def main()

in cortado/rtas/linux_persistence_dpkg_netcon.py [0:0]

• 24 lines of code
• 3 McCabe index (conditional complexity)

def main() -> None:
    # Ensure the /var/lib/dpkg/info/ directory exists
    dpkg_info_dir = "/var/lib/dpkg/info/"
    if not Path(dpkg_info_dir).exists():
        log.info(f"Creating directory {dpkg_info_dir}")
        Path(dpkg_info_dir).mkdir(parents=True, exist_ok=True)

    # Path for the fake DPKG package executable
    masquerade = str(Path(dpkg_info_dir) / "rta")
    source = _common.get_resource_path("bin/netcon_exec_chain.elf")

    log.info("Creating a fake DPKG package..")
    _common.copy_file(source, masquerade)
    log.info("Granting execute permissions...")
    _ = _common.execute_command(["chmod", "+x", masquerade])

    # Execute the fake DPKG package
    log.info("Executing the fake DPKG package..")
    commands = [
        masquerade,
        "chain",
        "-h",
        "8.8.8.8",
        "-p",
        "53",
        "-c",
        "/var/lib/dpkg/info/rta netcon -h 8.8.8.8 -p 53",
    ]
    _ = _common.execute_command(commands, timeout_secs=5)

    # Cleanup
    _common.remove_file(masquerade)