#!/bin/bash

# Copyright 2017-present Open Networking Foundation
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

#Below are the list of ports which are required to be free, for the SEBA services to use. If any new services get added into SEBA, Update the required node ports below and also add it to the arrray portlist.

#Service name :  node Port number
#onos-debugger: 30555
#onos-openflow: 31653
#onos-ssh: 30115
#onos-ui: 30120
#xos-chameleon: 30006
#xos-core: 30010, 30011
#xos-core-prometheus: 30009
#xos-gui: 30001
#xos-tosca: 30007
#xos-ws: 30008
#ingress-nginx: 30080, 30443
#vcli: 30110
#voltha: 30125, 30613, 32443, 31390
#kpi-exporter: 31080
#logging-elasticsearch-client: 31636
#logging-kibana: 30601
#nem-monitoring-grafana: 31300
#nem-monitoring-prometheus-server: 31301

declare -a portlist=("30555" "31653" "30115" "30120" "30006" "30010" "30011" "30009" "30001" "30007" "30008" "30080" "30443" "30110" "30125" "30613" "32443" "31390" "31080" "31636" "30601" "31300" "31301")

number_of_ports_in_use=0

#Below loop is to check whether any port in the list is already being used
for port in "${portlist[@]}"
do
        if netstat -lntp | grep :":$port" > /dev/null ; then
                used_process=$(netstat -lntp | grep :":$port" | tr -s ' ' | cut -f7 -d' ')
                echo "ERROR: Process with PID/Program_name $used_process is already listening on port: $port needed by SEBA"
                number_of_ports_in_use=$((number_of_ports_in_use+1))
        fi
done

#If any of the ports are already used then the user will be notified to kill the running services before installing SEBA
if [ $number_of_ports_in_use -gt 0 ]
    then
        echo "Kill the running services mentioned above before proceeding to install SEBA"
        echo "Terminating make"
        exit 1
fi

#The ports that are required by SEBA components will be added to the reserved port list
var=$(printf '%s,' "${portlist[@]}")
echo "$var" > /proc/sys/net/ipv4/ip_local_reserved_ports
echo "SUCCESS: Added ports required for SEBA services to ip_local_reserved_ports"