#!/bin/bash
# After Installation Script 0.2.0 for Openswitch OPX 3.0.0 

 frr_file='frr_5.0.1-1.debian9.1_amd64.deb'

# Update packages
 apt-get update
 [ "$?" != 0 ] && echo "System can't be updated, exiting" && exit 1

# FRRouting is not in repository we need to install it locally
 wget https://github.com/FRRouting/frr/releases/download/frr-5.0.1/"$frr_file"
 apt-get -y install ./"$frr_file"
 if [ "$?" != 0 ]; then
    echo "FRrouting can't be installed, exiting" && exit 1
 else
    rm "$frr_file"
 fi

# Enable routing daemons, create empty config files, change owner & group to frr, set privilleges 
 for daemon in zebra bgpd ospfd ospf6d ripd ripngd isisd eigrpd; do 
    sed -i "s/$daemon=no/$daemon=yes/g" /etc/frr/daemons 
    touch /etc/frr/"$daemon".conf
    chown frr:frr /etc/frr/"$daemon".conf
    chmod 640 /etc/frr/"$daemon".conf
 done

# Add user opxUser to groups frr & frrvty
 sudo usermod -a -G frr opxUser
 sudo usermod -a -G frrvty opxUser

# Restart the FRrouting service
 service frr restart
 if [ "$?" == 0 ]; then
    echo "FRRouting service restarted successfully"
 else
    echo "Can't restart FRRouting service" && exit 1
 fi
 
# Reduce timeout for network interfaces to 15sec during boot
 mkdir -p /etc/systemd/system/networking.service.d
 echo "[Service]" > /etc/systemd/system/networking.service.d/reduce-timeout.conf
 echo "TimeoutStartSec=15" >> /etc/systemd/system/networking.service.d/reduce-timeout.conf
 
# Flush ebtables and make the change persistent
 # Needed only for OPX 2.x.x, OPX 3.0.0 allows ARP therefore we don't need to flush ebtables
 # ebtables -t filter -F
 # echo "ebtables -t filter -F" >> /usr/bin/dn_rules.sh
  
# Wait for bringing up interface e101-032-0 during boot
 echo '#!/bin/bash' > /etc/rc.local
 echo "while [ \"\$int\" != 'e101-032-0' ]; do" >> /etc/rc.local
 echo "  int=\"\$(/sbin/ifconfig -a | /bin/grep 'e101-032-0' | cut -d \" \" -f1)\"" >> /etc/rc.local
 echo "  sleep 2" >> /etc/rc.local
 echo "done" >> /etc/rc.local
 echo >> /etc/rc.local
 echo "exit 0" >> /etc/rc.local
 
 exit 0