Symbol: PF_SC_AF
lib/libpfctl/libpfctl.c
4284
snl_add_msg_attr_u8(&nw, PF_SC_AF, kill->af);
sys/netpfil/pf/pf_nl.c
2807
{ .type = PF_SC_AF, .off = _OUT(af), .cb = nlattr_get_uint8 },