test_ulcl_simple_topology.sh

#!/bin/bash

set -e

PCAP_DIR="./pcaps"
NETWORK_IF="br-free5gc"

echo "Cleaning up previous runs//containers etc..."
#sudo docker compose -f docker-compose-ulcl-build.yaml down -v
sudo rm -rf "$PCAP_DIR"
mkdir -p "$PCAP_DIR"

#echo "Building and starting the network topology that contain one i-upf and psa-upf..."
#sudo docker compose -f docker-compose-ulcl-build.yaml up -d --build

#echo "Waiting for core services (docker containers) to init..."
#sleep 30

echo "Starting tcpdump on the Docker network interface ($NETWORK_IF)..."
sudo timeout 60 tcpdump -i "$NETWORK_IF" -w "$PCAP_DIR"/ulcl_test.pcap &
TCPDUMP_PID=$!

echo " running UE attach and PDU session..."
sudo docker exec ueransim ./nr-ue -c config/uecfg.yaml > "$PCAP_DIR"/ueransim_output.log 2>&1 &
UE_PID=$!

sleep 90

echo "Stopping tcpdump..."
sudo kill -2 $TCPDUMP_PID
wait $TCPDUMP_PID 2>/dev/null || true

#echo "Cleaning up UERANSIM process..."
#kill -9 $UE_PID 2>/dev/null || true

echo "test completed;; PCAP saved to: $PCAP_DIR/ulcl_test.pcap"
echo "ueransim output saved to: $PCAP_DIR/ueransim_output.log"

#echo "shutting down the network..."
#sudo docker compose -f docker-compose-ulcl-build.yaml down -v

echo "ALl done"