r0 = socket$inet_icmp_raw(0x2, 0x3, 0x1)
setsockopt$inet_MCAST_MSFILTER(r0, 0x0, 0x30, &(0x7f0000000380)={0x0, {{0x2, 0x0, @multicast1}}, 0x0, 0x1, [{{0xa, 0x0, @private}}]}, 0x110)