Function pfsync_in_ureq

freebsd/netpfil/pf/if_pfsync.c:1071–1110

}

static int
pfsync_in_ureq(struct pfsync_pkt *pkt, struct mbuf *m, int offset, int count)
{
	struct pfsync_upd_req *ur, *ura;
	struct mbuf *mp;
	int len = count * sizeof(*ur);
	int i, offp;

	struct pf_state *st;

	mp = m_pulldown(m, offset, len, &offp);
	if (mp == NULL) {
		V_pfsyncstats.pfsyncs_badlen++;
		return (-1);
	}
	ura = (struct pfsync_upd_req *)(mp->m_data + offp);

	for (i = 0; i < count; i++) {
		ur = &ura[i];

		if (ur->id == 0 && ur->creatorid == 0)
			pfsync_bulk_start();
		else {
			st = pf_find_state_byid(ur->id, ur->creatorid);
			if (st == NULL) {
				V_pfsyncstats.pfsyncs_badstate++;
				continue;
			}
			if (st->state_flags & PFSTATE_NOSYNC) {
				PF_STATE_UNLOCK(st);
				continue;
			}

			pfsync_update_state_req(st);
			PF_STATE_UNLOCK(st);
		}
	}

	return (len);
}

static int
pfsync_in_del(struct pfsync_pkt *pkt, struct mbuf *m, int offset, int count)