#!/bin/sh
minixcatd.awk &
PUBKEY=`openssl rsa -in /etc/xcat/privkey.pem -pubout|grep -v "PUBLIC KEY"`
PUBKEY=`echo $PUBKEY|sed -e 's/ //g'`
export PUBKEY

echo "Beginning node discovery process"
NICSTOBRINGUP=`ip link|grep mtu|grep -v LOOPBACK|grep -v usb|grep -v ,UP|awk -F: '{print $2}'`
for nic in $NICSTOBRINGUP; do
	dhclient -cf /etc/dhclient.conf -pf /var/run/dhclient.$nic.pid $nic &
	#no need to go out of our way for superfluous ipv6 nics
done
waitforlink=100
while [ ! -z "$NICSTOBRINGUP" -a $waitforlink -gt 0 ]; do
	NICSTOBRINGUP=`ip link|grep mtu|grep -v LOOPBACK|grep -v usb|grep -v ,LOWER_UP|awk -F: '{print $2}'`
	waitforlink=$((waitforlink - 1))
	sleep 0.1
	if [ $waitforlink = 1 ]; then
		echo "No link detected on $NICSTOBRINGUP"
	fi
done
NICSGETTINGADDR=`ip link|grep mtu|grep -v LOOPBACK|grep -v usb|grep ,LOWER_UP|awk -F: '{print $2}'`
timewaiting=0
echo "Waiting for nics to get addresses"
while [ ! -z "$NICSGETTINGADDR" -a $timewaiting != 700 ]; do
	NEWNICSGETTINGADDR=""
	for nic in $NICSGETTINGADDR; do
		if ! ip addr show dev $nic |grep -v inet6|grep inet >/dev/null;  then
			NEWNICSGETTINGADDR="$NEWNICSGETTINGADDR $nic"
		else
			echo -n "$nic|"
			ip addr show dev $nic |grep -v inet6|grep inet|sed -e s/\\/.*//|awk '{print $2}'
		fi
	done
	sleep 0.1
	timewaiting=$((timewaiting+1))
	if [ $timewaiting = 450 ]; then
		echo "45 seconds without an address on $nic, is spanning tree set to slow?"
	fi
	if [ $timewaiting = 699 ]; then
		echo "No DHCP answer for $nic, ignoring interface"
	fi
	NICSGETTINGADDR=$NEWNICSGETTINGADDR
done
echo "Stopped waiting on nics to get addresses"
XCATPORT=3001
export XCATPORT
for parm in `cat /proc/cmdline`; do
	key=`echo $parm|awk -F= '{print $1}'`
	if [ "$key" = "xcatd" ]; then
		XCATMASTER=`echo $parm|awk -F= '{print $2}'|awk -F: '{print $1}'`
		XCATPORT=`echo $parm|awk -F= '{print $2}'|awk -F: '{print $2}'`
	fi
done
	
	
#time to make our packet...
MTM=unknown
SERIAL=unknown
ARCH=unknown
ARCH=`uname -m` #32-bit only is old news
if [ -r /sys/devices/virtual/dmi/id/product_name ]; then  #x86
	PRODNAME=`cat /sys/devices/virtual/dmi/id/product_name`
	IAMAVM=0
	if [ "$PRODNAME" = "KVM" ]; then 
		IAMAVM=1
		MTM=KVM
	elif [ "$PRODNAME" = "VMware Virtual Platform" ]; then
		IAMAVM=1
		MTM=VMware
	else 
		MTM=`cat /sys/devices/virtual/dmi/id/product_name|awk -F'[' '{print $2}'|awk -F']' '{print $1}'`
	fi
elif [ -r /proc/device-tree/model ]; then #POWER
	MTM=`cat /proc/device-tree/model |awk -F, '{print $2}'`
fi
CPUCOUNT=`cat /proc/cpuinfo |grep "model name"|wc -l`
MEMORY=`cat /proc/meminfo |grep MemTotal|awk '{print $2}'`
grep "model name" /proc/cpuinfo | while read line; do #to avoid pulling in tail, we do a goofy thing
	echo $line > /tmp/cpumod
done
CPUTYPE=`cat /tmp/cpumod|awk -F':' '{print $2}'|sed -e 's/^ //'`
echo '<xcatrequest>' > /tmp/discopacket
echo "<command>findme</command>" >> /tmp/discopacket
echo "<arch>$ARCH</arch>" >> /tmp/discopacket
if [ "$IAMAVM"=1 ]; then
	echo "<nodetype>virtual</nodetype>" >> /tmp/discopacket
fi
echo "<cpucount>$CPUCOUNT</cpucount>" >> /tmp/discopacket
echo "<cputype>$CPUTYPE</cputype>" >> /tmp/discopacket
echo "<memory>$MEMORY</memory>" >> /tmp/discopacket
if [ "$MTM" != "unknown" ]; then
	echo "<mtm>$MTM</mtm>" >> /tmp/discopacket
fi
if [ "$SERIAL" != "unknown" ]; then
	echo "<serial>$SERIAL</serial>"
fi
for dev in `ip link|grep -B1 ether|grep UP|awk '{print $2}'|sed -e s/://`; do
	DRIVER=`grep DRIVER /sys/class/net/$dev/device/uevent|awk -F= '{print $2}'`
	ADDRESS=`ip address show dev $dev|grep "inet "|grep global|awk '{print $2}'`
	MAC=`ip link show dev $dev|grep ether|awk '{print $2}'`
	echo "<mac>$DRIVER|$dev|$MAC|$ADDRESS</mac>" >> /tmp/discopacket
done
echo "<xcatpubkey>$PUBKEY</xcatpubkey>" >> /tmp/discopacket #this is not secure to use by itself, switch sourced pubkey for security
echo "<sha512sig>" >> /tmp/discopacket
echo "</sha512sig>" >> /tmp/discopacket
echo "</xcatrequest>" >> /tmp/discopacket
openssl dgst -sha512 -out /tmp/discopacket.sha512 -sign /etc/xcat/privkey.pem /tmp/discopacket
openssl enc -e -a -in /tmp/discopacket.sha512  > /tmp/discopacket.b64sig
cat /tmp/discopacket |while read line; do
	if [ "$line" = "</sha512sig>" ]; then
		cat /tmp/discopacket.b64sig >> /tmp/discopacket.new
	fi
	echo $line >> /tmp/discopacket.new
done
mv /tmp/discopacket.new /tmp/discopacket


while [ ! -r /restart ]; do
	if [ ! -z "$XCATMASTER" ]; then
		(cat /tmp/discopacket | udpcat.awk $XCATMASTER $XCATPORT ) &
	fi
	for dhcps in `grep dhcp-server /var/lib/dhclient/dhclient.leases|awk '{print $4}'|sed -s 's/;//'`; do
		(cat /tmp/discopacket | udpcat.awk $dhcps $XCATPORT ) &
	done
	#cat /tmp/discopacket
	sleep 5
done
/bin/restart