static int get_transport_options()

in drivers/vector_kern.c [189:221]

• 28 lines of code
• 9 McCabe index (conditional complexity)

static int get_transport_options(struct arglist *def)
{
	char *transport = uml_vector_fetch_arg(def, "transport");
	char *vector = uml_vector_fetch_arg(def, "vec");

	int vec_rx = VECTOR_RX;
	int vec_tx = VECTOR_TX;
	long parsed;
	int result = 0;

	if (transport == NULL)
		return -EINVAL;

	if (vector != NULL) {
		if (kstrtoul(vector, 10, &parsed) == 0) {
			if (parsed == 0) {
				vec_rx = 0;
				vec_tx = 0;
			}
		}
	}

	if (get_bpf_flash(def))
		result = VECTOR_BPF_FLASH;

	if (strncmp(transport, TRANS_TAP, TRANS_TAP_LEN) == 0)
		return result;
	if (strncmp(transport, TRANS_HYBRID, TRANS_HYBRID_LEN) == 0)
		return (result | vec_rx | VECTOR_BPF);
	if (strncmp(transport, TRANS_RAW, TRANS_RAW_LEN) == 0)
		return (result | vec_rx | vec_tx | VECTOR_QDISC_BYPASS);
	return (result | vec_rx | vec_tx);
}