#!/bin/sh

#########################################################
# automagic configuration for LTSP5 Linux Terminal Server 
#########################################################

# where to find the scripts:
BASE=/usr/share/ltsp/

[ -f /etc/ltsp/ltsp-server.conf ] && . /etc/ltsp/ltsp-server.conf

# the device that the terminals will be connecting to:
if [ "$LTSP_DEV" ]; then
    DEV=$LTSP_DEV
else
    DEV="eth1"
fi

# default ip, netmask, and network addresses:
if [ "$LTSP_DEFAULTIP" ]; then
    DEFAULTIP=$LTSP_DEFAULTIP
else
    DEFAULTIP="192.168.67.1"
fi
if [ "$LTSP_DEFAULTMASK" ]; then
    DEFAULTMASK=$LTSP_DEFAULTMASK
else
    DEFAULTMASK="255.255.255.0"
fi

## end of user configuration

#######################################################################
# do not run unless the sysadmin passes the "-y" flag
#######################################################################
if [ "$1" != "-y" ];
then
    cat << EOF

WARNING: ltsp-initialize should only be run if you know what you are doing.

This will setup your server to support LTSP thin-clients. If you are not
supporting LTSP thin-clients, you DO NOT want to run this command.

This command turns on a bunch of daemons, it turns on a dhcp server, it
turns off firewall rules, mucks around with SELinux, and all sorts of
awful things that you do not want done to your server (unless, of course,
you want to support LTSP thin clients).

If you know what you are getting yourself into, re-run this command
with the "-y" flag and it will do its best to configure your server to
support LTSP thin-clients

EOF
    exit 1
fi

#######################################################################
# get the network settings, exit if the config files are not found
#######################################################################

if [ ! -f /etc/sysconfig/network-scripts/ifcfg-$DEV ]; then
    echo
    echo "ERROR: File not found: /etc/sysconfig/network-scripts/ifcfg-$DEV"
    exit 1
fi

# Source the network configuration
. /etc/sysconfig/network-scripts/ifcfg-$DEV
. /etc/sysconfig/network

# if a variable is not known, set it to the default
[ "$IPADDR" ]    || export IPADDR=$DEFAULTIP
[ "$NETMASK" ]   || export NETMASK=$DEFAULTMASK
[ "$GATEWAY" ]   || export GATEWAY=$DEFAULTIP
[ "$BROADCAST" ] || export `/bin/ipcalc -b $IPADDR $NETMASK`
[ "$NETWORK" ]   || export `/bin/ipcalc -n $IPADDR $NETMASK`

#######################################################################
# update various configuration files
#######################################################################

run-parts $BASE/scripts.d/


#######################################################################
# update the configs that are sensitive to the network settings
#######################################################################

if [ -x $BASE/scripts.d/hosts-update ]
then
    echo running hosts-update
    $BASE/scripts.d/hosts-update $IPADDR $NETWORK $NETMASK
else
    echo WARNING: $BASE/hosts-update not found
fi
    
if [ "$IPADDR" != "$DEFAULTIP" ]
then
    if [ -x $BASE/scripts.d/dhcpd-update ]; then
        echo running dhcpd-update
        $BASE/scripts.d/dhcpd-update $IPADDR $NETWORK $NETMASK
    else
        echo WARNING: $BASE/scripts.d/dhcpd-update not found
    fi
fi