oneip

#!/bin/bash

ARG_IP=""
ARG_NET=""
NET_IDS=$(onevnet list | grep -v ID | awk '{print $1}')

if [ $1 == "-c" ] || [ $1 == "--check" ]
then
	if [[ $2 =~ ^[0-9]+\.[0-9]+\.[0-9]+\.[0-9]+$ ]]
	then
		ARG_IP=$2
	else
		echo "#############################################"
		echo "  This ($2) is not valid IP format"
		echo "#############################################" 	
		exit
	fi
fi
if [ $1 == "-g" ] || [ $1 == "--get" ]
then
	NET_EXISTS=false
	ARG_NET="$2"
	for i in "${NET_IDS[@]}"
	do
		if [[ $i == $ARG_NET ]] 
		then
			NET_EXISTS=true
		fi
	done
	if [[ $NET_EXISTS == "true" ]]
	then
		echo "#############################################"
		echo "  Net with this IP ($2) does not exists"
		echo "#############################################" 	
		exit
	fi
fi



ALL_IPS=""
for NETS in $NET_IDS
do
	NET_RANGES=$(onevnet show $NETS | grep "^IP" | awk '{print $2 "-" $3}')
	for RANGE in $NET_RANGES
	do
			RANGE_FIRST=$(echo $RANGE | awk -F \- '{print $1}')
			RANGE_LAST=$(echo $RANGE | awk -F \- '{print $2}')
			WILD_CARD=$(echo $RANGE_FIRST | awk -F \. '{print $1"."$2"."$3".%g" }')
			RANGE_START=$(echo $RANGE_FIRST | awk -F \. '{print $4}')
			RANGE_LAST=$(echo $RANGE_LAST | awk -F \. '{print $4}')
			SUBNET_IPS=$(seq -f "$WILD_CARD" $RANGE_START $RANGE_LAST)
			ALL_IPS="$ALL_IPS $SUBNET_IPS"
	done
done

case $1 in

	"-c" | "--check")
		IP_PINGED=false
		IP_RESERVED=false
		IP_USED=false
		IP_IS_IN_SUBNET_BUT_NOT_USED=false
		for NET in $NET_IDS
		do
			IP_IN_SUBNET=$(onevnet show $NET|grep -i " $2 ")
			if [ -z "$IP_IN_SUBNET" ]
			then
				if ping -c1 -w2 $2 >/dev/null 2>&1
				then
					IP_PINGED=true
				fi
			else
				if [[ ! -z "$IP_IN_SUBNET" ]]
				then
					VM_ID=$(echo $IP_IN_SUBNET | awk '{print $2}' | awk -F\: '{print $2}')
				fi
				if [ "$VM_ID" == "-1" ]
				then
					IP_RESERVED=true
					echo "#############################################"
					echo "  This IP is reserved"
					echo "#############################################"
				else
					IP_USED=true
					VM_NAME=$(onevm show $VM_ID | grep ^NAME | awk '{print $3}')
					VM_HOST=$(onevm show $VM_ID | grep ^HOST | awk '{print $3}')
					echo "#############################################"
					echo "  This IP is on VM"
					echo "  VM   : $VM_NAME"
					echo "  Host : $VM_HOST"
					echo "#############################################"
				fi
			fi
		done
		if [ "$IP_PINGED" == "true" ] && [ "$IP_RESERVED" == "false" ] && [ "$IP_USED" == "false" ]
		then
        	        echo "#############################################"
        	        echo "  This IP is not used by opennebula but it is pingable"
        	        echo "#############################################"
		fi
		if [ "$IP_PINGED" == "false" ] && [ "$IP_RESERVED" == "false" ] && [ "$IP_USED" == "false" ]
                then
                        echo "#############################################"
                        echo "  IP is FREE"
                        echo "#############################################"
                fi

	;;

	"-g" | "--give")
		USED_IPS=$(onevnet show $NET_ID | grep -Eo '[0-9]+[.][0-9]+[.][0-9]+[.][0-9]+')
		FOUND_IP=false	
		for IP in $SUBNET_IPS
		do
			for used_ip in $USED_IPS
			do
				if [ $IP == $used_ip ]
				then
					FOUND_IP=true
					break
				else
					FOUND_IP=false
					continue
				fi
			done
			if [ $FOUND_IP == "false" ]
			then
				if ping -c1 -w3 $IP >/dev/null 2>&1
				then
					continue
				else
					echo $IP is free
					exit
				fi
			fi
		done
	;;

	*)
		echo 
		echo "oneip --check 172.16.77.134"
		echo "oneip -c 172.16.77.134"
		echo "oneip --get [NET_ID]"
		echo "oneip -g [NET_ID]"
	;;
esac