229 lines
6.9 KiB
Groff
229 lines
6.9 KiB
Groff
.\"
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.\" Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $Id: isdntrace.8,v 1.14 2000/02/13 15:26:52 hm Exp $
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.\"
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.\" $FreeBSD$
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.\"
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.\" last edit-date: [Wed Nov 1 15:52:28 2000]
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.\"
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.Dd November 1, 2000
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.Dt ISDNTRACE 8
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.Os
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.Sh NAME
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.Nm isdntrace
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.Nd isdn4bsd ISDN protocol trace utility
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.Sh SYNOPSIS
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.Nm
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.Op Fl a
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.Op Fl b
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.Op Fl d
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.Op Fl f Ar filename
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.Op Fl h
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.Op Fl i
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.Op Fl l
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.Op Fl n Ar number
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.Op Fl o
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.Op Fl p Ar filename
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.Op Fl r
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.Op Fl u Ar number
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.Op Fl x
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.Op Fl B
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.Op Fl F
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.Op Fl P
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.Op Fl R Ar unit
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.Op Fl T Ar unit
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.Sh DESCRIPTION
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The
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.Nm
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utility is part of the isdn4bsd package and is used to provide the user with a
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mnemonic display of the layers 1, 2 and 3 protocol activities on
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the D channel and hex dump of the B channel(s) activities.
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.Pp
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Together with two passive supported cards and an easy to build cable it can
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also be used to monitor the complete traffic on a S0 bus providing S0 bus
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analyzer features.
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.Pp
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The
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.Nm
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utility is only available for passive supported cards.
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.Pp
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.Em Note
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.Pp
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All filenames, user specified or default, get a date and time stamp string
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added in the form -yyyymmdd-hhmmss: a hyphen, four digits year, two digits
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month and day, a hyphen and two digits hour, minutes and seconds.
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Tracefiles no longer get overwritten.
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In case a new filename is needed within a second, the filename-generating
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mechanism sleeps one second.
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.Pp
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In case the program is sent a USR1 signal, a new user specified or default
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filename with a new date and timestamp is generated and opened.
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.Pp
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The following options can be used:
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.Bl -tag -width Ds
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.It Fl a
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Run
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.Nm
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in analyzer mode by using two passive cards and a custom cable which can
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be build as described in the file
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.Em cable.txt
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in the isdn4bsd source distribution.
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One card acts as a receiver for the
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transmitting direction on the S0 bus while the other card acts as a receiver
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for the receiving direction on the S0 bus.
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Complete traffic monitoring is
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possible using this setup.
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.It Fl b
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switch B channel tracing on (default off).
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.It Fl d
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switch D channel tracing off (default on).
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.It Fl f
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Use
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.Ar filename
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as the name of a file into which to write tracing output (default filename is
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isdntrace<n> where n is the number of the unit to trace).
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.It Fl h
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switch display of header off (default on).
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.It Fl i
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print layer 1 (I.430) INFO signals to monitor layer 1 activity (default off).
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.It Fl l
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switch displaying of Layer 2 (Q.921) frames off (default on).
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.It Fl n
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This option takes a numeric argument specifying the minimum
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frame size in octets a frame must have to be displayed.
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(default 0)
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.It Fl o
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switch off writing trace output to a file (default on).
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.It Fl p
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Use
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.Ar filename
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as the name of a file used for the -B and -P options (default filename
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is isdntracebin<n> where n is the number of the unit to trace).
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.It Fl r
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Switch off printing a raw hexadecimal dump of the packets preceding
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the decoded protocol information (default on).
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.It Fl u
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Use
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.Ar number
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as the unit number of the controller card to trace (default 0).
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.It Fl x
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Switch on printing of packets with a non-Q.931 protocol discriminator.
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(default off).
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.It Fl B
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Write undecoded binary trace data to a file for later or remote
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analyzing (default off).
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.It Fl F
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This option can only be used when option -P (playback from binary data file)
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is used.
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The -F option causes playback not to stop at end of file but rather
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to wait for additional data to be available from the input file.
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.Pp
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This option is useful when trace data is accumulated in binary format (to
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save disk space) but a monitoring functionality is desired.
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(default off).
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.It Fl P
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Read undecoded binary trace data from file instead from device (default off).
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.It Fl R
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Use
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.Ar unit
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as the receiving interface unit number in analyze mode.
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.It Fl T
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Use
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.Ar unit
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as the transmitting interface unit number in analyze mode.
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.El
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.Pp
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When the USR1 signal is sent to a
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.Nm
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process, the currently used logfiles are reopened, so that logfile
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rotation becomes possible.
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.Pp
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The trace output should be obvious.
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It is very handy to have the following
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standard texts available when tracing ISDN protocols:
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.Pp
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.Bl -tag -width Ds -compact -offset indent
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.It Ar I.430
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ISDN BRI layer 1 protocol description.
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.It Ar Q.921
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ISDN D-channel layer 2 protocol description.
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.It Ar Q.931
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ISDN D-channel layer 3 protocol description.
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.It Ar 1TR6
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German-specific ISDN layer 3 protocol description.
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(NOTICE: decoding
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of the 1TR6 protocol is included but not supported since i dont have
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any longer access to a 1TR6 based ISDN installation.)
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.El
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.Pp
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The
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.Nm
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utility
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automatically detects the layer 3 protocol being used by looking at the
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Protocol Discriminator (see: Q.931/1993 pp.\& 53).
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.Sh FILES
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.Bl -tag -width daddeldi -compact
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.It Pa /dev/i4btrc<n>
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The devicefile(s) used to get the trace messages for ISDN card unit <n>
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out of the kernel.
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.El
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.Sh EXAMPLES
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The command:
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.Bd -literal -offset indent
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isdntrace -f /var/tmp/isdn.trace
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.Ed
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.Pp
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will start D channel tracing on passive controller 0 with all except B
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channel tracing enabled and logs everything into the output file
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/var/tmp/isdn.trace-yyyymmdd-hhmmss (where yyyymmdd and hhmmss are replaced
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by the current date and time values).
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.Sh SEE ALSO
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.Xr isdnd 8
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.Sh BUGS
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Still some or more left.
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.Sh STANDARDS
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ITU Recommendations I.430, Q.920, Q.921, Q.930, Q.931
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.Pp
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FTZ Richtlinie 1TR3, Band III
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.Pp
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ITU Recommendation Q.932 (03/93), Q.950 (03/93)
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.Pp
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ETSI Recommendation ETS 300 179 (10/92), ETS 300 180 (10/92)
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.Pp
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ETSI Recommendation ETS 300 181 (04/93), ETS 300 182 (04/93)
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.Pp
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ITU Recommendation X.208, X.209
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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utility was written by
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.An Gary Jennejohn Aq gj@FreeBSD.org
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and
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.An Hellmuth Michaelis Aq hm@FreeBSD.org .
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.Pp
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This manual page was written by
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.An Hellmuth Michaelis .
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