added shell script to make vcan can0 interface for testing without ha…

…rdware can

Signed-off-by: Daisuke Sato <[email protected]>

test/vcan-test.sh

@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Root privileges are required to run this script
+if [ "$EUID" -ne 0 ]; then
+  echo "This script requires root privileges to execute."
+  echo "Please rerun it using sudo."
+  exit 1
+fi
+
+# Load the vcan module
+echo "Loading the vcan module..."
+modprobe vcan
+if [ $? -ne 0 ]; then
+  echo "Failed to load the vcan module. Please check the kernel module."
+  exit 1
+fi
+
+# Check if 'can0' already exists
+if ip link show can0 &>/dev/null; then
+  echo "The virtual CAN interface 'can0' already exists. Skipping creation."
+else
+  # Create the virtual CAN interface
+  echo "Creating the virtual CAN interface 'can0'..."
+  ip link add dev can0 type vcan
+  if [ $? -ne 0 ]; then
+    echo "Failed to create the virtual CAN interface 'can0'."
+    exit 1
+  fi
+fi
+
+# Enable the virtual CAN interface
+echo "Enabling the virtual CAN interface 'can0'..."
+ip link set up can0
+if [ $? -ne 0 ]; then
+  echo "Failed to enable the virtual CAN interface 'can0'."
+  exit 1
+fi
+
+echo "The virtual CAN interface 'can0' is now set up and configured."
+echo "Verification command: ip link show can0"