managementnode/tools/xcat_postscripts/eths4dhcp

#!/bin/ksh
#egan@us.ibm.com
#(C)IBM Corp
#

if [ -z "$XCATROOT" ]
then
	if [ -r /etc/sysconfig/xcat ]
	then
		. /etc/sysconfig/xcat
	else
		if [ -r /etc/rc.config ]
		then
			. /etc/rc.config
		fi
	fi
fi

if [ -z "$XCATROOT" ]
then
	if [ -r "$(dirname $0)/../lib/xcatroot" ]
	then
		. $(dirname $0)/../lib/xcatroot
	fi
fi

if [ -z "$XCATROOT" ]
then
	echo "$(basename $0): env XCATROOT not defined!" >&2
	exit 1
fi

if [ ! -d "$XCATROOT" ]
then
	echo "$(basename $0): XCATROOT $XCATROOT does not exist!" >&2
	exit 1
fi

. $XCATROOT/lib/functions

function setupnic {
	NIC=$1
	ETHNIC=eth$1
	RESNAME=$(whatismyres2 $NODE)
	PRINIC=$(tabdb $NODERESTAB $RESNAME $noderes_prinic)

	if IP=$(
		host $NODE-eth$NIC | \
		head -1 | \
		awk '{ if (/has address/) {print $NF} else exit 1}'
		)
	then
		:
	else
		if IP=$(
			host $NODE | \
			head -1 | \
			awk '{ if (/has address/) {print $NF} else exit 1}'
			)
		then
			if [ "$ETHNIC" != "$PRINIC" ]
			then
				IP=""
			fi
		else
			IP=""
		fi
	fi

	if [ -n "$IP" ]
	then
		NM=$(whatsmynet $IP | awk '{print $2}')

		GW=""
		if GW=$(whatsmynet $IP | awk '{print $3}')
		then
			if [ "$GW" = "NA" ]
			then
				GW=""
			fi
		else
			GW=""
		fi
	fi

	if [ -n "$IP" -a -n "$NM" ]
	then
		NW=$(ipcalc.ksh --network $IP $NM | awk -F= '{print $2}')
		BC=$(ipcalc.ksh --broadcast $IP $NM | awk -F= '{print $2}')
	fi

	if [ "$PRINIC" = "eth$NIC" ]
	then
		GATEWAY=$GW
	fi

	case $OSVER in
		sles[89]|suse8*|suse9*|suse10|ul*)
			if [ -n "$GATEWAY" ]
			then
				echo "default $GATEWAY - $PRINIC" >/etc/sysconfig/network/routes
			fi
			cd /etc/sysconfig/network
			perl -pi -e 's/^FIREWALL="yes"/FIREWALL="no"/' /etc/sysconfig/network/config
			;;
		rh*)
			if [ -n "$GATEWAY" ]
			then
				perl -pi -e 's/^GATEWAYDEV=.*\n//' /etc/sysconfig/network
				perl -pi -e 's/^GATEWAY=.*\n//' /etc/sysconfig/network
#				echo "GATEWAYDEV=$PRINIC" >>/etc/sysconfig/network
#				echo "GATEWAY=$GATEWAY" >>/etc/sysconfig/network
			fi
			cd /etc/sysconfig/network-scripts
			;;
	esac

	if [ -r ifcfg-eth$NIC ]
	then
		cp ifcfg-eth$NIC ../ifcfg-eth$NIC.ORIG
	fi
	>ifcfg-eth$NIC

	if [ -n "$IP" -a -n "$NM" ]
	then
		echo "DEVICE=eth$NIC" >>ifcfg-eth$NIC
		echo "BOOTPROTO=dhcp" >>ifcfg-eth$NIC
		echo "STARTMODE=onboot" >>ifcfg-eth$NIC
		echo "ONBOOT=yes" >>ifcfg-eth$NIC
		echo "USERCTL=no" >>ifcfg-eth$NIC
#		echo "IPADDR=$IP" >>ifcfg-eth$NIC
#		echo "BROADCAST=$BC" >>ifcfg-eth$NIC
#		echo "NETMASK=$NM" >>ifcfg-eth$NIC
	else
		echo "DEVICE=eth$NIC" >>ifcfg-eth$NIC
		echo "BOOTPROTO=dhcp" >>ifcfg-eth$NIC
		echo "STARTMODE=onboot" >>ifcfg-eth$NIC
		echo "ONBOOT=yes" >>ifcfg-eth$NIC
	fi
}

mv -f /etc/hosts /etc/hosts.hardeths

nic=0
PCITABLE=$XCATROOT/install/postscripts/data/pcitable.net

MOD=""
for i in $(lspci -n | sed 's/Class//' | perl -pi -e 's/^\d{4}://' | awk '{print $1 ":" $3}')
do
	PCI=$(echo $i | awk -F: '{print $1 ":" $2}')
	VID="0x$(echo $i | awk -F: '{print $3}')"
	DID="0x$(echo $i | awk -F: '{print $4}')"
	if egrep "^$VID	$DID" $PCITABLE >/dev/null
	then
		TYPE=$(
			lspci | \
			perl -pi -e 's/^\d{4}://' | \
			grep "^$PCI " | \
			awk '{print $2}' | \
			tr '[A-Z]' '[a-z]'
		)
		DESC=$(
			lspci | \
			perl -pi -e 's/^\d{4}://' | \
			grep "^$PCI " | \
			awk -F: '{print $3}' | \
			sed 's/^ *//'
		)
		MOD=$(
			egrep "^$VID	$DID" $PCITABLE | \
			head -1 | \
			awk '{print $3}' | \
			tr -d '"'
		)
		case "$TYPE" in
			ethernet|network)
				echo "Found ($MOD) $DESC"
				if egrep "^alias eth$nic $MOD\b" /etc/modules.conf >/dev/null 2>&1
				then
					:
				else
					echo "#added by xCAT hardeths" >>/etc/modules.conf
					echo "alias eth$nic $MOD" >>/etc/modules.conf
				fi
				if egrep "^alias eth$nic $MOD\b" /etc/modprobe.conf >/dev/null 2>&1
				then
					:
				else
					echo "#added by xCAT hardeths" >>/etc/modprobe.conf
					echo "alias eth$nic $MOD" >>/etc/modprobe.conf
				fi
				;;
			*)
				continue
				;;
		esac

		logger -t xcat "Install: found eth$nic as $MOD"
		setupnic $nic
		nic=$(($nic + 1))
	fi
done

mv -f /etc/hosts.hardeths /etc/hosts

exit 0