1.\" 2.\" Copyright (c) 2009 Sam Leffler, Errno Consulting 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd August 4, 2009 29.Dt IEEE80211_DDB 9 30.Os 31.Sh NAME 32.Nm ieee80211_ddb 33.Nd 802.11 ddb support 34.Sh SYNOPSIS 35.Bd -ragged 36.Cd options DDB 37.Ed 38.Bd -ragged 39.Cd show vap [addr] 40.Cd show all vaps 41.Cd show com [addr] 42.Cd show sta [addr] 43.Cd show statab [addr] 44.Cd show mesh [addr] 45.Ed 46.Sh DESCRIPTION 47The 48.Nm net80211 49layer includes 50.Xr ddb 4 51support for displaying important data structures. 52This is especially important because wireless applications are often 53built for embedded environments where cross-machine or post-mortem 54debugging facilities like 55.Xr kgdb 1 56are infeasible. 57.Pp 58The most commonly used command is 59.Bd -literal -offset indent 60show all vaps/a 61.Ed 62.Pp 63which dumps the contents of all 64.Vt ieee80211vap , 65.Vt ieee80211com , 66and 67.Vt ieee80211_node 68data structures in the system. 69.Sh SEE ALSO 70.Xr ddb 4 , 71.Xr ieee80211 9 72