Function pfsync_in_clr

freebsd/netpfil/pf/if_pfsync.c:747–787

}

static int
pfsync_in_clr(struct pfsync_pkt *pkt, struct mbuf *m, int offset, int count)
{
	struct pfsync_clr *clr;
	struct mbuf *mp;
	int len = sizeof(*clr) * count;
	int i, offp;
	u_int32_t creatorid;

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

	for (i = 0; i < count; i++) {
		creatorid = clr[i].creatorid;

		if (clr[i].ifname[0] != '\0' &&
		    pfi_kkif_find(clr[i].ifname) == NULL)
			continue;

		for (int i = 0; i <= pf_hashmask; i++) {
			struct pf_idhash *ih = &V_pf_idhash[i];
			struct pf_state *s;
relock:
			PF_HASHROW_LOCK(ih);
			LIST_FOREACH(s, &ih->states, entry) {
				if (s->creatorid == creatorid) {
					s->state_flags |= PFSTATE_NOSYNC;
					pf_unlink_state(s, PF_ENTER_LOCKED);
					goto relock;
				}
			}
			PF_HASHROW_UNLOCK(ih);
		}
	}

	return (len);
}

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