#!/bin/sh
# A script to do basic network configuration.
# Mostly written by Patrick Volkerding <volkerdi@slackware.com>.
# Modified to use /etc/rc.d/rc.inet1.conf Tue Aug 26 16:51:48 PDT 2003 <pjv>
write_config_files() {
#
############################################################################
# The rc.inet1.conf file.
############################################################################
#
# If we're doing loopback, we don't want 127.0.0.1 and 255.255.255.0 in
# rc.inet1.conf... it's better to leave the values null. However, since
# we use the IP in other places, we need to make a copy for here.
RCIPCOPY=$IPADDR
RCMASKCOPY=$NETMASK
if [ "$RCIPCOPY" = "127.0.0.1" ]; then
RCIPCOPY=""
RCMASKCOPY=""
fi
# echo "Creating /$RC..."
/bin/cat << ENDFILE > $RC
# /etc/rc.d/rc.inet1.conf
#
# This file contains the configuration settings for network interfaces.
# If USE_DHCP[interface] is set to "yes", this overrides any other settings.
# If you don't have an interface, leave the settings null ("").
# You can configure network interfaces other than eth0,eth1... by setting
# IFNAME[interface] to the interface's name. If IFNAME[interface] is unset
# or empty, it is assumed you're configuring eth<interface>.
# Several other parameters are available, the end of this file contains a
# comprehensive set of examples.
# =============================================================================
# Config information for eth0:
IPADDR[0]="$RCIPCOPY"
NETMASK[0]="$RCMASKCOPY"
USE_DHCP[0]="$USE_DHCP"
DHCP_HOSTNAME[0]="$DHCP_HOSTNAME"
# Config information for eth1:
IPADDR[1]=""
NETMASK[1]=""
USE_DHCP[1]=""
DHCP_HOSTNAME[1]=""
# Config information for eth2:
IPADDR[2]=""
NETMASK[2]=""
USE_DHCP[2]=""
DHCP_HOSTNAME[2]=""
# Config information for eth3:
IPADDR[3]=""
NETMASK[3]=""
USE_DHCP[3]=""
DHCP_HOSTNAME[3]=""
# Default gateway IP address:
GATEWAY="$GATEWAY"
# Change this to "yes" for debugging output to stdout. Unfortunately,
# /sbin/hotplug seems to disable stdout so you'll only see debugging output
# when rc.inet1 is called directly.
DEBUG_ETH_UP="no"
## Example config information for wlan0. Uncomment the lines you need and fill
## in your info. (You may not need all of these for your wireless network)
#IFNAME[4]="wlan0"
#IPADDR[4]=""
#NETMASK[4]=""
#USE_DHCP[4]="yes"
#DHCP_HOSTNAME[4]="icculus-wireless"
#DHCP_KEEPRESOLV[4]="yes"
#DHCP_KEEPNTP[4]="yes"
#DHCP_KEEPGW[4]="yes"
#DHCP_IPADDR[4]=""
#WLAN_ESSID[4]=BARRIER05
#WLAN_MODE[4]=Managed
##WLAN_RATE[4]="54M auto"
##WLAN_CHANNEL[4]="auto"
##WLAN_KEY[4]="D5AD1F04ACF048EC2D0B1C80C7"
##WLAN_IWPRIV[4]="set AuthMode=WPAPSK | set EncrypType=TKIP | set WPAPSK=96389dc66eaf7e6efd5b5523ae43c7925ff4df2f8b7099495192d44a774fda16"
#WLAN_WPA[4]="wpa_supplicant"
#WLAN_WPADRIVER[4]="ndiswrapper"
## Some examples of additional network parameters that you can use.
## Config information for wlan0:
#IFNAME[4]="wlan0" # Use a different interface name nstead of
# the default 'eth4'
#HWADDR[4]="00:01:23:45:67:89" # Overrule the card's hardware MAC address
#MTU[4]="" # The default MTU is 1500, but you might need
# 1360 when you use NAT'ed IPSec traffic.
#DHCP_KEEPRESOLV[4]="yes" # If you dont want /etc/resolv.conf overwritten
#DHCP_KEEPNTP[4]="yes" # If you don't want ntp.conf overwritten
#DHCP_KEEPGW[4]="yes" # If you don't want the DHCP server to change
# your default gateway
#DHCP_IPADDR[4]="" # Request a specific IP address from the DHCP
# server
#WLAN_ESSID[4]=DARKSTAR # Here, you can override _any_ parameter
# defined in rc.wireless.conf, by prepending
# 'WLAN_' to the parameter's name. Useful for
# those with multiple wireless interfaces.
#WLAN_IWPRIV[4]="set AuthMode=WPAPSK | set EncrypType=TKIP | set WPAPSK=thekey"
# Some drivers require a private ioctl to be
# set through the iwpriv command. If more than
# one is required, you can place them in the
# IWPRIV parameter (separated with the pipe (|)
# character, see the example).
ENDFILE
#
############################################################################
# The networks file.
############################################################################
#
#echo "Creating /$ETCNETWORKS..."
/bin/cat <<EOF >$ETCNETWORKS
#
# networks This file describes a number of netname-to-address
# mappings for the TCP/IP subsystem. It is mostly
# used at boot time, when no name servers are running.
#
loopback 127.0.0.0
localnet $NETWORK
# End of networks.
EOF
chmod 644 $ETCNETWORKS
#
############################################################################
# The hosts file.
############################################################################
#
#echo "Creating /$HOSTS..."
/bin/cat << EOF > $HOSTS
#
# hosts This file describes a number of hostname-to-address
# mappings for the TCP/IP subsystem. It is mostly
# used at boot time, when no name servers are running.
# On small systems, this file can be used instead of a
# "named" name server. Just add the names, addresses
# and any aliases to this file...
#
# By the way, Arnt Gulbrandsen <agulbra@nvg.unit.no> says that 127.0.0.1
# should NEVER be named with the name of the machine. It causes problems
# for some (stupid) programs, irc and reputedly talk. :^)
#
# For loopbacking.
127.0.0.1 localhost
$IPADDR $HOSTNM.$DOMAIN $HOSTNM
# End of hosts.
EOF
chmod 644 $HOSTS
#
############################################################################
# The resolv.conf file.
############################################################################
#
if [ ! "$NAMESERVER" = "" ]; then
echo "search $DOMAIN" >$RESOLV
echo "nameserver $NAMESERVER" >>$RESOLV
else
echo "search $DOMAIN" >$RESOLV
fi
if [ -f $RESOLV ]; then
chmod 644 $RESOLV
fi
#
############################################################################
# The rc.netdevice file.
############################################################################
#
if [ -r /cardfound ]; then
if [ ! "`cat /cardfound`" = "" ]; then
cat << EOF > etc/rc.d/rc.netdevice
# Load module for network device.
# This script is automatically generated during the installation.
/sbin/modprobe `cat /cardfound`
EOF
chmod 755 etc/rc.d/rc.netdevice
fi
fi
rm -f $TMP/tempmsg /cardfound
} # end write_config_files
TMP=/var/log/setup/tmp
if [ ! -d $TMP ]; then
mkdir -p $TMP
chmod 700 $TMP
fi
# This checks IP address syntax.
# usage: syntax_check ADDRESS #-OF-EXPECTED-SEGMENTS (up to 4)
# example: syntax_check 123.22.43.1 4
# returns: 0=found correct 1=too many fields 2=non numeric field found
syntax_check_color() {
RET_CODE=0
SCRATCH=$1
SCRATCH=`echo $SCRATCH | tr "." "/"`
INDEX=$2
while [ ! "$INDEX" = "0" ]; do
# OK, so I'm a LISP-head :^)
FIELD=`basename $SCRATCH`
SCRATCH=`dirname $SCRATCH`
if expr $FIELD + 1 1> /dev/null 2> /dev/null; then
true
else
RET_CODE=2; # non-numeric field
fi
INDEX=`expr $INDEX - 1`
done
if [ ! "$SCRATCH" = "." ]; then
RET_CODE=1; # too many arguments
fi
if [ "$3" = "WARN" -a ! "$RET_CODE" = "0" ]; then
cat << EOF > $TMP/tempmsg
The address you have entered seems to be non-standard. We were expecting
$2 groups of numbers seperated by dots, like: 127.0.0.1
Are you absolutely sure you want to use the address $1?
EOF
dialog --title "WARNING" --yesno "`cat $TMP/tempmsg`" 9 72
if [ $? = 0 ]; then
RET_CODE = 0;
fi
rm -r $TMP/tempmsg
else
if [ "$3" = "ECHO" ]; then
echo $RET_CODE;
fi
fi
return $RET_CODE;
}
# Figure out where we are... cheap hack.
if [ ! -e etc/slackware-version -a ! -e /etc/installer -a ! -e bin/bash ]; then
cd /
fi;
# IMPORTANT!!! NO LEADING '/' in the paths below, or this script will not
# function from the bootdisk.
RC=etc/rc.d/rc.inet1.conf # Where rc.inet1.conf file is.
RESOLV=etc/resolv.conf # Where resolv.conf file is.
HOSTS=etc/hosts # Where hosts file is.
ETCNETWORKS=etc/networks # Where networks file is.
USE_DHCP="" # Use DHCP? "" == no.
DHCP_HOSTNAME="" # This is our DHCP hostname.
#
# defaults:
NETWORK=127.0.0.0
IPADDR=127.0.0.1
NETMASK=255.255.255.0
# Main loop:
while [ 0 ]; do
cat << EOF > $TMP/tempmsg
First, we'll need the name you'd like to give your host.
Only the base hostname is needed right now. (not the domain)
Enter hostname:
EOF
dialog --title "ENTER HOSTNAME" --inputbox "`cat $TMP/tempmsg`" 11 65 \
$HOSTNM 2> $TMP/SeThost
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/SeThost $TMP/tempmsg
exit
fi
HOSTNM="`cat $TMP/SeThost`"
rm -f $TMP/SeThost $TMP/tempmsg
if [ ! "$HOSTNM" = "" ]; then
break;
fi
done
while [ 0 ]; do
cat << EOF > $TMP/tempmsg
Now, we need the domain name for this machine, such as:
example.org
Do not supply a leading '.'
Enter domain name for $HOSTNM:
EOF
dialog --title "ENTER DOMAINNAME FOR '$HOSTNM'" --inputbox \
"`cat $TMP/tempmsg`" \
14 64 $DOMAIN 2> $TMP/SeTdom
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/SeTdom $TMP/tempmsg
exit
fi
DOMAIN="`cat $TMP/SeTdom`"
rm -f $TMP/SeTdom $TMP/tempmsg
if [ ! "$DOMAIN" = "" ]; then
break;
fi
done
echo $HOSTNM.$DOMAIN > etc/HOSTNAME
dialog --title "SETUP IP ADDRESS FOR '$HOSTNM.$DOMAIN'" \
--default-item DHCP \
--menu \
"Now we need to know how your machine connects to the network.\n\
If you have an internal network card and an assigned IP address, gateway, \
and DNS, use the 'static IP' choice to enter these values. If your IP \
address is assigned by a DHCP server (commonly used by cable modem and DSL \
services), select 'DHCP'. If you do not have a network card, select \
the 'loopback' choice. 'loopback' is also the correct choice if your \
only connection to the network will be through a serial modem \
(with SLIP or PPP), or if you are using a laptop network card (these \
are configured in /etc/pcmcia/). What type of network connection \
best describes your machine?" 20 70 3 \
"static IP" "Use a static IP address to configure ethernet" \
"DHCP" "Use a DHCP server to configure ethernet" \
"loopback" "Set up a loopback connection (modem or no net)" 2> $TMP/reply
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/reply
exit
fi
REPLY=`cat $TMP/reply`
rm -f $TMP/reply
if [ "$REPLY" = "DHCP" ]; then
USE_DHCP="yes"
dialog --title "SET DHCP HOSTNAME" --inputbox "Some network providers require \
that the DHCP hostname be set in order to connect. If so, they'll have assigned \
a hostname to your machine, which may look something like CC-NUMBER-A (this \
depends on your ISP). If you were assigned a DHCP hostname, please enter it \
below. If you do not have a DHCP hostname, just hit ENTER or Cancel." 13 62 \
2> $TMP/SeTDHCPHOST
NEW_DHCPHOST="`cat $TMP/SeTDHCPHOST`"
rm -f $TMP/SeTDHCPHOST
# OK, if we actually got something, use it.
DHCP_HOSTNAME="$NEW_DHCPHOST"
elif [ "$REPLY" = "loopback" ]; then
LOOPBACK="yes"
else
LOOPBACK="no"
fi
if [ "$LOOPBACK" = "no" -a ! "$USE_DHCP" = "yes" ]; then
while [ 0 ]; do
if [ -r $TMP/SeTIP ]; then
IPADDR=`cat $TMP/SeTIP`
fi
cat << EOF > $TMP/tempmsg
Enter your IP address for the local machine. Example:
111.112.113.114
Enter IP address for $HOSTNM (aaa.bbb.ccc.ddd):
EOF
dialog --title "ENTER IP ADDRESS FOR '$HOSTNM.$DOMAIN'" --inputbox \
"`cat $TMP/tempmsg`" \
10 68 $IPADDR 2> $TMP/SeTlip
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/SeTlip $TMP/tempmsg
exit
fi
IPADDR="`cat $TMP/SeTlip`"
rm -f $TMP/SeTlip $TMP/tempmsg
if [ "$IPADDR" = "" ]; then
continue;
fi
syntax_check_color $IPADDR 4 WARN
if [ $? = 0 ]; then
echo $IPADDR > $TMP/SeTIP
break;
fi
done
while [ 0 ]; do
if [ -r $TMP/SeTnetmask ]; then
NETMASK=`cat $TMP/SeTnetmask`
fi
cat << EOF > $TMP/tempmsg
Enter your netmask. This will generally look something
like this: 255.255.255.0
Enter netmask (aaa.bbb.ccc.ddd):
EOF
dialog --title "ENTER NETMASK FOR LOCAL NETWORK" --inputbox \
"`cat $TMP/tempmsg`" \
10 65 $NETMASK 2> $TMP/SeTnmask
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/SeTnmask $TMP/tempmsg
exit
fi
NETMASK="`cat $TMP/SeTnmask`"
rm -f $TMP/SeTnmask $TMP/tempmsg
if [ "$NETMASK" = "" ]; then
continue;
fi
syntax_check_color $NETMASK 4 WARN
if [ $? = 0 ]; then
echo $NETMASK > $TMP/SeTnetmask
break;
fi
done
# Set broadcast/network addresses automatically:
BROADCAST=`ipmask $NETMASK $IPADDR | cut -f 1 -d ' '`
NETWORK=`ipmask $NETMASK $IPADDR | cut -f 2 -d ' '`
while [ 0 ]; do
if [ -r $TMP/SeTgateway ]; then
GATEWAY=`cat $TMP/SeTgateway`
fi
cat << EOF > $TMP/tempmsg
Enter the address for the gateway on your network, such as:
`echo $IPADDR | cut -f 1-3 -d .`.1
If you don't have a gateway on your network just hit ENTER
without entering a gateway IP address.
Enter gateway address (aaa.bbb.ccc.ddd):
EOF
dialog --title "ENTER GATEWAY ADDRESS" --inputbox "`cat $TMP/tempmsg`" \
14 64 $GATEWAY 2> $TMP/SeTgate
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/SeTgate $TMP/tempmsg
exit
fi
GATEWAY="`cat $TMP/SeTgate`"
rm -f $TMP/SeTgate $TMP/tempmsg
if [ "$GATEWAY" = "" ]; then
echo > $TMP/SeTgateway
break;
fi
syntax_check_color $GATEWAY 4 WARN
if [ $? = 0 ]; then
echo $GATEWAY > $TMP/SeTgateway
break;
fi
done
fi
if [ "$LOOPBACK" = "no" ]; then
dialog --title "USE A NAMESERVER?" --yesno "Will you be accessing a \
nameserver?" 5 42
if [ $? = 0 ]; then
if [ ! "`cat $TMP/SeTns 2> /dev/null`" = "" ]; then
DNSSAMPLE="`cat $TMP/SeTns 2> /dev/null`"
elif [ "$GATEWAY" = "" ]; then
DNSSAMPLE=`echo $IPADDR | cut -f 1-3 -d .`
else
DNSSAMPLE=$GATEWAY
fi
while [ "$NAMESERVER" = "" ]; do
cat << EOF > $TMP/tempmsg
Here is your current IP address, full hostname, and base hostname:
$IPADDR $HOSTNM.$DOMAIN $HOSTNM
Please give the IP address of the name server to use,
such as $DNSSAMPLE.
You can add more Domain Name Servers later by editing /$RESOLV.
Primary name server to use (aaa.bbb.ccc.ddd):
EOF
dialog --title "SELECT NAMESERVER" --inputbox \
"`cat $TMP/tempmsg`" 17 72 $DNSSAMPLE 2> $TMP/SeTns
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/tempmsg $TMP/SeTns
break
fi
NAMESERVER="`cat $TMP/SeTns`"
rm -f $TMP/tempmsg $TMP/SeTns
done
fi
fi
# Check for existing network driver:
unset DONOTPROBE
if cat /proc/net/dev | grep eth0 1> /dev/null 2> /dev/null ; then
DONOTPROBE=true
fi
# Really, this rc.netdevice thing is mostly obsolete except for
# handmade local scripts anyway, these days with udev...
# So, we'll skip it:
DONOTPROBE=true
if [ -d lib/modules/`uname -r` \
-a ! "$LOOPBACK" = "yes" \
-a ! -x etc/rc.d/rc.hotplug \
-a ! "$DONOTPROBE" = "true" \
-a ! -r /cardfound ]; then
dialog --title "PROBE FOR NETWORK CARD?" --menu "If you like, we \
can look to see what kind of network card you have in your machine, and \
if we find one create an /etc/rc.d/rc.netdevice script to load the module \
for it at boot time. There's a slight bit of danger that the probing \
can cause problems, but it almost always works. If you'd rather configure \
your system manually, you can skip the probing process and edit \
/etc/rc.d/rc.modules or /etc/modules.conf later to have it load the right module." \
16 68 2 \
"probe" "look for network cards to set up" \
"skip" "skip probe; edit /etc/rc.d/rc.modules later" 2> $TMP/reply
if [ $? = 1 -o $? = 255 ]; then
rm -f $TMP/reply
exit
fi
REPLY=`cat $TMP/reply`
rm -f $TMP/reply
if [ ! "$REPLY" = "skip" ]; then
for card in 3c59x 82596 dgrs eepro100 e1000 epic100 hp100 lance \
ne2k-pci olympic pcnet32 rcpci 8139too 8139cp tlan tulip via-rhine \
yellowfin natsemi ; do
chroot . /sbin/modprobe $card 2> /dev/null
if [ $? = 0 ]; then
dialog --title "CARD DETECTED" --msgbox "A networking card using \
the $card.o module has been detected." 5 72
echo "$card" > /cardfound
break;
fi
done
if [ ! -r /cardfound ]; then
# Don't probe for com20020, because it doesn't check and will always load.
# Don't probe for arlan, because it needs irq= to work.
# Don't probe for com90io or com90xx because they taint the kernel.
for card in depca ibmtr 3c359 3c501 3c503 3c505 3c507 3c509 3c515 ac3200 \
abyss acenic at1700 cosa cs89x0 de4x5 de600 \
de620 dmfe dl2k e2100 eepro eexpress eth16i ewrk3 fealnx hamachi hostess_sv11 \
hp-plus hp lanstreamer ni5010 ni52 ni65 ns83820 sb1000 sealevel sis900 sk98lin skfp smc-ultra \
smc9194 smctr starfire sungem sunhme tg3 wd e100 iph5526 lp486e tmspci winbond-840 ; do
chroot . /sbin/modprobe $card 2> /dev/null
if [ $? = 0 ]; then
dialog --title "CARD DETECTED" --msgbox "A networking card using \
the $card.o module has been detected." 5 72
echo "$card" > /cardfound
break
fi
done
fi
if [ ! -r /cardfound ]; then
dialog --title "NO CARD DETECTED" --msgbox "Sorry, but no network \
card could be probed for on your system. Some cards (like non-PCI NE2000s) \
must be supplied with the I/O address to use and can't be probed for safely. \
You'll have to try to configure the card later by editing \
/etc/rc.d/rc.modules or recompiling your kernel." 9 70
fi
fi
fi
if [ "$LOOPBACK" = "yes" ]; then
dialog --title "NETWORK SETUP COMPLETE" --yesno "Your networking \
system is now configured to use loopback:
IP address: 127.0.0.1
Netmask: 255.255.255.0
Is this correct? Press 'Yes' to continue, or 'No' to reconfigure." 0 0
RETVAL=$?
elif [ "$USE_DHCP" = "" ]; then
while [ 0 ]; do
dialog --title "CONFIRM NETWORK SETUP" \
--ok-label Accept \
--extra-label Edit \
--cancel-label Restart \
--inputmenu \
"These are the settings you have entered. To accept them and complete \
the networking setup, press enter. If you need to make any changes, you \
can do that now (or reconfigure later using 'netconfig')." \
22 60 12 \
"Hostname:" "$HOSTNM" \
"Domain name:" "$DOMAIN" \
"IP address:" "$IPADDR" \
"Netmask:" "$NETMASK" \
"Gateway:" "$GATEWAY" \
"Nameserver:" "$NAMESERVER" 2> $TMP/tempmsg
RETVAL=$?
if [ "$RETVAL" = "3" ]; then
FIELD=`cat $TMP/tempmsg | cut -f 1 -d : | cut -f 2- -d ' '`
NEWVAL=`cat $TMP/tempmsg | cut -f 2 -d : | cut -f 2- -d ' '`
if [ "$FIELD" = "Hostname" ]; then
HOSTNM=$NEWVAL
elif [ "$FIELD" = "Domain name" ]; then
DOMAIN=$NEWVAL
elif [ "$FIELD" = "IP address" ]; then
IPADDR=$NEWVAL
elif [ "$FIELD" = "Netmask" ]; then
NETMASK=$NEWVAL
elif [ "$FIELD" = "Gateway" ]; then
GATEWAY=$NEWVAL
elif [ "$FIELD" = "Nameserver" ]; then
NAMESERVER=$NEWVAL
fi
else
break
fi
done
else # DHCP was used
dialog --title "CONFIRM SETUP COMPLETE" \
--yesno "Your networking system is now configured to use DHCP:
Hostname: $HOSTNM
Domain name: $DOMAIN
IP address: (use DHCP server)
Netmask: (use DHCP server)
Gateway: (use DHCP server)
Nameserver: (use DHCP server)
Is this correct? Press 'Yes' to continue, or 'No' to reconfigure." 0 0
RETVAL=$?
fi
if [ "$RETVAL" = "0" ]; then
echo $HOSTNM.$DOMAIN > etc/HOSTNAME
write_config_files
if [ "$1" = "" ]; then
dialog --msgbox "Settings accepted. Basic network configuration is complete." 6 40
fi
else
if [ "$1" = "" ]; then
dialog --msgbox "Settings discarded. Run the 'netconfig' command again if you need to reconfigure your network settings." 6 60
fi
fi
exit $RETVAL