+ {
+ u8 *data = vlib_buffer_get_current (b);
+ session_dgram_hdr_t hdr;
+
+ hdr = *(session_dgram_hdr_t *) (data - sizeof (hdr));
+
+ /* Local port assumed to be bound, not overwriting it */
+ vlib_buffer_push_udp (b, uc->c_lcl_port, hdr.rmt_port,
+ udp_csum_offload (uc));
+
+ if (uc->c_is_ip4)
+ vlib_buffer_push_ip4_custom (vm, b, &hdr.lcl_ip.ip4, &hdr.rmt_ip.ip4,
+ IP_PROTOCOL_UDP, udp_csum_offload (uc),
+ 0 /* is_df */, uc->c_dscp);
+ else
+ vlib_buffer_push_ip6 (vm, b, &hdr.lcl_ip.ip6, &hdr.rmt_ip.ip6,
+ IP_PROTOCOL_UDP);
+
+ /* Not connected udp session. Mark buffer for custom handling in
+ * udp_output */
+ vnet_buffer (b)->tcp.flags |= UDP_CONN_F_LISTEN;
+ }