pf_tag_packet
if (pf_tag_packet(m, tag, rtableid))
if (pf_tag_packet(m, tag, rtableid)) {
if (pf_tag_packet(m, tag, -1)) {
pf_tag_packet(m, s ? s->tag : 0, r->rtableid);
pf_tag_packet(m, s ? s->tag : 0, r->rtableid);
int pf_tag_packet(struct mbuf *, int, int);