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

3 files changed, 0 insertions, 169 deletions

diff --git a/share/examples/ppp/isdnd.rc b/share/examples/ppp/isdnd.rc
deleted file mode 100644
index 0ceef6d..0000000
--- a/share/examples/ppp/isdnd.rc
+++ /dev/null
@@ -1,69 +0,0 @@
-#	example of a configuration file for the isdn daemon & user-ppp
-#
-# $FreeBSD$
-
-
-# SYSTEM section: isdnd global configuration parameters
-
-system
-
-# accounting
-
-acctall		= on			# generate info for everything
-acctfile	= /var/log/isdnd.acct	# name & location of accounting file
-useacctfile	= yes			# generate accouting info to file
-isdntime = on
-monitor-allowed	= no			# global switch: monitor on/off
-
-
-# User-ppp example
-
-entry
-name			= userppp0
-usrdevicename		= rbch
-usrdeviceunit		= 0
-isdncontroller  	= 0
-isdnchannel		= -1
-local-phone-incoming	= 1234567
-remote-phone-incoming	= *
-local-phone-dialout	= 1234567	# This *MUST* be your local number
-remote-phone-dialout	= 1234567	# ppp(8) will override this
-remdial-handling	= first
-dialin-reaction		= ignore
-dialout-type		= normal
-b1protocol		= hdlc
-idletime-incoming	= 900		# Should be larger than ppp's timeout
-idletime-outgoing	= 900		# Should be larger than ppp's timeout
-unitlength		= 0
-unitlengthsrc		= conf
-dialretries		= 1
-dialrandincr		= on
-recoverytime		= 1		# Should be smaller than ppp's redial
-usedown			= off
-downtries		= 2
-downtime		= 30
-
-entry
-name			= userppp1
-usrdevicename		= rbch
-usrdeviceunit		= 1
-isdncontroller  	= 0
-isdnchannel		= -1
-local-phone-incoming	= 1234567
-remote-phone-incoming	= *
-local-phone-dialout	= 1234567	# This *MUST* be your local number
-remote-phone-dialout	= 1234567	# ppp(8) will override this
-remdial-handling	= first
-dialin-reaction		= accept
-dialout-type		= normal
-b1protocol		= hdlc
-idletime-incoming	= 900		# Should be larger than ppp's timeout
-idletime-outgoing	= 900		# Should be larger than ppp's timeout
-unitlength		= 0
-unitlengthsrc		= conf
-dialretries		= 1
-dialrandincr		= on
-recoverytime		= 1		# Should be smaller than ppp's redial
-usedown			= off
-downtries		= 2
-downtime		= 30
diff --git a/share/examples/ppp/ppp.conf.isdn b/share/examples/ppp/ppp.conf.isdn
deleted file mode 100644
index 8946b4b..0000000
--- a/share/examples/ppp/ppp.conf.isdn
+++ /dev/null
@@ -1,98 +0,0 @@
-#
-# Copyright (c) 1997 Brian Somers <brian@Awfulhak.org>
-# 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.
-#
-# $FreeBSD$
-
-# This is an example ppp profile for bringing up a multilink ppp connection
-# over ISDN.  It needs at least version 0.83.0 of the i4b code.  An example
-# isdnd configuration file is also supplied in this directory (isdnd.rc)
-#
-# NOTE: This is for use with i4b-supported ISDN cards.  If you have an
-# external Terminal Adapter (TA) plugged into a serial port on your
-# machine, you should use the TA example in ppp.conf.sample.
-#
-isdn:
- set phone 12345678	# Replace this with your ISPs phone number
-
- set authname "somename"  # Replace these with your login name & password.
- set authkey "somepasswd" # This profile assumes you're using PAP or CHAP.
-
- set enddisc mac	# Assuming you have a LAN
-
- enable lqr echo
- set reconnect 3 5
- set redial 3 10
- set lqrperiod 45
- disable pred1 deflate mppe
- deny pred1 deflate mppe
-
- set timeout 60 300	# The minimum charge period is 5 minutes, so don't
-			# hangup before then
-
- # We have no chat scripts in the ISDN world (yet)
- set dial
- set login
- set logout
- set hangup
-
- set device /dev/i4brbch0 /dev/i4brbch1		# Raw B-channel devices
- set speed sync					# ISDN is synchronous
-
- enable dns			# Ask the peer what to put in resolv.conf
-
- # Take a wild guess at an IP number and let the other side decide
- set ifaddr 172.16.0.1/0 212.0.0.0/0 0 0
- add! default hisaddr
-
- set mrru 1500				# Multilink mode please
- set mru 1504				# Room for the MP header
-
- clone 1,2				# Two new links
- link deflink rm			# And get rid of the original one
-
- link * set mode auto			# Automatically manage the second link
- set autoload 10 80 30			# Down @10% usage, up at 80%, 30s sample
-
- set server /var/run/ppp/ppp-isdn "" 0177 # The diagnostic port (-rw-------)
-
-#
-# When phone calls become free (say 0:00 Saturday morning), we may want
-# this in crontab (``crontab -l'', not /etc/crontab):
-#
-#     1 0 0 0 6 /usr/sbin/pppctl /var/run/ppp/ppp-isdn link \* set mode ddial
-#
-# and when we have to pay again (say 23:59 Sunday night), we may want
-# this:
-#
-#     54 23 0 0 0 /usr/sbin/pppctl /var/run/ppp/ppp-isdn link \* set mode auto
-#
-# And of course just in case of a weekend reboot, add
-# /usr/local/etc/rc.d/ppp.sh:
-#
-#   #! /bin/sh
-#   [ ."$1" != .start ] && exit 0
-#   case `date +%w` in
-#   6|0) /usr/sbin/pppctl /var/run/ppp/ppp-isdn link \* set mode ddial;;
-#   esac
diff --git a/share/examples/ppp/ppp.conf.sample b/share/examples/ppp/ppp.conf.sample
index f59d18d..7863eaa 100644
--- a/share/examples/ppp/ppp.conf.sample
+++ b/share/examples/ppp/ppp.conf.sample
@@ -672,8 +672,6 @@ callback-server-client-decides:
 #  It's worth increasing your MTU and MRU slightly in multi-link mode to
 #  prevent full packets from being fragmented.
 #
-#  See ppp.conf.isdn for an example of how to do multi-link isdn.
-#
 #  You can now ``dial'' specific links, or even dial all links at the
 #  same time.  The `dial' command may also be prefixed with a specific
 #  link that should do the dialing.