54b4d5e106
The relevant code was commented out in r50680. PR: 57045 Submitted by: Fernando Apesteguía <fernando.apesteguia AT gmail.com>
145 lines
4.1 KiB
Groff
145 lines
4.1 KiB
Groff
.\" Copyright (c) 1983, 1991, 1993
|
|
.\" The Regents of the University of California. All rights reserved.
|
|
.\"
|
|
.\" Redistribution and use in source and binary forms, with or without
|
|
.\" modification, are permitted provided that the following conditions
|
|
.\" are met:
|
|
.\" 1. Redistributions of source code must retain the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer.
|
|
.\" 2. Redistributions in binary form must reproduce the above copyright
|
|
.\" notice, this list of conditions and the following disclaimer in the
|
|
.\" documentation and/or other materials provided with the distribution.
|
|
.\" 3. Neither the name of the University nor the names of its contributors
|
|
.\" may be used to endorse or promote products derived from this software
|
|
.\" without specific prior written permission.
|
|
.\"
|
|
.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
|
|
.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
|
|
.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
.\" SUCH DAMAGE.
|
|
.\"
|
|
.\" @(#)trpt.8 8.2 (Berkeley) 12/11/93
|
|
.\" $FreeBSD$
|
|
.\"
|
|
.Dd February 15, 2018
|
|
.Dt TRPT 8
|
|
.Os
|
|
.Sh NAME
|
|
.Nm trpt
|
|
.Nd transliterate protocol trace
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl a
|
|
.Op Fl f
|
|
.Op Fl j
|
|
.Op Fl p Ar hex-address
|
|
.Op Fl s
|
|
.Oo
|
|
.Ar system Op Ar core
|
|
.Oc
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
utility interrogates the buffer of
|
|
.Tn TCP
|
|
trace records created
|
|
when a socket is marked for
|
|
.Dq debugging
|
|
(see
|
|
.Xr setsockopt 2 ) ,
|
|
and prints a readable description of these records.
|
|
When no options are supplied,
|
|
.Nm
|
|
prints all the trace records found in the system
|
|
grouped according to
|
|
.Tn TCP
|
|
connection protocol control
|
|
block
|
|
.Pq Tn PCB .
|
|
.Pp
|
|
The following options may be used to
|
|
alter this behavior:
|
|
.Bl -tag -width indent
|
|
.It Fl a
|
|
In addition to the normal output,
|
|
print the values of the source and destination
|
|
addresses for each packet recorded.
|
|
.It Fl f
|
|
Follow the trace as it occurs, waiting a short time for additional records
|
|
each time the end of the log is reached.
|
|
.It Fl j
|
|
Just give a list of the protocol control block
|
|
addresses for which there are trace records.
|
|
.It Fl p
|
|
Show only trace records associated with the protocol
|
|
control block at the given address
|
|
.Ar hex-address .
|
|
.It Fl s
|
|
In addition to the normal output,
|
|
print a detailed description of the packet
|
|
sequencing information.
|
|
.El
|
|
.Pp
|
|
The recommended use of
|
|
.Nm
|
|
is as follows.
|
|
Isolate the problem and enable debugging on the
|
|
socket(s) involved in the connection.
|
|
Find the address of the protocol control blocks
|
|
associated with the sockets using the
|
|
.Fl A
|
|
option to
|
|
.Xr netstat 1 .
|
|
Then run
|
|
.Nm
|
|
with the
|
|
.Fl p
|
|
option, supplying the associated
|
|
protocol control block addresses.
|
|
The
|
|
.Fl f
|
|
option can be used to follow the trace log once the trace is located.
|
|
If there are
|
|
many sockets using the debugging option, the
|
|
.Fl j
|
|
option may be useful in checking to see if
|
|
any trace records are present for the socket in
|
|
question.
|
|
.Pp
|
|
If debugging is being performed on a system or
|
|
core file other than the default, the last two
|
|
arguments may be used to supplant the defaults.
|
|
.Sh FILES
|
|
.Bl -tag -width /boot/kernel/kernel -compact
|
|
.It Pa /boot/kernel/kernel
|
|
.It Pa /dev/kmem
|
|
.El
|
|
.Sh DIAGNOSTICS
|
|
.Bl -diag
|
|
.It no namelist
|
|
When the system image does not
|
|
contain the proper symbols to find the trace buffer;
|
|
others which should be self explanatory.
|
|
.El
|
|
.Sh SEE ALSO
|
|
.Xr netstat 1 ,
|
|
.Xr setsockopt 2
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
utility appeared in
|
|
.Bx 4.2 .
|
|
.Sh BUGS
|
|
Should also print the data for each input or output,
|
|
but this is not saved in the trace record.
|
|
.Pp
|
|
The output format is inscrutable and should be described
|
|
here.
|