CAN_python_scanner

####CAN PYTHON SCANNER for REVERSE ENGINEERING by Prounlocks####

import can
import time

# Function to get user input for a byte range
def get_byte_range(byte_position):
    while True:
        try:
            start = int(input(f"Enter the start value for byte {byte_position} (0-255): "))
            end = int(input(f"Enter the end value for byte {byte_position} (0-255): "))
            if 0 <= start <= 255 and 0 <= end <= 255 and start <= end:
                return range(start, end + 1)
            else:
                print("Please enter valid start and end values between 0 and 255, with start <= end.")
        except ValueError:
            print("Invalid input. Please enter numeric values.")

# Create a CAN bus interface
bus = can.interface.Bus(interface='slcan', channel='COM5', bitrate=250000)

# Define the address range for scanning
start_address = 0x0000
end_address = 0x2fff

# Get byte ranges from user
byte1_range = get_byte_range(1)
byte2_range = get_byte_range(2)
byte3_range = get_byte_range(3)
byte4_range = get_byte_range(4)

# Iterate over the specified ranges and send messages
for byte1 in byte1_range:
    for byte2 in byte2_range:
        for byte3 in byte3_range:
            for byte4 in byte4_range:
                # Define the data to send
                data_to_send = [byte1, byte2, byte3, byte4]

                # Scan through the address range and send the data
                for device_id in range(start_address, end_address + 1):
                    msg = can.Message(arbitration_id=device_id, data=data_to_send, is_extended_id=True)
                    
                    try:
                        bus.send(msg)
                        print("Message sent - ID: {:08X} Data: {}".format(device_id, ' '.join(format(x, '02x') for x in data_to_send)))
                    except can.CanError:
                        print("Error sending message")

                    # If you need delay, uncomment next string, setting in seconds.
                    #time.sleep(0.01)

                    # Optionally check for any received message and stop if device responded
                    # received_msg = bus.recv(timeout=0.001)
                    # if received_msg:
                    #     print("Received message - ID: {:08X} Data: {}".format(received_msg.arbitration_id, ' '.join(format(x, '02x') for x in received_msg.data)))
                    #     break

                


# Close the CAN bus interface
bus.shutdown()