#!/bin/bash
#Framework, welches ein komplettes Linux System aus den Sourcen erstellt
#dieses Framework wird im CVS Repository
#:pserver:cvs.compuextreme.de:/Data/cvs zur Verfügung gestellt
#
#Lage dieser Datei im Archiv: $Source: /Data/cvs/ViitorMake/templates/Script.template,v $
#
#(c) 2003 Harald Kueller, Germany
#This program is free software; you can redistribute it and/or
#modify ist under the terms of the GNU General Public License
#as published by the Free Software Foundation; either version
#2 of the License, or (at your option) any later version.
#
#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
#See the GNU General Public License for more details.
#
#You should have received a copy of the GNU General Public License
#along with this program; if not write to the Free Software Foundation,
#Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
#
#Script:if_up
#
#Letzte Änderung von: $Author: $
#Datum der letzten Änderung: $Date: $
#Version der Datei: $Revision: $
#
#$Log: $
#

source /etc/init.d/functions

DEV=$1

CheckForLink() {
	NETDEVICE=$1
	if [ -f /usr/sbin/ethtool ]; then
          #Einige Dumme Interfaces (z.B. die VMware Emulationen) Zeiten
          #den korrekten Status erst nach einem ifconfig up
          WAITTIME=7
          ZAHLER=0
          if ! ethtool $NETDEVICE|grep -q "No data available"; then
                while [ ${ZAHLER} -le ${WAITTIME} ]; do
                        if [ ! `ethtool $NETDEVICE|grep Link|awk '{print $3}'` == "yes" ]; then
                                (( ZAHLER++ ))
                        else
                                break
                        fi
                        sleep 1
                done
                if [ `ethtool $NETDEVICE|grep Link|awk '{print $3}'` == "yes" ]; then
                        touch /var/run/net_up
			return 0
                else
			return 1
		fi
          else
                touch /var/run/net_up
		return 0
          fi
        else
                touch /var/run/net_up
		return 0
        fi
}

if [ ! "$DEV" ]; then
  echo "Usage: $0 <NetworkInterfaceName>"
  exit 10
fi

#Check for files in /etc/sysconfig/net
#hostname.<if> will setup static ip for the interfaces, based
#on /etc/hosts (hostname) and /etc/networks (netmask/Broadcast)
#<if>.dhcp will do a dynamic setup for the interface with dhcp

if [ -f /etc/sysconfig/net/${DEV}.dhcp ]; then
  #ok this is the dynamic part for setup ${DEV}
  #first we have to startup interface to check interface type
  ifconfig ${DEV} up
  #Let check in /sys if the interface is a wireless interface
  if [ -d /sys/class/net/${DEV}/wireless ]; then
	#wireless interface need special setup..
  	/sbin/wlan_setup ${DEV}
	#give wlan time to startup and create a link
	sleep 1
  fi
  #let check if there is a link on the interface.
  #only if there is a link, we will setup the interface..
  if CheckForLink ${DEV}; then
  	echo -n "Setting up ${DEV} with dhcp"
  	dhclient -q ${DEV}
  	evaluate_retval
  else
	ifconfig ${DEV} down
  fi
elif ls /etc/sysconfig/net/hostname.${DEV}* &>/dev/null; then
  ifconfig ${DEV} up
  if [ -d /sys/class/net/${DEV}/wireless ]; then
  	/sbin/wlan_setup ${DEV}
	#give wlan time to startup and create a link
	sleep 1
  fi
  if CheckForLink ${DEV}; then
  	for NETDEV in `ls /etc/sysconfig/net/hostname.${DEV}*|awk -F "." '{print $2}'`; do
    		HOST=`cat /etc/sysconfig/net/hostname.${NETDEV}|awk '{print $1}'`
    		IP=`grep $HOST /etc/hosts|awk '{print $1}'`
    		NETMASK=`getmask $IP`
    		SHMASK=`GetShortMask $NETMASK`
    		echo -n "setting up interface $NETDEV:IP=$IP NMASK=$NETMASK"
    		if [ "$NETMASK" = "" ]; then
      			DEV=`echo $NETDEV|cut -d ":" -f 1`
      			$DEBUG ip addr add $IP broadcast + dev $DEV
      			$DEBUG ip link set $DEV up
    		else
      			DEV=`echo $NETDEV|cut -d ":" -f 1`
      			$DEBUG ip addr add $IP/$SHMASK broadcast + dev $DEV
      			$DEBUG ip link set $DEV up
    		fi
  	done
  else
	ifconfig ${DEV} down
  fi
fi