rdsv3_message_populate_header
rdsv3_message_populate_header(hdr, 0, 0, 0);
rdsv3_message_populate_header(&rm->m_inc.i_hdr, 0, dport,
rdsv3_message_populate_header(&rm->m_inc.i_hdr, sport,
void rdsv3_message_populate_header(struct rdsv3_header *hdr, uint16_be_t sport,