1 .\" Copyright (c) 2007 Sam Leffler, Errno Consulting
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25 .\" $FreeBSD: src/usr.sbin/wlandebug/wlandebug.8,v 1.8 2009/07/17 21:11:08 sam Exp $
32 .Nd "set/query 802.11 wireless debugging messages"
35 .Op Fl d | Fl i Ar ifnet
36 .Op Fl flag|+flag Ar ...
40 command is a tool for enabling and disabling
41 debugging messages in the
46 without any options will display the current messages
47 enabled for the specified network interface
48 (by default, ``ath0').
49 The default debugging level for new interfaces can be set
53 When run as the super-user
55 can be used to enable and/or disable debugging messages.
57 To enable debugging messages of a certain
61 to disable such messages use
63 Multiple messages can be enabled and disabled with a single command.
65 Messages are organized in the following groups:
66 .Bl -tag -width ".Ar dumppkts"
68 general debugging facilities; equivalent to setting the debug
72 dump packet contents on transmit and receive.
76 errors encountered during input handling.
78 extended rate set handling (for 802.11g).
80 information element processing in 802.11 management frames.
82 management of per-station state.
84 802.11 station association processing; particularly useful to
85 see when stations join and leave a BSS.
87 802.11 station authentication processing.
89 scanning operation; especially useful for debugging problems
90 with not locating an access point.
92 errors encountered during output handling.
95 state machine operation.
97 802.11 power save operation; in hostap mode this enables
98 copious information about buffered frames for stations operating
101 trace operation of Hybrid Wireless Mesh Protocol processing.
103 802.1x state machine operation; not presently meaningful as 802.1x protocol
104 support is implemented in user mode by the
108 radius backend operation as it relates to 802.1x operation;
109 not presently meaningful as 802.1x protocol
110 support is implemented in user mode by the
114 dump packets exchanged with the radius backend for 802.1x operation;
115 not presently meaningful as 802.1x protocol
116 support is implemented in user mode by the
120 trace operation of 802.11s mesh protocol processing.
122 trace operation of the WPA protocol;
123 only partly meaningful as WPA protocol
124 support is mostly implemented in user mode by the
130 trace operation of the Access Control List (ACL) support; see
134 trace operation of WME/WMM protocol processing.
136 trace operation of Atheros SuperG protocol processing.
138 trace operation of IEEE 802.11h protocol processing.
140 trace station inactivity processing; in particular,
141 show when stations associated to an access point are dropped due to
144 trace station mode roaming between access points.
146 trace transmit rate control operation.
149 The following might be used to debug basic station mode operation:
151 .Dl "wlandebug -i ral0 scan+auth+assoc"
153 it enables debug messages while scanning, authenticating to
154 an access point, and associating to an access point.
158 Different wireless drivers support different debugging messages.
165 module for 802.11 protocol processing typically support
166 most of the debugging messages while devices that
167 implement parts of the 802.11 protocol in firmware do not.
171 related debugging tools, see the
172 .Pa /usr/src/tools/tools/net80211
174 .Pa /usr/src/tools/tools/ath
175 directories, with the latter being specific to
178 Some debugging messages are no longer meaningful
179 because protocol processing has moved from the operating
180 system to user mode programs such as
183 .Xr wpa_supplicant 8 .