Hi William:
On 12/19/17 6:08 PM, William Tu wrote:
> @@ -343,6 +355,26 @@ get_failed:
> invarg("invalid erspan index\n", *argv);
> if (erspan_idx & ~((1<<20) - 1) || erspan_idx == 0)
> invarg("erspan index must be > 0 and <=
> 20-bit\n", *argv);
> + } else if (strcmp(*argv, "erspan_ver") == 0) {
> + NEXT_ARG();
> + if (get_u8(&erspan_ver, *argv, 0))
> + invarg("invalid erspan version\n", *argv);
> + if (erspan_ver != 1 && erspan_ver != 2)
> + invarg("erspan version must be 1 or 2\n",
> *argv);
> + } else if (strcmp(*argv, "erspan_dir") == 0) {
> + NEXT_ARG();
> + if (strcmp(*argv, "ingress") == 0 ||
> + strcmp(*argv, "in") == 0)
> + erspan_dir = 0;
> + else if (strcmp(*argv, "egress") == 0 ||
> + strcmp(*argv, "e") == 0)
iproute2 has a matches() function that should be used -- it basically
allows whatever shorthand notation matches -- in this case e, eg, egr,
egres, egress all match. Checkout ip/iplink.c and search for matches.
