icmpcode         2861 net/pf.c       	u_int8_t		 icmptype = 0, icmpcode = 0;
icmpcode         2887 net/pf.c       		icmpcode = pd->hdr.icmp->icmp_code;
icmpcode         2904 net/pf.c       		icmpcode = pd->hdr.icmp6->icmp6_code;
icmpcode         3059 net/pf.c       		else if (r->code && r->code != icmpcode + 1)