Function export_send

freebsd/netgraph/netflow/netflow.c:1008–1040

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

/* We have full datagram in privdata. Send it to export hook. */
static int
export_send(priv_p priv, fib_export_p fe, item_p item, int flags)
{
	struct mbuf *m = NGI_M(item);
	struct netflow_v5_export_dgram *dgram = mtod(m,
					struct netflow_v5_export_dgram *);
	struct netflow_v5_header *header = &dgram->header;
	struct timespec ts;
	int error = 0;

	/* Fill mbuf header. */
	m->m_len = m->m_pkthdr.len = sizeof(struct netflow_v5_record) *
	   header->count + sizeof(struct netflow_v5_header);

	/* Fill export header. */
	header->sys_uptime = htonl(MILLIUPTIME(time_uptime));
	getnanotime(&ts);
	header->unix_secs  = htonl(ts.tv_sec);
	header->unix_nsecs = htonl(ts.tv_nsec);
	header->engine_type = 0;
	header->engine_id = fe->domain_id;
	header->pad = 0;
	header->flow_seq = htonl(atomic_fetchadd_32(&fe->flow_seq,
	    header->count));
	header->count = htons(header->count);

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

	return (error);
}

/* Add export record to dgram. */
static int