#!/bin/bash
################################################################################
#   OpenAirInterface
#   Copyright(c) 1999 - 2014 Eurecom
#
#    OpenAirInterface is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#
#    OpenAirInterface is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with OpenAirInterface.The full GNU General Public License is
#    included in this distribution in the file called "COPYING". If not,
#    see <http://www.gnu.org/licenses/>.
#
#  Contact Information
#  OpenAirInterface Admin: openair_admin@eurecom.fr
#  OpenAirInterface Tech : openair_tech@eurecom.fr
#  OpenAirInterface Dev  : openair4g-devel@eurecom.fr
#
#  Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
#
################################################################################
# file start_ue.bash
# brief
# author Lionel Gauthier
# company Eurecom
# email: lionel.gauthier@eurecom.fr
#
#------------------------------------------------
# OAI NETWORKING
#------------------------------------------------
declare -x EMULATION_DEV_INTERFACE="eth2"
declare -x EMULATION_DEV_ADDRESS="192.168.14.3"

declare -x IP_DRIVER_NAME="oai_nw_drv"
declare -x LTEIF="oai0"
declare -x UE_IPv4="10.0.2.3"
declare -x UE_IPv6="2001:2::3"
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 )
declare -x IP_DEFAULT_MARK="1" # originally 3 

#------------------------------------------------
# OAI MIH
#------------------------------------------------
declare -x UE_MIHF_IP_ADDRESS="192.168.14.3"
declare -x UE_RAL_IP_ADDRESS="192.168.14.3"
LOG_FILE="/tmp/oai_sim_ue.log"

#------------------------------------------------
MIH_LOG_FILE="mih-f_ue.log"

# EXE options
EXE_MODE="DEBUG" # "PROD" or "DEBUG"

###########################################################
THIS_SCRIPT_PATH=$(dirname $(readlink -f $0))
source $THIS_SCRIPT_PATH/env_802dot21.bash
###########################################################
bash_exec "service network-manager stop"
bash_exec "ifconfig $EMULATION_DEV_INTERFACE up $EMULATION_DEV_ADDRESS netmask 255.255.255.0"
#bash_exec "ifconfig eth1 up 192.168.57.3 netmask 255.255.255.0"
###########################################################
IPTABLES=/sbin/iptables
THIS_SCRIPT_PATH=$(dirname $(readlink -f $0))
declare -x OPENAIR_DIR=""
declare -x OPENAIR1_DIR=""
declare -x OPENAIR2_DIR=""
declare -x OPENAIR3_DIR=""
declare -x OPENAIR_TARGETS=""
###########################################################

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


##################################################
# LAUNCH UE
##################################################

echo "Bringup UE interface"
pkill oaisim             > /dev/null 2>&1
pkill oaisim             > /dev/null 2>&1
pkill $MIH_F             > /dev/null 2>&1
pkill $UE_MIH_USER       > /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"

# Check table 200 lte in /etc/iproute2/rt_tables
fgrep lte /etc/iproute2/rt_tables  > /dev/null 
if [ $? -ne 0 ]; then
    echo '200 lte ' >> /etc/iproute2/rt_tables
fi
ip rule add fwmark $IP_DEFAULT_MARK  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

/sbin/ip6tables -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type broadcast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A OUTPUT -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark $IP_DEFAULT_MARK

/sbin/ip6tables -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type broadcast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type multicast -j MARK --set-mark $IP_DEFAULT_MARK

#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 $IP_DEFAULT_MARK
/sbin/ip6tables -A OUTPUT      -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A POSTROUTING -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark $IP_DEFAULT_MARK
/sbin/iptables  -A OUTPUT      -t mangle -o oai0 -m pkttype --pkt-type unicast -j MARK --set-mark $IP_DEFAULT_MARK

rotate_log_file $MIH_LOG_FILE

echo "printing the MIH file path"
echo "$ODTONE_MIH_EXE_DIR/$MIH_F $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE"
echo "$ODTONE_MIH_EXE_DIR/$UE_MIH_USER $ODTONE_MIH_EXE_DIR/$UE_MIH_USER_CONF_FILE"

# start MIH-F
xterm -hold -title "[RELAY][UE] MIHF" -e $ODTONE_MIH_EXE_DIR/$MIH_F --log 4 --conf.file $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE > $MIH_LOG_FILE 2>&1 &
wait_process_started $MIH_F
sleep 3

NOW=$(date +"%Y-%m-%d.%Hh_%Mm_%Ss")
rm -f $LOG_FILE

UE_RAL_LINK_ID=`cat $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE | grep links | grep \= | grep -v \# | cut -d"=" -f2`
UE_RAL_LINK_ID=`trim2 $UE_RAL_LINK_ID`
UE_RAL_LINK_ID=`echo $UE_RAL_LINK_ID | cut -d" " -f1`
UE_RAL_LINK_ID_STRIPPED=${UE_RAL_LINK_ID%%??}

UE_RAL_LISTENING_PORT=`cat $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE | grep links | grep \= | grep -v \# | cut -d"=" -f2`
UE_RAL_LISTENING_PORT=`trim2 $UE_RAL_LISTENING_PORT`
UE_RAL_LISTENING_PORT=`echo $UE_RAL_LISTENING_PORT | cut -d" " -f2`

UE_MIHF_REMOTE_PORT=`cat $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE | grep local_port | grep \= | grep -v \# | tr -d " "  | cut -d'=' -f2`

UE_MIHF_ID=`cat $ODTONE_MIH_EXE_DIR/$UE_MIH_F_CONF_FILE | grep id | grep \= | grep -v \# | tr -d " "  | cut -d'=' -f2`

#xterm -hold -e gdb --args 
# $EMULATION_DEV_INTERFACE -D192.168.13.2
#sudo ip route add 239.0.0.160/28 dev $EMULATION_DEV_INTERFACE
#$OPENAIR2_DIR/NAS/DRIVER/LITE/RB_TOOL/rb_tool -a -c0 -i0 -z0 -s 10.0.0.2 -t 10.0.0.1 -r 1

if [ $EXE_MODE = "DEBUG" ] ; then 
	echo "$OPENAIR_TARGETS/SIMU/USER/oaisim -a -K $LOG_FILE -l7 -u1 -b0 -M1 -p2 -g3 -D $EMULATION_DEV_ADDRESS --ue-ral-listening-port   $UE_RAL_LISTENING_PORT --ue-ral-link-id          $UE_RAL_LINK_ID_STRIPPED  --ue-ral-ip-address       $UE_RAL_IP_ADDRESS  --ue-mihf-remote-port     $UE_MIHF_REMOTE_PORT --ue-mihf-ip-address      $UE_MIHF_IP_ADDRESS --ue-mihf-id              $UE_MIHF_ID "

	$OPENAIR_TARGETS/SIMU/USER/oaisim -a -K $LOG_FILE -l7 -u1 -b0 -M1 -p2 -g3 -D $EMULATION_DEV_INTERFACE  \
             --ue-ral-listening-port   $UE_RAL_LISTENING_PORT \
             --ue-ral-link-id          $UE_RAL_LINK_ID_STRIPPED \
             --ue-ral-ip-address       $UE_RAL_IP_ADDRESS \
             --ue-mihf-remote-port     $UE_MIHF_REMOTE_PORT \
             --ue-mihf-ip-address      $UE_MIHF_IP_ADDRESS \
             --ue-mihf-id              $UE_MIHF_ID  > log_ue.txt &

bash_exec "ip link set $LTEIF up"
bash_exec "ip addr add dev $LTEIF $UE_IPv4_CIDR"
bash_exec "ip addr add dev $LTEIF $UE_IPv6_CIDR"

else 
	echo "$OPENAIR_TARGETS/SIMU/USER/oaisim -a -l3 -u1 -b0 -M1 -p2 -g3 -D $EMULATION_DEV_ADDRESS --ue-ral-listening-port   $UE_RAL_LISTENING_PORT --ue-ral-link-id          $UE_RAL_LINK_ID_STRIPPED  --ue-ral-ip-address       $UE_RAL_IP_ADDRESS  --ue-mihf-remote-port     $UE_MIHF_REMOTE_PORT --ue-mihf-ip-address      $UE_MIHF_IP_ADDRESS --ue-mihf-id              $UE_MIHF_ID "

      $OPENAIR_TARGETS/SIMU/USER/oaisim -a -u1 -b0 -M1 -p2 -g1 -D $EMULATION_DEV_INTERFACE  \
             --ue-ral-listening-port   $UE_RAL_LISTENING_PORT \
             --ue-ral-link-id          $UE_RAL_LINK_ID_STRIPPED \
             --ue-ral-ip-address       $UE_RAL_IP_ADDRESS \
             --ue-mihf-remote-port     $UE_MIHF_REMOTE_PORT \
             --ue-mihf-ip-address      $UE_MIHF_IP_ADDRESS \
             --ue-mihf-id              $UE_MIHF_ID  > /dev/null &

fi       
 
wait_process_started oaisim


# start MIH-USER

#  wait for emulation start
tshark -c 500 -i $EMULATION_DEV_INTERFACE > /dev/null 2>&1
sleep 5

xterm -hold -title "[RELAY][UE] MIH_USER" -e $ODTONE_MIH_EXE_DIR/$UE_MIH_USER --conf.file $ODTONE_MIH_EXE_DIR/$UE_MIH_USER_CONF_FILE &
wait_process_started $UE_MIH_USER

sleep 100000