def METHOD_NAME():
  """Download repo.prop and return the full hash and prefix."""
  kernel_partial_hash, build_id = get_kernel_hash_and_build_id()
  target = get_kernel_name()
  if not build_id or not target:
    logs.log_error('Could not get kernel parameters, exiting.')
    return None
  android_kernel_repo_data = _get_repo_prop_data(build_id, target)
  if android_kernel_repo_data:
    return _get_prefix_and_full_hash(android_kernel_repo_data,
                                     kernel_partial_hash)
  return None, None