From a4ac7ea749f61719299cc9d8f254214bed9b1db1 Mon Sep 17 00:00:00 2001
From: nguyennd <nguyennd@eurecom.fr>
Date: Tue, 4 Mar 2014 09:41:27 +0000
Subject: [PATCH] For e MBMS

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5115 818b1a75-f10b-46b9-bf7c-635c3b92a50f
---
 targets/PROJECTS/E-MBMS/build_all.bash |  67 +++++
 targets/PROJECTS/E-MBMS/enb.conf       |  44 ++++
 targets/PROJECTS/E-MBMS/start_enb.bash | 109 ++++++++
 targets/PROJECTS/E-MBMS/start_ue.bash  |  81 ++++++
 targets/PROJECTS/E-MBMS/utils.bash     | 345 +++++++++++++++++++++++++
 5 files changed, 646 insertions(+)
 create mode 100755 targets/PROJECTS/E-MBMS/build_all.bash
 create mode 100755 targets/PROJECTS/E-MBMS/enb.conf
 create mode 100755 targets/PROJECTS/E-MBMS/start_enb.bash
 create mode 100755 targets/PROJECTS/E-MBMS/start_ue.bash
 create mode 100755 targets/PROJECTS/E-MBMS/utils.bash

diff --git a/targets/PROJECTS/E-MBMS/build_all.bash b/targets/PROJECTS/E-MBMS/build_all.bash
new file mode 100755
index 0000000000..46e284f526
--- /dev/null
+++ b/targets/PROJECTS/E-MBMS/build_all.bash
@@ -0,0 +1,67 @@
+#! /bin/bash
+# Author Lionel GAUTHIER
+
+###########################################################
+THIS_SCRIPT_PATH=$(dirname $(readlink -f $0))
+###########################################################
+
+echo_success "\n###############################"
+echo_success "# Check installed utils and libs"
+echo_success "###############################"
+test_command_install_package "gccxml" "gccxml" "--force-yes"
+test_command_install_package "iptables" "iptables"
+#test_command_install_package "ebtables" "ebtables" "--force-yes"
+test_command_install_package "ip" "iproute"
+test_install_package "openssl"
+test_install_package "libblas-dev"
+# for itti analyser
+test_install_package "libgtk-3-dev"
+test_install_package "libxml2"
+test_install_package "libxml2-dev"
+test_install_package "libforms-bin" "--force-yes"
+test_install_package "libforms-dev"
+test_install_package "libatlas-dev"
+test_install_package "libatlas-base-dev"
+test_install_package "libpgm-5.1-0" "--force-yes"
+test_install_package "libpgm-dev"   "--force-yes"
+test_install_package linux-headers-`uname -r`
+test_install_package "tshark"       "--force-yes"
+# for ODTONE git clone
+test_install_package "git"
+
+test_install_asn1c_4_rrc_cellular
+
+
+echo_success "\n###############################"
+echo_success "# COMPILE oaisim"
+echo_success "###############################"
+cd $OPENAIR_TARGETS/SIMU/USER
+echo_success "Executing: make oaisim NAS=1 OAI_NW_DRIVER_TYPE_ETHERNET=1 ENABLE_ITTI=1 USER_MODE=1 OPENAIR2=1  Rel10=1 -j`grep -c ^processor /proc/cpuinfo `"
+make oaisim NAS=1 OAI_NW_DRIVER_TYPE_ETHERNET=1 ENABLE_ITTI=1 USER_MODE=1 OPENAIR2=1  Rel10=1 -j`grep -c ^processor /proc/cpuinfo `
+if [[ $? -eq 2 ]] ; then
+    exit 1
+fi
+
+echo_success "\n###############################"
+echo_success "# COMPILE IP kernel drivers"
+echo_success "###############################"
+echo_success "Compiling IP Drivers"
+cd $OPENAIR2_DIR
+make naslite_netlink_ether.ko
+cd $OPENAIR2_DIR/NAS/DRIVER/LITE/RB_TOOL/
+make
+
+
+echo_success "\n###############################"
+echo_success "# COMPILE ITTI ANALYSER"
+echo_success "###############################"
+#cd  $OPENAIR_HOME/common/utils/itti_analyzer
+#if [ ! -f $OPENAIR_HOME/common/utils/itti_analyzer/Makefile ]
+#    then
+#        ./autogen.sh
+#        ./configure
+#    fi
+#make install
+
+
+
diff --git a/targets/PROJECTS/E-MBMS/enb.conf b/targets/PROJECTS/E-MBMS/enb.conf
new file mode 100755
index 0000000000..852f7bbf5f
--- /dev/null
+++ b/targets/PROJECTS/E-MBMS/enb.conf
@@ -0,0 +1,44 @@
+Active_eNBs = ( "eNB_Eurecom_0");
+
+eNBs =
+(
+ {
+    ////////// Identification parameters:
+    eNB_ID    =  347472;
+    
+    cell_type =  "CELL_MACRO_ENB";
+    
+    eNB_name  =  "eNB_Eurecom_0";
+    
+    // Tracking area code, 0x0000 and 0xfffe are reserved values
+    tracking_area_code  =  1;
+    
+    mobile_country_code =  208;
+    
+    mobile_network_code =  10;
+    
+    ////////// Channel parameters:
+    // Default Paging DRX of the eNB as defined in TS 36.304
+    default_paging_drx  =  "PAGING_DRX_256";
+    
+    ////////// Physical parameters:
+    frame_type              = "TDD";
+    prefix_type             = "NORMAL";
+    eutra_band              = 33;
+    downlink_frequency      = 1907.6e6;
+    uplink_frequency_offset = 0.0;
+    
+    ////////// MME parameters:
+    mme_ip_address      = ( { ipv4       = "192.168.12.31";
+                              ipv6       = "2192:168:30::17";
+                              active     = "yes";
+                              preference = "ipv4";
+                            },
+                            { ipv4       = "192.168.12.86";
+                              ipv6       = "2192:168:30::18";
+                              active     = "yes";
+                              preference = "ipv4";
+                            }
+                          );
+  }
+);
diff --git a/targets/PROJECTS/E-MBMS/start_enb.bash b/targets/PROJECTS/E-MBMS/start_enb.bash
new file mode 100755
index 0000000000..48015f71fc
--- /dev/null
+++ b/targets/PROJECTS/E-MBMS/start_enb.bash
@@ -0,0 +1,109 @@
+#!/bin/bash
+# Author Lionel GAUTHIER
+
+# OAI NETWORKING--------------------------------
+declare -x EMULATION_DEV_INTERFACE="eth0"
+declare -x IP_DRIVER_NAME="oai_nw_drv"
+declare -x LTEIF="oai0"
+declare -x ENB_IPv4="10.0.1.1"
+declare -x ENB_IPv6="9998::1"
+declare -x ENB_IPv6_CIDR=$ENB_IPv6"/64"
+declare -x ENB_IPv4_CIDR=$ENB_IPv4"/24"
+declare -a NAS_IMEI=( 3 9 1 8 3 6 6 2 0 0 0 0 0 0 )
+#------------------------------------------------
+LOG_FILE="/tmp/oai_sim_enb.log"
+
+
+###########################################################
+IPTABLES=/sbin/iptables
+declare -x OPENAIR_DIR=""
+declare -x OPENAIR1_DIR=""
+declare -x OPENAIR2_DIR=""
+declare -x OPENAIR3_DIR=""
+declare -x OPENAIR_TARGETS=""
+#######################################
+#######################################
+
+###########################################################
+THIS_SCRIPT_PATH=$(dirname $(readlink -f $0))
+source $THIS_SCRIPT_PATH/utils.bash
+###########################################################
+
+set_openair
+cecho "OPENAIR_DIR     = $OPENAIR_DIR" $green
+cecho "OPENAIR1_DIR    = $OPENAIR1_DIR" $green
+cecho "OPENAIR2_DIR    = $OPENAIR2_DIR" $green
+cecho "OPENAIR3_DIR    = $OPENAIR3_DIR" $green
+cecho "OPENAIR_TARGETS = $OPENAIR_TARGETS" $green
+
+bash_exec "/sbin/iptables  -t mangle -F"
+bash_exec "/sbin/iptables  -t nat -F"
+bash_exec "/sbin/iptables  -t raw -F"
+bash_exec "/sbin/iptables  -t filter -F"
+bash_exec "/sbin/ip6tables -t mangle -F"
+bash_exec "/sbin/ip6tables -t filter -F"
+bash_exec "/sbin/ip6tables -t raw -F"
+
+##################################################
+# LAUNCH eNB  executable
+##################################################
+source $THIS_SCRIPT_PATH/build_all.bash
+
+echo "Bringup eNB interface"
+pkill oaisim             > /dev/null 2>&1
+pkill oaisim             > /dev/null 2>&1
+rmmod -f $IP_DRIVER_NAME > /dev/null 2>&1
+
+bash_exec "insmod  $OPENAIR2_DIR/NAS/DRIVER/LITE/$IP_DRIVER_NAME.ko oai_nw_drv_IMEI=${NAS_IMEI[0]},${NAS_IMEI[1]},${NAS_IMEI[2]},${NAS_IMEI[3]},${NAS_IMEI[4]},${NAS_IMEI[5]},${NAS_IMEI[6]},${NAS_IMEI[7]},${NAS_IMEI[8]},${NAS_IMEI[9]},${NAS_IMEI[10]},${NAS_IMEI[11]},${NAS_IMEI[12]},${NAS_IMEI[13]}"
+bash_exec "ip route flush cache"
+bash_exec "ip link set $LTEIF up"
+sleep 1
+bash_exec "ip addr add dev $LTEIF $ENB_IPv4_CIDR"
+bash_exec "ip addr add dev $LTEIF $ENB_IPv6_CIDR"
+sleep 1
+bash_exec "sysctl -w net.ipv4.conf.all.log_martians=1"
+assert "  `sysctl -n net.ipv4.conf.all.log_martians` -eq 1" $LINENO
+bash_exec "sysctl -w net.ipv4.conf.all.rp_filter=0"
+assert "  `sysctl -n net.ipv4.conf.all.rp_filter` -eq 0" $LINENO
+bash_exec "ip route flush cache"
+
+# please add table 200 lte in /etc/iproute2/rt_tables
+fgrep lte /etc/iproute2/rt_tables > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo "200 lte " >> /etc/iproute2/rt_tables
+fi
+ip rule add fwmark 3  table lte
+ip route add default dev $LTEIF table lte
+ip route add 239.0.0.160/28 dev $EMULATION_DEV_INTERFACE
+
+/sbin/ebtables -t nat -A POSTROUTING -p arp  -j mark --mark-set 3
+
+/sbin/ip6tables -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark 3
+/sbin/iptables  -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type broadcast -j MARK --set-mark 3
+/sbin/iptables  -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark 3
+
+/sbin/ip6tables -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark 3
+/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type broadcast -j MARK --set-mark 3
+/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark 3
+
+#All other traffic is sent on the RAB you want (mark = RAB ID)
+/sbin/ip6tables -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark 3
+/sbin/ip6tables -A OUTPUT      -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark 3
+/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark 3
+/sbin/iptables  -A OUTPUT      -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark 3
+
+NOW=$(date +"%Y-%m-%d.%Hh_%Mm_%Ss")
+rotate_log_file $LOG_FILE
+
+#xterm -hold -e gdb --args
+#$OPENAIR_TARGETS/SIMU/USER/oaisim -a  -Q3 -s15 -K $LOG_FILE -l9 -u0 -b1 -M0 -p2  -g1 -D $EMULATION_DEV_INTERFACE -O $THIS_SCRIPT_PATH/enb.conf &
+#$OPENAIR_TARGETS/SIMU/USER/oaisim -a -l3 -u0 -b1 -M0 -p2  -g1 -D $EMULATION_DEV_INTERFACE -O $THIS_SCRIPT_PATH/enb.conf &
+$OPENAIR_TARGETS/SIMU/USER/oaisim -a -l3 -u0 -b1 -M0 -p2  -g1 -D 192.168.55.51 -O $THIS_SCRIPT_PATH/enb.conf &
+
+
+wait_process_started oaisim
+
+
+sleep 100000
+
+
diff --git a/targets/PROJECTS/E-MBMS/start_ue.bash b/targets/PROJECTS/E-MBMS/start_ue.bash
new file mode 100755
index 0000000000..7be0726224
--- /dev/null
+++ b/targets/PROJECTS/E-MBMS/start_ue.bash
@@ -0,0 +1,81 @@
+#!/bin/bash
+# Author Lionel GAUTHIER
+
+# OAI NETWORKING--------------------------------
+declare -x EMULATION_DEV_INTERFACE="eth4"
+declare -x IP_DRIVER_NAME="oai_nw_drv"
+declare -x LTEIF="oai0"
+declare -x UE_IPv4="10.0.0.11"
+declare -x UE_IPv6="9998::11"
+declare -x UE_IPv6_CIDR=$UE_IPv6"/64"
+declare -x UE_IPv4_CIDR=$UE_IPv4"/24"
+declare -a NAS_IMEI=( 3 9 1 8 3 6 7 3 0 2 0 0 0 0 )
+#------------------------------------------------
+LOG_FILE="/tmp/oai_sim_ue.log"
+
+###########################################################
+IPTABLES=/sbin/iptables
+THIS_SCRIPT_PATH=$(dirname $(readlink -f $0))
+declare -x OPENAIR_DIR=""
+declare -x OPENAIR1_DIR=""
+declare -x OPENAIR2_DIR=""
+declare -x OPENAIR3_DIR=""
+declare -x OPENAIR_TARGETS=""
+###########################################################
+
+###########################################################
+source $THIS_SCRIPT_PATH/utils.bash
+source $THIS_SCRIPT_PATH/build_all.bash
+###########################################################
+
+
+##################################################
+# LAUNCH UE
+##################################################
+
+echo "Bringup UE interface"
+pkill oaisim             > /dev/null 2>&1
+pkill oaisim             > /dev/null 2>&1
+rmmod -f $IP_DRIVER_NAME > /dev/null 2>&1
+
+bash_exec "insmod  $OPENAIR2_DIR/NAS/DRIVER/LITE/$IP_DRIVER_NAME.ko oai_nw_drv_IMEI=${NAS_IMEI[0]},${NAS_IMEI[1]},${NAS_IMEI[2]},${NAS_IMEI[3]},${NAS_IMEI[4]},${NAS_IMEI[5]},${NAS_IMEI[6]},${NAS_IMEI[7]},${NAS_IMEI[8]},${NAS_IMEI[9]},${NAS_IMEI[10]},${NAS_IMEI[11]},${NAS_IMEI[12]},${NAS_IMEI[13]}"
+bash_exec "ip route flush cache"
+bash_exec "ip link set $LTEIF up"
+sleep 1
+bash_exec "ip addr add dev $LTEIF $UE_IPv4_CIDR"
+bash_exec "ip addr add dev $LTEIF $UE_IPv6_CIDR"
+sleep 1
+bash_exec "sysctl -w net.ipv4.conf.all.log_martians=1"
+assert "  `sysctl -n net.ipv4.conf.all.log_martians` -eq 1" $LINENO
+bash_exec "sysctl -w net.ipv4.conf.all.rp_filter=0"
+assert "  `sysctl -n net.ipv4.conf.all.rp_filter` -eq 0" $LINENO
+bash_exec "ip route flush cache"
+
+# please add table 200 lte in file /etc/iproute2/rt_tables
+fgrep lte /etc/iproute2/rt_tables > /dev/null 2>&1
+if [ $? -ne 0 ]; then
+    echo "200 lte " >> /etc/iproute2/rt_tables
+fi
+ip rule add fwmark 5  table lte
+ip -4 route add default dev $LTEIF table lte
+ip -6 route add default dev $LTEIF table lte
+ip route add 239.0.0.160/28 dev $EMULATION_DEV_INTERFACE
+
+NOW=$(date +"%Y-%m-%d.%Hh_%Mm_%Ss")
+rotate_log_file $LOG_FILE
+
+
+#xterm -hold -e gdb --args 
+$OPENAIR_TARGETS/SIMU/USER/oaisim -a  -Q3 -s15 -K $LOG_FILE -l9 -u1 -b0 -M1 -p2 -g1 -D $EMULATION_DEV_INTERFACE  
+             
+wait_process_started oaisim
+
+
+# start MIH-USER
+
+
+sleep 100000
+
+
+
+
diff --git a/targets/PROJECTS/E-MBMS/utils.bash b/targets/PROJECTS/E-MBMS/utils.bash
new file mode 100755
index 0000000000..d599c65369
--- /dev/null
+++ b/targets/PROJECTS/E-MBMS/utils.bash
@@ -0,0 +1,345 @@
+#!/bin/bash
+
+
+cidr2mask() {
+  local i mask=""
+  local full_octets=$(($1/8))
+  local partial_octet=$(($1%8))
+
+  for ((i=0;i<4;i+=1)); do
+    if [ $i -lt $full_octets ]; then
+      mask+=255
+    elif [ $i -eq $full_octets ]; then
+      mask+=$((256 - 2**(8-$partial_octet)))
+    else
+      mask+=0
+    fi
+    test $i -lt 3 && mask+=.
+  done
+
+  echo $mask
+}
+
+
+black='\E[30m'
+red='\E[31m'
+green='\E[32m'
+yellow='\E[33m'
+blue='\E[34m'
+magenta='\E[35m'
+cyan='\E[36m'
+white='\E[37m'
+reset_color='\E[00m'
+
+ROOT_UID=0
+E_NOTROOT=67
+
+HOSTNAME=$(hostname -f)
+
+trim ()
+{
+    echo "$1" | sed -n '1h;1!H;${;g;s/^[ \t]*//g;s/[ \t]*$//g;p;}'
+}
+
+trim2()
+{
+    local var=$@
+    var="${var#"${var%%[![:space:]]*}"}"   # remove leading whitespace characters
+    var="${var%"${var##*[![:space:]]}"}"   # remove trailing whitespace characters
+    echo -n "$var"
+}
+
+cecho()   # Color-echo
+# arg1 = message
+# arg2 = color
+{
+    local default_msg="No Message."
+    message=${1:-$default_msg}
+    color=${2:-$green}
+    echo -e -n "$color$message$reset_color"
+    echo
+    return
+}
+
+echo_error() {
+    local my_string=""
+    until [ -z "$1" ]
+    do
+        my_string="$my_string$1"
+        shift
+        done
+        cecho "$my_string" $red
+}
+
+echo_warning() {
+    local my_string=""
+    until [ -z "$1" ]
+    do
+        my_string="$my_string$1"
+        shift
+    done
+    cecho "$my_string" $yellow
+}
+
+echo_success() {
+    local my_string=""
+    until [ -z "$1" ]
+    do
+        my_string="$my_string$1"
+        shift
+    done
+    cecho "$my_string" $green
+}
+
+bash_exec() {
+    output=$($1 2>&1)
+    result=$?
+    if [ $result -eq 0 ]
+    then
+        echo_success "$1"
+    else
+        echo_error "$1: $output"
+    fi
+}
+
+rotate_log_file () {
+    if [ -f $1 ]; then
+        TIMESTAMP=`date +%Y-%m-%d.%Hh_%Mm_%Ss`
+        NEWLOGFILE=$1.$TIMESTAMP
+        mv $1 $NEWLOGFILE
+        cat /dev/null > $1
+        nohup gzip -f -9 $NEWLOGFILE &
+    fi
+}
+
+extract() {
+    if [ -f $1 ] ; then
+        case $1 in
+            *.tar.bz2)    tar xvjf $1        ;;
+            *.tar.gz)     tar xvzf $1        ;;
+            *.bz2)        bunzip2  $1        ;;
+            *.rar)        unrar    $1        ;;
+            *.gz)         gunzip   $1        ;;
+            *.tar)        tar xvf  $1        ;;
+            *.tbz2)       tar xvjf $1        ;;
+            *.tgz)        tar xvzf $1        ;;
+            *.zip)        unzip    $1        ;;
+            *.Z)          uncompress $1      ;;
+            *.7z)         7z x     $1        ;;
+            *)            echo_error "'$1' cannot be extracted via >extract<" ; return 1;;
+        esac
+    else
+        echo_error "'$1' is not a valid file"
+        return 1
+    fi
+    return 0
+}
+
+
+set_openair() {
+    path=`pwd`
+    declare -i length_path
+    declare -i index
+    length_path=${#path}
+
+    for i in 'openair1' 'openair2' 'openair3' 'openair-cn' 'targets'
+    do
+        index=`echo $path | grep -b -o $i | cut -d: -f1`
+        #echo ${path%$token*}
+        if [[ $index -lt $length_path  && index -gt 0 ]]
+           then
+               declare -x OPENAIR_DIR
+               index=`expr $index - 1`
+               openair_path=`echo $path | cut -c1-$index`
+               #openair_path=`echo ${path:0:$index}`
+               export OPENAIR_DIR=$openair_path
+               export OPENAIR_HOME=$openair_path
+               export OPENAIR1_DIR=$openair_path/openair1
+               export OPENAIR2_DIR=$openair_path/openair2
+               export OPENAIR3_DIR=$openair_path/openair3
+               export OPENAIRCN_DIR=$openair_path/openair-cn
+               export OPENAIR_TARGETS=$openair_path/targets
+               return 0
+           fi
+    done
+    return -1
+}
+
+test_install_asn1c_4_rrc_cellular() {
+    if [ -d $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/asn1c ]; then
+        if [ -x $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/asn1c/asn1c/asn1c ]; then
+            if [ -x /usr/local/bin/asn1c ]; then
+                diff /usr/local/bin/asn1c $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/asn1c/asn1c/asn1c >/dev/null 2>&1;
+                if [ $? -eq 0 ]; then
+                    echo_success "asn1c for RRC cellular installed"
+                    return 0
+                fi
+            fi
+            echo_warning "Installing asn1c for RRC cellular..."
+            cd $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/asn1c
+            make install
+            return 0
+        fi
+    else
+        echo_warning "asn1c for RRC cellular is not installed in $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/. Installing it"
+        cd $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c
+        svn co https://asn1c.svn.sourceforge.net/svnroot/asn1c/trunk asn1c
+    fi
+    echo_warning "Configuring and building and installing asn1c for RRC cellular..."
+    cd $OPENAIR2_DIR/RRC/LITE/MESSAGES/asn1c/asn1c
+    ./configure
+    make
+    make install
+}
+
+wait_process_started () {
+    if  [ -z "$1" ]
+    then
+        echo_error "WAITING FOR PROCESS START: NO PROCESS"
+        return 1
+    fi
+    ps -C $1 > /dev/null 2>&1
+    while [ $? -ne 0 ]; do
+        echo_warning "WAITING FOR $1 START"
+        sleep 2
+        ps -C $1 > /dev/null 2>&1
+    done
+    echo_success "PROCESS $1 STARTED"
+    return 0
+}
+
+is_process_started () {
+    if  [ -z "$1" ]
+    then
+        echo_error "WAITING FOR PROCESS START: ERROR NO PROCESS NAME IN ARGUMENT"
+        return 1
+    fi
+    ps -C $1 > /dev/null 2>&1
+    if [ $? -ne 0 ]
+    then
+        echo_success "PROCESS $1 NOT STARTED"
+        return 1
+    fi
+    echo_success "PROCESS $1 STARTED"
+    return 0
+}
+
+assert() {
+    # If condition false
+    # exit from script with error message
+    E_PARAM_ERR=98
+    E_PARAM_FAILED=99
+
+    if [ -z "$2" ] # Not enought parameters passed.
+    then
+        return $E_PARAM_ERR
+    fi
+
+    lineno=$2
+    if [ ! $1 ]
+    then
+        echo "Assertion failed:  \"$1\""
+        echo "File \"$0\", line $lineno"
+        exit $E_ASSERT_FAILED
+    fi
+}
+
+
+test_install_package() {
+  # usage: test_install_package package_name_to_be_installed optional_option_to_apt_get_install
+  dpkg --get-selections $1  | grep -i install > /dev/null 2>&1
+  if [ $? -ne 0 ]; then
+      echo_warning "Package $1 is not installed. Installing it." >&2
+      apt-get install $2 $1 -y
+      dpkg --get-selections $1  | grep -i install > /dev/null 2>&1
+      if [ $? -ne 0 ]; then
+          exit 1
+      fi
+  else
+      echo_success "$1 is installed"
+  fi
+  return 0
+}
+
+
+
+test_command_install_package() {
+  # usage: test_command_install_package searched_binary package_to_be_installed_if_binary_not_found optional_option_to_apt_get_install
+  if [ $# -eq 2 ]; then
+      command -v $1 >/dev/null 2>&1 || { echo_warning "Program $1 is not installed. Trying installing it." >&2; apt-get install $2 -y; command -v $1 >/dev/null 2>&1 || { echo_error "Program $1 is not installed. Aborting." >&2; exit 1; };}
+  else
+      if [ $# -eq 3 ]; then
+          command -v $1 >/dev/null 2>&1 || { echo_warning "Program $1 is not installed. Trying installing it (apt-get install $3 $2)." >&2; apt-get install $3 $2 -y; command -v $1 >/dev/null 2>&1 || { echo_error "Program $1 is not installed. Aborting." >&2; exit 1; };}
+      else
+          echo_success "test_command_install_package: BAD PARAMETER"
+          exit 1
+      fi
+  fi
+  echo_success "$1 available"
+}
+
+test_command_install_script() {
+  # usage: test_command_install_script searched_binary script_to_be_invoked_if_binary_not_found
+  command -v $1 >/dev/null 2>&1 || { echo_warning "Program $1 is not installed. Trying installing it." >&2; bash $2; command -v $1 >/dev/null 2>&1 || { echo_error "Program $1 is not installed. Aborting." >&2; exit 1; };}
+  echo_success "$1 available"
+}
+
+start_openswitch_daemon() {
+  rmmod -s bridge
+  if [[ -e "/lib/modules/`uname -r`/extra/openvswitch.ko" ]] ; then
+      bash_exec "insmod /lib/modules/`uname -r`/extra/openvswitch.ko"
+  else
+      echo_error "/lib/modules/`uname -r`/extra/openvswitch.ko not found, exiting"
+      exit -1
+  fi
+  is_process_started "ovsdb-server"
+  if [ $? -ne 0 ]
+  then
+      ovsdb-server --remote=punix:/usr/local/var/run/openvswitch/db.sock --remote=db:Open_vSwitch,manager_options --pidfile --detach
+      wait_process_started "ovsdb-server"
+  fi
+  # To be done after installation
+  # ovs-vsctl    --no-wait init
+  is_process_started "ovs-vswitchd"
+  if [ $? -ne 0 ]
+  then
+      ovs-vswitchd --pidfile --detach
+      wait_process_started "ovs-vswitchd"
+  fi
+}
+
+check_enb_config() {
+    if [ ! -f $OPENAIR3_DIR/OPENAIRMME/UTILS/CONF/enb_$HOSTNAME.conf ]
+        then
+        echo "Cannot find file $OPENAIR3_DIR/OPENAIRMME/UTILS/CONF/enb_$HOSTNAME.conf"
+        echo "Please make sure to create one that fits your use (you can use mme_default.conf file as template)"
+        exit -1
+        fi
+}
+
+
+check_for_root_rights() {
+    if [[ $EUID -ne 0 ]]; then
+        echo "This script must be run as root" 1>&2
+        exit -1
+    fi
+}
+
+###########################################################
+declare -x OPENAIR_DIR=""
+declare -x OPENAIR_HOME=""
+declare -x OPENAIR1_DIR=""
+declare -x OPENAIR2_DIR=""
+declare -x OPENAIR3_DIR=""
+declare -x OPENAIRCN_DIR=""
+declare -x OPENAIR_TARGETS=""
+###########################################################
+
+set_openair
+cecho "OPENAIR_DIR     = $OPENAIR_DIR" $green
+cecho "OPENAIR_HOME    = $OPENAIR_HOME" $green
+cecho "OPENAIR1_DIR    = $OPENAIR1_DIR" $green
+cecho "OPENAIR2_DIR    = $OPENAIR2_DIR" $green
+cecho "OPENAIR3_DIR    = $OPENAIR3_DIR" $green
+cecho "OPENAIRCN_DIR   = $OPENAIRCN_DIR" $green
+cecho "OPENAIR_TARGETS = $OPENAIR_TARGETS" $green
-- 
2.26.2