Remove ISDN4BSD (I4B) from HEAD as it is not MPSAFE and

parts relied on the now removed NET_NEEDS_GIANT.
Most of I4B has been disconnected from the build
since July 2007 in HEAD/RELENG_7.

This is what was removed:
- configuration in /etc/isdn
- examples
- man pages
- kernel configuration
- sys/i4b (drivers, layers, include files)
- user space tools
- i4b support from ppp
- further documentation

Discussed with: rwatson, re

1 files changed, 0 insertions, 228 deletions

diff --git a/usr.sbin/i4b/isdntrace/isdntrace.8 b/usr.sbin/i4b/isdntrace/isdntrace.8
deleted file mode 100644
index 166f420..0000000
--- a/usr.sbin/i4b/isdntrace/isdntrace.8
+++ /dev/null
@@ -1,228 +0,0 @@
-.\"
-.\" Copyright (c) 1997, 2000 Hellmuth Michaelis. 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.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
-.\"
-.\"	$Id: isdntrace.8,v 1.14 2000/02/13 15:26:52 hm Exp $
-.\"
-.\" $FreeBSD$
-.\"
-.\"	last edit-date: [Wed Nov  1 15:52:28 2000]
-.\"
-.Dd November 1, 2000
-.Dt ISDNTRACE 8
-.Os
-.Sh NAME
-.Nm isdntrace
-.Nd isdn4bsd ISDN protocol trace utility
-.Sh SYNOPSIS
-.Nm
-.Op Fl a
-.Op Fl b
-.Op Fl d
-.Op Fl f Ar filename
-.Op Fl h
-.Op Fl i
-.Op Fl l
-.Op Fl n Ar number
-.Op Fl o
-.Op Fl p Ar filename
-.Op Fl r
-.Op Fl u Ar number
-.Op Fl x
-.Op Fl B
-.Op Fl F
-.Op Fl P
-.Op Fl R Ar unit
-.Op Fl T Ar unit
-.Sh DESCRIPTION
-The
-.Nm
-utility is part of the isdn4bsd package and is used to provide the user with a
-mnemonic display of the layers 1, 2 and 3 protocol activities on
-the D channel and hex dump of the B channel(s) activities.
-.Pp
-Together with two passive supported cards and an easy to build cable it can
-also be used to monitor the complete traffic on a S0 bus providing S0 bus
-analyzer features.
-.Pp
-The
-.Nm
-utility is only available for passive supported cards.
-.Pp
-.Em Note
-.Pp
-All filenames, user specified or default, get a date and time stamp string
-added in the form -yyyymmdd-hhmmss: a hyphen, four digits year, two digits
-month and day, a hyphen and two digits hour, minutes and seconds.
-Tracefiles no longer get overwritten.
-In case a new filename is needed within a second, the filename-generating
-mechanism sleeps one second.
-.Pp
-In case the program is sent a USR1 signal, a new user specified or default
-filename with a new date and timestamp is generated and opened.
-.Pp
-The following options can be used:
-.Bl -tag -width Ds
-.It Fl a
-Run
-.Nm
-in analyzer mode by using two passive cards and a custom cable which can
-be build as described in the file
-.Em cable.txt
-in the isdn4bsd source distribution.
-One card acts as a receiver for the
-transmitting direction on the S0 bus while the other card acts as a receiver
-for the receiving direction on the S0 bus.
-Complete traffic monitoring is
-possible using this setup.
-.It Fl b
-switch B channel tracing on (default off).
-.It Fl d
-switch D channel tracing off (default on).
-.It Fl f
-Use
-.Ar filename
-as the name of a file into which to write tracing output (default filename is
-isdntrace<n> where n is the number of the unit to trace).
-.It Fl h
-switch display of header off (default on).
-.It Fl i
-print layer 1 (I.430) INFO signals to monitor layer 1 activity (default off).
-.It Fl l
-switch displaying of Layer 2 (Q.921) frames off (default on).
-.It Fl n
-This option takes a numeric argument specifying the minimum
-frame size in octets a frame must have to be displayed.
-(default 0)
-.It Fl o
-switch off writing trace output to a file (default on).
-.It Fl p
-Use
-.Ar filename
-as the name of a file used for the -B and -P options (default filename
-is isdntracebin<n> where n is the number of the unit to trace).
-.It Fl r
-Switch off printing a raw hexadecimal dump of the packets preceding
-the decoded protocol information (default on).
-.It Fl u
-Use
-.Ar number
-as the unit number of the controller card to trace (default 0).
-.It Fl x
-Switch on printing of packets with a non-Q.931 protocol discriminator.
-(default off).
-.It Fl B
-Write undecoded binary trace data to a file for later or remote
-analyzing (default off).
-.It Fl F
-This option can only be used when option -P (playback from binary data file)
-is used.
-The -F option causes playback not to stop at end of file but rather
-to wait for additional data to be available from the input file.
-.Pp
-This option is useful when trace data is accumulated in binary format (to
-save disk space) but a monitoring functionality is desired.
-(default off).
-.It Fl P
-Read undecoded binary trace data from file instead from device (default off).
-.It Fl R
-Use
-.Ar unit
-as the receiving interface unit number in analyze mode.
-.It Fl T
-Use
-.Ar unit
-as the transmitting interface unit number in analyze mode.
-.El
-.Pp
-When the USR1 signal is sent to a
-.Nm
-process, the currently used logfiles are reopened, so that logfile
-rotation becomes possible.
-.Pp
-The trace output should be obvious.
-It is very handy to have the following
-standard texts available when tracing ISDN protocols:
-.Pp
-.Bl -tag -width Ds -compact -offset indent
-.It Ar I.430
-ISDN BRI layer 1 protocol description.
-.It Ar Q.921
-ISDN D-channel layer 2 protocol description.
-.It Ar Q.931
-ISDN D-channel layer 3 protocol description.
-.It Ar 1TR6
-German-specific ISDN layer 3 protocol description.
-(NOTICE: decoding
-of the 1TR6 protocol is included but not supported since i dont have
-any longer access to a 1TR6 based ISDN installation.)
-.El
-.Pp
-The
-.Nm
-utility
-automatically detects the layer 3 protocol being used by looking at the
-Protocol Discriminator (see: Q.931/1993 pp.\& 53).
-.Sh FILES
-.Bl -tag -width daddeldi -compact
-.It Pa /dev/i4btrc<n>
-The devicefile(s) used to get the trace messages for ISDN card unit <n>
-out of the kernel.
-.El
-.Sh EXAMPLES
-The command:
-.Bd -literal -offset indent
-isdntrace -f /var/tmp/isdn.trace
-.Ed
-.Pp
-will start D channel tracing on passive controller 0 with all except B
-channel tracing enabled and logs everything into the output file
-/var/tmp/isdn.trace-yyyymmdd-hhmmss (where yyyymmdd and hhmmss are replaced
-by the current date and time values).
-.Sh SEE ALSO
-.Xr isdnd 8
-.Sh STANDARDS
-ITU Recommendations I.430, Q.920, Q.921, Q.930, Q.931
-.Pp
-FTZ Richtlinie 1TR3, Band III
-.Pp
-ITU Recommendation Q.932 (03/93), Q.950 (03/93)
-.Pp
-ETSI Recommendation ETS 300 179 (10/92), ETS 300 180 (10/92)
-.Pp
-ETSI Recommendation ETS 300 181 (04/93), ETS 300 182 (04/93)
-.Pp
-ITU Recommendation X.208, X.209
-.Sh AUTHORS
-.An -nosplit
-The
-.Nm
-utility was written by
-.An Gary Jennejohn Aq gj@FreeBSD.org
-and
-.An Hellmuth Michaelis Aq hm@FreeBSD.org .
-.Pp
-This manual page was written by
-.An Hellmuth Michaelis .
-.Sh BUGS
-Still some or more left.