main.py

# * Licensed to the OpenAirInterface (OAI) Software Alliance under one or more
# * contributor license agreements.  See the NOTICE file distributed with
# * this work for additional information regarding copyright ownership.
# * The OpenAirInterface Software Alliance licenses this file to You under
# * the OAI Public License, Version 1.1  (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.openairinterface.org/?page_id=698
# *
# * 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.
# *-------------------------------------------------------------------------------
# * For more information about the OpenAirInterface (OAI) Software Alliance:
# *      contact@openairinterface.org
# */
#---------------------------------------------------------------------
# Python for CI of OAI-eNB + COTS-UE
#
#   Required Python Version
#     Python 3.x
#
#   Required Python Package
#     pexpect
#---------------------------------------------------------------------

#-----------------------------------------------------------
# Version
#-----------------------------------------------------------
Version = '0.1'

#-----------------------------------------------------------
# Constants
#-----------------------------------------------------------
ALL_PROCESSES_OK = 0
ENB_PROCESS_FAILED = -1
ENB_PROCESS_OK = +1
ENB_PROCESS_SEG_FAULT = -11
ENB_PROCESS_ASSERTION = -12
ENB_PROCESS_REALTIME_ISSUE = -13
ENB_PROCESS_NOLOGFILE_TO_ANALYZE = -14
ENB_PROCESS_SLAVE_RRU_NOT_SYNCED = -15
HSS_PROCESS_FAILED = -2
HSS_PROCESS_OK = +2
MME_PROCESS_FAILED = -3
MME_PROCESS_OK = +3
SPGW_PROCESS_FAILED = -4
SPGW_PROCESS_OK = +4
UE_IP_ADDRESS_ISSUE = -5
OAI_UE_PROCESS_NOLOGFILE_TO_ANALYZE = -20
OAI_UE_PROCESS_COULD_NOT_SYNC = -21
OAI_UE_PROCESS_ASSERTION = -22
OAI_UE_PROCESS_FAILED = -23
OAI_UE_PROCESS_NO_TUNNEL_INTERFACE = -24
OAI_UE_PROCESS_SEG_FAULT = -25
OAI_UE_PROCESS_OK = +6

UE_STATUS_DETACHED = 0
UE_STATUS_DETACHING = 1
UE_STATUS_ATTACHING = 2
UE_STATUS_ATTACHED = 3

X2_HO_REQ_STATE__IDLE = 0
X2_HO_REQ_STATE__TARGET_RECEIVES_REQ = 1
X2_HO_REQ_STATE__TARGET_RRC_RECFG_COMPLETE = 2
X2_HO_REQ_STATE__TARGET_SENDS_SWITCH_REQ = 3
X2_HO_REQ_STATE__SOURCE_RECEIVES_REQ_ACK = 10

#-----------------------------------------------------------
# Import
#-----------------------------------------------------------
import sys		# arg
import re		# reg
import pexpect		# pexpect
import time		# sleep
import os
import subprocess
import xml.etree.ElementTree as ET
import logging
import datetime
import signal
from multiprocessing import Process, Lock, SimpleQueue
logging.basicConfig(
	level=logging.DEBUG,
	format="[%(asctime)s] %(name)s:%(levelname)s: %(message)s"
)

#-----------------------------------------------------------
# Class Declaration
#-----------------------------------------------------------
class OaiCiTest():
	def __init__(self):
		self.FailReportCnt = 0
		self.prematureExit = False
		self.ranRepository = ''
		self.ranBranch = ''
		self.ranAllowMerge = False
		self.ranCommitID = ''
		self.ranTargetBranch = ''
		self.eNBIPAddress = ''
		self.eNBUserName = ''
		self.eNBPassword = ''
		self.eNBSourceCodePath = ''
		#self.EPCIPAddress = ''
		#self.EPCUserName = ''
		#self.EPCPassword = ''
		self.eNB1IPAddress = ''
		self.eNB1UserName = ''
		self.eNB1Password = ''
		self.eNB1SourceCodePath = ''
		self.eNB2IPAddress = ''
		self.eNB2UserName = ''
		self.eNB2Password = ''
		self.eNB2SourceCodePath = ''
		#self.EPCSourceCodePath = ''
		#self.EPCType = ''
		#self.EPC_PcapFileName  = ''
		self.ADBIPAddress = ''
		self.ADBUserName = ''
		self.ADBPassword = ''
		self.ADBCentralized = True
		self.testCase_id = ''
		self.testXMLfiles = []
		self.nbTestXMLfiles = 0
		self.desc = ''
		self.Build_eNB_args = ''
		self.backgroundBuild = False
		self.backgroundBuildTestId = ['', '', '']
		self.Build_eNB_forced_workspace_cleanup = False
		self.Initialize_eNB_args = ''
		self.air_interface = 'lte'
		self.eNB_instance = ''
		self.eNB_serverId = ''
		self.eNBLogFiles = ['', '', '']
		self.eNBOptions = ['', '', '']
		self.eNBmbmsEnables = [False, False, False]
		self.eNBstatuses = [-1, -1, -1]
		self.ping_args = ''
		self.ping_packetloss_threshold = ''
		self.iperf_args = ''
		self.iperf_packetloss_threshold = ''
		self.iperf_profile = ''
		self.iperf_options = ''
		self.nbMaxUEtoAttach = -1
		self.UEDevices = []
		self.UEDevicesStatus = []
		self.UEDevicesRemoteServer = []
		self.UEDevicesRemoteUser = []
		self.UEDevicesOffCmd = []
		self.UEDevicesOnCmd = []
		self.UEDevicesRebootCmd = []
		self.CatMDevices = []
		self.UEIPAddresses = []
		self.htmlFile = ''
		self.htmlHeaderCreated = False
		self.htmlFooterCreated = False
		self.htmlUEConnected = -1
		self.htmleNBFailureMsg = ''
		self.htmlUEFailureMsg = ''
		self.picocom_closure = False
		self.idle_sleep_time = 0
		self.x2_ho_options = 'network'
		self.x2NbENBs = 0
		self.x2ENBBsIds = []
		self.x2ENBConnectedUEs = []
		self.htmlTabRefs = []
		self.htmlTabNames = []
		self.htmlTabIcons = []
		self.repeatCounts = []
		self.finalStatus = False
		self.OsVersion = ''
		self.KernelVersion = ''
		self.UhdVersion = ''
		self.UsrpBoard = ''
		self.CpuNb = ''
		self.CpuModel = ''
		self.CpuMHz = ''
		self.UEIPAddress = ''
		self.UEUserName = ''
		self.UEPassword = ''
		self.UE_instance = ''
		self.UESourceCodePath = ''
		self.UELogFile = ''
		self.Build_OAI_UE_args = ''
		self.Initialize_OAI_UE_args = ''
		self.clean_repository = True
		self.flexranCtrlInstalled = False
		self.flexranCtrlStarted = False
		self.expectedNbOfConnectedUEs = 0
		self.startTime = 0

	def BuildeNB(self):
		if self.ranRepository == '' or self.ranBranch == '' or self.ranCommitID == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		if self.eNB_serverId == '0':
			lIpAddr = self.eNBIPAddress
			lUserName = self.eNBUserName
			lPassWord = self.eNBPassword
			lSourcePath = self.eNBSourceCodePath
		elif self.eNB_serverId == '1':
			lIpAddr = self.eNB1IPAddress
			lUserName = self.eNB1UserName
			lPassWord = self.eNB1Password
			lSourcePath = self.eNB1SourceCodePath
		elif self.eNB_serverId == '2':
			lIpAddr = self.eNB2IPAddress
			lUserName = self.eNB2UserName
			lPassWord = self.eNB2Password
			lSourcePath = self.eNB2SourceCodePath
		if lIpAddr == '' or lUserName == '' or lPassWord == '' or lSourcePath == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		SSH.open(lIpAddr, lUserName, lPassWord)
		# Check if we build an 5G-NR gNB or an LTE eNB
		result = re.search('--gNB', self.Build_eNB_args)
		if result is not None:
			self.air_interface = 'nr'
		else:
			self.air_interface = 'lte'
		# Worakround for some servers, we need to erase completely the workspace
		if self.Build_eNB_forced_workspace_cleanup:
			SSH.command('echo ' + lPassWord + ' | sudo -S rm -Rf ' + lSourcePath, '\$', 15)
		# on RedHat/CentOS .git extension is mandatory
		result = re.search('([a-zA-Z0-9\:\-\.\/])+\.git', self.ranRepository)
		if result is not None:
			full_ran_repo_name = self.ranRepository
		else:
			full_ran_repo_name = self.ranRepository + '.git'
		SSH.command('mkdir -p ' + lSourcePath, '\$', 5)
		SSH.command('cd ' + lSourcePath, '\$', 5)
		SSH.command('if [ ! -e .git ]; then stdbuf -o0 git clone ' + full_ran_repo_name + ' .; else stdbuf -o0 git fetch --prune; fi', '\$', 600)
		# Raphael: here add a check if git clone or git fetch went smoothly
		SSH.command('git config user.email "jenkins@openairinterface.org"', '\$', 5)
		SSH.command('git config user.name "OAI Jenkins"', '\$', 5)
		# Checking the BUILD INFO file
		if not self.backgroundBuild:
			SSH.command('ls *.txt', '\$', 5)
			result = re.search('LAST_BUILD_INFO', SSH.getBefore())
			if result is not None:
				mismatch = False
				SSH.command('grep SRC_COMMIT LAST_BUILD_INFO.txt', '\$', 2)
				result = re.search(self.ranCommitID, SSH.getBefore())
				if result is None:
					mismatch = True
				SSH.command('grep MERGED_W_TGT_BRANCH LAST_BUILD_INFO.txt', '\$', 2)
				if (self.ranAllowMerge):
					result = re.search('YES', SSH.getBefore())
					if result is None:
						mismatch = True
					SSH.command('grep TGT_BRANCH LAST_BUILD_INFO.txt', '\$', 2)
					if self.ranTargetBranch == '':
						result = re.search('develop', SSH.getBefore())
					else:
						result = re.search(self.ranTargetBranch, SSH.getBefore())
					if result is None:
						mismatch = True
				else:
					result = re.search('NO', SSH.getBefore())
					if result is None:
						mismatch = True
				if not mismatch:
					SSH.close()
					self.CreateHtmlTestRow(self.Build_eNB_args, 'OK', ALL_PROCESSES_OK)
					return

		SSH.command('echo ' + lPassWord + ' | sudo -S git clean -x -d -ff', '\$', 30)
		# if the commit ID is provided use it to point to it
		if self.ranCommitID != '':
			SSH.command('git checkout -f ' + self.ranCommitID, '\$', 5)
		# if the branch is not develop, then it is a merge request and we need to do 
		# the potential merge. Note that merge conflicts should already been checked earlier
		if (self.ranAllowMerge):
			if self.ranTargetBranch == '':
				if (self.ranBranch != 'develop') and (self.ranBranch != 'origin/develop'):
					SSH.command('git merge --ff origin/develop -m "Temporary merge for CI"', '\$', 5)
			else:
				logging.debug('Merging with the target branch: ' + self.ranTargetBranch)
				SSH.command('git merge --ff origin/' + self.ranTargetBranch + ' -m "Temporary merge for CI"', '\$', 5)
		SSH.command('source oaienv', '\$', 5)
		SSH.command('cd cmake_targets', '\$', 5)
		SSH.command('mkdir -p log', '\$', 5)
		SSH.command('chmod 777 log', '\$', 5)
		# no need to remove in log (git clean did the trick)
		if self.backgroundBuild:
			SSH.command('echo "./build_oai ' + self.Build_eNB_args + '" > ./my-lte-softmodem-build.sh', '\$', 5)
			SSH.command('chmod 775 ./my-lte-softmodem-build.sh', '\$', 5)
			SSH.command('echo ' + lPassWord + ' | sudo -S -E daemon --inherit --unsafe --name=build_enb_daemon --chdir=' + lSourcePath + '/cmake_targets -o ' + lSourcePath + '/cmake_targets/compile_oai_enb.log ./my-lte-softmodem-build.sh', '\$', 5)
			SSH.close()
			self.CreateHtmlTestRow(self.Build_eNB_args, 'OK', ALL_PROCESSES_OK)
			self.backgroundBuildTestId[int(self.eNB_instance)] = self.testCase_id
			return
		SSH.command('stdbuf -o0 ./build_oai ' + self.Build_eNB_args + ' 2>&1 | stdbuf -o0 tee compile_oai_enb.log', 'Bypassing the Tests|build have failed', 1500)
		self.checkBuildeNB(lIpAddr, lUserName, lPassWord, lSourcePath, self.testCase_id)

	def WaitBuildeNBisFinished(self):
		if self.eNB_serverId == '0':
			lIpAddr = self.eNBIPAddress
			lUserName = self.eNBUserName
			lPassWord = self.eNBPassword
			lSourcePath = self.eNBSourceCodePath
		elif self.eNB_serverId == '1':
			lIpAddr = self.eNB1IPAddress
			lUserName = self.eNB1UserName
			lPassWord = self.eNB1Password
			lSourcePath = self.eNB1SourceCodePath
		elif self.eNB_serverId == '2':
			lIpAddr = self.eNB2IPAddress
			lUserName = self.eNB2UserName
			lPassWord = self.eNB2Password
			lSourcePath = self.eNB2SourceCodePath
		if lIpAddr == '' or lUserName == '' or lPassWord == '' or lSourcePath == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		SSH.open(lIpAddr, lUserName, lPassWord)
		count = 40
		buildOAIprocess = True
		while (count > 0) and buildOAIprocess:
			SSH.command('ps aux | grep --color=never build_ | grep -v grep', '\$', 3)
			result = re.search('build_oai', SSH.getBefore())
			if result is None:
				buildOAIprocess = False
			else:
				count -= 1
				time.sleep(30)
		self.checkBuildeNB(lIpAddr, lUserName, lPassWord, lSourcePath, self.backgroundBuildTestId[int(self.eNB_instance)])

	def checkBuildeNB(self, lIpAddr, lUserName, lPassWord, lSourcePath, testcaseId):
		SSH.command('cd ' + lSourcePath + '/cmake_targets', '\$', 3)
		SSH.command('ls ran_build/build', '\$', 3)
		SSH.command('ls ran_build/build', '\$', 3)
		if self.air_interface == 'nr':
			nodeB_prefix = 'g'
		else:
			nodeB_prefix = 'e'
		buildStatus = True
		result = re.search(self.air_interface + '-softmodem', SSH.getBefore())
		if result is None:
			buildStatus = False
		else:
			# Generating a BUILD INFO file
			SSH.command('echo "SRC_BRANCH: ' + self.ranBranch + '" > ../LAST_BUILD_INFO.txt', '\$', 2)
			SSH.command('echo "SRC_COMMIT: ' + self.ranCommitID + '" >> ../LAST_BUILD_INFO.txt', '\$', 2)
			if (self.ranAllowMerge):
				SSH.command('echo "MERGED_W_TGT_BRANCH: YES" >> ../LAST_BUILD_INFO.txt', '\$', 2)
				if self.ranTargetBranch == '':
					SSH.command('echo "TGT_BRANCH: develop" >> ../LAST_BUILD_INFO.txt', '\$', 2)
				else:
					SSH.command('echo "TGT_BRANCH: ' + self.ranTargetBranch + '" >> ../LAST_BUILD_INFO.txt', '\$', 2)
			else:
				SSH.command('echo "MERGED_W_TGT_BRANCH: NO" >> ../LAST_BUILD_INFO.txt', '\$', 2)
		SSH.command('mkdir -p build_log_' + testcaseId, '\$', 5)
		SSH.command('mv log/* ' + 'build_log_' + testcaseId, '\$', 5)
		SSH.command('mv compile_oai_enb.log ' + 'build_log_' + testcaseId, '\$', 5)
		if self.eNB_serverId != '0':
			SSH.command('cd cmake_targets', '\$', 5)
			SSH.command('if [ -e tmp_build' + testcaseId + '.zip ]; then rm -f tmp_build' + testcaseId + '.zip; fi', '\$', 5)
			SSH.command('zip -r -qq tmp_build' + testcaseId + '.zip build_log_' + testcaseId, '\$', 5)
			SSH.close()
			if (os.path.isfile('./tmp_build' + testcaseId + '.zip')):
				os.remove('./tmp_build' + testcaseId + '.zip')
			SSH.copyin(lIpAddr, lUserName, lPassWord, lSourcePath + '/cmake_targets/tmp_build' + testcaseId + '.zip', '.')
			if (os.path.isfile('./tmp_build' + testcaseId + '.zip')):
				SSH.copyout(self.eNBIPAddress, self.eNBUserName, self.eNBPassword, './tmp_build' + testcaseId + '.zip', self.eNBSourceCodePath + '/cmake_targets/.')
				os.remove('./tmp_build' + testcaseId + '.zip')
				SSH.open(self.eNBIPAddress, self.eNBUserName, self.eNBPassword)
				SSH.command('cd ' + self.eNBSourceCodePath + '/cmake_targets', '\$', 5)
				SSH.command('unzip -qq -DD tmp_build' + testcaseId + '.zip', '\$', 5)
				SSH.command('rm -f tmp_build' + testcaseId + '.zip', '\$', 5)
				SSH.close()
		else:
			SSH.close()

		if buildStatus:
			logging.info('\u001B[1m Building OAI ' + nodeB_prefix + 'NB Pass\u001B[0m')
			self.CreateHtmlTestRow(self.Build_eNB_args, 'OK', ALL_PROCESSES_OK)
		else:
			logging.error('\u001B[1m Building OAI ' + nodeB_prefix + 'NB Failed\u001B[0m')
			self.CreateHtmlTestRow(self.Build_eNB_args, 'KO', ALL_PROCESSES_OK)
			self.CreateHtmlTabFooter(False)
			sys.exit(1)

	def BuildOAIUE(self):
		if self.UEIPAddress == '' or self.ranRepository == '' or self.ranBranch == '' or self.UEUserName == '' or self.UEPassword == '' or self.UESourceCodePath == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		SSH.open(self.UEIPAddress, self.UEUserName, self.UEPassword)
		result = re.search('--nrUE', self.Build_OAI_UE_args)
		if result is not None:
			self.air_interface = 'nr'
			ue_prefix = 'NR '
		else:
			self.air_interface = 'lte'
			ue_prefix = ''
		result = re.search('([a-zA-Z0-9\:\-\.\/])+\.git', self.ranRepository)
		if result is not None:
			full_ran_repo_name = self.ranRepository
		else:
			full_ran_repo_name = self.ranRepository + '.git'
		SSH.command('mkdir -p ' + self.UESourceCodePath, '\$', 5)
		SSH.command('cd ' + self.UESourceCodePath, '\$', 5)
		SSH.command('if [ ! -e .git ]; then stdbuf -o0 git clone ' + full_ran_repo_name + ' .; else stdbuf -o0 git fetch --prune; fi', '\$', 600)
		# here add a check if git clone or git fetch went smoothly
		SSH.command('git config user.email "jenkins@openairinterface.org"', '\$', 5)
		SSH.command('git config user.name "OAI Jenkins"', '\$', 5)
		if self.clean_repository:
			SSH.command('ls *.txt', '\$', 5)
			result = re.search('LAST_BUILD_INFO', SSH.getBefore())
			if result is not None:
				mismatch = False
				SSH.command('grep SRC_COMMIT LAST_BUILD_INFO.txt', '\$', 2)
				result = re.search(self.ranCommitID, SSH.getBefore())
				if result is None:
					mismatch = True
				SSH.command('grep MERGED_W_TGT_BRANCH LAST_BUILD_INFO.txt', '\$', 2)
				if (self.ranAllowMerge):
					result = re.search('YES', SSH.getBefore())
					if result is None:
						mismatch = True
					SSH.command('grep TGT_BRANCH LAST_BUILD_INFO.txt', '\$', 2)
					if self.ranTargetBranch == '':
						result = re.search('develop', SSH.getBefore())
					else:
						result = re.search(self.ranTargetBranch, SSH.getBefore())
					if result is None:
						mismatch = True
				else:
					result = re.search('NO', SSH.getBefore())
					if result is None:
						mismatch = True
				if not mismatch:
					SSH.close()
					self.CreateHtmlTestRow(self.Build_eNB_args, 'OK', ALL_PROCESSES_OK)
					return

			SSH.command('echo ' + self.UEPassword + ' | sudo -S git clean -x -d -ff', '\$', 30)

		# if the commit ID is provided use it to point to it
		if self.ranCommitID != '':
			SSH.command('git checkout -f ' + self.ranCommitID, '\$', 5)
		# if the branch is not develop, then it is a merge request and we need to do 
		# the potential merge. Note that merge conflicts should already been checked earlier
		if (self.ranAllowMerge):
			if self.ranTargetBranch == '':
				if (self.ranBranch != 'develop') and (self.ranBranch != 'origin/develop'):
					SSH.command('git merge --ff origin/develop -m "Temporary merge for CI"', '\$', 5)
			else:
				logging.debug('Merging with the target branch: ' + self.ranTargetBranch)
				SSH.command('git merge --ff origin/' + self.ranTargetBranch + ' -m "Temporary merge for CI"', '\$', 5)
		SSH.command('source oaienv', '\$', 5)
		SSH.command('cd cmake_targets', '\$', 5)
		SSH.command('mkdir -p log', '\$', 5)
		SSH.command('chmod 777 log', '\$', 5)
		# no need to remove in log (git clean did the trick)
		SSH.command('stdbuf -o0 ./build_oai ' + self.Build_OAI_UE_args + ' 2>&1 | stdbuf -o0 tee compile_oai_ue.log', 'Bypassing the Tests|build have failed', 600)
		SSH.command('ls ran_build/build', '\$', 3)
		SSH.command('ls ran_build/build', '\$', 3)
		buildStatus = True
		result = re.search(self.air_interface + '-uesoftmodem', SSH.getBefore())
		if result is None:
			buildStatus = False
		SSH.command('mkdir -p build_log_' + self.testCase_id, '\$', 5)
		SSH.command('mv log/* ' + 'build_log_' + self.testCase_id, '\$', 5)
		SSH.command('mv compile_oai_ue.log ' + 'build_log_' + self.testCase_id, '\$', 5)
		if buildStatus:
			# Generating a BUILD INFO file
			SSH.command('echo "SRC_BRANCH: ' + self.ranBranch + '" > ../LAST_BUILD_INFO.txt', '\$', 2)
			SSH.command('echo "SRC_COMMIT: ' + self.ranCommitID + '" >> ../LAST_BUILD_INFO.txt', '\$', 2)
			if (self.ranAllowMerge):
				SSH.command('echo "MERGED_W_TGT_BRANCH: YES" >> ../LAST_BUILD_INFO.txt', '\$', 2)
				if self.ranTargetBranch == '':
					SSH.command('echo "TGT_BRANCH: develop" >> ../LAST_BUILD_INFO.txt', '\$', 2)
				else:
					SSH.command('echo "TGT_BRANCH: ' + self.ranTargetBranch + '" >> ../LAST_BUILD_INFO.txt', '\$', 2)
			else:
				SSH.command('echo "MERGED_W_TGT_BRANCH: NO" >> ../LAST_BUILD_INFO.txt', '\$', 2)
			SSH.close()
			self.CreateHtmlTestRow(self.Build_OAI_UE_args, 'OK', ALL_PROCESSES_OK, 'OAI UE')
		else:
			SSH.close()
			logging.error('\u001B[1m Building OAI UE Failed\u001B[0m')
			self.CreateHtmlTestRow(self.Build_OAI_UE_args, 'KO', ALL_PROCESSES_OK, 'OAI UE')
			self.CreateHtmlTabFooter(False)
			sys.exit(1)
	
	def CheckFlexranCtrlInstallation(self):
		if EPC.GetIPAddress() == '' or EPC.GetUserName() == '' or EPC.GetPassword() == '':
			return
		SSH.open(EPC.GetIPAddress(), EPC.GetUserName(), EPC.GetPassword())
		SSH.command('ls -ls /opt/flexran_rtc/*/rt_controller', '\$', 5)
		result = re.search('/opt/flexran_rtc/build/rt_controller', SSH.getBefore())
		if result is not None:
			self.flexranCtrlInstalled = True
			logging.debug('Flexran Controller is installed')
		SSH.close()

	def InitializeFlexranCtrl(self):
		if self.flexranCtrlInstalled == False:
			return
		if EPC.GetIPAddress() == '' or EPC.GetUserName() == '' or EPC.GetPassword() == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		SSH.open(EPC.GetIPAddress(), EPC.GetUserName(), EPC.GetPassword())
		SSH.command('cd /opt/flexran_rtc', '\$', 5)
		SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S rm -f log/*.log', '\$', 5)
		SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S echo "build/rt_controller -c log_config/basic_log" > ./my-flexran-ctl.sh', '\$', 5)
		SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S chmod 755 ./my-flexran-ctl.sh', '\$', 5)
		SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S daemon --unsafe --name=flexran_rtc_daemon --chdir=/opt/flexran_rtc -o /opt/flexran_rtc/log/flexranctl_' + self.testCase_id + '.log ././my-flexran-ctl.sh', '\$', 5)
		SSH.command('ps -aux | grep --color=never rt_controller', '\$', 5)
		result = re.search('rt_controller -c ', SSH.getBefore())
		if result is not None:
			logging.debug('\u001B[1m Initialize FlexRan Controller Completed\u001B[0m')
			self.flexranCtrlStarted = True
		SSH.close()
		self.CreateHtmlTestRow('N/A', 'OK', ALL_PROCESSES_OK)

	def InitializeeNB(self):
		if self.eNB_serverId == '0':
			lIpAddr = self.eNBIPAddress
			lUserName = self.eNBUserName
			lPassWord = self.eNBPassword
			lSourcePath = self.eNBSourceCodePath
		elif self.eNB_serverId == '1':
			lIpAddr = self.eNB1IPAddress
			lUserName = self.eNB1UserName
			lPassWord = self.eNB1Password
			lSourcePath = self.eNB1SourceCodePath
		elif self.eNB_serverId == '2':
			lIpAddr = self.eNB2IPAddress
			lUserName = self.eNB2UserName
			lPassWord = self.eNB2Password
			lSourcePath = self.eNB2SourceCodePath
		if lIpAddr == '' or lUserName == '' or lPassWord == '' or lSourcePath == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		check_eNB = False
		check_OAI_UE = False
		pStatus = self.CheckProcessExist(check_eNB, check_OAI_UE)
		if (pStatus < 0):
			self.CreateHtmlTestRow(self.Initialize_eNB_args, 'KO', pStatus)
			self.CreateHtmlTabFooter(False)
			sys.exit(1)
		# If tracer options is on, running tshark on EPC side and capture traffic b/ EPC and eNB
		result = re.search('T_stdout', str(self.Initialize_eNB_args))
		if result is not None:
			SSH.open(EPC.GetIPAddress(), EPC.GetUserName(), EPC.GetPassword())
			SSH.command('ip addr show | awk -f /tmp/active_net_interfaces.awk | egrep -v "lo|tun"', '\$', 5)
			result = re.search('interfaceToUse=(?P<eth_interface>[a-zA-Z0-9\-\_]+)done', SSH.getBefore())
			if result is not None:
				eth_interface = result.group('eth_interface')
				logging.debug('\u001B[1m Launching tshark on interface ' + eth_interface + '\u001B[0m')
				EPC.EPC_PcapFileName  = 'enb_' + self.testCase_id + '_s1log.pcap'
				SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S rm -f /tmp/' + EPC.EPC_PcapFileName , '\$', 5)
				SSH.command('echo $USER; nohup sudo tshark -f "host ' + lIpAddr +'" -i ' + eth_interface + ' -w /tmp/' + EPC.EPC_PcapFileName  + ' > /tmp/tshark.log 2>&1 &', EPC.GetUserName(), 5)
			SSH.close()
		SSH.open(lIpAddr, lUserName, lPassWord)
		SSH.command('cd ' + lSourcePath, '\$', 5)
		# Initialize_eNB_args usually start with -O and followed by the location in repository
		full_config_file = self.Initialize_eNB_args.replace('-O ','')
		extra_options = ''
		extIdx = full_config_file.find('.conf')
		if (extIdx > 0):
			extra_options = full_config_file[extIdx + 5:]
			# if tracer options is on, compiling and running T Tracer
			result = re.search('T_stdout', str(extra_options))
			if result is not None:
				logging.debug('\u001B[1m Compiling and launching T Tracer\u001B[0m')
				SSH.command('cd common/utils/T/tracer', '\$', 5)
				SSH.command('make', '\$', 10)
				SSH.command('echo $USER; nohup ./record -d ../T_messages.txt -o ' + lSourcePath + '/cmake_targets/enb_' + self.testCase_id + '_record.raw -ON -off VCD -off HEAVY -off LEGACY_GROUP_TRACE -off LEGACY_GROUP_DEBUG > ' + lSourcePath + '/cmake_targets/enb_' + self.testCase_id + '_record.log 2>&1 &', lUserName, 5)
				SSH.command('cd ' + lSourcePath, '\$', 5)
			full_config_file = full_config_file[:extIdx + 5]
			config_path, config_file = os.path.split(full_config_file)
		else:
			sys.exit('Insufficient Parameter')
		ci_full_config_file = config_path + '/ci-' + config_file
		rruCheck = False
		result = re.search('^rru|^rcc|^du.band', str(config_file))
		if result is not None:
			rruCheck = True
		# do not reset board twice in IF4.5 case
		result = re.search('^rru|^enb|^du.band', str(config_file))
		if result is not None:
			SSH.command('echo ' + lPassWord + ' | sudo -S uhd_find_devices', '\$', 60)
			result = re.search('type: b200', SSH.getBefore())
			if result is not None:
				logging.debug('Found a B2xx device --> resetting it')
				SSH.command('echo ' + lPassWord + ' | sudo -S b2xx_fx3_utils --reset-device', '\$', 10)
				# Reloading FGPA bin firmware
				SSH.command('echo ' + lPassWord + ' | sudo -S uhd_find_devices', '\$', 60)
		# Make a copy and adapt to EPC / eNB IP addresses
		SSH.command('cp ' + full_config_file + ' ' + ci_full_config_file, '\$', 5)
		SSH.command('sed -i -e \'s/CI_MME_IP_ADDR/' + EPC.GetIPAddress() + '/\' ' + ci_full_config_file, '\$', 2);
		SSH.command('sed -i -e \'s/CI_ENB_IP_ADDR/' + lIpAddr + '/\' ' + ci_full_config_file, '\$', 2);
		SSH.command('sed -i -e \'s/CI_RCC_IP_ADDR/' + self.eNBIPAddress + '/\' ' + ci_full_config_file, '\$', 2);
		SSH.command('sed -i -e \'s/CI_RRU1_IP_ADDR/' + self.eNB1IPAddress + '/\' ' + ci_full_config_file, '\$', 2);
		SSH.command('sed -i -e \'s/CI_RRU2_IP_ADDR/' + self.eNB2IPAddress + '/\' ' + ci_full_config_file, '\$', 2);
		if self.flexranCtrlInstalled and self.flexranCtrlStarted:
			SSH.command('sed -i -e \'s/FLEXRAN_ENABLED.*;/FLEXRAN_ENABLED        = "yes";/\' ' + ci_full_config_file, '\$', 2);
		else:
			SSH.command('sed -i -e \'s/FLEXRAN_ENABLED.*;/FLEXRAN_ENABLED        = "no";/\' ' + ci_full_config_file, '\$', 2);
		self.eNBmbmsEnables[int(self.eNB_instance)] = False
		SSH.command('grep enable_enb_m2 ' + ci_full_config_file, '\$', 2);
		result = re.search('yes', SSH.getBefore())
		if result is not None:
			self.eNBmbmsEnables[int(self.eNB_instance)] = True
			logging.debug('\u001B[1m MBMS is enabled on this eNB\u001B[0m')
		result = re.search('noS1', str(self.Initialize_eNB_args))
		eNBinNoS1 = False
		if result is not None:
			eNBinNoS1 = True
			logging.debug('\u001B[1m eNB is in noS1 configuration \u001B[0m')
		# Launch eNB with the modified config file
		SSH.command('source oaienv', '\$', 5)
		SSH.command('cd cmake_targets', '\$', 5)
		SSH.command('echo "ulimit -c unlimited && ./ran_build/build/' + self.air_interface + '-softmodem -O ' + lSourcePath + '/' + ci_full_config_file + extra_options + '" > ./my-lte-softmodem-run' + str(self.eNB_instance) + '.sh', '\$', 5)
		SSH.command('chmod 775 ./my-lte-softmodem-run' + str(self.eNB_instance) + '.sh', '\$', 5)
		SSH.command('echo ' + lPassWord + ' | sudo -S rm -Rf enb_' + self.testCase_id + '.log', '\$', 5)
		SSH.command('hostnamectl','\$', 5)
		result = re.search('CentOS Linux 7', SSH.getBefore())
		if result is not None:
			SSH.command('echo $USER; nohup sudo ./my-lte-softmodem-run' + str(self.eNB_instance) + '.sh > ' + lSourcePath + '/cmake_targets/enb_' + self.testCase_id + '.log 2>&1 &', lUserName, 10)
		else:
			SSH.command('echo ' + lPassWord + ' | sudo -S -E daemon --inherit --unsafe --name=enb' + str(self.eNB_instance) + '_daemon --chdir=' + lSourcePath + '/cmake_targets -o ' + lSourcePath + '/cmake_targets/enb_' + self.testCase_id + '.log ./my-lte-softmodem-run' + str(self.eNB_instance) + '.sh', '\$', 5)
		self.eNBLogFiles[int(self.eNB_instance)] = 'enb_' + self.testCase_id + '.log'
		if extra_options != '':
			self.eNBOptions[int(self.eNB_instance)] = extra_options
		time.sleep(6)
		doLoop = True
		loopCounter = 20
		enbDidSync = False
		while (doLoop):
			loopCounter = loopCounter - 1
			if (loopCounter == 0):
				# In case of T tracer recording, we may need to kill it
				result = re.search('T_stdout', str(self.Initialize_eNB_args))
				if result is not None:
					SSH.command('killall --signal SIGKILL record', '\$', 5)
				SSH.close()
				doLoop = False
				logging.error('\u001B[1;37;41m eNB logging system did not show got sync! \u001B[0m')
				self.CreateHtmlTestRow('-O ' + config_file + extra_options, 'KO', ALL_PROCESSES_OK)
				# In case of T tracer recording, we need to kill tshark on EPC side
				result = re.search('T_stdout', str(self.Initialize_eNB_args))
				if result is not None:
					SSH.open(EPC.GetIPAddress(), EPC.GetUserName(), EPC.GetPassword())
					logging.debug('\u001B[1m Stopping tshark \u001B[0m')
					SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S killall --signal SIGKILL tshark', '\$', 5)
					if EPC.EPC_PcapFileName  != '':
						time.sleep(0.5)
						SSH.command('echo ' + EPC.GetPassword() + ' | sudo -S chmod 666 /tmp/' + EPC.EPC_PcapFileName , '\$', 5)
					SSH.close()
					time.sleep(1)
					if EPC.EPC_PcapFileName  != '':
						copyin_res = SSH.copyin(EPC.GetIPAddress(), EPC.GetUserName(), EPC.GetPassword(), '/tmp/' + EPC.EPC_PcapFileName , '.')
						if (copyin_res == 0):
							SSH.copyout(lIpAddr, lUserName, lPassWord, EPC.EPC_PcapFileName , lSourcePath + '/cmake_targets/.')
				self.prematureExit = True
				return
			else:
				SSH.command('stdbuf -o0 cat enb_' + self.testCase_id + '.log | egrep --text --color=never -i "wait|sync|Starting"', '\$', 4)
				if rruCheck:
					result = re.search('wait RUs', SSH.getBefore())
				else:
					result = re.search('got sync|Starting F1AP at CU', SSH.getBefore())
				if result is None:
					time.sleep(6)
				else:
					doLoop = False
					enbDidSync = True
					time.sleep(10)

		if enbDidSync and eNBinNoS1:
			SSH.command('ifconfig oaitun_enb1', '\$', 4)
			SSH.command('ifconfig oaitun_enb1', '\$', 4)
			result = re.search('inet addr:1|inet 1', SSH.getBefore())
			if result is not None:
				logging.debug('\u001B[1m oaitun_enb1 interface is mounted and configured\u001B[0m')
			else:
				logging.error('\u001B[1m oaitun_enb1 interface is either NOT mounted or NOT configured\u001B[0m')
			if self.eNBmbmsEnables[int(self.eNB_instance)]:
				SSH.command('ifconfig oaitun_enm1', '\$', 4)
				result = re.search('inet addr', SSH.getBefore())
				if result is not None:
					logging.debug('\u001B[1m oaitun_enm1 interface is mounted and configured\u001B[0m')
				else:
					logging.error('\u001B[1m oaitun_enm1 interface is either NOT mounted or NOT configured\u001B[0m')
		if enbDidSync:
			self.eNBstatuses[int(self.eNB_instance)] = int(self.eNB_serverId)

		SSH.close()
		self.CreateHtmlTestRow('-O ' + config_file + extra_options, 'OK', ALL_PROCESSES_OK)
		logging.debug('\u001B[1m Initialize eNB Completed\u001B[0m')

	def InitializeUE_common(self, device_id, idx):
		try:
			SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
			if not self.ADBCentralized:
				# Reboot UE
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesRebootCmd[idx], '\$', 60)
				# Wait
				#time.sleep(60)
				# Put in LTE-Mode only
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "settings put global preferred_network_mode 11"\'', '\$', 60)
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "settings put global preferred_network_mode1 11"\'', '\$', 60)
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "settings put global preferred_network_mode2 11"\'', '\$', 60)
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "settings put global preferred_network_mode3 11"\'', '\$', 60)
				# enable data service
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "svc data enable"\'', '\$', 60)
				# we need to do radio on/off cycle to make sure of above changes
				# airplane mode off // radio on
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesOnCmd[idx], '\$', 60)
				#time.sleep(10)
				# airplane mode on // radio off
				#SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesOffCmd[idx], '\$', 60)

				# normal procedure without reboot
				# enable data service
				SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' \'adb -s ' + device_id + ' shell "svc data enable"\'', '\$', 60)
				# airplane mode on // radio off
				SSH.command('ssh ' + self.UEDevicesRemoteUser[idx] + '@' + self.UEDevicesRemoteServer[idx] + ' ' + self.UEDevicesOffCmd[idx], '\$', 60)
				SSH.close()
				return
			# enable data service
			SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "svc data enable"', '\$', 60)

			# The following commands are deprecated since we no longer work on Android 7+
			# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell settings put global airplane_mode_on 1', '\$', 10)
			# SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell am broadcast -a android.intent.action.AIRPLANE_MODE --ez state true', '\$', 60)
			# a dedicated script has to be installed inside the UE
			# airplane mode on means call /data/local/tmp/off
			if device_id == '84B7N16418004022':
				SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell "su - root -c /data/local/tmp/off"', '\$', 60)
			else:
				SSH.command('stdbuf -o0 adb -s ' + device_id + ' shell /data/local/tmp/off', '\$', 60)
			#airplane mode off means call /data/local/tmp/on
			logging.debug('\u001B[1mUE (' + device_id + ') Initialize Completed\u001B[0m')
			SSH.close()
		except:
			os.kill(os.getppid(),signal.SIGUSR1)

	def InitializeUE(self):
		if self.ADBIPAddress == '' or self.ADBUserName == '' or self.ADBPassword == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		multi_jobs = []
		i = 0
		for device_id in self.UEDevices:
			p = Process(target = self.InitializeUE_common, args = (device_id,i,))
			p.daemon = True
			p.start()
			multi_jobs.append(p)
			i += 1
		for job in multi_jobs:
			job.join()
		self.CreateHtmlTestRow('N/A', 'OK', ALL_PROCESSES_OK)

	def InitializeOAIUE(self):
		if self.UEIPAddress == '' or self.UEUserName == '' or self.UEPassword == '' or self.UESourceCodePath == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		if self.air_interface == 'lte':
			result = re.search('--no-L2-connect', str(self.Initialize_OAI_UE_args))
			if result is None:
				check_eNB = True
				check_OAI_UE = False
				pStatus = self.CheckProcessExist(check_eNB, check_OAI_UE)
				if (pStatus < 0):
					self.CreateHtmlTestRow(self.Initialize_OAI_UE_args, 'KO', pStatus)
					self.CreateHtmlTabFooter(False)
					sys.exit(1)
			UE_prefix = ''
		else:
			UE_prefix = 'NR '
		SSH.open(self.UEIPAddress, self.UEUserName, self.UEPassword)
		# b2xx_fx3_utils reset procedure
		SSH.command('echo ' + self.UEPassword + ' | sudo -S uhd_find_devices', '\$', 60)
		result = re.search('type: b200', SSH.getBefore())
		if result is not None:
			logging.debug('Found a B2xx device --> resetting it')
			SSH.command('echo ' + self.UEPassword + ' | sudo -S b2xx_fx3_utils --reset-device', '\$', 10)
			# Reloading FGPA bin firmware
			SSH.command('echo ' + self.UEPassword + ' | sudo -S uhd_find_devices', '\$', 30)
		result = re.search('type: n3xx', SSH.getBefore())
		if result is not None:
			logging.debug('Found a N3xx device --> resetting it')
		SSH.command('cd ' + self.UESourceCodePath, '\$', 5)
		# Initialize_OAI_UE_args usually start with -C and followed by the location in repository
		SSH.command('source oaienv', '\$', 5)
		SSH.command('cd cmake_targets/ran_build/build', '\$', 5)
		if self.air_interface == 'lte':
			result = re.search('--no-L2-connect', str(self.Initialize_OAI_UE_args))
			# We may have to regenerate the .u* files
			if result is None:
				SSH.command('ls /tmp/*.sed', '\$', 5)
				result = re.search('adapt_usim_parameters', SSH.getBefore())
				if result is not None:
					SSH.command('sed -f /tmp/adapt_usim_parameters.sed ../../../openair3/NAS/TOOLS/ue_eurecom_test_sfr.conf > ../../../openair3/NAS/TOOLS/ci-ue_eurecom_test_sfr.conf', '\$', 5)
				else:
					SSH.command('sed -e "s#93#92#" -e "s#8baf473f2f8fd09487cccbd7097c6862#fec86ba6eb707ed08905757b1bb44b8f#" -e "s#e734f8734007d6c5ce7a0508809e7e9c#C42449363BBAD02B66D16BC975D77CC1#" ../../../openair3/NAS/TOOLS/ue_eurecom_test_sfr.conf > ../../../openair3/NAS/TOOLS/ci-ue_eurecom_test_sfr.conf', '\$', 5)
				SSH.command('echo ' + self.UEPassword + ' | sudo -S rm -Rf .u*', '\$', 5)
				SSH.command('echo ' + self.UEPassword + ' | sudo -S ../../../targets/bin/conf2uedata -c ../../../openair3/NAS/TOOLS/ci-ue_eurecom_test_sfr.conf -o .', '\$', 5)
		SSH.command('echo "ulimit -c unlimited && ./'+ self.air_interface +'-uesoftmodem ' + self.Initialize_OAI_UE_args + '" > ./my-lte-uesoftmodem-run' + str(self.UE_instance) + '.sh', '\$', 5)
		SSH.command('chmod 775 ./my-lte-uesoftmodem-run' + str(self.UE_instance) + '.sh', '\$', 5)
		SSH.command('echo ' + self.UEPassword + ' | sudo -S rm -Rf ' + self.UESourceCodePath + '/cmake_targets/ue_' + self.testCase_id + '.log', '\$', 5)
		self.UELogFile = 'ue_' + self.testCase_id + '.log'

		# We are now looping several times to hope we really sync w/ an eNB
		doOutterLoop = True
		outterLoopCounter = 5
		gotSyncStatus = True
		fullSyncStatus = True
		while (doOutterLoop):
			SSH.command('cd ' + self.UESourceCodePath + '/cmake_targets/ran_build/build', '\$', 5)
			SSH.command('echo ' + self.UEPassword + ' | sudo -S rm -Rf ' + self.UESourceCodePath + '/cmake_targets/ue_' + self.testCase_id + '.log', '\$', 5)
			#use nohup instead of daemon
			#SSH.command('echo ' + self.UEPassword + ' | sudo -S -E daemon --inherit --unsafe --name=ue' + str(self.UE_instance) + '_daemon --chdir=' + self.UESourceCodePath + '/cmake_targets/ran_build/build -o ' + self.UESourceCodePath + '/cmake_targets/ue_' + self.testCase_id + '.log ./my-lte-uesoftmodem-run' + str(self.UE_instance) + '.sh', '\$', 5)
			SSH.command('echo $USER; nohup sudo ./my-lte-uesoftmodem-run' + str(self.UE_instance) + '.sh' + ' > ' + self.UESourceCodePath + '/cmake_targets/ue_' + self.testCase_id + '.log ' + ' 2>&1 &', self.UEUserName, 5)
			time.sleep(6)
			SSH.command('cd ../..', '\$', 5)
			doLoop = True
			loopCounter = 10
			gotSyncStatus = True
			# the 'got sync' message is for the UE threads synchronization
			while (doLoop):
				loopCounter = loopCounter - 1
				if (loopCounter == 0):
					# Here should never occur
					logging.error('"got sync" message never showed!')
					gotSyncStatus = False
					doLoop = False
					continue
				SSH.command('stdbuf -o0 cat ue_' + self.testCase_id + '.log | egrep --text --color=never -i "wait|sync"', '\$', 4)
				if self.air_interface == 'nr':
					result = re.search('Starting sync detection', SSH.getBefore())
				else:
					result = re.search('got sync', SSH.getBefore())
				if result is None:
					time.sleep(10)
				else:
					doLoop = False
					logging.debug('Found "got sync" message!')
			if gotSyncStatus == False:
				# we certainly need to stop the lte-uesoftmodem process if it is still running!
				SSH.command('ps -aux | grep --text --color=never softmodem | grep -v grep', '\$', 4)
				result = re.search('-uesoftmodem', SSH.getBefore())
				if result is not None:
					SSH.command('echo ' + self.UEPassword + ' | sudo -S killall --signal=SIGINT -r *-uesoftmodem', '\$', 4)
					time.sleep(3)
				continue
			if self.air_interface == 'nr':
				fullSyncStatus = True
				doOutterLoop = False
			else:
				# We are now checking if sync w/ eNB DOES NOT OCCUR
				# Usually during the cell synchronization stage, the UE returns with No cell synchronization message
				doLoop = True
				loopCounter = 10
				while (doLoop):
					loopCounter = loopCounter - 1
					if (loopCounter == 0):
						# Here we do have a great chance that the UE did cell-sync w/ eNB
						doLoop = False
						doOutterLoop = False
						fullSyncStatus = True
						continue
					SSH.command('stdbuf -o0 cat ue_' + self.testCase_id + '.log | egrep --text --color=never -i "wait|sync"', '\$', 4)
					result = re.search('No cell synchronization found', SSH.getBefore())
					if result is None:
						time.sleep(6)
					else:
						doLoop = False
						fullSyncStatus = False
						logging.debug('Found: "No cell synchronization" message! --> try again')
						time.sleep(6)
						SSH.command('ps -aux | grep --text --color=never softmodem | grep -v grep', '\$', 4)
						result = re.search('lte-uesoftmodem', SSH.getBefore())
						if result is not None:
							SSH.command('echo ' + self.UEPassword + ' | sudo -S killall --signal=SIGINT lte-uesoftmodem', '\$', 4)
				outterLoopCounter = outterLoopCounter - 1
				if (outterLoopCounter == 0):
					doOutterLoop = False

		if fullSyncStatus and gotSyncStatus and self.air_interface == 'lte':
			result = re.search('--no-L2-connect', str(self.Initialize_OAI_UE_args))
			if result is None:
				SSH.command('ifconfig oaitun_ue1', '\$', 4)
				SSH.command('ifconfig oaitun_ue1', '\$', 4)
				# ifconfig output is different between ubuntu 16 and ubuntu 18
				result = re.search('inet addr:1|inet 1', SSH.getBefore())
				if result is not None:
					logging.debug('\u001B[1m oaitun_ue1 interface is mounted and configured\u001B[0m')
					tunnelInterfaceStatus = True
				else:
					logging.debug(SSH.getBefore())
					logging.error('\u001B[1m oaitun_ue1 interface is either NOT mounted or NOT configured\u001B[0m')
					tunnelInterfaceStatus = False
				if self.eNBmbmsEnables[0]:
					self.command('ifconfig oaitun_uem1', '\$', 4)
					result = re.search('inet addr', SSH.getBefore())
					if result is not None:
						logging.debug('\u001B[1m oaitun_uem1 interface is mounted and configured\u001B[0m')
						tunnelInterfaceStatus = tunnelInterfaceStatus and True
					else:
						logging.error('\u001B[1m oaitun_uem1 interface is either NOT mounted or NOT configured\u001B[0m')
						tunnelInterfaceStatus = False
			else:
				tunnelInterfaceStatus = True
		else:
			tunnelInterfaceStatus = True

		SSH.close()
		if fullSyncStatus and gotSyncStatus and tunnelInterfaceStatus:
			self.CreateHtmlTestRow(self.Initialize_OAI_UE_args, 'OK', ALL_PROCESSES_OK, 'OAI UE')
			logging.debug('\u001B[1m Initialize OAI UE Completed\u001B[0m')
			if (self.ADBIPAddress != 'none'):
				self.UEDevices = []
				self.UEDevices.append('OAI-UE')
				self.UEDevicesStatus = []
				self.UEDevicesStatus.append(UE_STATUS_DETACHED)
		else:
			if self.air_interface == 'lte':
				if self.eNBmbmsEnables[0]:
					self.htmlUEFailureMsg = 'oaitun_ue1/oaitun_uem1 interfaces are either NOT mounted or NOT configured'
				else:
					self.htmlUEFailureMsg = 'oaitun_ue1 interface is either NOT mounted or NOT configured'
				self.CreateHtmlTestRow(self.Initialize_OAI_UE_args, 'KO', OAI_UE_PROCESS_NO_TUNNEL_INTERFACE, 'OAI UE')
			else:
				self.htmlUEFailureMsg = 'nr-uesoftmodem did NOT synced'
				self.CreateHtmlTestRow(self.Initialize_OAI_UE_args, 'KO', OAI_UE_PROCESS_COULD_NOT_SYNC, 'OAI UE')
			logging.error('\033[91mInitialize OAI UE Failed! \033[0m')
			self.AutoTerminateUEandeNB()

	def checkDevTTYisUnlocked(self):
		SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
		count = 0
		while count < 5:
			SSH.command('echo ' + self.ADBPassword + ' | sudo -S lsof | grep ttyUSB0', '\$', 10)
			result = re.search('picocom', SSH.getBefore())
			if result is None:
				count = 10
			else:
				time.sleep(5)
				count = count + 1
		SSH.close()

	def InitializeCatM(self):
		if self.ADBIPAddress == '' or self.ADBUserName == '' or self.ADBPassword == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		self.picocom_closure = True
		SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
		# dummy call to start a sudo session. The picocom command does NOT handle well the `sudo -S`
		SSH.command('echo ' + self.ADBPassword + ' | sudo -S ls', '\$', 10)
		SSH.command('sudo picocom --baud 921600 --flow n --databits 8 /dev/ttyUSB0', 'Terminal ready', 10)
		time.sleep(1)
		# Calling twice AT to clear all buffers
		SSH.command('AT', 'OK|ERROR', 5)
		SSH.command('AT', 'OK', 5)
		# Disabling the Radio
		SSH.command('AT+CFUN=0', 'OK', 5)
		logging.debug('\u001B[1m Cellular Functionality disabled\u001B[0m')
		# Checking if auto-attach is enabled
		SSH.command('AT^AUTOATT?', 'OK', 5)
		result = re.search('AUTOATT: (?P<state>[0-9\-]+)', SSH.getBefore())
		if result is not None:
			if result.group('state') is not None:
				autoAttachState = int(result.group('state'))
				if autoAttachState is not None:
					if autoAttachState == 0:
						SSH.command('AT^AUTOATT=1', 'OK', 5)
					logging.debug('\u001B[1m Auto-Attach enabled\u001B[0m')
		else:
			logging.debug('\u001B[1;37;41m Could not check Auto-Attach! \u001B[0m')
		# Force closure of picocom but device might still be locked
		SSH.close()
		self.picocom_closure = False
		self.CreateHtmlTestRow('N/A', 'OK', ALL_PROCESSES_OK)
		self.checkDevTTYisUnlocked()

	def TerminateCatM(self):
		if self.ADBIPAddress == '' or self.ADBUserName == '' or self.ADBPassword == '':
			GenericHelp(Version)
			sys.exit('Insufficient Parameter')
		self.picocom_closure = True
		SSH.open(self.ADBIPAddress, self.ADBUserName, self.ADBPassword)
		# dummy call to start a sudo session. The picocom command does NOT handle well the `sudo -S`
		SSH.command('echo ' + self.ADBPassword + ' | sudo -S ls', '\$', 10)
		SSH.command('sudo picocom --baud 921600 --flow n --databits 8 /dev/ttyUSB0', 'Terminal ready', 10)
		time.sleep(1)
		# Calling twice AT to clear all buffers
		SSH.command('AT', 'OK|ERROR', 5)
		SSH.command('AT', 'OK', 5)
		# Disabling the Radio
		SSH.command('AT+CFUN=0', 'OK', 5)
		logging.debug('\u001B[1m Cellular Functionality disabled\u001B[0m')