Breno Leitao wrote:

Exercise the raw getsockopt path now backed by sockopt_t. ICMP_FILTER
returns a fixed-size struct and, unlike the int/u64 options already
covered, clamps the length down to the user buffer on a short read
instead of failing, so check that semantic explicitly along with the
exact and oversized cases, the -EOPNOTSUPP path on a non-ICMP raw
socket, and an unknown optname.

Signed-off-by: Breno Leitao <leitao@debian.org>

Reviewed-by: Willem de Bruijn <willemb@google.com>

+TEST_F(raw, icmpfilter_oversize_clamped)
+{
+	char buf[16] = {};

Not a reason to respin, but instead of a raw constant, something like
sizeof(struct icmp_filter) + 1 is more robust and descriptive.