 802.11 Acknowledgement.
.It Dv IEEE80211_RADIOTAP_EXT
This bit is reserved for any future extensions to the
.Vt radiotap

38
sys/net80211/ieee80211_radiotap.h
View File

@ -1,5 +1,5 @@
/* $FreeBSD: src/sys/net80211/ieee80211_radiotap.h,v 1.5 2005/01/22 20:12:05 sam Exp $ */
/* $NetBSD: ieee80211_radiotap.h,v 1.16 2007/01/06 05:51:15 dyoung Exp $ */
/* $NetBSD: ieee80211_radiotap.h,v 1.17 2007/03/26 04:32:14 dyoung Exp $ */
/*-
* Copyright (c) 2003, 2004 David Young. All rights reserved.
@ -163,6 +163,22 @@ struct ieee80211_radiotap_header {
*
* Unitless indication of the Rx/Tx antenna for this packet.
* The first antenna is antenna 0.
*
* IEEE80211_RADIOTAP_RX_FLAGS u_int16_t bitmap
*
* Properties of received frames. See flags defined below.
*
* IEEE80211_RADIOTAP_TX_FLAGS u_int16_t bitmap
*
* Properties of transmitted frames. See flags defined below.
*
* IEEE80211_RADIOTAP_RTS_RETRIES u_int8_t data
*
* Number of rts retries a transmitted frame used.
*
* IEEE80211_RADIOTAP_DATA_RETRIES u_int8_t data
*
* Number of unicast retries a transmitted frame used.
*/
enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_TSFT = 0,
@ -179,6 +195,10 @@ enum ieee80211_radiotap_type {
IEEE80211_RADIOTAP_ANTENNA = 11,
IEEE80211_RADIOTAP_DB_ANTSIGNAL = 12,
IEEE80211_RADIOTAP_DB_ANTNOISE = 13,
IEEE80211_RADIOTAP_RX_FLAGS = 14,
IEEE80211_RADIOTAP_TX_FLAGS = 15,
IEEE80211_RADIOTAP_RTS_RETRIES = 16,
IEEE80211_RADIOTAP_DATA_RETRIES = 17,
IEEE80211_RADIOTAP_EXT = 31,
};
@ -215,4 +235,20 @@ enum ieee80211_radiotap_type {
*/
#define IEEE80211_RADIOTAP_F_BADFCS 0x40 /* does not pass FCS check */
/* For IEEE80211_RADIOTAP_RX_FLAGS */
#define IEEE80211_RADIOTAP_F_RX_BADFCS 0x0001 /* Frame failed CRC check.
*
* Deprecated: use the flag
* IEEE80211_RADIOTAP_F_FCS in
* the IEEE80211_RADIOTAP_FLAGS
* field, instead.
*/
/* 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 */
#endif /* !_NET80211_IEEE80211_RADIOTAP_H_ */