add multicast files

common/tests/functional/multicast_receiver.py

@@ -0,0 +1,24 @@
+import socket
+
+# Define multicast address and port
+MULTICAST_ADDRESS = "ff12::1"
+PORT = 12345
+
+# Create a UDP socket
+sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+
+# Bind to the port
+sock.bind(('', PORT))
+
+# Tell the operating system to add the socket to the multicast group
+group_bin = socket.inet_pton(socket.AF_INET6, MULTICAST_ADDRESS)
+mreq = group_bin + b'\0' * (len(group_bin) - len(group_bin))
+sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_JOIN_GROUP, mreq)
+
+print("Listening for multicast messages...")
+
+# Receive/respond loop
+while True:
+    data, address = sock.recvfrom(1024)
+    print(f"Received message from {address}: {data.decode('utf-8')}")
+

common/tests/functional/multicast_sender.py

@@ -0,0 +1,20 @@
+import socket
+
+# Define multicast address and port
+MULTICAST_ADDRESS = "ff12::1"
+PORT = 12345
+
+# Message to send
+MESSAGE = "Hello, multicast world!"
+
+# Create a UDP socket
+sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
+
+# Set time-to-live for multicast packet (optional)
+sock.setsockopt(socket.IPPROTO_IPV6, socket.IPV6_MULTICAST_HOPS, 1)
+
+# Send message
+sock.sendto(MESSAGE.encode('utf-8'), (MULTICAST_ADDRESS, PORT))
+
+print("Message sent.")
+

common/tests/functional/select.sh

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+#!/bin/bash
+
+# Function to run multicast sender script
+run_sender() {
+    ./multicast_sender.sh
+}
+
+# Function to run multicast receiver script
+run_receiver() {
+    ./multicast_receiver.sh
+}
+
+# Prompt user for selection
+echo "Select an option:"
+echo "1. Run as Sender"
+echo "2. Run as Receiver"
+read -p "Enter your choice (1 or 2): " choice
+
+# Check user's choice and run the appropriate script
+case $choice in
+    1) run_sender;;
+    2) run_receiver;;
+    *) echo "Invalid choice. Please enter 1 or 2.";;
+esac
+