update run opportunistic mechanism after VC algorithm

ubuntu_base/initiate

 #!/bin/bash
+sudo modprobe br_netfilter # To enable switch functions inside Ubuntu VM
 
 sudo brctl addbr br0
 sudo ip link set br0 up

ubuntu_base/opportunistic_monitor.py

@@ -45,6 +45,8 @@ def process_packet(new_packet):
             else:
                 pkt.options[index_custom_option].add_entry(node_id, inter_num, Cmd.DECISION_DROP)
 
+            del pkt.len
+            del pkt.ihl
             del pkt[IP].chksum  # Invalidate the checksum
             new_packet.set_payload(bytes(pkt))
 

ubuntu_base/vc_node.py

 import socket, struct, threading
 import math, queue
 import time
-from scapy.all import Ether, sendp, sniff, Raw, get_if_hwaddr
-import subprocess, netifaces
+from scapy.all import sendp, sniff, Raw, get_if_hwaddr
+import subprocess, netifaces, sys
+from scapy.layers.l2 import Ether
 
 # Configuration
 LISTEN_PORT = 12346  # Specify the port number to listen on
@@ -230,6 +231,17 @@ def proceed_simple_VC():
             print("Error my round is", node.round_val, "but server round is", server_round)
     print("I am", "IN VC" if node.state == State.DECIDED_IN_VC else "NOT in VC")
 
+    # Start a new Python process to run another script based on Node decision
+    if node.state == State.DECIDED_IN_VC:
+        subprocess.Popen([sys.executable, '~/Desktop/gns3_unikernel_testbed/ubuntu_base/opportunistic_monitor.py'])
+    elif node.state == State.DECIDED_NOT_VC:
+        subprocess.Popen([sys.executable, '~/Desktop/gns3_unikernel_testbed/ubuntu_base/opportunistic_node.py'])
+    else:
+        print("Error I cannot decide!!")
+
+    # Exit the current script
+    sys.exit()
+
 
 def main():
     global debug

ubuntu_base/vc_server.py

 import socket, struct
-import sys, queue, time
+import time
 import threading
 
 # Configuration