Function export9_send

freebsd/netgraph/netflow/netflow_v9.c:200–237

We have full datagram in fib data. Send it to export hook. */

/* We have full datagram in fib data. Send it to export hook. */
int
export9_send(priv_p priv, fib_export_p fe, item_p item, struct netflow_v9_packet_opt *t, int flags)
{
	struct mbuf *m = NGI_M(item);
	struct netflow_v9_export_dgram *dgram = mtod(m,
					struct netflow_v9_export_dgram *);
	struct netflow_v9_header *header = &dgram->header;
	struct timespec ts;
	int error = 0;

	if (t == NULL) {
		CTR0(KTR_NET, "export9_send(): V9 export packet without tag");
		NG_FREE_ITEM(item);
		return (0);
	}

	/* Close flowset if not closed already */
	if (m_pktlen(m) != t->flow_header)
		close_flowset(m, t);

	/* Fill export header. */
	header->count = t->count;
	header->sys_uptime = htonl(MILLIUPTIME(time_uptime));
	getnanotime(&ts);
	header->unix_secs  = htonl(ts.tv_sec);
	header->seq_num = htonl(atomic_fetchadd_32(&fe->flow9_seq, 1));
	header->count = htons(t->count);
	header->source_id = htonl(fe->domain_id);

	if (priv->export9 != NULL)
		NG_FWD_ITEM_HOOK_FLAGS(error, item, priv->export9, flags);
	else
		NG_FREE_ITEM(item);

	free(t, M_NETFLOW_GENERAL);

	return (error);
}

/* Add V9 record to dgram. */
int