416 lines
11 KiB
Bash
Executable File
416 lines
11 KiB
Bash
Executable File
#!/bin/sh
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# $Id: netconfig,v 1.3 2002/07/16 22:25:56 tom Exp $
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#
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# Written by: Mike Glover, March 1997
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# E-mail : vexus@home.com, glover@credit.erin.utoronto.ca
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#
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# Purpose:
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# This is a graphical network configuration program.
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# It was inspired by the cdialog interface that Linux
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# uses. The widgets are the CDK command line widgets
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# provided by the CDK distribution. If you have any
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# questions about CDK, or the command line widgets
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# please feel free to mail me at one of the two above
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# addresses.
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#
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#
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# Copyright 2000, Mike Glover
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# 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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# 3. All advertising materials mentioning features or use of this software
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# must display the following acknowledgment:
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# This product includes software developed by Mike Glover
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# and contributors.
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# 4. Neither the name of Mike Glover nor the names of contributors
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# may be used to endorse or promote products derived from this software
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# without specific prior written permission.
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#
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# THIS SOFTWARE IS PROVIDED BY MIKE GLOVER 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 MIKE GLOVER 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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#
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# Set up the root directory for the system files.
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#
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if [ "$1" = "" ]; then
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ROOTDIR=""
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else
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ROOTDIR=$1;
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fi
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#
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# This copies a file to it's destination and
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# sets the file mode.
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#
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copyFile()
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{
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source=$1;
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dest=$2;
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mode=$3;
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#
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# If the original exists, make a copy.
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#
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if [ -f "${dest}" ]; then
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cp ${dest} ${dest}.old
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fi
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mv ${source} ${dest}
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chmod ${mode} ${dest}
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}
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#
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# Set up some variables.
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#
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CDK_DIALOG="../cdkdialog"
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CDK_ENTRY="../cdkentry"
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CDK_TEMPLATE="../cdktemplate"
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NETWORKS="${ROOTDIR}/etc/networks"
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HOSTS="${ROOTDIR}/etc/hosts"
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HOSTNAME_FILE="${ROOTDIR}/etc/HOSTNAME"
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RESOLV="${ROOTDIR}/etc/resolv.conf"
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INET="${ROOTDIR}/etc/rc.d/rc.inet1"
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IFCONFIG="${ROOTDIR}/sbin/ifconfig"
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ROUTE="${ROOTDIR}/sbin/route"
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tmpFile="/tmp/tmp.$$"
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#
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# Define some global variables.
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#
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IP=""
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HOST=""
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DOMAIN=""
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GATEWAY=""
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NETMASK=""
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NETWORK=""
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BROADCAST=""
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NAMESERVER=""
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#
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# Set the screen and widget colors.
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#
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CDK_WIDGET_COLOR="</5>"; export CDK_WIDGET_COLOR
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CDK_SCREEN_COLOR="</7>"; export CDK_SCREEN_COLOR
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#
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#
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#
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exitMessage()
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{
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exit;
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}
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#
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# Create the opening window.
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#
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intro()
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{
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program=`basename $0`
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buttons="</R>< OK >"
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message="<C></B>Network Configuration
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We will now attempt to configure your mail and TCP/IP. This
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process probably won't work on all possible network
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configurations; but should give you a good start. You will
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be able to reconfigure your network at any time by typing
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in the command:
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<C>${program}"
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${CDK_DIALOG} -m "${message}" -B "${buttons}" -S 2> /dev/null
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}
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#
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# Get the hostname of the machine.
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#
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getHostname()
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{
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label="</24/B>Enter Hostname: "
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title="<C></B>Enter Hostname
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We need to give the machine a name. We only need the base
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hostname of the machine; the domain will be queried for
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next.
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"
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${CDK_ENTRY} -i "${HOST}" -f 20 -F "</56/B>_" -T "${title}" -L "${label}" -S 2> ${tmpFile}
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HOST=`cat ${tmpFile}`
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}
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#
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# Get the domain name of the machine.
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#
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getDomainName()
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{
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label="</24/B>Enter Domain Name: "
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title="<C></B>Enter Domain Name
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Now enter in the domain in which this machine will
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reside. Do </K>NOT<!K> supply a leading '.'
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"
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${CDK_ENTRY} -i "${DOMAIN}" -f 20 -F "</56/B>_" -T "${title}" -L "${label}" -S 2> ${tmpFile}
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DOMAIN=`cat ${tmpFile}`
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}
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#
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# Ask them if they plan to use loopback only.
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#
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loopback()
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{
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buttons="< Yes >
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< No >"
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message="<C></B>Loopback
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Do you plan to only use loopback? If so then your address will
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be 127.0.0.1 and most of the following questions can be skipped.
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<C>Do you plan to ONLY use loopback?
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"
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${CDK_DIALOG} -m "${message}" -B "${buttons}" -S 2> /dev/null
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answer=$?
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if [ $answer -eq 0 ]; then
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exitMessage;
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fi
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}
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#
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# Get the IP Address.
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#
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getIPAddress()
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{
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title="<C> </B>Enter Machine IP Address
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<C>Enter the IP address you plan to assign to this machine.
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"
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plate="###.###.###.###"
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overlay="</56/B>___.___.___.___"
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${CDK_TEMPLATE} -i "${IP}" -p "${plate}" -o "${overlay}" -T "${title}" -m 10 -P -S 2> ${tmpFile}
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IP=`cat ${tmpFile}`
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}
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#
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#
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#
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getGatewayAddress()
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{
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NETWORK=`echo ${IP} | awk 'BEGIN {FS="."} {printf ("%s.%s.%s.0",$1,$2,$3)}'`
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BROADCAST=`echo ${IP} | awk 'BEGIN {FS="."} {printf ("%s.%s.%s.255",$1,$2,$3)}'`
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#
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# Get the machine's gateway address.
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#
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title="<C> </B>Enter Gateway Address
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Enter the address of the gateway for this machine. If you do not
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know, or have one, use the IP address of this machine. The IP
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address you assigned to this machine should already be filled
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in. If you want to erase it press control-x to erase the field
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or hit the backspace or delete key to erase portions of the field.
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"
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tmp=`echo ${IP} | sed 's/\.//g'`
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plate="###.###.###.###"
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overlay="</B/56>___.___.___.___"
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${CDK_TEMPLATE} -d "${tmp}" -p "${plate}" -o "${overlay}" -T "${title}" -m 10 -P -S 2> ${tmpFile}
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GATEWAY=`cat ${tmpFile}`
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#
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# Get the machine's netmask.
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#
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title="<C> </B>Enter Netmask
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Enter your netmask. More often than not this value will be
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255.255.255.0 A defaulted value of 255.255.255.0 is already
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filled in. If you want to erase it press control-x to erase
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the field or hit the backspace or delete key to erase
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portions of the field.
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"
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plate="###.###.###.###"
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overlay="</B/56>___.___.___.___"
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${CDK_TEMPLATE} -d "2552552550" -p "${plate}" -o "${overlay}" -T "${title}" -m 10 -P -S 2> ${tmpFile}
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NETMASK=`cat ${tmpFile}`
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#
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# Find out if the user will be accessing a domain name server.
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#
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message="<C> </B>Named Services
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Will you be accessing a name server.
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"
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buttons="< Yes >
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< No >"
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${CDK_DIALOG} -m "${message}" -B "${buttons}" -S 2> /dev/null
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answer=$?
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#
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# If they answered yes, get the IP address.
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#
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if [ "$answer" -eq 0 ]; then
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#
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# Get the machine's domain name server address.
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#
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title="<C> </B>Enter DNS Address
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Enter the address of the domain name server (DNS) which you want to
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use. The value of the DNS server has been filled in with the
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gateway address you provided. If you want to erase it press
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control-x to erase the field or hit the backspace or delete key
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to erase portions of the field.
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"
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tmp=`echo ${GATEWAY} | sed 's/\.//g'`
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plate="###.###.###.###"
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overlay="</B/56>___.___.___.___"
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${CDK_TEMPLATE} -d "${tmp}" -p "${plate}" -o "${overlay}" -T "${title}" -m 10 -P -S 2> ${tmpFile}
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NAMESERVER=`cat ${tmpFile}`
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fi
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}
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#
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# Call the functions needed.
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#
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#########################################
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# Create the hosts file.
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#
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cat << EOF > ${tmpFile}
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#
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# hosts This file describes a number of hostname-to-address
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# mappings for the TCP/IP subsystem. It is mostly
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# used at boot time, when no name servers are running.
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# On small systems, this file can be used instead of a
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# "named" name server. Just add the names, addresses
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# and any aliases to this file...
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#
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# By the way, Arnt Gulbrandsen <agulbra@nvg.unit.no> says that 127.0.0.1
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# should NEVER be named with the name of the machine. It causes problems
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# for some (stupid) programs, irc and reputedly talk. :^)
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#
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# For loopbacking.
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127.0.0.1 localhost
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$IP ${HOST}.${DOMAIN} ${HOST}
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# End of hosts
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EOF
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copyFile ${tmpFile} "${HOSTS}" 644
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echo "${HOST}.${DOMAIN}" > ${tmpFile}
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copyFile ${tmpFile} ${HOSTNAME_FILE} 644
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#########################################
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# Create the resolv.conf file.
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#
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cat << EOF > ${tmpFile}
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domain ${DOMAIN}
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nameserver ${NAMESERVER}
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EOF
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copyFile ${tmpFile} "${RESOLV}" 644
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#########################################
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# Create the /etc/networks file.
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#
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cat << EOF > ${tmpFile}
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#
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# networks This file describes a number of netname-to-address
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# mappings for the TCP/IP subsystem. It is mostly
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# used at boot time, when no name servers are running.
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#
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loopback 127.0.0.0
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localnet ${IP}
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# End of networks.
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EOF
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copyFile ${tmpFile} "${NETWORKS}" 644
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#########################################
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# Create the /etc/rc.d/inet1 file.
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#
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cat << EOF > ${tmpFile}
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#! /bin/sh
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#
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# rc.inet1 This shell script boots up the base INET system.
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#
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# Version: @(#)/etc/rc.d/rc.inet1 1.01 05/27/93
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#
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HOSTNAME=\`cat /etc/HOSTNAME\`
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# Attach the loopback device.
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${IFCONFIG} lo 127.0.0.1
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${ROUTE} add -net 127.0.0.0
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# IF YOU HAVE AN ETHERNET CONNECTION, use these lines below to configure the
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# eth0 interface. If you're only using loopback or SLIP, don't include the
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# rest of the lines in this file.
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# Edit for your setup.
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IPADDR="$IP" # REPLACE with YOUR IP address!
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NETMASK="$NETMASK" # REPLACE with YOUR netmask!
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NETWORK="$NETWORK" # REPLACE with YOUR network address!
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BROADCAST="$BROADCAST" # REPLACE with YOUR broadcast address, if you
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# have one. If not, leave blank and edit below.
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GATEWAY="$GATEWAY" # REPLACE with YOUR gateway address!
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# Uncomment the line below to configure your ethernet card.
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${IFCONFIG} eth0 \${IP} broadcast \${BROADCAST} netmask \${NETMASK}
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# If the line above is uncommented, the code below can also be uncommented.
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# It sees if the ethernet was properly initialized, and gives the admin some
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# hints about what to do if it wasn't.
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if [ ! \$? = 0 ]; then
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cat << END
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Your ethernet card was not initialized properly. Here are some reasons why this
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may have happened, and the solutions:
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1. Your kernel does not contain support for your card. Including all the
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network drivers in a Linux kernel can make it too large to even boot, and
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sometimes including extra drivers can cause system hangs. To support your
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ethernet, either edit /etc/rc.d/rc.modules to load the support at boottime,
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or compile and install a kernel that contains support.
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2. You don't have an ethernet card, in which case you should comment out this
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section of /etc/rc.d/rc.inet1. (Unless you don't mind seeing this error...)
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END
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fi
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# Uncomment these to set up your IP routing table.
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${ROUTE} add -net \${NETWORK} netmask \${NETMASK}
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${ROUTE} add default gw \${GATEWAY} metric 1
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# End of rc.inet1
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EOF
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copyFile ${tmpFile} "${INET}" 755
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#
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# Spit out the 'we are done' message.
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#
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message="<C></B>Network Setup Complete
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Your network software has now been configured. You may
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rerun this program to reconfigure or you may edit the
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respective system files."
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buttons="< OK >"
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${CDK_DIALOG} -m "${message}" -B "${buttons}" -S 2> /dev/null
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#
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# Clean up
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#
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rm -f ${tmpFile}
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